Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (54 commits)
  [S390] tape: Use pr_xxx instead of dev_xxx in shared driver code
  [S390] Wire up page fault events for software perf counters.
  [S390] Remove smp_cpu_not_running.
  [S390] Get rid of cpuid.h header file.
  [S390] Limit cpu detection to 256 physical cpus.
  [S390] tape: Fix device online messages
  [S390] Enable guest page hinting by default.
  [S390] use generic scatterlist.h
  [S390] s390dbf: Add description for usage of "%s" in sprintf events
  [S390] Initialize __LC_THREAD_INFO early.
  [S390] fix recursive locking on page_table_lock
  [S390] kvm: use console_initcall() to initialize s390 virtio console
  [S390] tape: reversed order of labels
  [S390] hypfs: Use "%u" instead of "%d" for unsigned ints in snprintf
  [S390] kernel: Print an error message if kernel NSS cannot be defined
  [S390] zcrypt: Free ap_device if dev_set_name fails.
  [S390] zcrypt: Use spin_lock_bh in suspend callback
  [S390] xpram: Remove checksum validation for suspend/resume
  [S390] vmur: Invalid allocation sequence for vmur class
  [S390] hypfs: remove useless variable qname
  ...

Documentation/s390/s390dbf.txt

@@ -495,6 +495,13 @@ and for each vararg a long value. So e.g. for a debug entry with a format
 string plus two varargs one would need to allocate a (3 * sizeof(long)) 
 byte data area in the debug_register() function.
 
+IMPORTANT: Using "%s" in sprintf event functions is dangerous. You can only
+use "%s" in the sprintf event functions, if the memory for the passed string is
+available as long as the debug feature exists. The reason behind this is that
+due to performance considerations only a pointer to the string is stored in
+the debug feature. If you log a string that is freed afterwards, you will get
+an OOPS when inspecting the debug feature, because then the debug feature will
+access the already freed memory.
 
 NOTE: If using the sprintf view do NOT use other event/exception functions
 than the sprintf-event and -exception functions.

Documentation/sysctl/kernel.txt

@@ -19,6 +19,7 @@ Currently, these files might (depending on your configuration)
 show up in /proc/sys/kernel:
 - acpi_video_flags
 - acct
+- callhome		     [ S390 only ]
 - auto_msgmni
 - core_pattern
 - core_uses_pid
@@ -91,6 +92,21 @@ valid for 30 seconds.
 
 ==============================================================
 
+callhome:
+
+Controls the kernel's callhome behavior in case of a kernel panic.
+
+The s390 hardware allows an operating system to send a notification
+to a service organization (callhome) in case of an operating system panic.
+
+When the value in this file is 0 (which is the default behavior)
+nothing happens in case of a kernel panic. If this value is set to "1"
+the complete kernel oops message is send to the IBM customer service
+organization in case the mainframe the Linux operating system is running
+on has a service contract with IBM.
+
+==============================================================
+
 core_pattern:
 
 core_pattern is used to specify a core dumpfile pattern name.

arch/s390/Kconfig

@@ -95,7 +95,6 @@ config S390
 	select HAVE_ARCH_TRACEHOOK
 	select INIT_ALL_POSSIBLE
 	select HAVE_PERF_COUNTERS
-	select GENERIC_ATOMIC64 if !64BIT
 
 config SCHED_OMIT_FRAME_POINTER
 	bool
@@ -481,13 +480,6 @@ config CMM_IUCV
 	  Select this option to enable the special message interface to
 	  the cooperative memory management.
 
-config PAGE_STATES
-	bool "Unused page notification"
-	help
-	  This enables the notification of unused pages to the
-	  hypervisor. The ESSA instruction is used to do the states
-	  changes between a page that has content and the unused state.
-
 config APPLDATA_BASE
 	bool "Linux - VM Monitor Stream, base infrastructure"
 	depends on PROC_FS

arch/s390/Makefile

@@ -88,8 +88,7 @@ LDFLAGS_vmlinux := -e start
 head-y		:= arch/s390/kernel/head.o arch/s390/kernel/init_task.o
 
 core-y		+= arch/s390/mm/ arch/s390/kernel/ arch/s390/crypto/ \
-		   arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/ \
-		   arch/s390/power/
+		   arch/s390/appldata/ arch/s390/hypfs/ arch/s390/kvm/
 
 libs-y		+= arch/s390/lib/
 drivers-y	+= drivers/s390/

arch/s390/hypfs/inode.c

@@ -355,11 +355,7 @@ static struct dentry *hypfs_create_file(struct super_block *sb,
 {
 	struct dentry *dentry;
 	struct inode *inode;
-	struct qstr qname;
 
-	qname.name = name;
-	qname.len = strlen(name);
-	qname.hash = full_name_hash(name, qname.len);
 	mutex_lock(&parent->d_inode->i_mutex);
 	dentry = lookup_one_len(name, parent, strlen(name));
 	if (IS_ERR(dentry)) {
@@ -426,7 +422,7 @@ struct dentry *hypfs_create_u64(struct super_block *sb, struct dentry *dir,
 	char tmp[TMP_SIZE];
 	struct dentry *dentry;
 
-	snprintf(tmp, TMP_SIZE, "%lld\n", (unsigned long long int)value);
+	snprintf(tmp, TMP_SIZE, "%llu\n", (unsigned long long int)value);
 	buffer = kstrdup(tmp, GFP_KERNEL);
 	if (!buffer)
 		return ERR_PTR(-ENOMEM);

arch/s390/include/asm/atomic.h

@@ -1,33 +1,23 @@
 #ifndef __ARCH_S390_ATOMIC__
 #define __ARCH_S390_ATOMIC__
 
-#include <linux/compiler.h>
-#include <linux/types.h>
-
 /*
- *  include/asm-s390/atomic.h
+ * Copyright 1999,2009 IBM Corp.
+ * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *	      Denis Joseph Barrow,
+ *	      Arnd Bergmann <arndb@de.ibm.com>,
  *
- *  S390 version
- *    Copyright (C) 1999-2005 IBM Deutschland Entwicklung GmbH, IBM Corporation
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *               Denis Joseph Barrow,
- *		 Arnd Bergmann (arndb@de.ibm.com)
- *
- *  Derived from "include/asm-i386/bitops.h"
- *    Copyright (C) 1992, Linus Torvalds
+ * Atomic operations that C can't guarantee us.
+ * Useful for resource counting etc.
+ * s390 uses 'Compare And Swap' for atomicity in SMP enviroment.
  *
  */
 
-/*
- * Atomic operations that C can't guarantee us.  Useful for
- * resource counting etc..
- * S390 uses 'Compare And Swap' for atomicity in SMP enviroment
- */
+#include <linux/compiler.h>
+#include <linux/types.h>
 
 #define ATOMIC_INIT(i)  { (i) }
 
-#ifdef __KERNEL__
-
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
 
 #define __CS_LOOP(ptr, op_val, op_string) ({				\
@@ -77,7 +67,7 @@ static inline void atomic_set(atomic_t *v, int i)
 	barrier();
 }
 
-static __inline__ int atomic_add_return(int i, atomic_t * v)
+static inline int atomic_add_return(int i, atomic_t *v)
 {
 	return __CS_LOOP(v, i, "ar");
 }
@@ -87,7 +77,7 @@ static __inline__ int atomic_add_return(int i, atomic_t * v)
 #define atomic_inc_return(_v)		atomic_add_return(1, _v)
 #define atomic_inc_and_test(_v)		(atomic_add_return(1, _v) == 0)
 
-static __inline__ int atomic_sub_return(int i, atomic_t * v)
+static inline int atomic_sub_return(int i, atomic_t *v)
 {
 	return __CS_LOOP(v, i, "sr");
 }
@@ -97,19 +87,19 @@ static __inline__ int atomic_sub_return(int i, atomic_t * v)
 #define atomic_dec_return(_v)		atomic_sub_return(1, _v)
 #define atomic_dec_and_test(_v)		(atomic_sub_return(1, _v) == 0)
 
-static __inline__ void atomic_clear_mask(unsigned long mask, atomic_t * v)
+static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
 {
-	       __CS_LOOP(v, ~mask, "nr");
+	__CS_LOOP(v, ~mask, "nr");
 }
 
-static __inline__ void atomic_set_mask(unsigned long mask, atomic_t * v)
+static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
 {
-	       __CS_LOOP(v, mask, "or");
+	__CS_LOOP(v, mask, "or");
 }
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 
-static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
+static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
 	asm volatile(
@@ -127,7 +117,7 @@ static __inline__ int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return old;
 }
 
-static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+static inline int atomic_add_unless(atomic_t *v, int a, int u)
 {
 	int c, old;
 	c = atomic_read(v);
@@ -146,9 +136,10 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #undef __CS_LOOP
 
-#ifdef __s390x__
 #define ATOMIC64_INIT(i)  { (i) }
 
+#ifdef CONFIG_64BIT
+
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
 
 #define __CSG_LOOP(ptr, op_val, op_string) ({				\
@@ -162,7 +153,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 		: "=&d" (old_val), "=&d" (new_val),			\
 		  "=Q" (((atomic_t *)(ptr))->counter)			\
 		: "d" (op_val),	"Q" (((atomic_t *)(ptr))->counter)	\
-		: "cc", "memory" );					\
+		: "cc", "memory");					\
 	new_val;							\
 })
 
@@ -180,7 +171,7 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 		  "=m" (((atomic_t *)(ptr))->counter)			\
 		: "a" (ptr), "d" (op_val),				\
 		  "m" (((atomic_t *)(ptr))->counter)			\
-		: "cc", "memory" );					\
+		: "cc", "memory");					\
 	new_val;							\
 })
 
@@ -198,39 +189,29 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 	barrier();
 }
 
-static __inline__ long long atomic64_add_return(long long i, atomic64_t * v)
+static inline long long atomic64_add_return(long long i, atomic64_t *v)
 {
 	return __CSG_LOOP(v, i, "agr");
 }
-#define atomic64_add(_i, _v)		atomic64_add_return(_i, _v)
-#define atomic64_add_negative(_i, _v)	(atomic64_add_return(_i, _v) < 0)
-#define atomic64_inc(_v)		atomic64_add_return(1, _v)
-#define atomic64_inc_return(_v)		atomic64_add_return(1, _v)
-#define atomic64_inc_and_test(_v)	(atomic64_add_return(1, _v) == 0)
 
-static __inline__ long long atomic64_sub_return(long long i, atomic64_t * v)
+static inline long long atomic64_sub_return(long long i, atomic64_t *v)
 {
 	return __CSG_LOOP(v, i, "sgr");
 }
-#define atomic64_sub(_i, _v)		atomic64_sub_return(_i, _v)
-#define atomic64_sub_and_test(_i, _v)	(atomic64_sub_return(_i, _v) == 0)
-#define atomic64_dec(_v)		atomic64_sub_return(1, _v)
-#define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
-#define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 
-static __inline__ void atomic64_clear_mask(unsigned long mask, atomic64_t * v)
+static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v)
 {
-	       __CSG_LOOP(v, ~mask, "ngr");
+	__CSG_LOOP(v, ~mask, "ngr");
 }
 
-static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
+static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v)
 {
-	       __CSG_LOOP(v, mask, "ogr");
+	__CSG_LOOP(v, mask, "ogr");
 }
 
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
 
-static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
+static inline long long atomic64_cmpxchg(atomic64_t *v,
 					     long long old, long long new)
 {
 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 2)
@@ -249,8 +230,112 @@ static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
 	return old;
 }
 
-static __inline__ int atomic64_add_unless(atomic64_t *v,
-					  long long a, long long u)
+#undef __CSG_LOOP
+
+#else /* CONFIG_64BIT */
+
+typedef struct {
+	long long counter;
+} atomic64_t;
+
+static inline long long atomic64_read(const atomic64_t *v)
+{
+	register_pair rp;
+
+	asm volatile(
+		"	lm	%0,%N0,0(%1)"
+		: "=&d" (rp)
+		: "a" (&v->counter), "m" (v->counter)
+		);
+	return rp.pair;
+}
+
+static inline void atomic64_set(atomic64_t *v, long long i)
+{
+	register_pair rp = {.pair = i};
+
+	asm volatile(
+		"	stm	%1,%N1,0(%2)"
+		: "=m" (v->counter)
+		: "d" (rp), "a" (&v->counter)
+		);
+}
+
+static inline long long atomic64_xchg(atomic64_t *v, long long new)
+{
+	register_pair rp_new = {.pair = new};
+	register_pair rp_old;
+
+	asm volatile(
+		"	lm	%0,%N0,0(%2)\n"
+		"0:	cds	%0,%3,0(%2)\n"
+		"	jl	0b\n"
+		: "=&d" (rp_old), "+m" (v->counter)
+		: "a" (&v->counter), "d" (rp_new)
+		: "cc");
+	return rp_old.pair;
+}
+
+static inline long long atomic64_cmpxchg(atomic64_t *v,
+					 long long old, long long new)
+{
+	register_pair rp_old = {.pair = old};
+	register_pair rp_new = {.pair = new};
+
+	asm volatile(
+		"	cds	%0,%3,0(%2)"
+		: "+&d" (rp_old), "+m" (v->counter)
+		: "a" (&v->counter), "d" (rp_new)
+		: "cc");
+	return rp_old.pair;
+}
+
+
+static inline long long atomic64_add_return(long long i, atomic64_t *v)
+{
+	long long old, new;
+
+	do {
+		old = atomic64_read(v);
+		new = old + i;
+	} while (atomic64_cmpxchg(v, old, new) != old);
+	return new;
+}
+
+static inline long long atomic64_sub_return(long long i, atomic64_t *v)
+{
+	long long old, new;
+
+	do {
+		old = atomic64_read(v);
+		new = old - i;
+	} while (atomic64_cmpxchg(v, old, new) != old);
+	return new;
+}
+
+static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v)
+{
+	long long old, new;
+
+	do {
+		old = atomic64_read(v);
+		new = old | mask;
+	} while (atomic64_cmpxchg(v, old, new) != old);
+}
+
+static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v)
+{
+	long long old, new;
+
+	do {
+		old = atomic64_read(v);
+		new = old & mask;
+	} while (atomic64_cmpxchg(v, old, new) != old);
+}
+
+#endif /* CONFIG_64BIT */
+
+static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 {
 	long long c, old;
 	c = atomic64_read(v);
@@ -265,15 +350,17 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
 	return c != u;
 }
 
-#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
-
-#undef __CSG_LOOP
-
-#else /* __s390x__ */
-
-#include <asm-generic/atomic64.h>
-
-#endif /* __s390x__ */
+#define atomic64_add(_i, _v)		atomic64_add_return(_i, _v)
+#define atomic64_add_negative(_i, _v)	(atomic64_add_return(_i, _v) < 0)
+#define atomic64_inc(_v)		atomic64_add_return(1, _v)
+#define atomic64_inc_return(_v)		atomic64_add_return(1, _v)
+#define atomic64_inc_and_test(_v)	(atomic64_add_return(1, _v) == 0)
+#define atomic64_sub(_i, _v)		atomic64_sub_return(_i, _v)
+#define atomic64_sub_and_test(_i, _v)	(atomic64_sub_return(_i, _v) == 0)
+#define atomic64_dec(_v)		atomic64_sub_return(1, _v)
+#define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
+#define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
+#define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
 
 #define smp_mb__before_atomic_dec()	smp_mb()
 #define smp_mb__after_atomic_dec()	smp_mb()
@@ -281,5 +368,5 @@ static __inline__ int atomic64_add_unless(atomic64_t *v,
 #define smp_mb__after_atomic_inc()	smp_mb()
 
 #include <asm-generic/atomic-long.h>
-#endif /* __KERNEL__ */
+
 #endif /* __ARCH_S390_ATOMIC__  */

arch/s390/include/asm/checksum.h

@@ -78,28 +78,11 @@ csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum)
  */
 static inline __sum16 csum_fold(__wsum sum)
 {
-#ifndef __s390x__
-	register_pair rp;
+	u32 csum = (__force u32) sum;
 
-	asm volatile(
-		"	slr	%N1,%N1\n"	/* %0 = H L */
-		"	lr	%1,%0\n"	/* %0 = H L, %1 = H L 0 0 */
-		"	srdl	%1,16\n"	/* %0 = H L, %1 = 0 H L 0 */
-		"	alr	%1,%N1\n"	/* %0 = H L, %1 = L H L 0 */
-		"	alr	%0,%1\n"	/* %0 = H+L+C L+H */
-		"	srl	%0,16\n"	/* %0 = H+L+C */
-		: "+&d" (sum), "=d" (rp) : : "cc");
-#else /* __s390x__ */
-	asm volatile(
-		"	sr	3,3\n"		/* %0 = H*65536 + L */
-		"	lr	2,%0\n"		/* %0 = H L, 2/3 = H L / 0 0 */
-		"	srdl	2,16\n"		/* %0 = H L, 2/3 = 0 H / L 0 */
-		"	alr	2,3\n"		/* %0 = H L, 2/3 = L H / L 0 */
-		"	alr	%0,2\n"		/* %0 = H+L+C L+H */
-		"	srl	%0,16\n"	/* %0 = H+L+C */
-		: "+&d" (sum) : : "cc", "2", "3");
-#endif /* __s390x__ */
-	return (__force __sum16) ~sum;
+	csum += (csum >> 16) + (csum << 16);
+	csum >>= 16;
+	return (__force __sum16) ~csum;
 }
 
 /*

arch/s390/include/asm/chsc.h

@@ -125,4 +125,32 @@ struct chsc_cpd_info {
 #define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
 #define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
 
+#ifdef __KERNEL__
+
+struct css_general_char {
+	u64 : 12;
+	u32 dynio : 1;	 /* bit 12 */
+	u32 : 28;
+	u32 aif : 1;	 /* bit 41 */
+	u32 : 3;
+	u32 mcss : 1;	 /* bit 45 */
+	u32 fcs : 1;	 /* bit 46 */
+	u32 : 1;
+	u32 ext_mb : 1;  /* bit 48 */
+	u32 : 7;
+	u32 aif_tdd : 1; /* bit 56 */
+	u32 : 1;
+	u32 qebsm : 1;	 /* bit 58 */
+	u32 : 8;
+	u32 aif_osa : 1; /* bit 67 */
+	u32 : 14;
+	u32 cib : 1;	 /* bit 82 */
+	u32 : 5;
+	u32 fcx : 1;	 /* bit 88 */
+	u32 : 7;
+}__attribute__((packed));
+
+extern struct css_general_char css_general_characteristics;
+
+#endif /* __KERNEL__ */
 #endif

arch/s390/include/asm/cio.h

@@ -15,228 +15,7 @@
 #define LPM_ANYPATH 0xff
 #define __MAX_CSSID 0
 
-/**
- * struct cmd_scsw - command-mode subchannel status word
- * @key: subchannel key
- * @sctl: suspend control
- * @eswf: esw format
- * @cc: deferred condition code
- * @fmt: format
- * @pfch: prefetch
- * @isic: initial-status interruption control
- * @alcc: address-limit checking control
- * @ssi: suppress-suspended interruption
- * @zcc: zero condition code
- * @ectl: extended control
- * @pno: path not operational
- * @res: reserved
- * @fctl: function control
- * @actl: activity control
- * @stctl: status control
- * @cpa: channel program address
- * @dstat: device status
- * @cstat: subchannel status
- * @count: residual count
- */
-struct cmd_scsw {
-	__u32 key  : 4;
-	__u32 sctl : 1;
-	__u32 eswf : 1;
-	__u32 cc   : 2;
-	__u32 fmt  : 1;
-	__u32 pfch : 1;
-	__u32 isic : 1;
-	__u32 alcc : 1;
-	__u32 ssi  : 1;
-	__u32 zcc  : 1;
-	__u32 ectl : 1;
-	__u32 pno  : 1;
-	__u32 res  : 1;
-	__u32 fctl : 3;
-	__u32 actl : 7;
-	__u32 stctl : 5;
-	__u32 cpa;
-	__u32 dstat : 8;
-	__u32 cstat : 8;
-	__u32 count : 16;
-} __attribute__ ((packed));
-
-/**
- * struct tm_scsw - transport-mode subchannel status word
- * @key: subchannel key
- * @eswf: esw format
- * @cc: deferred condition code
- * @fmt: format
- * @x: IRB-format control
- * @q: interrogate-complete
- * @ectl: extended control
- * @pno: path not operational
- * @fctl: function control
- * @actl: activity control
- * @stctl: status control
- * @tcw: TCW address
- * @dstat: device status
- * @cstat: subchannel status
- * @fcxs: FCX status
- * @schxs: subchannel-extended status
- */
-struct tm_scsw {
-	u32 key:4;
-	u32 :1;
-	u32 eswf:1;
-	u32 cc:2;
-	u32 fmt:3;
-	u32 x:1;
-	u32 q:1;
-	u32 :1;
-	u32 ectl:1;
-	u32 pno:1;
-	u32 :1;
-	u32 fctl:3;
-	u32 actl:7;
-	u32 stctl:5;
-	u32 tcw;
-	u32 dstat:8;
-	u32 cstat:8;
-	u32 fcxs:8;
-	u32 schxs:8;
-} __attribute__ ((packed));
-
-/**
- * union scsw - subchannel status word
- * @cmd: command-mode SCSW
- * @tm: transport-mode SCSW
- */
-union scsw {
-	struct cmd_scsw cmd;
-	struct tm_scsw tm;
-} __attribute__ ((packed));
-
-int scsw_is_tm(union scsw *scsw);
-u32 scsw_key(union scsw *scsw);
-u32 scsw_eswf(union scsw *scsw);
-u32 scsw_cc(union scsw *scsw);
-u32 scsw_ectl(union scsw *scsw);
-u32 scsw_pno(union scsw *scsw);
-u32 scsw_fctl(union scsw *scsw);
-u32 scsw_actl(union scsw *scsw);
-u32 scsw_stctl(union scsw *scsw);
-u32 scsw_dstat(union scsw *scsw);
-u32 scsw_cstat(union scsw *scsw);
-int scsw_is_solicited(union scsw *scsw);
-int scsw_is_valid_key(union scsw *scsw);
-int scsw_is_valid_eswf(union scsw *scsw);
-int scsw_is_valid_cc(union scsw *scsw);
-int scsw_is_valid_ectl(union scsw *scsw);
-int scsw_is_valid_pno(union scsw *scsw);
-int scsw_is_valid_fctl(union scsw *scsw);
-int scsw_is_valid_actl(union scsw *scsw);
-int scsw_is_valid_stctl(union scsw *scsw);
-int scsw_is_valid_dstat(union scsw *scsw);
-int scsw_is_valid_cstat(union scsw *scsw);
-int scsw_cmd_is_valid_key(union scsw *scsw);
-int scsw_cmd_is_valid_sctl(union scsw *scsw);
-int scsw_cmd_is_valid_eswf(union scsw *scsw);
-int scsw_cmd_is_valid_cc(union scsw *scsw);
-int scsw_cmd_is_valid_fmt(union scsw *scsw);
-int scsw_cmd_is_valid_pfch(union scsw *scsw);
-int scsw_cmd_is_valid_isic(union scsw *scsw);
-int scsw_cmd_is_valid_alcc(union scsw *scsw);
-int scsw_cmd_is_valid_ssi(union scsw *scsw);
-int scsw_cmd_is_valid_zcc(union scsw *scsw);
-int scsw_cmd_is_valid_ectl(union scsw *scsw);
-int scsw_cmd_is_valid_pno(union scsw *scsw);
-int scsw_cmd_is_valid_fctl(union scsw *scsw);
-int scsw_cmd_is_valid_actl(union scsw *scsw);
-int scsw_cmd_is_valid_stctl(union scsw *scsw);
-int scsw_cmd_is_valid_dstat(union scsw *scsw);
-int scsw_cmd_is_valid_cstat(union scsw *scsw);
-int scsw_cmd_is_solicited(union scsw *scsw);
-int scsw_tm_is_valid_key(union scsw *scsw);
-int scsw_tm_is_valid_eswf(union scsw *scsw);
-int scsw_tm_is_valid_cc(union scsw *scsw);
-int scsw_tm_is_valid_fmt(union scsw *scsw);
-int scsw_tm_is_valid_x(union scsw *scsw);
-int scsw_tm_is_valid_q(union scsw *scsw);
-int scsw_tm_is_valid_ectl(union scsw *scsw);
-int scsw_tm_is_valid_pno(union scsw *scsw);
-int scsw_tm_is_valid_fctl(union scsw *scsw);
-int scsw_tm_is_valid_actl(union scsw *scsw);
-int scsw_tm_is_valid_stctl(union scsw *scsw);
-int scsw_tm_is_valid_dstat(union scsw *scsw);
-int scsw_tm_is_valid_cstat(union scsw *scsw);
-int scsw_tm_is_valid_fcxs(union scsw *scsw);
-int scsw_tm_is_valid_schxs(union scsw *scsw);
-int scsw_tm_is_solicited(union scsw *scsw);
-
-#define SCSW_FCTL_CLEAR_FUNC	 0x1
-#define SCSW_FCTL_HALT_FUNC	 0x2
-#define SCSW_FCTL_START_FUNC	 0x4
-
-#define SCSW_ACTL_SUSPENDED	 0x1
-#define SCSW_ACTL_DEVACT	 0x2
-#define SCSW_ACTL_SCHACT	 0x4
-#define SCSW_ACTL_CLEAR_PEND	 0x8
-#define SCSW_ACTL_HALT_PEND	 0x10
-#define SCSW_ACTL_START_PEND	 0x20
-#define SCSW_ACTL_RESUME_PEND	 0x40
-
-#define SCSW_STCTL_STATUS_PEND	 0x1
-#define SCSW_STCTL_SEC_STATUS	 0x2
-#define SCSW_STCTL_PRIM_STATUS	 0x4
-#define SCSW_STCTL_INTER_STATUS	 0x8
-#define SCSW_STCTL_ALERT_STATUS	 0x10
-
-#define DEV_STAT_ATTENTION	 0x80
-#define DEV_STAT_STAT_MOD	 0x40
-#define DEV_STAT_CU_END		 0x20
-#define DEV_STAT_BUSY		 0x10
-#define DEV_STAT_CHN_END	 0x08
-#define DEV_STAT_DEV_END	 0x04
-#define DEV_STAT_UNIT_CHECK	 0x02
-#define DEV_STAT_UNIT_EXCEP	 0x01
-
-#define SCHN_STAT_PCI		 0x80
-#define SCHN_STAT_INCORR_LEN	 0x40
-#define SCHN_STAT_PROG_CHECK	 0x20
-#define SCHN_STAT_PROT_CHECK	 0x10
-#define SCHN_STAT_CHN_DATA_CHK	 0x08
-#define SCHN_STAT_CHN_CTRL_CHK	 0x04
-#define SCHN_STAT_INTF_CTRL_CHK	 0x02
-#define SCHN_STAT_CHAIN_CHECK	 0x01
-
-/*
- * architectured values for first sense byte
- */
-#define SNS0_CMD_REJECT		0x80
-#define SNS_CMD_REJECT		SNS0_CMD_REJEC
-#define SNS0_INTERVENTION_REQ	0x40
-#define SNS0_BUS_OUT_CHECK	0x20
-#define SNS0_EQUIPMENT_CHECK	0x10
-#define SNS0_DATA_CHECK		0x08
-#define SNS0_OVERRUN		0x04
-#define SNS0_INCOMPL_DOMAIN	0x01
-
-/*
- * architectured values for second sense byte
- */
-#define SNS1_PERM_ERR		0x80
-#define SNS1_INV_TRACK_FORMAT	0x40
-#define SNS1_EOC		0x20
-#define SNS1_MESSAGE_TO_OPER	0x10
-#define SNS1_NO_REC_FOUND	0x08
-#define SNS1_FILE_PROTECTED	0x04
-#define SNS1_WRITE_INHIBITED	0x02
-#define SNS1_INPRECISE_END	0x01
-
-/*
- * architectured values for third sense byte
- */
-#define SNS2_REQ_INH_WRITE	0x80
-#define SNS2_CORRECTABLE	0x40
-#define SNS2_FIRST_LOG_ERR	0x20
-#define SNS2_ENV_DATA_PRESENT	0x10
-#define SNS2_INPRECISE_END	0x04
+#include <asm/scsw.h>
 
 /**
  * struct ccw1 - channel command word

arch/s390/include/asm/cpu.h

@@ -0,0 +1,26 @@
+/*
+ *    Copyright IBM Corp. 2000,2009
+ *    Author(s): Hartmut Penner <hp@de.ibm.com>,
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Christian Ehrhardt <ehrhardt@de.ibm.com>,
+ */
+
+#ifndef _ASM_S390_CPU_H
+#define _ASM_S390_CPU_H
+
+#define MAX_CPU_ADDRESS 255
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+struct cpuid
+{
+	unsigned int version :	8;
+	unsigned int ident   : 24;
+	unsigned int machine : 16;
+	unsigned int unused  : 16;
+} __packed;
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_S390_CPU_H */

arch/s390/include/asm/cpuid.h

@@ -1,25 +0,0 @@
-/*
- *    Copyright IBM Corp. 2000,2009
- *    Author(s): Hartmut Penner <hp@de.ibm.com>,
- *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
- *		 Christian Ehrhardt <ehrhardt@de.ibm.com>
- */
-
-#ifndef _ASM_S390_CPUID_H_
-#define _ASM_S390_CPUID_H_
-
-/*
- *  CPU type and hardware bug flags. Kept separately for each CPU.
- *  Members of this structure are referenced in head.S, so think twice
- *  before touching them. [mj]
- */
-
-typedef struct
-{
-	unsigned int version :	8;
-	unsigned int ident   : 24;
-	unsigned int machine : 16;
-	unsigned int unused  : 16;
-} __attribute__ ((packed)) cpuid_t;
-
-#endif /* _ASM_S390_CPUID_H_ */

arch/s390/include/asm/debug.h

@@ -167,6 +167,10 @@ debug_text_event(debug_info_t* id, int level, const char* txt)
         return debug_event_common(id,level,txt,strlen(txt));
 }
 
+/*
+ * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are
+ * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details!
+ */
 extern debug_entry_t *
 debug_sprintf_event(debug_info_t* id,int level,char *string,...)
 	__attribute__ ((format(printf, 3, 4)));
@@ -206,7 +210,10 @@ debug_text_exception(debug_info_t* id, int level, const char* txt)
         return debug_exception_common(id,level,txt,strlen(txt));
 }
 
-
+/*
+ * IMPORTANT: Use "%s" in sprintf format strings with care! Only pointers are
+ * stored in the s390dbf. See Documentation/s390/s390dbf.txt for more details!
+ */
 extern debug_entry_t *
 debug_sprintf_exception(debug_info_t* id,int level,char *string,...)
 	__attribute__ ((format(printf, 3, 4)));

arch/s390/include/asm/hardirq.h

@@ -18,13 +18,6 @@
 #include <linux/interrupt.h>
 #include <asm/lowcore.h>
 
-/* irq_cpustat_t is unused currently, but could be converted
- * into a percpu variable instead of storing softirq_pending
- * on the lowcore */
-typedef struct {
-	unsigned int __softirq_pending;
-} irq_cpustat_t;
-
 #define local_softirq_pending() (S390_lowcore.softirq_pending)
 
 #define __ARCH_IRQ_STAT

arch/s390/include/asm/ipl.h

@@ -57,6 +57,8 @@ struct ipl_block_fcp {
 } __attribute__((packed));
 
 #define DIAG308_VMPARM_SIZE	64
+#define DIAG308_SCPDATA_SIZE	(PAGE_SIZE - (sizeof(struct ipl_list_hdr) + \
+				 offsetof(struct ipl_block_fcp, scp_data)))
 
 struct ipl_block_ccw {
 	u8  load_parm[8];
@@ -91,7 +93,8 @@ extern void do_halt(void);
 extern void do_poff(void);
 extern void ipl_save_parameters(void);
 extern void ipl_update_parameters(void);
-extern void get_ipl_vmparm(char *);
+extern size_t append_ipl_vmparm(char *, size_t);
+extern size_t append_ipl_scpdata(char *, size_t);
 
 enum {
 	IPL_DEVNO_VALID		= 1,

arch/s390/include/asm/kvm_host.h

@@ -17,7 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/kvm_host.h>
 #include <asm/debug.h>
-#include <asm/cpuid.h>
+#include <asm/cpu.h>
 
 #define KVM_MAX_VCPUS 64
 #define KVM_MEMORY_SLOTS 32
@@ -217,8 +217,8 @@ struct kvm_vcpu_arch {
 	struct hrtimer    ckc_timer;
 	struct tasklet_struct tasklet;
 	union  {
-		cpuid_t	  cpu_id;
-		u64	  stidp_data;
+		struct cpuid	cpu_id;
+		u64		stidp_data;
 	};
 };
 

arch/s390/include/asm/kvm_virtio.h

@@ -54,14 +54,4 @@ struct kvm_vqconfig {
  * This is pagesize for historical reasons. */
 #define KVM_S390_VIRTIO_RING_ALIGN	4096
 
-#ifdef __KERNEL__
-/* early virtio console setup */
-#ifdef CONFIG_S390_GUEST
-extern void s390_virtio_console_init(void);
-#else
-static inline void s390_virtio_console_init(void)
-{
-}
-#endif /* CONFIG_VIRTIO_CONSOLE */
-#endif /* __KERNEL__ */
 #endif

arch/s390/include/asm/lowcore.h

@@ -132,7 +132,7 @@
 
 #ifndef __ASSEMBLY__
 
-#include <asm/cpuid.h>
+#include <asm/cpu.h>
 #include <asm/ptrace.h>
 #include <linux/types.h>
 
@@ -275,7 +275,7 @@ struct _lowcore
 	__u32	user_exec_asce;			/* 0x02ac */
 
 	/* SMP info area */
-	cpuid_t	cpu_id;				/* 0x02b0 */
+	struct cpuid cpu_id;			/* 0x02b0 */
 	__u32	cpu_nr;				/* 0x02b8 */
 	__u32	softirq_pending;		/* 0x02bc */
 	__u32	percpu_offset;			/* 0x02c0 */
@@ -380,7 +380,7 @@ struct _lowcore
 	__u64	user_exec_asce;			/* 0x0318 */
 
 	/* SMP info area */
-	cpuid_t	cpu_id;				/* 0x0320 */
+	struct cpuid cpu_id;			/* 0x0320 */
 	__u32	cpu_nr;				/* 0x0328 */
 	__u32	softirq_pending;		/* 0x032c */
 	__u64	percpu_offset;			/* 0x0330 */

arch/s390/include/asm/mmu.h

@@ -2,6 +2,7 @@
 #define __MMU_H
 
 typedef struct {
+	spinlock_t list_lock;
 	struct list_head crst_list;
 	struct list_head pgtable_list;
 	unsigned long asce_bits;

arch/s390/include/asm/page.h

@@ -125,8 +125,6 @@ page_get_storage_key(unsigned long addr)
 	return skey;
 }
 
-#ifdef CONFIG_PAGE_STATES
-
 struct page;
 void arch_free_page(struct page *page, int order);
 void arch_alloc_page(struct page *page, int order);
@@ -134,8 +132,6 @@ void arch_alloc_page(struct page *page, int order);
 #define HAVE_ARCH_FREE_PAGE
 #define HAVE_ARCH_ALLOC_PAGE
 
-#endif
-
 #endif /* !__ASSEMBLY__ */
 
 #define __PAGE_OFFSET           0x0UL

arch/s390/include/asm/pgalloc.h

@@ -140,6 +140,7 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
+	spin_lock_init(&mm->context.list_lock);
 	INIT_LIST_HEAD(&mm->context.crst_list);
 	INIT_LIST_HEAD(&mm->context.pgtable_list);
 	return (pgd_t *) crst_table_alloc(mm, s390_noexec);

arch/s390/include/asm/processor.h

@@ -14,7 +14,7 @@
 #define __ASM_S390_PROCESSOR_H
 
 #include <linux/linkage.h>
-#include <asm/cpuid.h>
+#include <asm/cpu.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
 #include <asm/setup.h>
@@ -26,7 +26,7 @@
  */
 #define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
 
-static inline void get_cpu_id(cpuid_t *ptr)
+static inline void get_cpu_id(struct cpuid *ptr)
 {
 	asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
 }

arch/s390/include/asm/scatterlist.h

@@ -1,19 +1 @@
-#ifndef _ASMS390_SCATTERLIST_H
-#define _ASMS390_SCATTERLIST_H
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-    unsigned long sg_magic;
-#endif
-    unsigned long page_link;
-    unsigned int offset;
-    unsigned int length;
-};
-
-#ifdef __s390x__
-#define ISA_DMA_THRESHOLD (0xffffffffffffffffUL)
-#else
-#define ISA_DMA_THRESHOLD (0xffffffffUL)
-#endif
-
-#endif /* _ASMS390X_SCATTERLIST_H */
+#include <asm-generic/scatterlist.h>

drivers/s390/cio/scsw.c → arch/s390/include/asm/scsw.h

@@ -1,15 +1,182 @@
 /*
  *  Helper functions for scsw access.
  *
- *    Copyright IBM Corp. 2008
+ *    Copyright IBM Corp. 2008,2009
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
  */
 
+#ifndef _ASM_S390_SCSW_H_
+#define _ASM_S390_SCSW_H_
+
 #include <linux/types.h>
-#include <linux/module.h>
+#include <asm/chsc.h>
 #include <asm/cio.h>
-#include "css.h"
-#include "chsc.h"
+
+/**
+ * struct cmd_scsw - command-mode subchannel status word
+ * @key: subchannel key
+ * @sctl: suspend control
+ * @eswf: esw format
+ * @cc: deferred condition code
+ * @fmt: format
+ * @pfch: prefetch
+ * @isic: initial-status interruption control
+ * @alcc: address-limit checking control
+ * @ssi: suppress-suspended interruption
+ * @zcc: zero condition code
+ * @ectl: extended control
+ * @pno: path not operational
+ * @res: reserved
+ * @fctl: function control
+ * @actl: activity control
+ * @stctl: status control
+ * @cpa: channel program address
+ * @dstat: device status
+ * @cstat: subchannel status
+ * @count: residual count
+ */
+struct cmd_scsw {
+	__u32 key  : 4;
+	__u32 sctl : 1;
+	__u32 eswf : 1;
+	__u32 cc   : 2;
+	__u32 fmt  : 1;
+	__u32 pfch : 1;
+	__u32 isic : 1;
+	__u32 alcc : 1;
+	__u32 ssi  : 1;
+	__u32 zcc  : 1;
+	__u32 ectl : 1;
+	__u32 pno  : 1;
+	__u32 res  : 1;
+	__u32 fctl : 3;
+	__u32 actl : 7;
+	__u32 stctl : 5;
+	__u32 cpa;
+	__u32 dstat : 8;
+	__u32 cstat : 8;
+	__u32 count : 16;
+} __attribute__ ((packed));
+
+/**
+ * struct tm_scsw - transport-mode subchannel status word
+ * @key: subchannel key
+ * @eswf: esw format
+ * @cc: deferred condition code
+ * @fmt: format
+ * @x: IRB-format control
+ * @q: interrogate-complete
+ * @ectl: extended control
+ * @pno: path not operational
+ * @fctl: function control
+ * @actl: activity control
+ * @stctl: status control
+ * @tcw: TCW address
+ * @dstat: device status
+ * @cstat: subchannel status
+ * @fcxs: FCX status
+ * @schxs: subchannel-extended status
+ */
+struct tm_scsw {
+	u32 key:4;
+	u32 :1;
+	u32 eswf:1;
+	u32 cc:2;
+	u32 fmt:3;
+	u32 x:1;
+	u32 q:1;
+	u32 :1;
+	u32 ectl:1;
+	u32 pno:1;
+	u32 :1;
+	u32 fctl:3;
+	u32 actl:7;
+	u32 stctl:5;
+	u32 tcw;
+	u32 dstat:8;
+	u32 cstat:8;
+	u32 fcxs:8;
+	u32 schxs:8;
+} __attribute__ ((packed));
+
+/**
+ * union scsw - subchannel status word
+ * @cmd: command-mode SCSW
+ * @tm: transport-mode SCSW
+ */
+union scsw {
+	struct cmd_scsw cmd;
+	struct tm_scsw tm;
+} __attribute__ ((packed));
+
+#define SCSW_FCTL_CLEAR_FUNC	 0x1
+#define SCSW_FCTL_HALT_FUNC	 0x2
+#define SCSW_FCTL_START_FUNC	 0x4
+
+#define SCSW_ACTL_SUSPENDED	 0x1
+#define SCSW_ACTL_DEVACT	 0x2
+#define SCSW_ACTL_SCHACT	 0x4
+#define SCSW_ACTL_CLEAR_PEND	 0x8
+#define SCSW_ACTL_HALT_PEND	 0x10
+#define SCSW_ACTL_START_PEND	 0x20
+#define SCSW_ACTL_RESUME_PEND	 0x40
+
+#define SCSW_STCTL_STATUS_PEND	 0x1
+#define SCSW_STCTL_SEC_STATUS	 0x2
+#define SCSW_STCTL_PRIM_STATUS	 0x4
+#define SCSW_STCTL_INTER_STATUS	 0x8
+#define SCSW_STCTL_ALERT_STATUS	 0x10
+
+#define DEV_STAT_ATTENTION	 0x80
+#define DEV_STAT_STAT_MOD	 0x40
+#define DEV_STAT_CU_END		 0x20
+#define DEV_STAT_BUSY		 0x10
+#define DEV_STAT_CHN_END	 0x08
+#define DEV_STAT_DEV_END	 0x04
+#define DEV_STAT_UNIT_CHECK	 0x02
+#define DEV_STAT_UNIT_EXCEP	 0x01
+
+#define SCHN_STAT_PCI		 0x80
+#define SCHN_STAT_INCORR_LEN	 0x40
+#define SCHN_STAT_PROG_CHECK	 0x20
+#define SCHN_STAT_PROT_CHECK	 0x10
+#define SCHN_STAT_CHN_DATA_CHK	 0x08
+#define SCHN_STAT_CHN_CTRL_CHK	 0x04
+#define SCHN_STAT_INTF_CTRL_CHK	 0x02
+#define SCHN_STAT_CHAIN_CHECK	 0x01
+
+/*
+ * architectured values for first sense byte
+ */
+#define SNS0_CMD_REJECT		0x80
+#define SNS_CMD_REJECT		SNS0_CMD_REJEC
+#define SNS0_INTERVENTION_REQ	0x40
+#define SNS0_BUS_OUT_CHECK	0x20
+#define SNS0_EQUIPMENT_CHECK	0x10
+#define SNS0_DATA_CHECK		0x08
+#define SNS0_OVERRUN		0x04
+#define SNS0_INCOMPL_DOMAIN	0x01
+
+/*
+ * architectured values for second sense byte
+ */
+#define SNS1_PERM_ERR		0x80
+#define SNS1_INV_TRACK_FORMAT	0x40
+#define SNS1_EOC		0x20
+#define SNS1_MESSAGE_TO_OPER	0x10
+#define SNS1_NO_REC_FOUND	0x08
+#define SNS1_FILE_PROTECTED	0x04
+#define SNS1_WRITE_INHIBITED	0x02
+#define SNS1_INPRECISE_END	0x01
+
+/*
+ * architectured values for third sense byte
+ */
+#define SNS2_REQ_INH_WRITE	0x80
+#define SNS2_CORRECTABLE	0x40
+#define SNS2_FIRST_LOG_ERR	0x20
+#define SNS2_ENV_DATA_PRESENT	0x10
+#define SNS2_INPRECISE_END	0x04
 
 /**
  * scsw_is_tm - check for transport mode scsw
@@ -18,11 +185,10 @@
  * Return non-zero if the specified scsw is a transport mode scsw, zero
  * otherwise.
  */
-int scsw_is_tm(union scsw *scsw)
+static inline int scsw_is_tm(union scsw *scsw)
 {
 	return css_general_characteristics.fcx && (scsw->tm.x == 1);
 }
-EXPORT_SYMBOL(scsw_is_tm);
 
 /**
  * scsw_key - return scsw key field
@@ -31,14 +197,13 @@ EXPORT_SYMBOL(scsw_is_tm);
  * Return the value of the key field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_key(union scsw *scsw)
+static inline u32 scsw_key(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.key;
 	else
 		return scsw->cmd.key;
 }
-EXPORT_SYMBOL(scsw_key);
 
 /**
  * scsw_eswf - return scsw eswf field
@@ -47,14 +212,13 @@ EXPORT_SYMBOL(scsw_key);
  * Return the value of the eswf field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_eswf(union scsw *scsw)
+static inline u32 scsw_eswf(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.eswf;
 	else
 		return scsw->cmd.eswf;
 }
-EXPORT_SYMBOL(scsw_eswf);
 
 /**
  * scsw_cc - return scsw cc field
@@ -63,14 +227,13 @@ EXPORT_SYMBOL(scsw_eswf);
  * Return the value of the cc field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_cc(union scsw *scsw)
+static inline u32 scsw_cc(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.cc;
 	else
 		return scsw->cmd.cc;
 }
-EXPORT_SYMBOL(scsw_cc);
 
 /**
  * scsw_ectl - return scsw ectl field
@@ -79,14 +242,13 @@ EXPORT_SYMBOL(scsw_cc);
  * Return the value of the ectl field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_ectl(union scsw *scsw)
+static inline u32 scsw_ectl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.ectl;
 	else
 		return scsw->cmd.ectl;
 }
-EXPORT_SYMBOL(scsw_ectl);
 
 /**
  * scsw_pno - return scsw pno field
@@ -95,14 +257,13 @@ EXPORT_SYMBOL(scsw_ectl);
  * Return the value of the pno field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_pno(union scsw *scsw)
+static inline u32 scsw_pno(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.pno;
 	else
 		return scsw->cmd.pno;
 }
-EXPORT_SYMBOL(scsw_pno);
 
 /**
  * scsw_fctl - return scsw fctl field
@@ -111,14 +272,13 @@ EXPORT_SYMBOL(scsw_pno);
  * Return the value of the fctl field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_fctl(union scsw *scsw)
+static inline u32 scsw_fctl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.fctl;
 	else
 		return scsw->cmd.fctl;
 }
-EXPORT_SYMBOL(scsw_fctl);
 
 /**
  * scsw_actl - return scsw actl field
@@ -127,14 +287,13 @@ EXPORT_SYMBOL(scsw_fctl);
  * Return the value of the actl field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_actl(union scsw *scsw)
+static inline u32 scsw_actl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.actl;
 	else
 		return scsw->cmd.actl;
 }
-EXPORT_SYMBOL(scsw_actl);
 
 /**
  * scsw_stctl - return scsw stctl field
@@ -143,14 +302,13 @@ EXPORT_SYMBOL(scsw_actl);
  * Return the value of the stctl field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_stctl(union scsw *scsw)
+static inline u32 scsw_stctl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.stctl;
 	else
 		return scsw->cmd.stctl;
 }
-EXPORT_SYMBOL(scsw_stctl);
 
 /**
  * scsw_dstat - return scsw dstat field
@@ -159,14 +317,13 @@ EXPORT_SYMBOL(scsw_stctl);
  * Return the value of the dstat field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_dstat(union scsw *scsw)
+static inline u32 scsw_dstat(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.dstat;
 	else
 		return scsw->cmd.dstat;
 }
-EXPORT_SYMBOL(scsw_dstat);
 
 /**
  * scsw_cstat - return scsw cstat field
@@ -175,14 +332,13 @@ EXPORT_SYMBOL(scsw_dstat);
  * Return the value of the cstat field of the specified scsw, regardless of
  * whether it is a transport mode or command mode scsw.
  */
-u32 scsw_cstat(union scsw *scsw)
+static inline u32 scsw_cstat(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw->tm.cstat;
 	else
 		return scsw->cmd.cstat;
 }
-EXPORT_SYMBOL(scsw_cstat);
 
 /**
  * scsw_cmd_is_valid_key - check key field validity
@@ -191,11 +347,10 @@ EXPORT_SYMBOL(scsw_cstat);
  * Return non-zero if the key field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_key(union scsw *scsw)
+static inline int scsw_cmd_is_valid_key(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_key);
 
 /**
  * scsw_cmd_is_valid_sctl - check fctl field validity
@@ -204,11 +359,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_key);
  * Return non-zero if the fctl field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_sctl(union scsw *scsw)
+static inline int scsw_cmd_is_valid_sctl(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_sctl);
 
 /**
  * scsw_cmd_is_valid_eswf - check eswf field validity
@@ -217,11 +371,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_sctl);
  * Return non-zero if the eswf field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_eswf(union scsw *scsw)
+static inline int scsw_cmd_is_valid_eswf(union scsw *scsw)
 {
 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_eswf);
 
 /**
  * scsw_cmd_is_valid_cc - check cc field validity
@@ -230,12 +383,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_eswf);
  * Return non-zero if the cc field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_cc(union scsw *scsw)
+static inline int scsw_cmd_is_valid_cc(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
 	       (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_cc);
 
 /**
  * scsw_cmd_is_valid_fmt - check fmt field validity
@@ -244,11 +396,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_cc);
  * Return non-zero if the fmt field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_fmt(union scsw *scsw)
+static inline int scsw_cmd_is_valid_fmt(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_fmt);
 
 /**
  * scsw_cmd_is_valid_pfch - check pfch field validity
@@ -257,11 +408,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_fmt);
  * Return non-zero if the pfch field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_pfch(union scsw *scsw)
+static inline int scsw_cmd_is_valid_pfch(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_pfch);
 
 /**
  * scsw_cmd_is_valid_isic - check isic field validity
@@ -270,11 +420,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_pfch);
  * Return non-zero if the isic field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_isic(union scsw *scsw)
+static inline int scsw_cmd_is_valid_isic(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_isic);
 
 /**
  * scsw_cmd_is_valid_alcc - check alcc field validity
@@ -283,11 +432,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_isic);
  * Return non-zero if the alcc field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_alcc(union scsw *scsw)
+static inline int scsw_cmd_is_valid_alcc(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_alcc);
 
 /**
  * scsw_cmd_is_valid_ssi - check ssi field validity
@@ -296,11 +444,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_alcc);
  * Return non-zero if the ssi field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_ssi(union scsw *scsw)
+static inline int scsw_cmd_is_valid_ssi(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_ssi);
 
 /**
  * scsw_cmd_is_valid_zcc - check zcc field validity
@@ -309,12 +456,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_ssi);
  * Return non-zero if the zcc field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_zcc(union scsw *scsw)
+static inline int scsw_cmd_is_valid_zcc(union scsw *scsw)
 {
 	return (scsw->cmd.fctl & SCSW_FCTL_START_FUNC) &&
 	       (scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_zcc);
 
 /**
  * scsw_cmd_is_valid_ectl - check ectl field validity
@@ -323,13 +469,12 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_zcc);
  * Return non-zero if the ectl field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_ectl(union scsw *scsw)
+static inline int scsw_cmd_is_valid_ectl(union scsw *scsw)
 {
 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       !(scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
 	       (scsw->cmd.stctl & SCSW_STCTL_ALERT_STATUS);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_ectl);
 
 /**
  * scsw_cmd_is_valid_pno - check pno field validity
@@ -338,7 +483,7 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_ectl);
  * Return non-zero if the pno field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_pno(union scsw *scsw)
+static inline int scsw_cmd_is_valid_pno(union scsw *scsw)
 {
 	return (scsw->cmd.fctl != 0) &&
 	       (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
@@ -346,7 +491,6 @@ int scsw_cmd_is_valid_pno(union scsw *scsw)
 		 ((scsw->cmd.stctl & SCSW_STCTL_INTER_STATUS) &&
 		  (scsw->cmd.actl & SCSW_ACTL_SUSPENDED)));
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_pno);
 
 /**
  * scsw_cmd_is_valid_fctl - check fctl field validity
@@ -355,12 +499,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_pno);
  * Return non-zero if the fctl field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_fctl(union scsw *scsw)
+static inline int scsw_cmd_is_valid_fctl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_fctl);
 
 /**
  * scsw_cmd_is_valid_actl - check actl field validity
@@ -369,12 +512,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_fctl);
  * Return non-zero if the actl field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_actl(union scsw *scsw)
+static inline int scsw_cmd_is_valid_actl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_actl);
 
 /**
  * scsw_cmd_is_valid_stctl - check stctl field validity
@@ -383,12 +525,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_actl);
  * Return non-zero if the stctl field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_stctl(union scsw *scsw)
+static inline int scsw_cmd_is_valid_stctl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_stctl);
 
 /**
  * scsw_cmd_is_valid_dstat - check dstat field validity
@@ -397,12 +538,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_stctl);
  * Return non-zero if the dstat field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_dstat(union scsw *scsw)
+static inline int scsw_cmd_is_valid_dstat(union scsw *scsw)
 {
 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       (scsw->cmd.cc != 3);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_dstat);
 
 /**
  * scsw_cmd_is_valid_cstat - check cstat field validity
@@ -411,12 +551,11 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_dstat);
  * Return non-zero if the cstat field of the specified command mode scsw is
  * valid, zero otherwise.
  */
-int scsw_cmd_is_valid_cstat(union scsw *scsw)
+static inline int scsw_cmd_is_valid_cstat(union scsw *scsw)
 {
 	return (scsw->cmd.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       (scsw->cmd.cc != 3);
 }
-EXPORT_SYMBOL(scsw_cmd_is_valid_cstat);
 
 /**
  * scsw_tm_is_valid_key - check key field validity
@@ -425,11 +564,10 @@ EXPORT_SYMBOL(scsw_cmd_is_valid_cstat);
  * Return non-zero if the key field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_key(union scsw *scsw)
+static inline int scsw_tm_is_valid_key(union scsw *scsw)
 {
 	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_key);
 
 /**
  * scsw_tm_is_valid_eswf - check eswf field validity
@@ -438,11 +576,10 @@ EXPORT_SYMBOL(scsw_tm_is_valid_key);
  * Return non-zero if the eswf field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_eswf(union scsw *scsw)
+static inline int scsw_tm_is_valid_eswf(union scsw *scsw)
 {
 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_eswf);
 
 /**
  * scsw_tm_is_valid_cc - check cc field validity
@@ -451,12 +588,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_eswf);
  * Return non-zero if the cc field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_cc(union scsw *scsw)
+static inline int scsw_tm_is_valid_cc(union scsw *scsw)
 {
 	return (scsw->tm.fctl & SCSW_FCTL_START_FUNC) &&
 	       (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_cc);
 
 /**
  * scsw_tm_is_valid_fmt - check fmt field validity
@@ -465,11 +601,10 @@ EXPORT_SYMBOL(scsw_tm_is_valid_cc);
  * Return non-zero if the fmt field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_fmt(union scsw *scsw)
+static inline int scsw_tm_is_valid_fmt(union scsw *scsw)
 {
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_fmt);
 
 /**
  * scsw_tm_is_valid_x - check x field validity
@@ -478,11 +613,10 @@ EXPORT_SYMBOL(scsw_tm_is_valid_fmt);
  * Return non-zero if the x field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_x(union scsw *scsw)
+static inline int scsw_tm_is_valid_x(union scsw *scsw)
 {
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_x);
 
 /**
  * scsw_tm_is_valid_q - check q field validity
@@ -491,11 +625,10 @@ EXPORT_SYMBOL(scsw_tm_is_valid_x);
  * Return non-zero if the q field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_q(union scsw *scsw)
+static inline int scsw_tm_is_valid_q(union scsw *scsw)
 {
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_q);
 
 /**
  * scsw_tm_is_valid_ectl - check ectl field validity
@@ -504,13 +637,12 @@ EXPORT_SYMBOL(scsw_tm_is_valid_q);
  * Return non-zero if the ectl field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_ectl(union scsw *scsw)
+static inline int scsw_tm_is_valid_ectl(union scsw *scsw)
 {
 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       !(scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
 	       (scsw->tm.stctl & SCSW_STCTL_ALERT_STATUS);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_ectl);
 
 /**
  * scsw_tm_is_valid_pno - check pno field validity
@@ -519,7 +651,7 @@ EXPORT_SYMBOL(scsw_tm_is_valid_ectl);
  * Return non-zero if the pno field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_pno(union scsw *scsw)
+static inline int scsw_tm_is_valid_pno(union scsw *scsw)
 {
 	return (scsw->tm.fctl != 0) &&
 	       (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
@@ -527,7 +659,6 @@ int scsw_tm_is_valid_pno(union scsw *scsw)
 		 ((scsw->tm.stctl & SCSW_STCTL_INTER_STATUS) &&
 		  (scsw->tm.actl & SCSW_ACTL_SUSPENDED)));
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_pno);
 
 /**
  * scsw_tm_is_valid_fctl - check fctl field validity
@@ -536,12 +667,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_pno);
  * Return non-zero if the fctl field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_fctl(union scsw *scsw)
+static inline int scsw_tm_is_valid_fctl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_fctl);
 
 /**
  * scsw_tm_is_valid_actl - check actl field validity
@@ -550,12 +680,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_fctl);
  * Return non-zero if the actl field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_actl(union scsw *scsw)
+static inline int scsw_tm_is_valid_actl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_actl);
 
 /**
  * scsw_tm_is_valid_stctl - check stctl field validity
@@ -564,12 +693,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_actl);
  * Return non-zero if the stctl field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_stctl(union scsw *scsw)
+static inline int scsw_tm_is_valid_stctl(union scsw *scsw)
 {
 	/* Only valid if pmcw.dnv == 1*/
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_stctl);
 
 /**
  * scsw_tm_is_valid_dstat - check dstat field validity
@@ -578,12 +706,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_stctl);
  * Return non-zero if the dstat field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_dstat(union scsw *scsw)
+static inline int scsw_tm_is_valid_dstat(union scsw *scsw)
 {
 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       (scsw->tm.cc != 3);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_dstat);
 
 /**
  * scsw_tm_is_valid_cstat - check cstat field validity
@@ -592,12 +719,11 @@ EXPORT_SYMBOL(scsw_tm_is_valid_dstat);
  * Return non-zero if the cstat field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_cstat(union scsw *scsw)
+static inline int scsw_tm_is_valid_cstat(union scsw *scsw)
 {
 	return (scsw->tm.stctl & SCSW_STCTL_STATUS_PEND) &&
 	       (scsw->tm.cc != 3);
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_cstat);
 
 /**
  * scsw_tm_is_valid_fcxs - check fcxs field validity
@@ -606,11 +732,10 @@ EXPORT_SYMBOL(scsw_tm_is_valid_cstat);
  * Return non-zero if the fcxs field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_fcxs(union scsw *scsw)
+static inline int scsw_tm_is_valid_fcxs(union scsw *scsw)
 {
 	return 1;
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_fcxs);
 
 /**
  * scsw_tm_is_valid_schxs - check schxs field validity
@@ -619,14 +744,13 @@ EXPORT_SYMBOL(scsw_tm_is_valid_fcxs);
  * Return non-zero if the schxs field of the specified transport mode scsw is
  * valid, zero otherwise.
  */
-int scsw_tm_is_valid_schxs(union scsw *scsw)
+static inline int scsw_tm_is_valid_schxs(union scsw *scsw)
 {
 	return (scsw->tm.cstat & (SCHN_STAT_PROG_CHECK |
 				  SCHN_STAT_INTF_CTRL_CHK |
 				  SCHN_STAT_PROT_CHECK |
 				  SCHN_STAT_CHN_DATA_CHK));
 }
-EXPORT_SYMBOL(scsw_tm_is_valid_schxs);
 
 /**
  * scsw_is_valid_actl - check actl field validity
@@ -636,14 +760,13 @@ EXPORT_SYMBOL(scsw_tm_is_valid_schxs);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_actl(union scsw *scsw)
+static inline int scsw_is_valid_actl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_actl(scsw);
 	else
 		return scsw_cmd_is_valid_actl(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_actl);
 
 /**
  * scsw_is_valid_cc - check cc field validity
@@ -653,14 +776,13 @@ EXPORT_SYMBOL(scsw_is_valid_actl);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_cc(union scsw *scsw)
+static inline int scsw_is_valid_cc(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_cc(scsw);
 	else
 		return scsw_cmd_is_valid_cc(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_cc);
 
 /**
  * scsw_is_valid_cstat - check cstat field validity
@@ -670,14 +792,13 @@ EXPORT_SYMBOL(scsw_is_valid_cc);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_cstat(union scsw *scsw)
+static inline int scsw_is_valid_cstat(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_cstat(scsw);
 	else
 		return scsw_cmd_is_valid_cstat(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_cstat);
 
 /**
  * scsw_is_valid_dstat - check dstat field validity
@@ -687,14 +808,13 @@ EXPORT_SYMBOL(scsw_is_valid_cstat);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_dstat(union scsw *scsw)
+static inline int scsw_is_valid_dstat(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_dstat(scsw);
 	else
 		return scsw_cmd_is_valid_dstat(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_dstat);
 
 /**
  * scsw_is_valid_ectl - check ectl field validity
@@ -704,14 +824,13 @@ EXPORT_SYMBOL(scsw_is_valid_dstat);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_ectl(union scsw *scsw)
+static inline int scsw_is_valid_ectl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_ectl(scsw);
 	else
 		return scsw_cmd_is_valid_ectl(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_ectl);
 
 /**
  * scsw_is_valid_eswf - check eswf field validity
@@ -721,14 +840,13 @@ EXPORT_SYMBOL(scsw_is_valid_ectl);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_eswf(union scsw *scsw)
+static inline int scsw_is_valid_eswf(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_eswf(scsw);
 	else
 		return scsw_cmd_is_valid_eswf(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_eswf);
 
 /**
  * scsw_is_valid_fctl - check fctl field validity
@@ -738,14 +856,13 @@ EXPORT_SYMBOL(scsw_is_valid_eswf);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_fctl(union scsw *scsw)
+static inline int scsw_is_valid_fctl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_fctl(scsw);
 	else
 		return scsw_cmd_is_valid_fctl(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_fctl);
 
 /**
  * scsw_is_valid_key - check key field validity
@@ -755,14 +872,13 @@ EXPORT_SYMBOL(scsw_is_valid_fctl);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_key(union scsw *scsw)
+static inline int scsw_is_valid_key(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_key(scsw);
 	else
 		return scsw_cmd_is_valid_key(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_key);
 
 /**
  * scsw_is_valid_pno - check pno field validity
@@ -772,14 +888,13 @@ EXPORT_SYMBOL(scsw_is_valid_key);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_pno(union scsw *scsw)
+static inline int scsw_is_valid_pno(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_pno(scsw);
 	else
 		return scsw_cmd_is_valid_pno(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_pno);
 
 /**
  * scsw_is_valid_stctl - check stctl field validity
@@ -789,14 +904,13 @@ EXPORT_SYMBOL(scsw_is_valid_pno);
  * regardless of whether it is a transport mode or command mode scsw.
  * Return zero if the field does not contain a valid value.
  */
-int scsw_is_valid_stctl(union scsw *scsw)
+static inline int scsw_is_valid_stctl(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_valid_stctl(scsw);
 	else
 		return scsw_cmd_is_valid_stctl(scsw);
 }
-EXPORT_SYMBOL(scsw_is_valid_stctl);
 
 /**
  * scsw_cmd_is_solicited - check for solicited scsw
@@ -805,12 +919,11 @@ EXPORT_SYMBOL(scsw_is_valid_stctl);
  * Return non-zero if the command mode scsw indicates that the associated
  * status condition is solicited, zero if it is unsolicited.
  */
-int scsw_cmd_is_solicited(union scsw *scsw)
+static inline int scsw_cmd_is_solicited(union scsw *scsw)
 {
 	return (scsw->cmd.cc != 0) || (scsw->cmd.stctl !=
 		(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
 }
-EXPORT_SYMBOL(scsw_cmd_is_solicited);
 
 /**
  * scsw_tm_is_solicited - check for solicited scsw
@@ -819,12 +932,11 @@ EXPORT_SYMBOL(scsw_cmd_is_solicited);
  * Return non-zero if the transport mode scsw indicates that the associated
  * status condition is solicited, zero if it is unsolicited.
  */
-int scsw_tm_is_solicited(union scsw *scsw)
+static inline int scsw_tm_is_solicited(union scsw *scsw)
 {
 	return (scsw->tm.cc != 0) || (scsw->tm.stctl !=
 		(SCSW_STCTL_STATUS_PEND | SCSW_STCTL_ALERT_STATUS));
 }
-EXPORT_SYMBOL(scsw_tm_is_solicited);
 
 /**
  * scsw_is_solicited - check for solicited scsw
@@ -833,11 +945,12 @@ EXPORT_SYMBOL(scsw_tm_is_solicited);
  * Return non-zero if the transport or command mode scsw indicates that the
  * associated status condition is solicited, zero if it is unsolicited.
  */
-int scsw_is_solicited(union scsw *scsw)
+static inline int scsw_is_solicited(union scsw *scsw)
 {
 	if (scsw_is_tm(scsw))
 		return scsw_tm_is_solicited(scsw);
 	else
 		return scsw_cmd_is_solicited(scsw);
 }
-EXPORT_SYMBOL(scsw_is_solicited);
+
+#endif /* _ASM_S390_SCSW_H_ */

arch/s390/include/asm/setup.h

@@ -8,7 +8,7 @@
 #ifndef _ASM_S390_SETUP_H
 #define _ASM_S390_SETUP_H
 
-#define COMMAND_LINE_SIZE	1024
+#define COMMAND_LINE_SIZE	4096
 
 #define ARCH_COMMAND_LINE_SIZE	896
 

arch/s390/include/asm/smp.h

@@ -51,32 +51,7 @@ extern void machine_power_off_smp(void);
 #define PROC_CHANGE_PENALTY	20		/* Schedule penalty */
 
 #define raw_smp_processor_id()	(S390_lowcore.cpu_nr)
-
-/*
- * returns 1 if cpu is in stopped/check stopped state or not operational
- * returns 0 otherwise
- */
-static inline int
-smp_cpu_not_running(int cpu)
-{
-	__u32 status;
-
-	switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
-	case sigp_order_code_accepted:
-	case sigp_status_stored:
-		/* Check for stopped and check stop state */
-		if (status & 0x50)
-			return 1;
-		break;
-	case sigp_not_operational:
-		return 1;
-	default:
-		break;
-	}
-	return 0;
-}
-
-#define cpu_logical_map(cpu) (cpu)
+#define cpu_logical_map(cpu)	(cpu)
 
 extern int __cpu_disable (void);
 extern void __cpu_die (unsigned int cpu);
@@ -91,11 +66,6 @@ extern void arch_send_call_function_ipi(cpumask_t mask);
 
 #endif
 
-#ifndef CONFIG_SMP
-#define hard_smp_processor_id()		0
-#define smp_cpu_not_running(cpu)	1
-#endif
-
 #ifdef CONFIG_HOTPLUG_CPU
 extern int smp_rescan_cpus(void);
 #else

arch/s390/include/asm/system.h

@@ -109,11 +109,7 @@ extern void pfault_fini(void);
 #define pfault_fini()		do { } while (0)
 #endif /* CONFIG_PFAULT */
 
-#ifdef CONFIG_PAGE_STATES
 extern void cmma_init(void);
-#else
-static inline void cmma_init(void) { }
-#endif
 
 #define finish_arch_switch(prev) do {					     \
 	set_fs(current->thread.mm_segment);				     \

arch/s390/include/asm/timex.h

@@ -90,4 +90,18 @@ unsigned long long monotonic_clock(void);
 
 extern u64 sched_clock_base_cc;
 
+/**
+ * get_clock_monotonic - returns current time in clock rate units
+ *
+ * The caller must ensure that preemption is disabled.
+ * The clock and sched_clock_base get changed via stop_machine.
+ * Therefore preemption must be disabled when calling this
+ * function, otherwise the returned value is not guaranteed to
+ * be monotonic.
+ */
+static inline unsigned long long get_clock_monotonic(void)
+{
+	return get_clock_xt() - sched_clock_base_cc;
+}
+
 #endif

arch/s390/kernel/Makefile

@@ -32,7 +32,7 @@ extra-y				+= head.o init_task.o vmlinux.lds
 
 obj-$(CONFIG_MODULES)		+= s390_ksyms.o module.o
 obj-$(CONFIG_SMP)		+= smp.o topology.o
-
+obj-$(CONFIG_HIBERNATION)	+= suspend.o swsusp_asm64.o
 obj-$(CONFIG_AUDIT)		+= audit.o
 compat-obj-$(CONFIG_AUDIT)	+= compat_audit.o
 obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o \
@@ -41,7 +41,7 @@ obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o \
 
 obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_KPROBES)		+= kprobes.o
-obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o
+obj-$(CONFIG_FUNCTION_TRACER)	+= $(if $(CONFIG_64BIT),mcount64.o,mcount.o)
 obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
 

arch/s390/kernel/early.c

@@ -6,6 +6,9 @@
  *		 Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "setup"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/compiler.h>
 #include <linux/init.h>
 #include <linux/errno.h>
@@ -16,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/pfn.h>
 #include <linux/uaccess.h>
+#include <linux/kernel.h>
 #include <asm/ebcdic.h>
 #include <asm/ipl.h>
 #include <asm/lowcore.h>
@@ -35,8 +39,6 @@
 
 char kernel_nss_name[NSS_NAME_SIZE + 1];
 
-static unsigned long machine_flags;
-
 static void __init setup_boot_command_line(void);
 
 /*
@@ -81,6 +83,8 @@ asm(
 	"	br	14\n"
 	"	.size	savesys_ipl_nss, .-savesys_ipl_nss\n");
 
+static __initdata char upper_command_line[COMMAND_LINE_SIZE];
+
 static noinline __init void create_kernel_nss(void)
 {
 	unsigned int i, stext_pfn, eshared_pfn, end_pfn, min_size;
@@ -90,7 +94,6 @@ static noinline __init void create_kernel_nss(void)
 	int response;
 	size_t len;
 	char *savesys_ptr;
-	char upper_command_line[COMMAND_LINE_SIZE];
 	char defsys_cmd[DEFSYS_CMD_SIZE];
 	char savesys_cmd[SAVESYS_CMD_SIZE];
 
@@ -141,6 +144,8 @@ static noinline __init void create_kernel_nss(void)
 	__cpcmd(defsys_cmd, NULL, 0, &response);
 
 	if (response != 0) {
+		pr_err("Defining the Linux kernel NSS failed with rc=%d\n",
+			response);
 		kernel_nss_name[0] = '\0';
 		return;
 	}
@@ -153,8 +158,11 @@ static noinline __init void create_kernel_nss(void)
 	 *	       max SAVESYS_CMD_SIZE
 	 * On error: response contains the numeric portion of cp error message.
 	 *	     for SAVESYS it will be >= 263
+	 *	     for missing privilege class, it will be 1
 	 */
-	if (response > SAVESYS_CMD_SIZE) {
+	if (response > SAVESYS_CMD_SIZE || response == 1) {
+		pr_err("Saving the Linux kernel NSS failed with rc=%d\n",
+			response);
 		kernel_nss_name[0] = '\0';
 		return;
 	}
@@ -205,12 +213,9 @@ static noinline __init void detect_machine_type(void)
 
 	/* Running under KVM? If not we assume z/VM */
 	if (!memcmp(vmms.vm[0].cpi, "\xd2\xe5\xd4", 3))
-		machine_flags |= MACHINE_FLAG_KVM;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_KVM;
 	else
-		machine_flags |= MACHINE_FLAG_VM;
-
-	/* Store machine flags for setting up lowcore early */
-	S390_lowcore.machine_flags = machine_flags;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_VM;
 }
 
 static __init void early_pgm_check_handler(void)
@@ -245,7 +250,7 @@ static noinline __init void setup_hpage(void)
 	facilities = stfl();
 	if (!(facilities & (1UL << 23)) || !(facilities & (1UL << 29)))
 		return;
-	machine_flags |= MACHINE_FLAG_HPAGE;
+	S390_lowcore.machine_flags |= MACHINE_FLAG_HPAGE;
 	__ctl_set_bit(0, 23);
 #endif
 }
@@ -263,7 +268,7 @@ static __init void detect_mvpg(void)
 		EX_TABLE(0b,1b)
 		: "=d" (rc) : "0" (-EOPNOTSUPP), "a" (0) : "memory", "cc", "0");
 	if (!rc)
-		machine_flags |= MACHINE_FLAG_MVPG;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_MVPG;
 #endif
 }
 
@@ -279,7 +284,7 @@ static __init void detect_ieee(void)
 		EX_TABLE(0b,1b)
 		: "=d" (rc), "=d" (tmp): "0" (-EOPNOTSUPP) : "cc");
 	if (!rc)
-		machine_flags |= MACHINE_FLAG_IEEE;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_IEEE;
 #endif
 }
 
@@ -298,7 +303,7 @@ static __init void detect_csp(void)
 		EX_TABLE(0b,1b)
 		: "=d" (rc) : "0" (-EOPNOTSUPP) : "cc", "0", "1", "2");
 	if (!rc)
-		machine_flags |= MACHINE_FLAG_CSP;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_CSP;
 #endif
 }
 
@@ -315,7 +320,7 @@ static __init void detect_diag9c(void)
 		EX_TABLE(0b,1b)
 		: "=d" (rc) : "0" (-EOPNOTSUPP), "d" (cpu_address) : "cc");
 	if (!rc)
-		machine_flags |= MACHINE_FLAG_DIAG9C;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_DIAG9C;
 }
 
 static __init void detect_diag44(void)
@@ -330,7 +335,7 @@ static __init void detect_diag44(void)
 		EX_TABLE(0b,1b)
 		: "=d" (rc) : "0" (-EOPNOTSUPP) : "cc");
 	if (!rc)
-		machine_flags |= MACHINE_FLAG_DIAG44;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_DIAG44;
 #endif
 }
 
@@ -341,11 +346,11 @@ static __init void detect_machine_facilities(void)
 
 	facilities = stfl();
 	if (facilities & (1 << 28))
-		machine_flags |= MACHINE_FLAG_IDTE;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
 	if (facilities & (1 << 23))
-		machine_flags |= MACHINE_FLAG_PFMF;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF;
 	if (facilities & (1 << 4))
-		machine_flags |= MACHINE_FLAG_MVCOS;
+		S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS;
 #endif
 }
 
@@ -367,21 +372,35 @@ static __init void rescue_initrd(void)
 }
 
 /* Set up boot command line */
-static void __init setup_boot_command_line(void)
+static void __init append_to_cmdline(size_t (*ipl_data)(char *, size_t))
 {
-	char *parm = NULL;
+	char *parm, *delim;
+	size_t rc, len;
+
+	len = strlen(boot_command_line);
+
+	delim = boot_command_line + len;	/* '\0' character position */
+	parm  = boot_command_line + len + 1;	/* append right after '\0' */
 
+	rc = ipl_data(parm, COMMAND_LINE_SIZE - len - 1);
+	if (rc) {
+		if (*parm == '=')
+			memmove(boot_command_line, parm + 1, rc);
+		else
+			*delim = ' ';		/* replace '\0' with space */
+	}
+}
+
+static void __init setup_boot_command_line(void)
+{
 	/* copy arch command line */
 	strlcpy(boot_command_line, COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
 
 	/* append IPL PARM data to the boot command line */
-	if (MACHINE_IS_VM) {
-		parm = boot_command_line + strlen(boot_command_line);
-		*parm++ = ' ';
-		get_ipl_vmparm(parm);
-		if (parm[0] == '=')
-			memmove(boot_command_line, parm + 1, strlen(parm));
-	}
+	if (MACHINE_IS_VM)
+		append_to_cmdline(append_ipl_vmparm);
+
+	append_to_cmdline(append_ipl_scpdata);
 }
 
 
@@ -413,7 +432,6 @@ void __init startup_init(void)
 	setup_hpage();
 	sclp_facilities_detect();
 	detect_memory_layout(memory_chunk);
-	S390_lowcore.machine_flags = machine_flags;
 #ifdef CONFIG_DYNAMIC_FTRACE
 	S390_lowcore.ftrace_func = (unsigned long)ftrace_caller;
 #endif

arch/s390/kernel/entry.S

@@ -278,7 +278,8 @@ sysc_return:
 	bnz	BASED(sysc_work)  # there is work to do (signals etc.)
 sysc_restore:
 #ifdef CONFIG_TRACE_IRQFLAGS
-	la	%r1,BASED(sysc_restore_trace_psw)
+	la	%r1,BASED(sysc_restore_trace_psw_addr)
+	l	%r1,0(%r1)
 	lpsw	0(%r1)
 sysc_restore_trace:
 	TRACE_IRQS_CHECK
@@ -289,10 +290,15 @@ sysc_leave:
 sysc_done:
 
 #ifdef CONFIG_TRACE_IRQFLAGS
+sysc_restore_trace_psw_addr:
+	.long sysc_restore_trace_psw
+
+	.section .data,"aw",@progbits
 	.align	8
 	.globl	sysc_restore_trace_psw
 sysc_restore_trace_psw:
 	.long	0, sysc_restore_trace + 0x80000000
+	.previous
 #endif
 
 #
@@ -606,7 +612,8 @@ io_return:
 	bnz	BASED(io_work)		# there is work to do (signals etc.)
 io_restore:
 #ifdef CONFIG_TRACE_IRQFLAGS
-	la	%r1,BASED(io_restore_trace_psw)
+	la	%r1,BASED(io_restore_trace_psw_addr)
+	l	%r1,0(%r1)
 	lpsw	0(%r1)
 io_restore_trace:
 	TRACE_IRQS_CHECK
@@ -617,10 +624,15 @@ io_leave:
 io_done:
 
 #ifdef CONFIG_TRACE_IRQFLAGS
+io_restore_trace_psw_addr:
+	.long io_restore_trace_psw
+
+	.section .data,"aw",@progbits
 	.align	8
 	.globl	io_restore_trace_psw
 io_restore_trace_psw:
 	.long	0, io_restore_trace + 0x80000000
+	.previous
 #endif
 
 #

arch/s390/kernel/entry64.S

@@ -284,10 +284,12 @@ sysc_leave:
 sysc_done:
 
 #ifdef CONFIG_TRACE_IRQFLAGS
+	.section .data,"aw",@progbits
 	.align	8
 	.globl sysc_restore_trace_psw
 sysc_restore_trace_psw:
 	.quad	0, sysc_restore_trace
+	.previous
 #endif
 
 #
@@ -595,10 +597,12 @@ io_leave:
 io_done:
 
 #ifdef CONFIG_TRACE_IRQFLAGS
+	.section .data,"aw",@progbits
 	.align	8
 	.globl io_restore_trace_psw
 io_restore_trace_psw:
 	.quad	0, io_restore_trace
+	.previous
 #endif
 
 #

arch/s390/kernel/head.S

@@ -27,6 +27,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 #include <asm/page.h>
+#include <asm/cpu.h>
 
 #ifdef CONFIG_64BIT
 #define ARCH_OFFSET	4

arch/s390/kernel/head31.S

@@ -24,6 +24,7 @@ startup_continue:
 # Setup stack
 #
 	l	%r15,.Linittu-.LPG1(%r13)
+	st	%r15,__LC_THREAD_INFO	# cache thread info in lowcore
 	mvc	__LC_CURRENT(4),__TI_task(%r15)
 	ahi	%r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union+THREAD_SIZE
 	st	%r15,__LC_KERNEL_STACK	# set end of kernel stack

arch/s390/kernel/head64.S

@@ -62,9 +62,9 @@ startup_continue:
 	clr	%r11,%r12
 	je	5f			# no more space in prefix array
 4:
-	ahi	%r8,1				# next cpu (r8 += 1)
-	cl	%r8,.Llast_cpu-.LPG1(%r13)	# is last possible cpu ?
-	jl	1b				# jump if not last cpu
+	ahi	%r8,1			# next cpu (r8 += 1)
+	chi	%r8,MAX_CPU_ADDRESS	# is last possible cpu ?
+	jle	1b			# jump if not last cpu
 5:
 	lhi	%r1,2			# mode 2 = esame (dump)
 	j	6f
@@ -92,6 +92,7 @@ startup_continue:
 # Setup stack
 #
 	larl	%r15,init_thread_union
+	stg	%r15,__LC_THREAD_INFO	# cache thread info in lowcore
 	lg	%r14,__TI_task(%r15)	# cache current in lowcore
 	stg	%r14,__LC_CURRENT
 	aghi	%r15,1<<(PAGE_SHIFT+THREAD_ORDER) # init_task_union + THREAD_SIZE
@@ -129,8 +130,6 @@ startup_continue:
 #ifdef CONFIG_ZFCPDUMP
 .Lcurrent_cpu:
 	.long 0x0
-.Llast_cpu:
-	.long 0x0000ffff
 .Lpref_arr_ptr:
 	.long zfcpdump_prefix_array
 #endif /* CONFIG_ZFCPDUMP */

arch/s390/kernel/ipl.c

@@ -272,17 +272,18 @@ static ssize_t ipl_type_show(struct kobject *kobj, struct kobj_attribute *attr,
 static struct kobj_attribute sys_ipl_type_attr = __ATTR_RO(ipl_type);
 
 /* VM IPL PARM routines */
-static void reipl_get_ascii_vmparm(char *dest,
+size_t reipl_get_ascii_vmparm(char *dest, size_t size,
 				   const struct ipl_parameter_block *ipb)
 {
 	int i;
-	int len = 0;
+	size_t len;
 	char has_lowercase = 0;
 
+	len = 0;
 	if ((ipb->ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) &&
 	    (ipb->ipl_info.ccw.vm_parm_len > 0)) {
 
-		len = ipb->ipl_info.ccw.vm_parm_len;
+		len = min_t(size_t, size - 1, ipb->ipl_info.ccw.vm_parm_len);
 		memcpy(dest, ipb->ipl_info.ccw.vm_parm, len);
 		/* If at least one character is lowercase, we assume mixed
 		 * case; otherwise we convert everything to lowercase.
@@ -299,14 +300,20 @@ static void reipl_get_ascii_vmparm(char *dest,
 		EBCASC(dest, len);
 	}
 	dest[len] = 0;
+
+	return len;
 }
 
-void get_ipl_vmparm(char *dest)
+size_t append_ipl_vmparm(char *dest, size_t size)
 {
+	size_t rc;
+
+	rc = 0;
 	if (diag308_set_works && (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_CCW))
-		reipl_get_ascii_vmparm(dest, &ipl_block);
+		rc = reipl_get_ascii_vmparm(dest, size, &ipl_block);
 	else
 		dest[0] = 0;
+	return rc;
 }
 
 static ssize_t ipl_vm_parm_show(struct kobject *kobj,
@@ -314,10 +321,65 @@ static ssize_t ipl_vm_parm_show(struct kobject *kobj,
 {
 	char parm[DIAG308_VMPARM_SIZE + 1] = {};
 
-	get_ipl_vmparm(parm);
+	append_ipl_vmparm(parm, sizeof(parm));
 	return sprintf(page, "%s\n", parm);
 }
 
+static size_t scpdata_length(const char* buf, size_t count)
+{
+	while (count) {
+		if (buf[count - 1] != '\0' && buf[count - 1] != ' ')
+			break;
+		count--;
+	}
+	return count;
+}
+
+size_t reipl_append_ascii_scpdata(char *dest, size_t size,
+				  const struct ipl_parameter_block *ipb)
+{
+	size_t count;
+	size_t i;
+	int has_lowercase;
+
+	count = min(size - 1, scpdata_length(ipb->ipl_info.fcp.scp_data,
+					     ipb->ipl_info.fcp.scp_data_len));
+	if (!count)
+		goto out;
+
+	has_lowercase = 0;
+	for (i = 0; i < count; i++) {
+		if (!isascii(ipb->ipl_info.fcp.scp_data[i])) {
+			count = 0;
+			goto out;
+		}
+		if (!has_lowercase && islower(ipb->ipl_info.fcp.scp_data[i]))
+			has_lowercase = 1;
+	}
+
+	if (has_lowercase)
+		memcpy(dest, ipb->ipl_info.fcp.scp_data, count);
+	else
+		for (i = 0; i < count; i++)
+			dest[i] = tolower(ipb->ipl_info.fcp.scp_data[i]);
+out:
+	dest[count] = '\0';
+	return count;
+}
+
+size_t append_ipl_scpdata(char *dest, size_t len)
+{
+	size_t rc;
+
+	rc = 0;
+	if (ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP)
+		rc = reipl_append_ascii_scpdata(dest, len, &ipl_block);
+	else
+		dest[0] = 0;
+	return rc;
+}
+
+
 static struct kobj_attribute sys_ipl_vm_parm_attr =
 	__ATTR(parm, S_IRUGO, ipl_vm_parm_show, NULL);
 
@@ -553,7 +615,7 @@ static ssize_t reipl_generic_vmparm_show(struct ipl_parameter_block *ipb,
 {
 	char vmparm[DIAG308_VMPARM_SIZE + 1] = {};
 
-	reipl_get_ascii_vmparm(vmparm, ipb);
+	reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb);
 	return sprintf(page, "%s\n", vmparm);
 }
 
@@ -626,6 +688,59 @@ static struct kobj_attribute sys_reipl_ccw_vmparm_attr =
 
 /* FCP reipl device attributes */
 
+static ssize_t reipl_fcp_scpdata_read(struct kobject *kobj,
+				      struct bin_attribute *attr,
+				      char *buf, loff_t off, size_t count)
+{
+	size_t size = reipl_block_fcp->ipl_info.fcp.scp_data_len;
+	void *scp_data = reipl_block_fcp->ipl_info.fcp.scp_data;
+
+	return memory_read_from_buffer(buf, count, &off, scp_data, size);
+}
+
+static ssize_t reipl_fcp_scpdata_write(struct kobject *kobj,
+				       struct bin_attribute *attr,
+				       char *buf, loff_t off, size_t count)
+{
+	size_t padding;
+	size_t scpdata_len;
+
+	if (off < 0)
+		return -EINVAL;
+
+	if (off >= DIAG308_SCPDATA_SIZE)
+		return -ENOSPC;
+
+	if (count > DIAG308_SCPDATA_SIZE - off)
+		count = DIAG308_SCPDATA_SIZE - off;
+
+	memcpy(reipl_block_fcp->ipl_info.fcp.scp_data, buf + off, count);
+	scpdata_len = off + count;
+
+	if (scpdata_len % 8) {
+		padding = 8 - (scpdata_len % 8);
+		memset(reipl_block_fcp->ipl_info.fcp.scp_data + scpdata_len,
+		       0, padding);
+		scpdata_len += padding;
+	}
+
+	reipl_block_fcp->ipl_info.fcp.scp_data_len = scpdata_len;
+	reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN + scpdata_len;
+	reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN + scpdata_len;
+
+	return count;
+}
+
+static struct bin_attribute sys_reipl_fcp_scp_data_attr = {
+	.attr = {
+		.name = "scp_data",
+		.mode = S_IRUGO | S_IWUSR,
+	},
+	.size = PAGE_SIZE,
+	.read = reipl_fcp_scpdata_read,
+	.write = reipl_fcp_scpdata_write,
+};
+
 DEFINE_IPL_ATTR_RW(reipl_fcp, wwpn, "0x%016llx\n", "%016llx\n",
 		   reipl_block_fcp->ipl_info.fcp.wwpn);
 DEFINE_IPL_ATTR_RW(reipl_fcp, lun, "0x%016llx\n", "%016llx\n",
@@ -647,7 +762,6 @@ static struct attribute *reipl_fcp_attrs[] = {
 };
 
 static struct attribute_group reipl_fcp_attr_group = {
-	.name  = IPL_FCP_STR,
 	.attrs = reipl_fcp_attrs,
 };
 
@@ -895,6 +1009,7 @@ static struct kobj_attribute reipl_type_attr =
 	__ATTR(reipl_type, 0644, reipl_type_show, reipl_type_store);
 
 static struct kset *reipl_kset;
+static struct kset *reipl_fcp_kset;
 
 static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
 			   const enum ipl_method m)
@@ -906,7 +1021,7 @@ static void get_ipl_string(char *dst, struct ipl_parameter_block *ipb,
 
 	reipl_get_ascii_loadparm(loadparm, ipb);
 	reipl_get_ascii_nss_name(nss_name, ipb);
-	reipl_get_ascii_vmparm(vmparm, ipb);
+	reipl_get_ascii_vmparm(vmparm, sizeof(vmparm), ipb);
 
 	switch (m) {
 	case REIPL_METHOD_CCW_VM:
@@ -1076,23 +1191,44 @@ static int __init reipl_fcp_init(void)
 	int rc;
 
 	if (!diag308_set_works) {
-		if (ipl_info.type == IPL_TYPE_FCP)
+		if (ipl_info.type == IPL_TYPE_FCP) {
 			make_attrs_ro(reipl_fcp_attrs);
-		else
+			sys_reipl_fcp_scp_data_attr.attr.mode = S_IRUGO;
+		} else
 			return 0;
 	}
 
 	reipl_block_fcp = (void *) get_zeroed_page(GFP_KERNEL);
 	if (!reipl_block_fcp)
 		return -ENOMEM;
-	rc = sysfs_create_group(&reipl_kset->kobj, &reipl_fcp_attr_group);
+
+	/* sysfs: create fcp kset for mixing attr group and bin attrs */
+	reipl_fcp_kset = kset_create_and_add(IPL_FCP_STR, NULL,
+					     &reipl_kset->kobj);
+	if (!reipl_kset) {
+		free_page((unsigned long) reipl_block_fcp);
+		return -ENOMEM;
+	}
+
+	rc = sysfs_create_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group);
+	if (rc) {
+		kset_unregister(reipl_fcp_kset);
+		free_page((unsigned long) reipl_block_fcp);
+		return rc;
+	}
+
+	rc = sysfs_create_bin_file(&reipl_fcp_kset->kobj,
+				   &sys_reipl_fcp_scp_data_attr);
 	if (rc) {
-		free_page((unsigned long)reipl_block_fcp);
+		sysfs_remove_group(&reipl_fcp_kset->kobj, &reipl_fcp_attr_group);
+		kset_unregister(reipl_fcp_kset);
+		free_page((unsigned long) reipl_block_fcp);
 		return rc;
 	}
-	if (ipl_info.type == IPL_TYPE_FCP) {
+
+	if (ipl_info.type == IPL_TYPE_FCP)
 		memcpy(reipl_block_fcp, IPL_PARMBLOCK_START, PAGE_SIZE);
-	} else {
+	else {
 		reipl_block_fcp->hdr.len = IPL_PARM_BLK_FCP_LEN;
 		reipl_block_fcp->hdr.version = IPL_PARM_BLOCK_VERSION;
 		reipl_block_fcp->hdr.blk0_len = IPL_PARM_BLK0_FCP_LEN;

arch/s390/kernel/mcount.S

@@ -11,111 +11,27 @@
 ftrace_stub:
 	br	%r14
 
-#ifdef CONFIG_64BIT
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-
 	.globl _mcount
 _mcount:
-	br	%r14
-
-	.globl ftrace_caller
-ftrace_caller:
-	larl	%r1,function_trace_stop
-	icm	%r1,0xf,0(%r1)
-	bnzr	%r14
-	stmg	%r2,%r5,32(%r15)
-	stg	%r14,112(%r15)
-	lgr	%r1,%r15
-	aghi	%r15,-160
-	stg	%r1,__SF_BACKCHAIN(%r15)
-	lgr	%r2,%r14
-	lg	%r3,168(%r15)
-	larl	%r14,ftrace_dyn_func
-	lg	%r14,0(%r14)
-	basr	%r14,%r14
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	.globl	ftrace_graph_caller
-ftrace_graph_caller:
-	# This unconditional branch gets runtime patched. Change only if
-	# you know what you are doing. See ftrace_enable_graph_caller().
-	j	0f
-	lg	%r2,272(%r15)
-	lg	%r3,168(%r15)
-	brasl	%r14,prepare_ftrace_return
-	stg	%r2,168(%r15)
-0:
-#endif
-	aghi	%r15,160
-	lmg	%r2,%r5,32(%r15)
-	lg	%r14,112(%r15)
+#ifdef CONFIG_DYNAMIC_FTRACE
 	br	%r14
 
 	.data
 	.globl	ftrace_dyn_func
 ftrace_dyn_func:
-	.quad	ftrace_stub
+	.long	ftrace_stub
 	.previous
 
-#else /* CONFIG_DYNAMIC_FTRACE */
-
-	.globl _mcount
-_mcount:
-	larl	%r1,function_trace_stop
-	icm	%r1,0xf,0(%r1)
-	bnzr	%r14
-	stmg	%r2,%r5,32(%r15)
-	stg	%r14,112(%r15)
-	lgr	%r1,%r15
-	aghi	%r15,-160
-	stg	%r1,__SF_BACKCHAIN(%r15)
-	lgr	%r2,%r14
-	lg	%r3,168(%r15)
-	larl	%r14,ftrace_trace_function
-	lg	%r14,0(%r14)
-	basr	%r14,%r14
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	lg	%r2,272(%r15)
-	lg	%r3,168(%r15)
-	brasl	%r14,prepare_ftrace_return
-	stg	%r2,168(%r15)
-#endif
-	aghi	%r15,160
-	lmg	%r2,%r5,32(%r15)
-	lg	%r14,112(%r15)
-	br	%r14
-
-#endif /* CONFIG_DYNAMIC_FTRACE */
-
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
-
-	.globl	return_to_handler
-return_to_handler:
-	stmg	%r2,%r5,32(%r15)
-	lgr	%r1,%r15
-	aghi	%r15,-160
-	stg	%r1,__SF_BACKCHAIN(%r15)
-	brasl	%r14,ftrace_return_to_handler
-	aghi	%r15,160
-	lgr	%r14,%r2
-	lmg	%r2,%r5,32(%r15)
-	br	%r14
-
-#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-
-#else /* CONFIG_64BIT */
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-
-	.globl _mcount
-_mcount:
-	br	%r14
-
 	.globl ftrace_caller
 ftrace_caller:
+#endif
 	stm	%r2,%r5,16(%r15)
 	bras	%r1,2f
+#ifdef CONFIG_DYNAMIC_FTRACE
+0:	.long	ftrace_dyn_func
+#else
 0:	.long	ftrace_trace_function
+#endif
 1:	.long	function_trace_stop
 2:	l	%r2,1b-0b(%r1)
 	icm	%r2,0xf,0(%r2)
@@ -131,53 +47,13 @@ ftrace_caller:
 	l	%r14,0(%r14)
 	basr	%r14,%r14
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
+#ifdef CONFIG_DYNAMIC_FTRACE
 	.globl	ftrace_graph_caller
 ftrace_graph_caller:
 	# This unconditional branch gets runtime patched. Change only if
 	# you know what you are doing. See ftrace_enable_graph_caller().
 	j	1f
-	bras	%r1,0f
-	.long	prepare_ftrace_return
-0:	l	%r2,152(%r15)
-	l	%r4,0(%r1)
-	l	%r3,100(%r15)
-	basr	%r14,%r4
-	st	%r2,100(%r15)
-1:
 #endif
-	ahi	%r15,96
-	l	%r14,56(%r15)
-3:	lm	%r2,%r5,16(%r15)
-	br	%r14
-
-	.data
-	.globl	ftrace_dyn_func
-ftrace_dyn_func:
-	.long	ftrace_stub
-	.previous
-
-#else /* CONFIG_DYNAMIC_FTRACE */
-
-	.globl _mcount
-_mcount:
-	stm	%r2,%r5,16(%r15)
-	bras	%r1,2f
-0:	.long	ftrace_trace_function
-1:	.long	function_trace_stop
-2:	l	%r2,1b-0b(%r1)
-	icm	%r2,0xf,0(%r2)
-	jnz	3f
-	st	%r14,56(%r15)
-	lr	%r0,%r15
-	ahi	%r15,-96
-	l	%r3,100(%r15)
-	la	%r2,0(%r14)
-	st	%r0,__SF_BACKCHAIN(%r15)
-	la	%r3,0(%r3)
-	l	%r14,0b-0b(%r1)
-	l	%r14,0(%r14)
-	basr	%r14,%r14
-#ifdef CONFIG_FUNCTION_GRAPH_TRACER
 	bras	%r1,0f
 	.long	prepare_ftrace_return
 0:	l	%r2,152(%r15)
@@ -185,14 +61,13 @@ _mcount:
 	l	%r3,100(%r15)
 	basr	%r14,%r4
 	st	%r2,100(%r15)
+1:
 #endif
 	ahi	%r15,96
 	l	%r14,56(%r15)
 3:	lm	%r2,%r5,16(%r15)
 	br	%r14
 
-#endif /* CONFIG_DYNAMIC_FTRACE */
-
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 
 	.globl	return_to_handler
@@ -211,6 +86,4 @@ return_to_handler:
 	lm	%r2,%r5,16(%r15)
 	br	%r14
 
-#endif /* CONFIG_FUNCTION_GRAPH_TRACER */
-
-#endif /* CONFIG_64BIT */
+#endif

arch/s390/kernel/mcount64.S

@@ -0,0 +1,78 @@
+/*
+ * Copyright IBM Corp. 2008,2009
+ *
+ *   Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,
+ *
+ */
+
+#include <asm/asm-offsets.h>
+
+	.globl ftrace_stub
+ftrace_stub:
+	br	%r14
+
+	.globl _mcount
+_mcount:
+#ifdef CONFIG_DYNAMIC_FTRACE
+	br	%r14
+
+	.data
+	.globl	ftrace_dyn_func
+ftrace_dyn_func:
+	.quad	ftrace_stub
+	.previous
+
+	.globl ftrace_caller
+ftrace_caller:
+#endif
+	larl	%r1,function_trace_stop
+	icm	%r1,0xf,0(%r1)
+	bnzr	%r14
+	stmg	%r2,%r5,32(%r15)
+	stg	%r14,112(%r15)
+	lgr	%r1,%r15
+	aghi	%r15,-160
+	stg	%r1,__SF_BACKCHAIN(%r15)
+	lgr	%r2,%r14
+	lg	%r3,168(%r15)
+#ifdef CONFIG_DYNAMIC_FTRACE
+	larl	%r14,ftrace_dyn_func
+#else
+	larl	%r14,ftrace_trace_function
+#endif
+	lg	%r14,0(%r14)
+	basr	%r14,%r14
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+#ifdef CONFIG_DYNAMIC_FTRACE
+	.globl	ftrace_graph_caller
+ftrace_graph_caller:
+	# This unconditional branch gets runtime patched. Change only if
+	# you know what you are doing. See ftrace_enable_graph_caller().
+	j	0f
+#endif
+	lg	%r2,272(%r15)
+	lg	%r3,168(%r15)
+	brasl	%r14,prepare_ftrace_return
+	stg	%r2,168(%r15)
+0:
+#endif
+	aghi	%r15,160
+	lmg	%r2,%r5,32(%r15)
+	lg	%r14,112(%r15)
+	br	%r14
+
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+
+	.globl	return_to_handler
+return_to_handler:
+	stmg	%r2,%r5,32(%r15)
+	lgr	%r1,%r15
+	aghi	%r15,-160
+	stg	%r1,__SF_BACKCHAIN(%r15)
+	brasl	%r14,ftrace_return_to_handler
+	aghi	%r15,160
+	lgr	%r14,%r2
+	lmg	%r2,%r5,32(%r15)
+	br	%r14
+
+#endif

arch/s390/kernel/setup.c

@@ -156,15 +156,11 @@ __setup("condev=", condev_setup);
 
 static void __init set_preferred_console(void)
 {
-	if (MACHINE_IS_KVM) {
+	if (MACHINE_IS_KVM)
 		add_preferred_console("hvc", 0, NULL);
-		s390_virtio_console_init();
-		return;
-	}
-
-	if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP)
+	else if (CONSOLE_IS_3215 || CONSOLE_IS_SCLP)
 		add_preferred_console("ttyS", 0, NULL);
-	if (CONSOLE_IS_3270)
+	else if (CONSOLE_IS_3270)
 		add_preferred_console("tty3270", 0, NULL);
 }
 

arch/s390/kernel/smp.c

@@ -49,6 +49,7 @@
 #include <asm/sclp.h>
 #include <asm/cputime.h>
 #include <asm/vdso.h>
+#include <asm/cpu.h>
 #include "entry.h"
 
 static struct task_struct *current_set[NR_CPUS];
@@ -70,6 +71,23 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
 static void smp_ext_bitcall(int, ec_bit_sig);
 
+static int cpu_stopped(int cpu)
+{
+	__u32 status;
+
+	switch (signal_processor_ps(&status, 0, cpu, sigp_sense)) {
+	case sigp_order_code_accepted:
+	case sigp_status_stored:
+		/* Check for stopped and check stop state */
+		if (status & 0x50)
+			return 1;
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
 void smp_send_stop(void)
 {
 	int cpu, rc;
@@ -86,7 +104,7 @@ void smp_send_stop(void)
 			rc = signal_processor(cpu, sigp_stop);
 		} while (rc == sigp_busy);
 
-		while (!smp_cpu_not_running(cpu))
+		while (!cpu_stopped(cpu))
 			cpu_relax();
 	}
 }
@@ -269,19 +287,6 @@ static inline void smp_get_save_area(unsigned int cpu, unsigned int phy_cpu) { }
 
 #endif /* CONFIG_ZFCPDUMP */
 
-static int cpu_stopped(int cpu)
-{
-	__u32 status;
-
-	/* Check for stopped state */
-	if (signal_processor_ps(&status, 0, cpu, sigp_sense) ==
-	    sigp_status_stored) {
-		if (status & 0x40)
-			return 1;
-	}
-	return 0;
-}
-
 static int cpu_known(int cpu_id)
 {
 	int cpu;
@@ -300,7 +305,7 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
 	logical_cpu = cpumask_first(&avail);
 	if (logical_cpu >= nr_cpu_ids)
 		return 0;
-	for (cpu_id = 0; cpu_id <= 65535; cpu_id++) {
+	for (cpu_id = 0; cpu_id <= MAX_CPU_ADDRESS; cpu_id++) {
 		if (cpu_known(cpu_id))
 			continue;
 		__cpu_logical_map[logical_cpu] = cpu_id;
@@ -379,7 +384,7 @@ static void __init smp_detect_cpus(void)
 	/* Use sigp detection algorithm if sclp doesn't work. */
 	if (sclp_get_cpu_info(info)) {
 		smp_use_sigp_detection = 1;
-		for (cpu = 0; cpu <= 65535; cpu++) {
+		for (cpu = 0; cpu <= MAX_CPU_ADDRESS; cpu++) {
 			if (cpu == boot_cpu_addr)
 				continue;
 			__cpu_logical_map[CPU_INIT_NO] = cpu;
@@ -635,7 +640,7 @@ int __cpu_disable(void)
 void __cpu_die(unsigned int cpu)
 {
 	/* Wait until target cpu is down */
-	while (!smp_cpu_not_running(cpu))
+	while (!cpu_stopped(cpu))
 		cpu_relax();
 	smp_free_lowcore(cpu);
 	pr_info("Processor %d stopped\n", cpu);

arch/s390/power/swsusp.c → arch/s390/kernel/suspend.c

@@ -1,13 +1,44 @@
 /*
- * Support for suspend and resume on s390
+ * Suspend support specific for s390.
  *
  * Copyright IBM Corp. 2009
  *
  * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
- *
  */
 
+#include <linux/suspend.h>
+#include <linux/reboot.h>
+#include <linux/pfn.h>
+#include <linux/mm.h>
+#include <asm/sections.h>
 #include <asm/system.h>
+#include <asm/ipl.h>
+
+/*
+ * References to section boundaries
+ */
+extern const void __nosave_begin, __nosave_end;
+
+/*
+ *  check if given pfn is in the 'nosave' or in the read only NSS section
+ */
+int pfn_is_nosave(unsigned long pfn)
+{
+	unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
+	unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
+					>> PAGE_SHIFT;
+	unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
+	unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
+
+	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
+		return 1;
+	if (pfn >= stext_pfn && pfn <= eshared_pfn) {
+		if (ipl_info.type == IPL_TYPE_NSS)
+			return 1;
+	} else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
+		return 1;
+	return 0;
+}
 
 void save_processor_state(void)
 {

arch/s390/power/swsusp_asm64.S → arch/s390/kernel/swsusp_asm64.S

@@ -21,7 +21,7 @@
  * This function runs with disabled interrupts.
  */
 	.section .text
-	.align	2
+	.align	4
 	.globl swsusp_arch_suspend
 swsusp_arch_suspend:
 	stmg	%r6,%r15,__SF_GPRS(%r15)

arch/s390/kernel/time.c

@@ -60,6 +60,7 @@
 #define TICK_SIZE tick
 
 u64 sched_clock_base_cc = -1;	/* Force to data section. */
+EXPORT_SYMBOL_GPL(sched_clock_base_cc);
 
 static DEFINE_PER_CPU(struct clock_event_device, comparators);
 
@@ -68,7 +69,7 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators);
  */
 unsigned long long notrace sched_clock(void)
 {
-	return ((get_clock_xt() - sched_clock_base_cc) * 125) >> 9;
+	return (get_clock_monotonic() * 125) >> 9;
 }
 
 /*

arch/s390/kernel/vmlinux.lds.S

@@ -52,55 +52,18 @@ SECTIONS
 	. = ALIGN(PAGE_SIZE);
 	_eshared = .;		/* End of shareable data */
 
-	. = ALIGN(16);		/* Exception table */
-	__ex_table : {
-		__start___ex_table = .;
-		*(__ex_table)
-		__stop___ex_table = .;
-	} :data
-
-	.data : {		/* Data */
-		DATA_DATA
-		CONSTRUCTORS
-	}
-
-	. = ALIGN(PAGE_SIZE);
-	.data_nosave : {
-	__nosave_begin = .;
-		*(.data.nosave)
-	}
-	. = ALIGN(PAGE_SIZE);
-	__nosave_end = .;
-
-	. = ALIGN(PAGE_SIZE);
-	.data.page_aligned : {
-		*(.data.idt)
-	}
+	EXCEPTION_TABLE(16) :data
 
-	. = ALIGN(0x100);
-	.data.cacheline_aligned : {
-		*(.data.cacheline_aligned)
-	}
+	RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
 
-	. = ALIGN(0x100);
-	.data.read_mostly : {
-		*(.data.read_mostly)
-	}
 	_edata = .;		/* End of data section */
 
-	. = ALIGN(THREAD_SIZE);	/* init_task */
-	.data.init_task : {
-		*(.data.init_task)
-	}
-
 	/* will be freed after init */
 	. = ALIGN(PAGE_SIZE);	/* Init code and data */
 	__init_begin = .;
-	.init.text : {
-		_sinittext = .;
-		INIT_TEXT
-		_einittext = .;
-	}
+
+	INIT_TEXT_SECTION(PAGE_SIZE)
+
 	/*
 	 * .exit.text is discarded at runtime, not link time,
 	 * to deal with references from __bug_table
@@ -111,49 +74,13 @@ SECTIONS
 
 	/* early.c uses stsi, which requires page aligned data. */
 	. = ALIGN(PAGE_SIZE);
-	.init.data : {
-		INIT_DATA
-	}
-	. = ALIGN(0x100);
-	.init.setup : {
-		__setup_start = .;
-		*(.init.setup)
-		__setup_end = .;
-	}
-	.initcall.init : {
-		__initcall_start = .;
-		INITCALLS
-		__initcall_end = .;
-	}
-
-	.con_initcall.init : {
-		__con_initcall_start = .;
-		*(.con_initcall.init)
-		__con_initcall_end = .;
-	}
-	SECURITY_INIT
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	. = ALIGN(0x100);
-	.init.ramfs : {
-		__initramfs_start = .;
-		*(.init.ramfs)
-		. = ALIGN(2);
-		__initramfs_end = .;
-	}
-#endif
+	INIT_DATA_SECTION(0x100)
 
 	PERCPU(PAGE_SIZE)
 	. = ALIGN(PAGE_SIZE);
 	__init_end = .;		/* freed after init ends here */
 
-	/* BSS */
-	.bss : {
-		__bss_start = .;
-		*(.bss)
-		. = ALIGN(2);
-		__bss_stop = .;
-	}
+	BSS_SECTION(0, 2, 0)
 
 	_end = . ;
 

arch/s390/mm/Makefile

@@ -2,7 +2,7 @@
 # Makefile for the linux s390-specific parts of the memory manager.
 #
 
-obj-y	 := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o
+obj-y	 := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o \
+	    page-states.o
 obj-$(CONFIG_CMM) += cmm.o
 obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
-obj-$(CONFIG_PAGE_STATES) += page-states.o

arch/s390/mm/fault.c

@@ -10,6 +10,7 @@
  *    Copyright (C) 1995  Linus Torvalds
  */
 
+#include <linux/perf_counter.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -305,7 +306,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int write)
 	 * interrupts again and then search the VMAs
 	 */
 	local_irq_enable();
-
+	perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
 	down_read(&mm->mmap_sem);
 
 	si_code = SEGV_MAPERR;
@@ -363,11 +364,15 @@ good_area:
 		}
 		BUG();
 	}
-	if (fault & VM_FAULT_MAJOR)
+	if (fault & VM_FAULT_MAJOR) {
 		tsk->maj_flt++;
-	else
+		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, 0,
+				     regs, address);
+	} else {
 		tsk->min_flt++;
-
+		perf_swcounter_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, 0,
+				     regs, address);
+	}
         up_read(&mm->mmap_sem);
 	/*
 	 * The instruction that caused the program check will

arch/s390/mm/page-states.c

@@ -1,6 +1,4 @@
 /*
- * arch/s390/mm/page-states.c
- *
  * Copyright IBM Corp. 2008
  *
  * Guest page hinting for unused pages.
@@ -17,11 +15,12 @@
 #define ESSA_SET_STABLE		1
 #define ESSA_SET_UNUSED		2
 
-static int cmma_flag;
+static int cmma_flag = 1;
 
 static int __init cmma(char *str)
 {
 	char *parm;
+
 	parm = strstrip(str);
 	if (strcmp(parm, "yes") == 0 || strcmp(parm, "on") == 0) {
 		cmma_flag = 1;
@@ -32,7 +31,6 @@ static int __init cmma(char *str)
 		return 1;
 	return 0;
 }
-
 __setup("cmma=", cmma);
 
 void __init cmma_init(void)

arch/s390/mm/pgtable.c

@@ -78,9 +78,9 @@ unsigned long *crst_table_alloc(struct mm_struct *mm, int noexec)
 		}
 		page->index = page_to_phys(shadow);
 	}
-	spin_lock(&mm->page_table_lock);
+	spin_lock(&mm->context.list_lock);
 	list_add(&page->lru, &mm->context.crst_list);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(&mm->context.list_lock);
 	return (unsigned long *) page_to_phys(page);
 }
 
@@ -89,9 +89,9 @@ void crst_table_free(struct mm_struct *mm, unsigned long *table)
 	unsigned long *shadow = get_shadow_table(table);
 	struct page *page = virt_to_page(table);
 
-	spin_lock(&mm->page_table_lock);
+	spin_lock(&mm->context.list_lock);
 	list_del(&page->lru);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(&mm->context.list_lock);
 	if (shadow)
 		free_pages((unsigned long) shadow, ALLOC_ORDER);
 	free_pages((unsigned long) table, ALLOC_ORDER);
@@ -182,7 +182,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 	unsigned long bits;
 
 	bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
-	spin_lock(&mm->page_table_lock);
+	spin_lock(&mm->context.list_lock);
 	page = NULL;
 	if (!list_empty(&mm->context.pgtable_list)) {
 		page = list_first_entry(&mm->context.pgtable_list,
@@ -191,7 +191,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 			page = NULL;
 	}
 	if (!page) {
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(&mm->context.list_lock);
 		page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
 		if (!page)
 			return NULL;
@@ -202,7 +202,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 			clear_table_pgstes(table);
 		else
 			clear_table(table, _PAGE_TYPE_EMPTY, PAGE_SIZE);
-		spin_lock(&mm->page_table_lock);
+		spin_lock(&mm->context.list_lock);
 		list_add(&page->lru, &mm->context.pgtable_list);
 	}
 	table = (unsigned long *) page_to_phys(page);
@@ -213,7 +213,7 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 	page->flags |= bits;
 	if ((page->flags & FRAG_MASK) == ((1UL << TABLES_PER_PAGE) - 1))
 		list_move_tail(&page->lru, &mm->context.pgtable_list);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(&mm->context.list_lock);
 	return table;
 }
 
@@ -225,7 +225,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
 	bits = (mm->context.noexec || mm->context.has_pgste) ? 3UL : 1UL;
 	bits <<= (__pa(table) & (PAGE_SIZE - 1)) / 256 / sizeof(unsigned long);
 	page = pfn_to_page(__pa(table) >> PAGE_SHIFT);
-	spin_lock(&mm->page_table_lock);
+	spin_lock(&mm->context.list_lock);
 	page->flags ^= bits;
 	if (page->flags & FRAG_MASK) {
 		/* Page now has some free pgtable fragments. */
@@ -234,7 +234,7 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
 	} else
 		/* All fragments of the 4K page have been freed. */
 		list_del(&page->lru);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(&mm->context.list_lock);
 	if (page) {
 		pgtable_page_dtor(page);
 		__free_page(page);
@@ -245,7 +245,7 @@ void disable_noexec(struct mm_struct *mm, struct task_struct *tsk)
 {
 	struct page *page;
 
-	spin_lock(&mm->page_table_lock);
+	spin_lock(&mm->context.list_lock);
 	/* Free shadow region and segment tables. */
 	list_for_each_entry(page, &mm->context.crst_list, lru)
 		if (page->index) {
@@ -255,7 +255,7 @@ void disable_noexec(struct mm_struct *mm, struct task_struct *tsk)
 	/* "Free" second halves of page tables. */
 	list_for_each_entry(page, &mm->context.pgtable_list, lru)
 		page->flags &= ~SECOND_HALVES;
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(&mm->context.list_lock);
 	mm->context.noexec = 0;
 	update_mm(mm, tsk);
 }

arch/s390/mm/vmem.c

@@ -331,6 +331,7 @@ void __init vmem_map_init(void)
 	unsigned long start, end;
 	int i;
 
+	spin_lock_init(&init_mm.context.list_lock);
 	INIT_LIST_HEAD(&init_mm.context.crst_list);
 	INIT_LIST_HEAD(&init_mm.context.pgtable_list);
 	init_mm.context.noexec = 0;

arch/s390/power/Makefile

@@ -1,8 +0,0 @@
-#
-# Makefile for s390 PM support
-#
-
-obj-$(CONFIG_HIBERNATION) += suspend.o
-obj-$(CONFIG_HIBERNATION) += swsusp.o
-obj-$(CONFIG_HIBERNATION) += swsusp_64.o
-obj-$(CONFIG_HIBERNATION) += swsusp_asm64.o

arch/s390/power/suspend.c

@@ -1,40 +0,0 @@
-/*
- * Suspend support specific for s390.
- *
- * Copyright IBM Corp. 2009
- *
- * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
- */
-
-#include <linux/mm.h>
-#include <linux/suspend.h>
-#include <linux/reboot.h>
-#include <linux/pfn.h>
-#include <asm/sections.h>
-#include <asm/ipl.h>
-
-/*
- * References to section boundaries
- */
-extern const void __nosave_begin, __nosave_end;
-
-/*
- *  check if given pfn is in the 'nosave' or in the read only NSS section
- */
-int pfn_is_nosave(unsigned long pfn)
-{
-	unsigned long nosave_begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT;
-	unsigned long nosave_end_pfn = PAGE_ALIGN(__pa(&__nosave_end))
-					>> PAGE_SHIFT;
-	unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
-	unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
-
-	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
-		return 1;
-	if (pfn >= stext_pfn && pfn <= eshared_pfn) {
-		if (ipl_info.type == IPL_TYPE_NSS)
-			return 1;
-	} else if ((tprot(pfn * PAGE_SIZE) && pfn > 0))
-		return 1;
-	return 0;
-}

arch/s390/power/swsusp_64.c

@@ -1,17 +0,0 @@
-/*
- * Support for suspend and resume on s390
- *
- * Copyright IBM Corp. 2009
- *
- * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
- *
- */
-
-#include <asm/system.h>
-#include <linux/interrupt.h>
-
-void do_after_copyback(void)
-{
-	mb();
-}
-

drivers/char/hvc_iucv.c

@@ -1006,7 +1006,7 @@ static int __init hvc_iucv_alloc(int id, unsigned int is_console)
 	priv->dev->release = (void (*)(struct device *)) kfree;
 	rc = device_register(priv->dev);
 	if (rc) {
-		kfree(priv->dev);
+		put_device(priv->dev);
 		goto out_error_dev;
 	}
 

drivers/s390/block/dasd.c

@@ -669,14 +669,14 @@ static void dasd_profile_end(struct dasd_block *block,
  * memory and 2) dasd_smalloc_request uses the static ccw memory
  * that gets allocated for each device.
  */
-struct dasd_ccw_req *dasd_kmalloc_request(char *magic, int cplength,
+struct dasd_ccw_req *dasd_kmalloc_request(int magic, int cplength,
 					  int datasize,
 					  struct dasd_device *device)
 {
 	struct dasd_ccw_req *cqr;
 
 	/* Sanity checks */
-	BUG_ON( magic == NULL || datasize > PAGE_SIZE ||
+	BUG_ON(datasize > PAGE_SIZE ||
 	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
 
 	cqr = kzalloc(sizeof(struct dasd_ccw_req), GFP_ATOMIC);
@@ -700,14 +700,13 @@ struct dasd_ccw_req *dasd_kmalloc_request(char *magic, int cplength,
 			return ERR_PTR(-ENOMEM);
 		}
 	}
-	strncpy((char *) &cqr->magic, magic, 4);
-	ASCEBC((char *) &cqr->magic, 4);
+	cqr->magic =  magic;
 	set_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
 	dasd_get_device(device);
 	return cqr;
 }
 
-struct dasd_ccw_req *dasd_smalloc_request(char *magic, int cplength,
+struct dasd_ccw_req *dasd_smalloc_request(int magic, int cplength,
 					  int datasize,
 					  struct dasd_device *device)
 {
@@ -717,7 +716,7 @@ struct dasd_ccw_req *dasd_smalloc_request(char *magic, int cplength,
 	int size;
 
 	/* Sanity checks */
-	BUG_ON( magic == NULL || datasize > PAGE_SIZE ||
+	BUG_ON(datasize > PAGE_SIZE ||
 	     (cplength*sizeof(struct ccw1)) > PAGE_SIZE);
 
 	size = (sizeof(struct dasd_ccw_req) + 7L) & -8L;
@@ -744,8 +743,7 @@ struct dasd_ccw_req *dasd_smalloc_request(char *magic, int cplength,
 		cqr->data = data;
  		memset(cqr->data, 0, datasize);
 	}
-	strncpy((char *) &cqr->magic, magic, 4);
-	ASCEBC((char *) &cqr->magic, 4);
+	cqr->magic = magic;
 	set_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
 	dasd_get_device(device);
 	return cqr;
@@ -899,9 +897,6 @@ int dasd_start_IO(struct dasd_ccw_req *cqr)
 	switch (rc) {
 	case 0:
 		cqr->status = DASD_CQR_IN_IO;
-		DBF_DEV_EVENT(DBF_DEBUG, device,
-			      "start_IO: request %p started successful",
-			      cqr);
 		break;
 	case -EBUSY:
 		DBF_DEV_EVENT(DBF_DEBUG, device, "%s",
@@ -1699,8 +1694,11 @@ static void __dasd_process_request_queue(struct dasd_block *block)
 	 * for that. State DASD_STATE_ONLINE is normal block device
 	 * operation.
 	 */
-	if (basedev->state < DASD_STATE_READY)
+	if (basedev->state < DASD_STATE_READY) {
+		while ((req = blk_fetch_request(block->request_queue)))
+			__blk_end_request_all(req, -EIO);
 		return;
+	}
 	/* Now we try to fetch requests from the request queue */
 	while (!blk_queue_plugged(queue) && (req = blk_peek_request(queue))) {
 		if (basedev->features & DASD_FEATURE_READONLY &&
@@ -2530,7 +2528,7 @@ EXPORT_SYMBOL_GPL(dasd_generic_restore_device);
 static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
 						   void *rdc_buffer,
 						   int rdc_buffer_size,
-						   char *magic)
+						   int magic)
 {
 	struct dasd_ccw_req *cqr;
 	struct ccw1 *ccw;
@@ -2561,7 +2559,7 @@ static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
 }
 
 
-int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic,
+int dasd_generic_read_dev_chars(struct dasd_device *device, int magic,
 				void *rdc_buffer, int rdc_buffer_size)
 {
 	int ret;

drivers/s390/block/dasd_3990_erp.c

@@ -7,7 +7,7 @@
  *
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-eckd"
 
 #include <linux/timer.h>
 #include <linux/slab.h>

drivers/s390/block/dasd_alias.c

@@ -5,7 +5,7 @@
  * Author(s): Stefan Weinhuber <wein@de.ibm.com>
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-eckd"
 
 #include <linux/list.h>
 #include <asm/ebcdic.h>
@@ -379,8 +379,7 @@ static int read_unit_address_configuration(struct dasd_device *device,
 	int rc;
 	unsigned long flags;
 
-	cqr = dasd_kmalloc_request("ECKD",
-				   1 /* PSF */	+ 1 /* RSSD */ ,
+	cqr = dasd_kmalloc_request(DASD_ECKD_MAGIC, 1 /* PSF */	+ 1 /* RSSD */,
 				   (sizeof(struct dasd_psf_prssd_data)),
 				   device);
 	if (IS_ERR(cqr))

drivers/s390/block/dasd_diag.c

@@ -8,7 +8,7 @@
  *
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-diag"
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
@@ -523,8 +523,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
 	/* Build the request */
 	datasize = sizeof(struct dasd_diag_req) +
 		count*sizeof(struct dasd_diag_bio);
-	cqr = dasd_smalloc_request(dasd_diag_discipline.name, 0,
-				   datasize, memdev);
+	cqr = dasd_smalloc_request(DASD_DIAG_MAGIC, 0, datasize, memdev);
 	if (IS_ERR(cqr))
 		return cqr;
 

drivers/s390/block/dasd_eckd.c

@@ -10,7 +10,7 @@
  * Author.........: Nigel Hislop <hislop_nigel@emc.com>
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-eckd"
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
@@ -730,7 +730,8 @@ static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device,
 	struct dasd_ccw_req *cqr;
 	struct ccw1 *ccw;
 
-	cqr = dasd_smalloc_request("ECKD", 1 /* RCD */, ciw->count, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1 /* RCD */, ciw->count,
+				   device);
 
 	if (IS_ERR(cqr)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
@@ -934,8 +935,7 @@ static int dasd_eckd_read_features(struct dasd_device *device)
 	struct dasd_eckd_private *private;
 
 	private = (struct dasd_eckd_private *) device->private;
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   1 /* PSF */	+ 1 /* RSSD */ ,
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1 /* PSF */	+ 1 /* RSSD */,
 				   (sizeof(struct dasd_psf_prssd_data) +
 				    sizeof(struct dasd_rssd_features)),
 				   device);
@@ -998,7 +998,7 @@ static struct dasd_ccw_req *dasd_eckd_build_psf_ssc(struct dasd_device *device,
 	struct dasd_psf_ssc_data *psf_ssc_data;
 	struct ccw1 *ccw;
 
-	cqr = dasd_smalloc_request("ECKD", 1 /* PSF */ ,
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1 /* PSF */ ,
 				  sizeof(struct dasd_psf_ssc_data),
 				  device);
 
@@ -1149,8 +1149,8 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 		goto out_err3;
 
 	/* Read Device Characteristics */
-	rc = dasd_generic_read_dev_chars(device, "ECKD", &private->rdc_data,
-					 64);
+	rc = dasd_generic_read_dev_chars(device, DASD_ECKD_MAGIC,
+					 &private->rdc_data, 64);
 	if (rc) {
 		DBF_EVENT(DBF_WARNING,
 			  "Read device characteristics failed, rc=%d for "
@@ -1217,8 +1217,7 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
 
 	cplength = 8;
 	datasize = sizeof(struct DE_eckd_data) + 2*sizeof(struct LO_eckd_data);
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   cplength, datasize, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, cplength, datasize, device);
 	if (IS_ERR(cqr))
 		return cqr;
 	ccw = cqr->cpaddr;
@@ -1499,8 +1498,7 @@ dasd_eckd_format_device(struct dasd_device * device,
 		return ERR_PTR(-EINVAL);
 	}
 	/* Allocate the format ccw request. */
-	fcp = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   cplength, datasize, device);
+	fcp = dasd_smalloc_request(DASD_ECKD_MAGIC, cplength, datasize, device);
 	if (IS_ERR(fcp))
 		return fcp;
 
@@ -1783,8 +1781,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
 		datasize += count*sizeof(struct LO_eckd_data);
 	}
 	/* Allocate the ccw request. */
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   cplength, datasize, startdev);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, cplength, datasize,
+				   startdev);
 	if (IS_ERR(cqr))
 		return cqr;
 	ccw = cqr->cpaddr;
@@ -1948,8 +1946,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track(
 		cidaw * sizeof(unsigned long long);
 
 	/* Allocate the ccw request. */
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   cplength, datasize, startdev);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, cplength, datasize,
+				   startdev);
 	if (IS_ERR(cqr))
 		return cqr;
 	ccw = cqr->cpaddr;
@@ -2249,8 +2247,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track(
 
 	/* Allocate the ccw request. */
 	itcw_size = itcw_calc_size(0, ctidaw, 0);
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   0, itcw_size, startdev);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 0, itcw_size, startdev);
 	if (IS_ERR(cqr))
 		return cqr;
 
@@ -2557,8 +2554,7 @@ dasd_eckd_release(struct dasd_device *device)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   1, 32, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1, 32, device);
 	if (IS_ERR(cqr)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 			    "Could not allocate initialization request");
@@ -2600,8 +2596,7 @@ dasd_eckd_reserve(struct dasd_device *device)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   1, 32, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1, 32, device);
 	if (IS_ERR(cqr)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 			    "Could not allocate initialization request");
@@ -2642,8 +2637,7 @@ dasd_eckd_steal_lock(struct dasd_device *device)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   1, 32, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1, 32, device);
 	if (IS_ERR(cqr)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 			    "Could not allocate initialization request");
@@ -2681,8 +2675,7 @@ dasd_eckd_performance(struct dasd_device *device, void __user *argp)
 	struct ccw1 *ccw;
 	int rc;
 
-	cqr = dasd_smalloc_request(dasd_eckd_discipline.name,
-				   1 /* PSF */  + 1 /* RSSD */ ,
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 1 /* PSF */  + 1 /* RSSD */,
 				   (sizeof(struct dasd_psf_prssd_data) +
 				    sizeof(struct dasd_rssd_perf_stats_t)),
 				   device);
@@ -2828,7 +2821,7 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
 	}
 
 	/* setup CCWs for PSF + RSSD */
-	cqr = dasd_smalloc_request("ECKD", 2 , 0, device);
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 2 , 0, device);
 	if (IS_ERR(cqr)) {
 		DBF_DEV_EVENT(DBF_WARNING, device, "%s",
 			"Could not allocate initialization request");
@@ -3254,7 +3247,7 @@ int dasd_eckd_restore_device(struct dasd_device *device)
 
 	/* Read Device Characteristics */
 	memset(&private->rdc_data, 0, sizeof(private->rdc_data));
-	rc = dasd_generic_read_dev_chars(device, "ECKD",
+	rc = dasd_generic_read_dev_chars(device, DASD_ECKD_MAGIC,
 					 &private->rdc_data, 64);
 	if (rc) {
 		DBF_EVENT(DBF_WARNING,

drivers/s390/block/dasd_eer.c

@@ -6,7 +6,7 @@
  *  Author(s): Stefan Weinhuber <wein@de.ibm.com>
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-eckd"
 
 #include <linux/init.h>
 #include <linux/fs.h>
@@ -464,7 +464,7 @@ int dasd_eer_enable(struct dasd_device *device)
 	if (!device->discipline || strcmp(device->discipline->name, "ECKD"))
 		return -EPERM;	/* FIXME: -EMEDIUMTYPE ? */
 
-	cqr = dasd_kmalloc_request("ECKD", 1 /* SNSS */,
+	cqr = dasd_kmalloc_request(DASD_ECKD_MAGIC, 1 /* SNSS */,
 				   SNSS_DATA_SIZE, device);
 	if (IS_ERR(cqr))
 		return -ENOMEM;

drivers/s390/block/dasd_erp.c

@@ -99,8 +99,8 @@ dasd_default_erp_action(struct dasd_ccw_req *cqr)
 		cqr->lpm    = LPM_ANYPATH;
 		cqr->status = DASD_CQR_FILLED;
         } else {
-		dev_err(&device->cdev->dev,
-			"default ERP has run out of retries and failed\n");
+		pr_err("%s: default ERP has run out of retries and failed\n",
+		       dev_name(&device->cdev->dev));
 		cqr->status = DASD_CQR_FAILED;
 		cqr->stopclk = get_clock();
         }

drivers/s390/block/dasd_fba.c

@@ -5,7 +5,7 @@
  * Copyright IBM Corp. 1999, 2009
  */
 
-#define KMSG_COMPONENT "dasd"
+#define KMSG_COMPONENT "dasd-fba"
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
@@ -152,8 +152,8 @@ dasd_fba_check_characteristics(struct dasd_device *device)
 	block->base = device;
 
 	/* Read Device Characteristics */
-	rc = dasd_generic_read_dev_chars(device, "FBA ", &private->rdc_data,
-					 32);
+	rc = dasd_generic_read_dev_chars(device, DASD_FBA_MAGIC,
+					 &private->rdc_data, 32);
 	if (rc) {
 		DBF_EVENT(DBF_WARNING, "Read device characteristics returned "
 			  "error %d for device: %s",
@@ -305,8 +305,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
 		datasize += (count - 1)*sizeof(struct LO_fba_data);
 	}
 	/* Allocate the ccw request. */
-	cqr = dasd_smalloc_request(dasd_fba_discipline.name,
-				   cplength, datasize, memdev);
+	cqr = dasd_smalloc_request(DASD_FBA_MAGIC, cplength, datasize, memdev);
 	if (IS_ERR(cqr))
 		return cqr;
 	ccw = cqr->cpaddr;

drivers/s390/block/dasd_int.h

@@ -59,6 +59,11 @@
 #include <asm/dasd.h>
 #include <asm/idals.h>
 
+/* DASD discipline magic */
+#define DASD_ECKD_MAGIC 0xC5C3D2C4
+#define DASD_DIAG_MAGIC 0xC4C9C1C7
+#define DASD_FBA_MAGIC 0xC6C2C140
+
 /*
  * SECTION: Type definitions
  */
@@ -540,9 +545,9 @@ extern struct block_device_operations dasd_device_operations;
 extern struct kmem_cache *dasd_page_cache;
 
 struct dasd_ccw_req *
-dasd_kmalloc_request(char *, int, int, struct dasd_device *);
+dasd_kmalloc_request(int , int, int, struct dasd_device *);
 struct dasd_ccw_req *
-dasd_smalloc_request(char *, int, int, struct dasd_device *);
+dasd_smalloc_request(int , int, int, struct dasd_device *);
 void dasd_kfree_request(struct dasd_ccw_req *, struct dasd_device *);
 void dasd_sfree_request(struct dasd_ccw_req *, struct dasd_device *);
 
@@ -587,7 +592,7 @@ void dasd_generic_handle_state_change(struct dasd_device *);
 int dasd_generic_pm_freeze(struct ccw_device *);
 int dasd_generic_restore_device(struct ccw_device *);
 
-int dasd_generic_read_dev_chars(struct dasd_device *, char *, void *, int);
+int dasd_generic_read_dev_chars(struct dasd_device *, int, void *, int);
 char *dasd_get_sense(struct irb *);
 
 /* externals in dasd_devmap.c */

drivers/s390/block/dasd_ioctl.c

@@ -98,8 +98,8 @@ static int dasd_ioctl_quiesce(struct dasd_block *block)
 	if (!capable (CAP_SYS_ADMIN))
 		return -EACCES;
 
-	dev_info(&base->cdev->dev, "The DASD has been put in the quiesce "
-		 "state\n");
+	pr_info("%s: The DASD has been put in the quiesce "
+		"state\n", dev_name(&base->cdev->dev));
 	spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
 	base->stopped |= DASD_STOPPED_QUIESCE;
 	spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
@@ -119,8 +119,8 @@ static int dasd_ioctl_resume(struct dasd_block *block)
 	if (!capable (CAP_SYS_ADMIN))
 		return -EACCES;
 
-	dev_info(&base->cdev->dev, "I/O operations have been resumed "
-		 "on the DASD\n");
+	pr_info("%s: I/O operations have been resumed "
+		"on the DASD\n", dev_name(&base->cdev->dev));
 	spin_lock_irqsave(get_ccwdev_lock(base->cdev), flags);
 	base->stopped &= ~DASD_STOPPED_QUIESCE;
 	spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
@@ -146,8 +146,8 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
 		return -EPERM;
 
 	if (base->state != DASD_STATE_BASIC) {
-		dev_warn(&base->cdev->dev,
-			 "The DASD cannot be formatted while it is enabled\n");
+		pr_warning("%s: The DASD cannot be formatted while it is "
+			   "enabled\n",  dev_name(&base->cdev->dev));
 		return -EBUSY;
 	}
 
@@ -175,9 +175,9 @@ static int dasd_format(struct dasd_block *block, struct format_data_t *fdata)
 		dasd_sfree_request(cqr, cqr->memdev);
 		if (rc) {
 			if (rc != -ERESTARTSYS)
-				dev_err(&base->cdev->dev,
-					"Formatting unit %d failed with "
-					"rc=%d\n", fdata->start_unit, rc);
+				pr_err("%s: Formatting unit %d failed with "
+				       "rc=%d\n", dev_name(&base->cdev->dev),
+				       fdata->start_unit, rc);
 			return rc;
 		}
 		fdata->start_unit++;
@@ -204,9 +204,9 @@ dasd_ioctl_format(struct block_device *bdev, void __user *argp)
 	if (copy_from_user(&fdata, argp, sizeof(struct format_data_t)))
 		return -EFAULT;
 	if (bdev != bdev->bd_contains) {
-		dev_warn(&block->base->cdev->dev,
-			 "The specified DASD is a partition and cannot be "
-			 "formatted\n");
+		pr_warning("%s: The specified DASD is a partition and cannot "
+			   "be formatted\n",
+			   dev_name(&block->base->cdev->dev));
 		return -EINVAL;
 	}
 	return dasd_format(block, &fdata);

drivers/s390/block/xpram.c

@@ -42,7 +42,6 @@
 #include <linux/suspend.h>
 #include <linux/platform_device.h>
 #include <asm/uaccess.h>
-#include <asm/checksum.h>
 
 #define XPRAM_NAME	"xpram"
 #define XPRAM_DEVS	1	/* one partition */
@@ -51,7 +50,6 @@
 typedef struct {
 	unsigned int	size;		/* size of xpram segment in pages */
 	unsigned int	offset;		/* start page of xpram segment */
-	unsigned int	csum;		/* partition checksum for suspend */
 } xpram_device_t;
 
 static xpram_device_t xpram_devices[XPRAM_MAX_DEVS];
@@ -386,58 +384,6 @@ out:
 	return rc;
 }
 
-/*
- * Save checksums for all partitions.
- */
-static int xpram_save_checksums(void)
-{
-	unsigned long mem_page;
-	int rc, i;
-
-	rc = 0;
-	mem_page = (unsigned long) __get_free_page(GFP_KERNEL);
-	if (!mem_page)
-		return -ENOMEM;
-	for (i = 0; i < xpram_devs; i++) {
-		rc = xpram_page_in(mem_page, xpram_devices[i].offset);
-		if (rc)
-			goto fail;
-		xpram_devices[i].csum = csum_partial((const void *) mem_page,
-						     PAGE_SIZE, 0);
-	}
-fail:
-	free_page(mem_page);
-	return rc ? -ENXIO : 0;
-}
-
-/*
- * Verify checksums for all partitions.
- */
-static int xpram_validate_checksums(void)
-{
-	unsigned long mem_page;
-	unsigned int csum;
-	int rc, i;
-
-	rc = 0;
-	mem_page = (unsigned long) __get_free_page(GFP_KERNEL);
-	if (!mem_page)
-		return -ENOMEM;
-	for (i = 0; i < xpram_devs; i++) {
-		rc = xpram_page_in(mem_page, xpram_devices[i].offset);
-		if (rc)
-			goto fail;
-		csum = csum_partial((const void *) mem_page, PAGE_SIZE, 0);
-		if (xpram_devices[i].csum != csum) {
-			rc = -EINVAL;
-			goto fail;
-		}
-	}
-fail:
-	free_page(mem_page);
-	return rc ? -ENXIO : 0;
-}
-
 /*
  * Resume failed: Print error message and call panic.
  */
@@ -458,21 +404,10 @@ static int xpram_restore(struct device *dev)
 		xpram_resume_error("xpram disappeared");
 	if (xpram_pages != xpram_highest_page_index() + 1)
 		xpram_resume_error("Size of xpram changed");
-	if (xpram_validate_checksums())
-		xpram_resume_error("Data of xpram changed");
 	return 0;
 }
 
-/*
- * Save necessary state in suspend.
- */
-static int xpram_freeze(struct device *dev)
-{
-	return xpram_save_checksums();
-}
-
 static struct dev_pm_ops xpram_pm_ops = {
-	.freeze		= xpram_freeze,
 	.restore	= xpram_restore,
 };
 

drivers/s390/char/Kconfig

@@ -82,6 +82,16 @@ config SCLP_CPI
 	  You should only select this option if you know what you are doing,
 	  need this feature and intend to run your kernel in LPAR.
 
+config SCLP_ASYNC
+	tristate "Support for Call Home via Asynchronous SCLP Records"
+	depends on S390
+	help
+	  This option enables the call home function, which is able to inform
+	  the service element and connected organisations about a kernel panic.
+	  You should only select this option if you know what you are doing,
+	  want for inform other people about your kernel panics,
+	  need this feature and intend to run your kernel in LPAR.
+
 config S390_TAPE
 	tristate "S/390 tape device support"
 	depends on CCW

drivers/s390/char/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_SCLP_TTY) += sclp_tty.o
 obj-$(CONFIG_SCLP_CONSOLE) += sclp_con.o
 obj-$(CONFIG_SCLP_VT220_TTY) += sclp_vt220.o
 obj-$(CONFIG_SCLP_CPI) += sclp_cpi.o
+obj-$(CONFIG_SCLP_ASYNC) += sclp_async.o
 
 obj-$(CONFIG_ZVM_WATCHDOG) += vmwatchdog.o
 obj-$(CONFIG_VMLOGRDR) += vmlogrdr.o

drivers/s390/char/monreader.c

@@ -581,7 +581,7 @@ static int __init mon_init(void)
 	monreader_device->release = (void (*)(struct device *))kfree;
 	rc = device_register(monreader_device);
 	if (rc) {
-		kfree(monreader_device);
+		put_device(monreader_device);
 		goto out_driver;
 	}
 

drivers/s390/char/sclp.h

@@ -27,6 +27,7 @@
 #define EVTYP_VT220MSG		0x1A
 #define EVTYP_CONFMGMDATA	0x04
 #define EVTYP_SDIAS		0x1C
+#define EVTYP_ASYNC		0x0A
 
 #define EVTYP_OPCMD_MASK	0x80000000
 #define EVTYP_MSG_MASK		0x40000000
@@ -38,6 +39,7 @@
 #define EVTYP_VT220MSG_MASK	0x00000040
 #define EVTYP_CONFMGMDATA_MASK	0x10000000
 #define EVTYP_SDIAS_MASK	0x00000010
+#define EVTYP_ASYNC_MASK	0x00400000
 
 #define GNRLMSGFLGS_DOM		0x8000
 #define GNRLMSGFLGS_SNDALRM	0x4000
@@ -85,12 +87,12 @@ struct sccb_header {
 } __attribute__((packed));
 
 extern u64 sclp_facilities;
-
 #define SCLP_HAS_CHP_INFO	(sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG	(sclp_facilities & 0x2000000000000000ULL)
 #define SCLP_HAS_CPU_INFO	(sclp_facilities & 0x0800000000000000ULL)
 #define SCLP_HAS_CPU_RECONFIG	(sclp_facilities & 0x0400000000000000ULL)
 
+
 struct gds_subvector {
 	u8	length;
 	u8	key;

drivers/s390/char/sclp_async.c

@@ -0,0 +1,224 @@
+/*
+ * Enable Asynchronous Notification via SCLP.
+ *
+ * Copyright IBM Corp. 2009
+ * Author(s): Hans-Joachim Picht <hans@linux.vnet.ibm.com>
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/stat.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/kmod.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/sysctl.h>
+#include <linux/utsname.h>
+#include "sclp.h"
+
+static int callhome_enabled;
+static struct sclp_req *request;
+static struct sclp_async_sccb *sccb;
+static int sclp_async_send_wait(char *message);
+static struct ctl_table_header *callhome_sysctl_header;
+static DEFINE_SPINLOCK(sclp_async_lock);
+static char nodename[64];
+#define SCLP_NORMAL_WRITE	0x00
+
+struct async_evbuf {
+	struct evbuf_header header;
+	u64 reserved;
+	u8 rflags;
+	u8 empty;
+	u8 rtype;
+	u8 otype;
+	char comp_id[12];
+	char data[3000]; /* there is still some space left */
+} __attribute__((packed));
+
+struct sclp_async_sccb {
+	struct sccb_header header;
+	struct async_evbuf evbuf;
+} __attribute__((packed));
+
+static struct sclp_register sclp_async_register = {
+	.send_mask = EVTYP_ASYNC_MASK,
+};
+
+static int call_home_on_panic(struct notifier_block *self,
+			      unsigned long event, void *data)
+{
+		strncat(data, nodename, strlen(nodename));
+		sclp_async_send_wait(data);
+		return NOTIFY_DONE;
+}
+
+static struct notifier_block call_home_panic_nb = {
+	.notifier_call = call_home_on_panic,
+	.priority = INT_MAX,
+};
+
+static int proc_handler_callhome(ctl_table *ctl, int write, struct file *filp,
+				 void __user *buffer, size_t *count,
+				 loff_t *ppos)
+{
+	unsigned long val;
+	int len, rc;
+	char buf[2];
+
+	if (!*count | (*ppos && !write)) {
+		*count = 0;
+		return 0;
+	}
+	if (!write) {
+		len =  sprintf(buf, "%d\n", callhome_enabled);
+		buf[len] = '\0';
+		rc = copy_to_user(buffer, buf, sizeof(buf));
+		if (rc != 0)
+			return -EFAULT;
+	} else {
+		len = *count;
+		rc = copy_from_user(buf, buffer, sizeof(buf));
+		if (rc != 0)
+			return -EFAULT;
+		if (strict_strtoul(buf, 0, &val) != 0)
+			return -EINVAL;
+		if (val != 0 && val != 1)
+			return -EINVAL;
+		callhome_enabled = val;
+	}
+	*count = len;
+	*ppos += len;
+	return 0;
+}
+
+static struct ctl_table callhome_table[] = {
+	{
+		.procname	= "callhome",
+		.mode		= 0644,
+		.proc_handler	= &proc_handler_callhome,
+	},
+	{ .ctl_name = 0 }
+};
+
+static struct ctl_table kern_dir_table[] = {
+	{
+		.ctl_name	= CTL_KERN,
+		.procname	= "kernel",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= callhome_table,
+	},
+	{ .ctl_name = 0 }
+};
+
+/*
+ * Function used to transfer asynchronous notification
+ * records which waits for send completion
+ */
+static int sclp_async_send_wait(char *message)
+{
+	struct async_evbuf *evb;
+	int rc;
+	unsigned long flags;
+
+	if (!callhome_enabled)
+		return 0;
+	sccb->evbuf.header.type = EVTYP_ASYNC;
+	sccb->evbuf.rtype = 0xA5;
+	sccb->evbuf.otype = 0x00;
+	evb = &sccb->evbuf;
+	request->command = SCLP_CMDW_WRITE_EVENT_DATA;
+	request->sccb = sccb;
+	request->status = SCLP_REQ_FILLED;
+	strncpy(sccb->evbuf.data, message, sizeof(sccb->evbuf.data));
+	/*
+	 * Retain Queue
+	 * e.g. 5639CC140 500 Red Hat RHEL5 Linux for zSeries (RHEL AS)
+	 */
+	strncpy(sccb->evbuf.comp_id, "000000000", sizeof(sccb->evbuf.comp_id));
+	sccb->evbuf.header.length = sizeof(sccb->evbuf);
+	sccb->header.length = sizeof(sccb->evbuf) + sizeof(sccb->header);
+	sccb->header.function_code = SCLP_NORMAL_WRITE;
+	rc = sclp_add_request(request);
+	if (rc)
+		return rc;
+	spin_lock_irqsave(&sclp_async_lock, flags);
+	while (request->status != SCLP_REQ_DONE &&
+		request->status != SCLP_REQ_FAILED) {
+		 sclp_sync_wait();
+	}
+	spin_unlock_irqrestore(&sclp_async_lock, flags);
+	if (request->status != SCLP_REQ_DONE)
+		return -EIO;
+	rc = ((struct sclp_async_sccb *)
+	       request->sccb)->header.response_code;
+	if (rc != 0x0020)
+		return -EIO;
+	if (evb->header.flags != 0x80)
+		return -EIO;
+	return rc;
+}
+
+static int __init sclp_async_init(void)
+{
+	int rc;
+
+	rc = sclp_register(&sclp_async_register);
+	if (rc)
+		return rc;
+	callhome_sysctl_header = register_sysctl_table(kern_dir_table);
+	if (!callhome_sysctl_header) {
+		rc = -ENOMEM;
+		goto out_sclp;
+	}
+	if (!(sclp_async_register.sclp_receive_mask & EVTYP_ASYNC_MASK)) {
+		rc = -EOPNOTSUPP;
+		goto out_sclp;
+	}
+	rc = -ENOMEM;
+	request = kzalloc(sizeof(struct sclp_req), GFP_KERNEL);
+	if (!request)
+		goto out_sys;
+	sccb = (struct sclp_async_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	if (!sccb)
+		goto out_mem;
+	rc =  atomic_notifier_chain_register(&panic_notifier_list,
+					     &call_home_panic_nb);
+	if (rc)
+		goto out_mem;
+
+	strncpy(nodename, init_utsname()->nodename, 64);
+	return 0;
+
+out_mem:
+	kfree(request);
+	free_page((unsigned long) sccb);
+out_sys:
+	unregister_sysctl_table(callhome_sysctl_header);
+out_sclp:
+	sclp_unregister(&sclp_async_register);
+	return rc;
+
+}
+module_init(sclp_async_init);
+
+static void __exit sclp_async_exit(void)
+{
+	atomic_notifier_chain_unregister(&panic_notifier_list,
+					 &call_home_panic_nb);
+	unregister_sysctl_table(callhome_sysctl_header);
+	sclp_unregister(&sclp_async_register);
+	free_page((unsigned long) sccb);
+	kfree(request);
+}
+module_exit(sclp_async_exit);
+
+MODULE_AUTHOR("Copyright IBM Corp. 2009");
+MODULE_AUTHOR("Hans-Joachim Picht <hans@linux.vnet.ibm.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SCLP Asynchronous Notification Records");

drivers/s390/char/tape_34xx.c

@@ -8,7 +8,7 @@
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
-#define KMSG_COMPONENT "tape"
+#define KMSG_COMPONENT "tape_34xx"
 
 #include <linux/module.h>
 #include <linux/init.h>

drivers/s390/char/tape_3590.c

@@ -8,7 +8,7 @@
  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>
  */
 
-#define KMSG_COMPONENT "tape"
+#define KMSG_COMPONENT "tape_3590"
 
 #include <linux/module.h>
 #include <linux/init.h>
@@ -39,8 +39,6 @@ EXPORT_SYMBOL(TAPE_DBF_AREA);
  * - Read Alternate:		 implemented
  *******************************************************************/
 
-#define KMSG_COMPONENT "tape"
-
 static const char *tape_3590_msg[TAPE_3590_MAX_MSG] = {
 	[0x00] = "",
 	[0x10] = "Lost Sense",

drivers/s390/char/tape_block.c

@@ -302,8 +302,6 @@ tapeblock_revalidate_disk(struct gendisk *disk)
 	if (!device->blk_data.medium_changed)
 		return 0;
 
-	dev_info(&device->cdev->dev, "Determining the size of the recorded "
-		"area...\n");
 	rc = tape_mtop(device, MTFSFM, 1);
 	if (rc)
 		return rc;
@@ -312,6 +310,8 @@ tapeblock_revalidate_disk(struct gendisk *disk)
 	if (rc < 0)
 		return rc;
 
+	pr_info("%s: Determining the size of the recorded area...\n",
+		dev_name(&device->cdev->dev));
 	DBF_LH(3, "Image file ends at %d\n", rc);
 	nr_of_blks = rc;
 
@@ -330,8 +330,8 @@ tapeblock_revalidate_disk(struct gendisk *disk)
 	device->bof = rc;
 	nr_of_blks -= rc;
 
-	dev_info(&device->cdev->dev, "The size of the recorded area is %i "
-		"blocks\n", nr_of_blks);
+	pr_info("%s: The size of the recorded area is %i blocks\n",
+		dev_name(&device->cdev->dev), nr_of_blks);
 	set_capacity(device->blk_data.disk,
 		nr_of_blks*(TAPEBLOCK_HSEC_SIZE/512));
 
@@ -366,8 +366,8 @@ tapeblock_open(struct block_device *bdev, fmode_t mode)
 
 	if (device->required_tapemarks) {
 		DBF_EVENT(2, "TBLOCK: missing tapemarks\n");
-		dev_warn(&device->cdev->dev, "Opening the tape failed because"
-			" of missing end-of-file marks\n");
+		pr_warning("%s: Opening the tape failed because of missing "
+			   "end-of-file marks\n", dev_name(&device->cdev->dev));
 		rc = -EPERM;
 		goto put_device;
 	}

drivers/s390/char/tape_core.c

@@ -214,13 +214,15 @@ tape_med_state_set(struct tape_device *device, enum tape_medium_state newstate)
 	switch(newstate){
 	case MS_UNLOADED:
 		device->tape_generic_status |= GMT_DR_OPEN(~0);
-		dev_info(&device->cdev->dev, "The tape cartridge has been "
-			"successfully unloaded\n");
+		if (device->medium_state == MS_LOADED)
+			pr_info("%s: The tape cartridge has been successfully "
+				"unloaded\n", dev_name(&device->cdev->dev));
 		break;
 	case MS_LOADED:
 		device->tape_generic_status &= ~GMT_DR_OPEN(~0);
-		dev_info(&device->cdev->dev, "A tape cartridge has been "
-			"mounted\n");
+		if (device->medium_state == MS_UNLOADED)
+			pr_info("%s: A tape cartridge has been mounted\n",
+				dev_name(&device->cdev->dev));
 		break;
 	default:
 		// print nothing
@@ -358,11 +360,11 @@ tape_generic_online(struct tape_device *device,
 
 out_char:
 	tapechar_cleanup_device(device);
+out_minor:
+	tape_remove_minor(device);
 out_discipline:
 	device->discipline->cleanup_device(device);
 	device->discipline = NULL;
-out_minor:
-	tape_remove_minor(device);
 out:
 	module_put(discipline->owner);
 	return rc;
@@ -654,8 +656,8 @@ tape_generic_remove(struct ccw_device *cdev)
 			 */
 			DBF_EVENT(3, "(%08x): Drive in use vanished!\n",
 				device->cdev_id);
-			dev_warn(&device->cdev->dev, "A tape unit was detached"
-				" while in use\n");
+			pr_warning("%s: A tape unit was detached while in "
+				   "use\n", dev_name(&device->cdev->dev));
 			tape_state_set(device, TS_NOT_OPER);
 			__tape_discard_requests(device);
 			spin_unlock_irq(get_ccwdev_lock(device->cdev));

drivers/s390/char/tape_std.c

@@ -68,7 +68,7 @@ tape_std_assign(struct tape_device *device)
 	 * to another host (actually this shouldn't happen but it does).
 	 * So we set up a timeout for this call.
 	 */
-	init_timer(&timeout);
+	init_timer_on_stack(&timeout);
 	timeout.function = tape_std_assign_timeout;
 	timeout.data     = (unsigned long) request;
 	timeout.expires  = jiffies + 2 * HZ;

drivers/s390/char/vmlogrdr.c

@@ -765,8 +765,10 @@ static int vmlogrdr_register_device(struct vmlogrdr_priv_t *priv)
 	} else
 		return -ENOMEM;
 	ret = device_register(dev);
-	if (ret)
+	if (ret) {
+		put_device(dev);
 		return ret;
+	}
 
 	ret = sysfs_create_group(&dev->kobj, &vmlogrdr_attr_group);
 	if (ret) {

drivers/s390/char/vmur.c

@@ -1026,9 +1026,15 @@ static int __init ur_init(void)
 
 	debug_set_level(vmur_dbf, 6);
 
+	vmur_class = class_create(THIS_MODULE, "vmur");
+	if (IS_ERR(vmur_class)) {
+		rc = PTR_ERR(vmur_class);
+		goto fail_free_dbf;
+	}
+
 	rc = ccw_driver_register(&ur_driver);
 	if (rc)
-		goto fail_free_dbf;
+		goto fail_class_destroy;
 
 	rc = alloc_chrdev_region(&dev, 0, NUM_MINORS, "vmur");
 	if (rc) {
@@ -1038,18 +1044,13 @@ static int __init ur_init(void)
 	}
 	ur_first_dev_maj_min = MKDEV(MAJOR(dev), 0);
 
-	vmur_class = class_create(THIS_MODULE, "vmur");
-	if (IS_ERR(vmur_class)) {
-		rc = PTR_ERR(vmur_class);
-		goto fail_unregister_region;
-	}
 	pr_info("%s loaded.\n", ur_banner);
 	return 0;
 
-fail_unregister_region:
-	unregister_chrdev_region(ur_first_dev_maj_min, NUM_MINORS);
 fail_unregister_driver:
 	ccw_driver_unregister(&ur_driver);
+fail_class_destroy:
+	class_destroy(vmur_class);
 fail_free_dbf:
 	debug_unregister(vmur_dbf);
 	return rc;
@@ -1057,9 +1058,9 @@ fail_free_dbf:
 
 static void __exit ur_exit(void)
 {
-	class_destroy(vmur_class);
 	unregister_chrdev_region(ur_first_dev_maj_min, NUM_MINORS);
 	ccw_driver_unregister(&ur_driver);
+	class_destroy(vmur_class);
 	debug_unregister(vmur_dbf);
 	pr_info("%s unloaded.\n", ur_banner);
 }

drivers/s390/char/zcore.c

@@ -275,7 +275,7 @@ struct zcore_header {
 	u32 num_pages;
 	u32 pad1;
 	u64 tod;
-	cpuid_t cpu_id;
+	struct cpuid cpu_id;
 	u32 arch_id;
 	u32 volnr;
 	u32 build_arch;

drivers/s390/cio/Makefile

@@ -2,7 +2,7 @@
 # Makefile for the S/390 common i/o drivers
 #
 
-obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o scsw.o \
+obj-y += airq.o blacklist.o chsc.o cio.o css.o chp.o idset.o isc.o \
 	fcx.o itcw.o crw.o
 ccw_device-objs += device.o device_fsm.o device_ops.o
 ccw_device-objs += device_id.o device_pgid.o device_status.o

drivers/s390/cio/chp.c

@@ -417,7 +417,8 @@ int chp_new(struct chp_id chpid)
 	if (ret) {
 		CIO_MSG_EVENT(0, "Could not register chp%x.%02x: %d\n",
 			      chpid.cssid, chpid.id, ret);
-		goto out_free;
+		put_device(&chp->dev);
+		goto out;
 	}
 	ret = sysfs_create_group(&chp->dev.kobj, &chp_attr_group);
 	if (ret) {

drivers/s390/cio/chsc.h

@@ -37,29 +37,6 @@ struct channel_path_desc {
 
 struct channel_path;
 
-struct css_general_char {
-	u64 : 12;
-	u32 dynio : 1;	 /* bit 12 */
-	u32 : 28;
-	u32 aif : 1;     /* bit 41 */
-	u32 : 3;
-	u32 mcss : 1;    /* bit 45 */
-	u32 fcs : 1;	 /* bit 46 */
-	u32 : 1;
-	u32 ext_mb : 1;  /* bit 48 */
-	u32 : 7;
-	u32 aif_tdd : 1; /* bit 56 */
-	u32 : 1;
-	u32 qebsm : 1;   /* bit 58 */
-	u32 : 8;
-	u32 aif_osa : 1; /* bit 67 */
-	u32 : 14;
-	u32 cib : 1;	 /* bit 82 */
-	u32 : 5;
-	u32 fcx : 1;	 /* bit 88 */
-	u32 : 7;
-}__attribute__((packed));
-
 struct css_chsc_char {
 	u64 res;
 	u64 : 20;
@@ -72,7 +49,6 @@ struct css_chsc_char {
 	u32 : 19;
 }__attribute__((packed));
 
-extern struct css_general_char css_general_characteristics;
 extern struct css_chsc_char css_chsc_characteristics;
 
 struct chsc_ssd_info {

drivers/s390/cio/cio.c

@@ -139,12 +139,11 @@ cio_start_key (struct subchannel *sch,	/* subchannel structure */
 	       __u8 lpm,		/* logical path mask */
 	       __u8 key)                /* storage key */
 {
-	char dbf_txt[15];
 	int ccode;
 	union orb *orb;
 
-	CIO_TRACE_EVENT(4, "stIO");
-	CIO_TRACE_EVENT(4, dev_name(&sch->dev));
+	CIO_TRACE_EVENT(5, "stIO");
+	CIO_TRACE_EVENT(5, dev_name(&sch->dev));
 
 	orb = &to_io_private(sch)->orb;
 	memset(orb, 0, sizeof(union orb));
@@ -169,8 +168,7 @@ cio_start_key (struct subchannel *sch,	/* subchannel structure */
 	ccode = ssch(sch->schid, orb);
 
 	/* process condition code */
-	sprintf(dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT(4, dbf_txt);
+	CIO_HEX_EVENT(5, &ccode, sizeof(ccode));
 
 	switch (ccode) {
 	case 0:
@@ -201,16 +199,14 @@ cio_start (struct subchannel *sch, struct ccw1 *cpa, __u8 lpm)
 int
 cio_resume (struct subchannel *sch)
 {
-	char dbf_txt[15];
 	int ccode;
 
-	CIO_TRACE_EVENT (4, "resIO");
+	CIO_TRACE_EVENT(4, "resIO");
 	CIO_TRACE_EVENT(4, dev_name(&sch->dev));
 
 	ccode = rsch (sch->schid);
 
-	sprintf (dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT (4, dbf_txt);
+	CIO_HEX_EVENT(4, &ccode, sizeof(ccode));
 
 	switch (ccode) {
 	case 0:
@@ -235,13 +231,12 @@ cio_resume (struct subchannel *sch)
 int
 cio_halt(struct subchannel *sch)
 {
-	char dbf_txt[15];
 	int ccode;
 
 	if (!sch)
 		return -ENODEV;
 
-	CIO_TRACE_EVENT (2, "haltIO");
+	CIO_TRACE_EVENT(2, "haltIO");
 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));
 
 	/*
@@ -249,8 +244,7 @@ cio_halt(struct subchannel *sch)
 	 */
 	ccode = hsch (sch->schid);
 
-	sprintf (dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT (2, dbf_txt);
+	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));
 
 	switch (ccode) {
 	case 0:
@@ -270,13 +264,12 @@ cio_halt(struct subchannel *sch)
 int
 cio_clear(struct subchannel *sch)
 {
-	char dbf_txt[15];
 	int ccode;
 
 	if (!sch)
 		return -ENODEV;
 
-	CIO_TRACE_EVENT (2, "clearIO");
+	CIO_TRACE_EVENT(2, "clearIO");
 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));
 
 	/*
@@ -284,8 +277,7 @@ cio_clear(struct subchannel *sch)
 	 */
 	ccode = csch (sch->schid);
 
-	sprintf (dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT (2, dbf_txt);
+	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));
 
 	switch (ccode) {
 	case 0:
@@ -306,19 +298,17 @@ cio_clear(struct subchannel *sch)
 int
 cio_cancel (struct subchannel *sch)
 {
-	char dbf_txt[15];
 	int ccode;
 
 	if (!sch)
 		return -ENODEV;
 
-	CIO_TRACE_EVENT (2, "cancelIO");
+	CIO_TRACE_EVENT(2, "cancelIO");
 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));
 
 	ccode = xsch (sch->schid);
 
-	sprintf (dbf_txt, "ccode:%d", ccode);
-	CIO_TRACE_EVENT (2, dbf_txt);
+	CIO_HEX_EVENT(2, &ccode, sizeof(ccode));
 
 	switch (ccode) {
 	case 0:		/* success */
@@ -429,11 +419,10 @@ EXPORT_SYMBOL_GPL(cio_update_schib);
  */
 int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
 {
-	char dbf_txt[15];
 	int retry;
 	int ret;
 
-	CIO_TRACE_EVENT (2, "ensch");
+	CIO_TRACE_EVENT(2, "ensch");
 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));
 
 	if (sch_is_pseudo_sch(sch))
@@ -460,8 +449,7 @@ int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
 		} else
 			break;
 	}
-	sprintf (dbf_txt, "ret:%d", ret);
-	CIO_TRACE_EVENT (2, dbf_txt);
+	CIO_HEX_EVENT(2, &ret, sizeof(ret));
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cio_enable_subchannel);
@@ -472,11 +460,10 @@ EXPORT_SYMBOL_GPL(cio_enable_subchannel);
  */
 int cio_disable_subchannel(struct subchannel *sch)
 {
-	char dbf_txt[15];
 	int retry;
 	int ret;
 
-	CIO_TRACE_EVENT (2, "dissch");
+	CIO_TRACE_EVENT(2, "dissch");
 	CIO_TRACE_EVENT(2, dev_name(&sch->dev));
 
 	if (sch_is_pseudo_sch(sch))
@@ -495,8 +482,7 @@ int cio_disable_subchannel(struct subchannel *sch)
 		} else
 			break;
 	}
-	sprintf (dbf_txt, "ret:%d", ret);
-	CIO_TRACE_EVENT (2, dbf_txt);
+	CIO_HEX_EVENT(2, &ret, sizeof(ret));
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cio_disable_subchannel);
@@ -578,11 +564,6 @@ int cio_validate_subchannel(struct subchannel *sch, struct subchannel_id schid)
 			goto out;
 	}
 	mutex_init(&sch->reg_mutex);
-	/* Set a name for the subchannel */
-	if (cio_is_console(schid))
-		sch->dev.init_name = cio_get_console_sch_name(schid);
-	else
-		dev_set_name(&sch->dev, "0.%x.%04x", schid.ssid, schid.sch_no);
 
 	/*
 	 * The first subchannel that is not-operational (ccode==3)
@@ -686,7 +667,6 @@ void __irq_entry do_IRQ(struct pt_regs *regs)
 
 #ifdef CONFIG_CCW_CONSOLE
 static struct subchannel console_subchannel;
-static char console_sch_name[10] = "0.x.xxxx";
 static struct io_subchannel_private console_priv;
 static int console_subchannel_in_use;
 
@@ -873,12 +853,6 @@ cio_get_console_subchannel(void)
 	return &console_subchannel;
 }
 
-const char *cio_get_console_sch_name(struct subchannel_id schid)
-{
-	snprintf(console_sch_name, 10, "0.%x.%04x", schid.ssid, schid.sch_no);
-	return (const char *)console_sch_name;
-}
-
 #endif
 static int
 __disable_subchannel_easy(struct subchannel_id schid, struct schib *schib)

drivers/s390/cio/cio.h

@@ -133,15 +133,11 @@ extern int cio_is_console(struct subchannel_id);
 extern struct subchannel *cio_get_console_subchannel(void);
 extern spinlock_t * cio_get_console_lock(void);
 extern void *cio_get_console_priv(void);
-extern const char *cio_get_console_sch_name(struct subchannel_id schid);
-extern const char *cio_get_console_cdev_name(struct subchannel *sch);
 #else
 #define cio_is_console(schid) 0
 #define cio_get_console_subchannel() NULL
 #define cio_get_console_lock() NULL
 #define cio_get_console_priv() NULL
-#define cio_get_console_sch_name(schid) NULL
-#define cio_get_console_cdev_name(sch) NULL
 #endif
 
 #endif

drivers/s390/cio/css.c

@@ -151,18 +151,6 @@ css_alloc_subchannel(struct subchannel_id schid)
 	return sch;
 }
 
-static void
-css_free_subchannel(struct subchannel *sch)
-{
-	if (sch) {
-		/* Reset intparm to zeroes. */
-		sch->config.intparm = 0;
-		cio_commit_config(sch);
-		kfree(sch->lock);
-		kfree(sch);
-	}
-}
-
 static void
 css_subchannel_release(struct device *dev)
 {
@@ -170,6 +158,9 @@ css_subchannel_release(struct device *dev)
 
 	sch = to_subchannel(dev);
 	if (!cio_is_console(sch->schid)) {
+		/* Reset intparm to zeroes. */
+		sch->config.intparm = 0;
+		cio_commit_config(sch);
 		kfree(sch->lock);
 		kfree(sch);
 	}
@@ -180,6 +171,8 @@ static int css_sch_device_register(struct subchannel *sch)
 	int ret;
 
 	mutex_lock(&sch->reg_mutex);
+	dev_set_name(&sch->dev, "0.%x.%04x", sch->schid.ssid,
+		     sch->schid.sch_no);
 	ret = device_register(&sch->dev);
 	mutex_unlock(&sch->reg_mutex);
 	return ret;
@@ -327,7 +320,7 @@ int css_probe_device(struct subchannel_id schid)
 		return PTR_ERR(sch);
 	ret = css_register_subchannel(sch);
 	if (ret)
-		css_free_subchannel(sch);
+		put_device(&sch->dev);
 	return ret;
 }
 
@@ -644,7 +637,10 @@ __init_channel_subsystem(struct subchannel_id schid, void *data)
 	 * not working) so we do it now. This is true e.g. for the
 	 * console subchannel.
 	 */
-	css_register_subchannel(sch);
+	if (css_register_subchannel(sch)) {
+		if (!cio_is_console(schid))
+			put_device(&sch->dev);
+	}
 	return 0;
 }
 
@@ -661,8 +657,8 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high)
 		css->global_pgid.pgid_high.cpu_addr = 0;
 #endif
 	}
-	css->global_pgid.cpu_id = ((cpuid_t *) __LC_CPUID)->ident;
-	css->global_pgid.cpu_model = ((cpuid_t *) __LC_CPUID)->machine;
+	css->global_pgid.cpu_id = S390_lowcore.cpu_id.ident;
+	css->global_pgid.cpu_model = S390_lowcore.cpu_id.machine;
 	css->global_pgid.tod_high = tod_high;
 
 }
@@ -920,8 +916,10 @@ init_channel_subsystem (void)
 				goto out_device;
 		}
 		ret = device_register(&css->pseudo_subchannel->dev);
-		if (ret)
+		if (ret) {
+			put_device(&css->pseudo_subchannel->dev);
 			goto out_file;
+		}
 	}
 	ret = register_reboot_notifier(&css_reboot_notifier);
 	if (ret)

drivers/s390/cio/device.c

@@ -307,8 +307,11 @@ int ccw_device_is_orphan(struct ccw_device *cdev)
 
 static void ccw_device_unregister(struct ccw_device *cdev)
 {
-	if (test_and_clear_bit(1, &cdev->private->registered))
+	if (test_and_clear_bit(1, &cdev->private->registered)) {
 		device_del(&cdev->dev);
+		/* Release reference from device_initialize(). */
+		put_device(&cdev->dev);
+	}
 }
 
 static void ccw_device_remove_orphan_cb(struct work_struct *work)
@@ -319,7 +322,6 @@ static void ccw_device_remove_orphan_cb(struct work_struct *work)
 	priv = container_of(work, struct ccw_device_private, kick_work);
 	cdev = priv->cdev;
 	ccw_device_unregister(cdev);
-	put_device(&cdev->dev);
 	/* Release cdev reference for workqueue processing. */
 	put_device(&cdev->dev);
 }
@@ -333,15 +335,15 @@ ccw_device_remove_disconnected(struct ccw_device *cdev)
 	 * Forced offline in disconnected state means
 	 * 'throw away device'.
 	 */
-	/* Get cdev reference for workqueue processing. */
-	if (!get_device(&cdev->dev))
-		return;
 	if (ccw_device_is_orphan(cdev)) {
 		/*
 		 * Deregister ccw device.
 		 * Unfortunately, we cannot do this directly from the
 		 * attribute method.
 		 */
+		/* Get cdev reference for workqueue processing. */
+		if (!get_device(&cdev->dev))
+			return;
 		spin_lock_irqsave(cdev->ccwlock, flags);
 		cdev->private->state = DEV_STATE_NOT_OPER;
 		spin_unlock_irqrestore(cdev->ccwlock, flags);
@@ -380,30 +382,34 @@ int ccw_device_set_offline(struct ccw_device *cdev)
 	}
 	cdev->online = 0;
 	spin_lock_irq(cdev->ccwlock);
-	ret = ccw_device_offline(cdev);
-	if (ret == -ENODEV) {
-		if (cdev->private->state != DEV_STATE_NOT_OPER) {
-			cdev->private->state = DEV_STATE_OFFLINE;
-			dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
-		}
+	/* Wait until a final state or DISCONNECTED is reached */
+	while (!dev_fsm_final_state(cdev) &&
+	       cdev->private->state != DEV_STATE_DISCONNECTED) {
 		spin_unlock_irq(cdev->ccwlock);
-		/* Give up reference from ccw_device_set_online(). */
-		put_device(&cdev->dev);
-		return ret;
+		wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
+			   cdev->private->state == DEV_STATE_DISCONNECTED));
+		spin_lock_irq(cdev->ccwlock);
 	}
+	ret = ccw_device_offline(cdev);
+	if (ret)
+		goto error;
 	spin_unlock_irq(cdev->ccwlock);
-	if (ret == 0) {
-		wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
-		/* Give up reference from ccw_device_set_online(). */
-		put_device(&cdev->dev);
-	} else {
-		CIO_MSG_EVENT(0, "ccw_device_offline returned %d, "
-			      "device 0.%x.%04x\n",
-			      ret, cdev->private->dev_id.ssid,
-			      cdev->private->dev_id.devno);
-		cdev->online = 1;
-	}
-	return ret;
+	wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
+		   cdev->private->state == DEV_STATE_DISCONNECTED));
+	/* Give up reference from ccw_device_set_online(). */
+	put_device(&cdev->dev);
+	return 0;
+
+error:
+	CIO_MSG_EVENT(0, "ccw_device_offline returned %d, device 0.%x.%04x\n",
+		      ret, cdev->private->dev_id.ssid,
+		      cdev->private->dev_id.devno);
+	cdev->private->state = DEV_STATE_OFFLINE;
+	dev_fsm_event(cdev, DEV_EVENT_NOTOPER);
+	spin_unlock_irq(cdev->ccwlock);
+	/* Give up reference from ccw_device_set_online(). */
+	put_device(&cdev->dev);
+	return -ENODEV;
 }
 
 /**
@@ -421,6 +427,7 @@ int ccw_device_set_offline(struct ccw_device *cdev)
 int ccw_device_set_online(struct ccw_device *cdev)
 {
 	int ret;
+	int ret2;
 
 	if (!cdev)
 		return -ENODEV;
@@ -444,28 +451,53 @@ int ccw_device_set_online(struct ccw_device *cdev)
 		put_device(&cdev->dev);
 		return ret;
 	}
-	if (cdev->private->state != DEV_STATE_ONLINE) {
+	spin_lock_irq(cdev->ccwlock);
+	/* Check if online processing was successful */
+	if ((cdev->private->state != DEV_STATE_ONLINE) &&
+	    (cdev->private->state != DEV_STATE_W4SENSE)) {
+		spin_unlock_irq(cdev->ccwlock);
 		/* Give up online reference since onlining failed. */
 		put_device(&cdev->dev);
 		return -ENODEV;
 	}
-	if (!cdev->drv->set_online || cdev->drv->set_online(cdev) == 0) {
-		cdev->online = 1;
-		return 0;
-	}
+	spin_unlock_irq(cdev->ccwlock);
+	if (cdev->drv->set_online)
+		ret = cdev->drv->set_online(cdev);
+	if (ret)
+		goto rollback;
+	cdev->online = 1;
+	return 0;
+
+rollback:
 	spin_lock_irq(cdev->ccwlock);
-	ret = ccw_device_offline(cdev);
+	/* Wait until a final state or DISCONNECTED is reached */
+	while (!dev_fsm_final_state(cdev) &&
+	       cdev->private->state != DEV_STATE_DISCONNECTED) {
+		spin_unlock_irq(cdev->ccwlock);
+		wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
+			   cdev->private->state == DEV_STATE_DISCONNECTED));
+		spin_lock_irq(cdev->ccwlock);
+	}
+	ret2 = ccw_device_offline(cdev);
+	if (ret2)
+		goto error;
 	spin_unlock_irq(cdev->ccwlock);
-	if (ret == 0)
-		wait_event(cdev->private->wait_q, dev_fsm_final_state(cdev));
-	else
-		CIO_MSG_EVENT(0, "ccw_device_offline returned %d, "
-			      "device 0.%x.%04x\n",
-			      ret, cdev->private->dev_id.ssid,
-			      cdev->private->dev_id.devno);
+	wait_event(cdev->private->wait_q, (dev_fsm_final_state(cdev) ||
+		   cdev->private->state == DEV_STATE_DISCONNECTED));
 	/* Give up online reference since onlining failed. */
 	put_device(&cdev->dev);
-	return (ret == 0) ? -ENODEV : ret;
+	return ret;
+
+error:
+	CIO_MSG_EVENT(0, "rollback ccw_device_offline returned %d, "
+		      "device 0.%x.%04x\n",
+		      ret2, cdev->private->dev_id.ssid,
+		      cdev->private->dev_id.devno);
+	cdev->private->state = DEV_STATE_OFFLINE;
+	spin_unlock_irq(cdev->ccwlock);
+	/* Give up online reference since onlining failed. */
+	put_device(&cdev->dev);
+	return ret;
 }
 
 static int online_store_handle_offline(struct ccw_device *cdev)
@@ -637,8 +669,12 @@ static int ccw_device_register(struct ccw_device *cdev)
 	int ret;
 
 	dev->bus = &ccw_bus_type;
-
-	if ((ret = device_add(dev)))
+	ret = dev_set_name(&cdev->dev, "0.%x.%04x", cdev->private->dev_id.ssid,
+			   cdev->private->dev_id.devno);
+	if (ret)
+		return ret;
+	ret = device_add(dev);
+	if (ret)
 		return ret;
 
 	set_bit(1, &cdev->private->registered);
@@ -1024,9 +1060,6 @@ static void ccw_device_call_sch_unregister(struct work_struct *work)
 		return;
 	sch = to_subchannel(cdev->dev.parent);
 	css_sch_device_unregister(sch);
-	/* Reset intparm to zeroes. */
-	sch->config.intparm = 0;
-	cio_commit_config(sch);
 	/* Release cdev reference for workqueue processing.*/
 	put_device(&cdev->dev);
 	/* Release subchannel reference for local processing. */
@@ -1035,6 +1068,9 @@ static void ccw_device_call_sch_unregister(struct work_struct *work)
 
 void ccw_device_schedule_sch_unregister(struct ccw_device *cdev)
 {
+	/* Get cdev reference for workqueue processing. */
+	if (!get_device(&cdev->dev))
+		return;
 	PREPARE_WORK(&cdev->private->kick_work,
 		     ccw_device_call_sch_unregister);
 	queue_work(slow_path_wq, &cdev->private->kick_work);
@@ -1055,9 +1091,6 @@ io_subchannel_recog_done(struct ccw_device *cdev)
 		/* Device did not respond in time. */
 	case DEV_STATE_NOT_OPER:
 		cdev->private->flags.recog_done = 1;
-		/* Remove device found not operational. */
-		if (!get_device(&cdev->dev))
-			break;
 		ccw_device_schedule_sch_unregister(cdev);
 		if (atomic_dec_and_test(&ccw_device_init_count))
 			wake_up(&ccw_device_init_wq);
@@ -1095,13 +1128,6 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
 	init_waitqueue_head(&priv->wait_q);
 	init_timer(&priv->timer);
 
-	/* Set an initial name for the device. */
-	if (cio_is_console(sch->schid))
-		cdev->dev.init_name = cio_get_console_cdev_name(sch);
-	else
-		dev_set_name(&cdev->dev, "0.%x.%04x",
-			     sch->schid.ssid, sch->schib.pmcw.dev);
-
 	/* Increase counter of devices currently in recognition. */
 	atomic_inc(&ccw_device_init_count);
 
@@ -1171,8 +1197,8 @@ static void io_subchannel_irq(struct subchannel *sch)
 
 	cdev = sch_get_cdev(sch);
 
-	CIO_TRACE_EVENT(3, "IRQ");
-	CIO_TRACE_EVENT(3, dev_name(&sch->dev));
+	CIO_TRACE_EVENT(6, "IRQ");
+	CIO_TRACE_EVENT(6, dev_name(&sch->dev));
 	if (cdev)
 		dev_fsm_event(cdev, DEV_EVENT_INTERRUPT);
 }
@@ -1210,9 +1236,6 @@ static void io_subchannel_do_unreg(struct work_struct *work)
 
 	sch = container_of(work, struct subchannel, work);
 	css_sch_device_unregister(sch);
-	/* Reset intparm to zeroes. */
-	sch->config.intparm = 0;
-	cio_commit_config(sch);
 	put_device(&sch->dev);
 }
 
@@ -1334,7 +1357,6 @@ io_subchannel_remove (struct subchannel *sch)
 	cdev->private->state = DEV_STATE_NOT_OPER;
 	spin_unlock_irqrestore(cdev->ccwlock, flags);
 	ccw_device_unregister(cdev);
-	put_device(&cdev->dev);
 	kfree(sch->private);
 	sysfs_remove_group(&sch->dev.kobj, &io_subchannel_attr_group);
 	return 0;
@@ -1571,8 +1593,6 @@ static int purge_fn(struct device *dev, void *data)
 	spin_unlock_irq(cdev->ccwlock);
 	if (!unreg)
 		goto out;
-	if (!get_device(&cdev->dev))
-		goto out;
 	CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", priv->dev_id.ssid,
 		      priv->dev_id.devno);
 	ccw_device_schedule_sch_unregister(cdev);
@@ -1688,10 +1708,6 @@ static int io_subchannel_sch_event(struct subchannel *sch, int slow)
 		spin_unlock_irqrestore(sch->lock, flags);
 		css_sch_device_unregister(sch);
 		spin_lock_irqsave(sch->lock, flags);
-
-		/* Reset intparm to zeroes. */
-		sch->config.intparm = 0;
-		cio_commit_config(sch);
 		break;
 	case REPROBE:
 		ccw_device_trigger_reprobe(cdev);
@@ -1712,7 +1728,6 @@ static int io_subchannel_sch_event(struct subchannel *sch, int slow)
 
 #ifdef CONFIG_CCW_CONSOLE
 static struct ccw_device console_cdev;
-static char console_cdev_name[10] = "0.x.xxxx";
 static struct ccw_device_private console_private;
 static int console_cdev_in_use;
 
@@ -1796,13 +1811,6 @@ int ccw_device_force_console(void)
 	return ccw_device_pm_restore(&console_cdev.dev);
 }
 EXPORT_SYMBOL_GPL(ccw_device_force_console);
-
-const char *cio_get_console_cdev_name(struct subchannel *sch)
-{
-	snprintf(console_cdev_name, 10, "0.%x.%04x",
-		 sch->schid.ssid, sch->schib.pmcw.dev);
-	return (const char *)console_cdev_name;
-}
 #endif
 
 /*
@@ -2020,7 +2028,9 @@ static void __ccw_device_pm_restore(struct ccw_device *cdev)
 	spin_unlock_irq(sch->lock);
 	if (ret) {
 		CIO_MSG_EVENT(0, "Couldn't start recognition for device "
-			      "%s (ret=%d)\n", dev_name(&cdev->dev), ret);
+			      "0.%x.%04x (ret=%d)\n",
+			      cdev->private->dev_id.ssid,
+			      cdev->private->dev_id.devno, ret);
 		spin_lock_irq(sch->lock);
 		cdev->private->state = DEV_STATE_DISCONNECTED;
 		spin_unlock_irq(sch->lock);
@@ -2083,8 +2093,9 @@ static int ccw_device_pm_restore(struct device *dev)
 	}
 	/* check if the device id has changed */
 	if (sch->schib.pmcw.dev != cdev->private->dev_id.devno) {
-		CIO_MSG_EVENT(0, "resume: sch %s: failed (devno changed from "
-			      "%04x to %04x)\n", dev_name(&sch->dev),
+		CIO_MSG_EVENT(0, "resume: sch 0.%x.%04x: failed (devno "
+			      "changed from %04x to %04x)\n",
+			      sch->schid.ssid, sch->schid.sch_no,
 			      cdev->private->dev_id.devno,
 			      sch->schib.pmcw.dev);
 		goto out_unreg_unlock;
@@ -2117,8 +2128,9 @@ static int ccw_device_pm_restore(struct device *dev)
 	if (cm_enabled) {
 		ret = ccw_set_cmf(cdev, 1);
 		if (ret) {
-			CIO_MSG_EVENT(2, "resume: cdev %s: cmf failed "
-				      "(rc=%d)\n", dev_name(&cdev->dev), ret);
+			CIO_MSG_EVENT(2, "resume: cdev 0.%x.%04x: cmf failed "
+				      "(rc=%d)\n", cdev->private->dev_id.ssid,
+				      cdev->private->dev_id.devno, ret);
 			ret = 0;
 		}
 	}

drivers/s390/cio/device_fsm.c

@@ -394,6 +394,13 @@ ccw_device_done(struct ccw_device *cdev, int state)
 			ccw_device_schedule_sch_unregister(cdev);
 		cdev->private->flags.donotify = 0;
 	}
+	if (state == DEV_STATE_NOT_OPER) {
+		CIO_MSG_EVENT(0, "Device %04x gone on subchannel %04x\n",
+			      cdev->private->dev_id.devno, sch->schid.sch_no);
+		if (!ccw_device_notify(cdev, CIO_GONE))
+			ccw_device_schedule_sch_unregister(cdev);
+		cdev->private->flags.donotify = 0;
+	}
 
 	if (cdev->private->flags.donotify) {
 		cdev->private->flags.donotify = 0;
@@ -730,6 +737,17 @@ static void ccw_device_generic_notoper(struct ccw_device *cdev,
 	css_schedule_eval(sch->schid);
 }
 
+/*
+ * Handle path verification event in offline state.
+ */
+static void ccw_device_offline_verify(struct ccw_device *cdev,
+				      enum dev_event dev_event)
+{
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+
+	css_schedule_eval(sch->schid);
+}
+
 /*
  * Handle path verification event.
  */
@@ -887,6 +905,8 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event)
 	}
 call_handler:
 	cdev->private->state = DEV_STATE_ONLINE;
+	/* In case sensing interfered with setting the device online */
+	wake_up(&cdev->private->wait_q);
 	/* Call the handler. */
 	if (ccw_device_call_handler(cdev) && cdev->private->flags.doverify)
 		/* Start delayed path verification. */
@@ -1149,7 +1169,7 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = {
 		[DEV_EVENT_NOTOPER]	= ccw_device_generic_notoper,
 		[DEV_EVENT_INTERRUPT]	= ccw_device_offline_irq,
 		[DEV_EVENT_TIMEOUT]	= ccw_device_nop,
-		[DEV_EVENT_VERIFY]	= ccw_device_nop,
+		[DEV_EVENT_VERIFY]	= ccw_device_offline_verify,
 	},
 	[DEV_STATE_VERIFY] = {
 		[DEV_EVENT_NOTOPER]	= ccw_device_generic_notoper,

drivers/s390/cio/qdio.h

@@ -1,7 +1,7 @@
 /*
  * linux/drivers/s390/cio/qdio.h
  *
- * Copyright 2000,2008 IBM Corp.
+ * Copyright 2000,2009 IBM Corp.
  * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
  *	      Jan Glauber <jang@linux.vnet.ibm.com>
  */
@@ -246,6 +246,7 @@ struct qdio_q {
 	atomic_t nr_buf_used;
 
 	struct qdio_irq *irq_ptr;
+	struct dentry *debugfs_q;
 	struct tasklet_struct tasklet;
 
 	/* error condition during a data transfer */
@@ -267,6 +268,7 @@ struct qdio_irq {
 	struct qib qib;
 	u32 *dsci;		/* address of device state change indicator */
 	struct ccw_device *cdev;
+	struct dentry *debugfs_dev;
 
 	unsigned long int_parm;
 	struct subchannel_id schid;

drivers/s390/cio/qdio_debug.c

@@ -1,14 +1,12 @@
 /*
  *  drivers/s390/cio/qdio_debug.c
  *
- *  Copyright IBM Corp. 2008
+ *  Copyright IBM Corp. 2008,2009
  *
  *  Author: Jan Glauber (jang@linux.vnet.ibm.com)
  */
-#include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
-#include <asm/qdio.h>
 #include <asm/debug.h>
 #include "qdio_debug.h"
 #include "qdio.h"
@@ -17,10 +15,7 @@ debug_info_t *qdio_dbf_setup;
 debug_info_t *qdio_dbf_error;
 
 static struct dentry *debugfs_root;
-#define MAX_DEBUGFS_QUEUES	32
-static struct dentry *debugfs_queues[MAX_DEBUGFS_QUEUES] = { NULL };
-static DEFINE_MUTEX(debugfs_mutex);
-#define QDIO_DEBUGFS_NAME_LEN	40
+#define QDIO_DEBUGFS_NAME_LEN	10
 
 void qdio_allocate_dbf(struct qdio_initialize *init_data,
 		       struct qdio_irq *irq_ptr)
@@ -130,20 +125,6 @@ static int qstat_seq_open(struct inode *inode, struct file *filp)
 			   filp->f_path.dentry->d_inode->i_private);
 }
 
-static void remove_debugfs_entry(struct qdio_q *q)
-{
-	int i;
-
-	for (i = 0; i < MAX_DEBUGFS_QUEUES; i++) {
-		if (!debugfs_queues[i])
-			continue;
-		if (debugfs_queues[i]->d_inode->i_private == q) {
-			debugfs_remove(debugfs_queues[i]);
-			debugfs_queues[i] = NULL;
-		}
-	}
-}
-
 static struct file_operations debugfs_fops = {
 	.owner	 = THIS_MODULE,
 	.open	 = qstat_seq_open,
@@ -155,22 +136,15 @@ static struct file_operations debugfs_fops = {
 
 static void setup_debugfs_entry(struct qdio_q *q, struct ccw_device *cdev)
 {
-	int i = 0;
 	char name[QDIO_DEBUGFS_NAME_LEN];
 
-	while (debugfs_queues[i] != NULL) {
-		i++;
-		if (i >= MAX_DEBUGFS_QUEUES)
-			return;
-	}
-	snprintf(name, QDIO_DEBUGFS_NAME_LEN, "%s_%s_%d",
-		 dev_name(&cdev->dev),
+	snprintf(name, QDIO_DEBUGFS_NAME_LEN, "%s_%d",
 		 q->is_input_q ? "input" : "output",
 		 q->nr);
-	debugfs_queues[i] = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
-						debugfs_root, q, &debugfs_fops);
-	if (IS_ERR(debugfs_queues[i]))
-		debugfs_queues[i] = NULL;
+	q->debugfs_q = debugfs_create_file(name, S_IFREG | S_IRUGO | S_IWUSR,
+				q->irq_ptr->debugfs_dev, q, &debugfs_fops);
+	if (IS_ERR(q->debugfs_q))
+		q->debugfs_q = NULL;
 }
 
 void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
@@ -178,12 +152,14 @@ void qdio_setup_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
 	struct qdio_q *q;
 	int i;
 
-	mutex_lock(&debugfs_mutex);
+	irq_ptr->debugfs_dev = debugfs_create_dir(dev_name(&cdev->dev),
+						  debugfs_root);
+	if (IS_ERR(irq_ptr->debugfs_dev))
+		irq_ptr->debugfs_dev = NULL;
 	for_each_input_queue(irq_ptr, q, i)
 		setup_debugfs_entry(q, cdev);
 	for_each_output_queue(irq_ptr, q, i)
 		setup_debugfs_entry(q, cdev);
-	mutex_unlock(&debugfs_mutex);
 }
 
 void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cdev)
@@ -191,17 +167,16 @@ void qdio_shutdown_debug_entries(struct qdio_irq *irq_ptr, struct ccw_device *cd
 	struct qdio_q *q;
 	int i;
 
-	mutex_lock(&debugfs_mutex);
 	for_each_input_queue(irq_ptr, q, i)
-		remove_debugfs_entry(q);
+		debugfs_remove(q->debugfs_q);
 	for_each_output_queue(irq_ptr, q, i)
-		remove_debugfs_entry(q);
-	mutex_unlock(&debugfs_mutex);
+		debugfs_remove(q->debugfs_q);
+	debugfs_remove(irq_ptr->debugfs_dev);
 }
 
 int __init qdio_debug_init(void)
 {
-	debugfs_root = debugfs_create_dir("qdio_queues", NULL);
+	debugfs_root = debugfs_create_dir("qdio", NULL);
 
 	qdio_dbf_setup = debug_register("qdio_setup", 16, 1, 16);
 	debug_register_view(qdio_dbf_setup, &debug_hex_ascii_view);

drivers/s390/cio/qdio_main.c

@@ -798,8 +798,10 @@ static void __tiqdio_inbound_processing(struct qdio_q *q)
 
 	if (!qdio_inbound_q_done(q)) {
 		qdio_perf_stat_inc(&perf_stats.thinint_inbound_loop);
-		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED))
+		if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) {
 			tasklet_schedule(&q->tasklet);
+			return;
+		}
 	}
 
 	qdio_stop_polling(q);

drivers/s390/crypto/ap_bus.c

@@ -648,7 +648,9 @@ static int ap_bus_suspend(struct device *dev, pm_message_t state)
 	/* Poll on the device until all requests are finished. */
 	do {
 		flags = 0;
+		spin_lock_bh(&ap_dev->lock);
 		__ap_poll_device(ap_dev, &flags);
+		spin_unlock_bh(&ap_dev->lock);
 	} while ((flags & 1) || (flags & 2));
 
 	ap_device_remove(dev);
@@ -1109,12 +1111,15 @@ static void ap_scan_bus(struct work_struct *unused)
 
 		ap_dev->device.bus = &ap_bus_type;
 		ap_dev->device.parent = ap_root_device;
-		dev_set_name(&ap_dev->device, "card%02x",
-			     AP_QID_DEVICE(ap_dev->qid));
+		if (dev_set_name(&ap_dev->device, "card%02x",
+				 AP_QID_DEVICE(ap_dev->qid))) {
+			kfree(ap_dev);
+			continue;
+		}
 		ap_dev->device.release = ap_device_release;
 		rc = device_register(&ap_dev->device);
 		if (rc) {
-			kfree(ap_dev);
+			put_device(&ap_dev->device);
 			continue;
 		}
 		/* Add device attributes. */
@@ -1407,14 +1412,12 @@ static void ap_reset(struct ap_device *ap_dev)
 
 static int __ap_poll_device(struct ap_device *ap_dev, unsigned long *flags)
 {
-	spin_lock(&ap_dev->lock);
 	if (!ap_dev->unregistered) {
 		if (ap_poll_queue(ap_dev, flags))
 			ap_dev->unregistered = 1;
 		if (ap_dev->reset == AP_RESET_DO)
 			ap_reset(ap_dev);
 	}
-	spin_unlock(&ap_dev->lock);
 	return 0;
 }
 
@@ -1441,7 +1444,9 @@ static void ap_poll_all(unsigned long dummy)
 		flags = 0;
 		spin_lock(&ap_device_list_lock);
 		list_for_each_entry(ap_dev, &ap_device_list, list) {
+			spin_lock(&ap_dev->lock);
 			__ap_poll_device(ap_dev, &flags);
+			spin_unlock(&ap_dev->lock);
 		}
 		spin_unlock(&ap_device_list_lock);
 	} while (flags & 1);
@@ -1487,7 +1492,9 @@ static int ap_poll_thread(void *data)
 		flags = 0;
 		spin_lock_bh(&ap_device_list_lock);
 		list_for_each_entry(ap_dev, &ap_device_list, list) {
+			spin_lock(&ap_dev->lock);
 			__ap_poll_device(ap_dev, &flags);
+			spin_unlock(&ap_dev->lock);
 		}
 		spin_unlock_bh(&ap_device_list_lock);
 	}

drivers/s390/kvm/kvm_virtio.c

@@ -403,10 +403,14 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
 	return len;
 }
 
-void __init s390_virtio_console_init(void)
+static int __init s390_virtio_console_init(void)
 {
-	virtio_cons_early_init(early_put_chars);
+	if (!MACHINE_IS_KVM)
+		return -ENODEV;
+	return virtio_cons_early_init(early_put_chars);
 }
+console_initcall(s390_virtio_console_init);
+
 
 /*
  * We do this after core stuff, but before the drivers.

drivers/s390/net/netiucv.c

@@ -1839,9 +1839,10 @@ static int netiucv_register_device(struct net_device *ndev)
 		return -ENOMEM;
 
 	ret = device_register(dev);
-
-	if (ret)
+	if (ret) {
+		put_device(dev);
 		return ret;
+	}
 	ret = netiucv_add_files(dev);
 	if (ret)
 		goto out_unreg;
@@ -2226,8 +2227,10 @@ static int __init netiucv_init(void)
 	netiucv_dev->release = (void (*)(struct device *))kfree;
 	netiucv_dev->driver = &netiucv_driver;
 	rc = device_register(netiucv_dev);
-	if (rc)
+	if (rc) {
+		put_device(netiucv_dev);
 		goto out_driver;
+	}
 	netiucv_banner();
 	return rc;
 

drivers/s390/net/smsgiucv.c

@@ -219,13 +219,13 @@ static int __init smsg_init(void)
 	smsg_dev->driver = &smsg_driver;
 	rc = device_register(smsg_dev);
 	if (rc)
-		goto out_free_dev;
+		goto out_put;
 
 	cpcmd("SET SMSG IUCV", NULL, 0, NULL);
 	return 0;
 
-out_free_dev:
-	kfree(smsg_dev);
+out_put:
+	put_device(smsg_dev);
 out_free_path:
 	iucv_path_free(smsg_path);
 	smsg_path = NULL;