Merge commit '9249e17fe094d853d1ef7475dd559a2cc7e23d42' into nfs-for-3.6

Resolve conflicts with the VFS atomic open and sget changes.

Conflicts:
	fs/nfs/nfs4proc.c

Documentation/ABI/testing/sysfs-block-rssd

@@ -1,26 +1,5 @@
-What:           /sys/block/rssd*/registers
-Date:           March 2012
-KernelVersion:  3.3
-Contact:        Asai Thambi S P <asamymuthupa@micron.com>
-Description:    This is a read-only file. Dumps below driver information and
-                hardware registers.
-                    - S ACTive
-                    - Command Issue
-                    - Completed
-                    - PORT IRQ STAT
-                    - HOST IRQ STAT
-                    - Allocated
-                    - Commands in Q
-
 What:           /sys/block/rssd*/status
 Date:           April 2012
 KernelVersion:  3.4
 Contact:        Asai Thambi S P <asamymuthupa@micron.com>
 Description:    This is a read-only file. Indicates the status of the device.
-
-What:           /sys/block/rssd*/flags
-Date:           May 2012
-KernelVersion:  3.5
-Contact:        Asai Thambi S P <asamymuthupa@micron.com>
-Description:    This is a read-only file. Dumps the flags in port and driver
-                data structure

Documentation/ABI/testing/sysfs-class-mtd

@@ -142,13 +142,14 @@ KernelVersion:	3.4
 Contact:	linux-mtd@lists.infradead.org
 Description:
 		This allows the user to examine and adjust the criteria by which
-		mtd returns -EUCLEAN from mtd_read().  If the maximum number of
-		bit errors that were corrected on any single region comprising
-		an ecc step (as reported by the driver) equals or exceeds this
-		value, -EUCLEAN is returned.  Otherwise, absent an error, 0 is
-		returned.  Higher layers (e.g., UBI) use this return code as an
-		indication that an erase block may be degrading and should be
-		scrutinized as a candidate for being marked as bad.
+		mtd returns -EUCLEAN from mtd_read() and mtd_read_oob().  If the
+		maximum number of bit errors that were corrected on any single
+		region comprising an ecc step (as reported by the driver) equals
+		or exceeds this value, -EUCLEAN is returned.  Otherwise, absent
+		an error, 0 is returned.  Higher layers (e.g., UBI) use this
+		return code as an indication that an erase block may be
+		degrading and should be scrutinized as a candidate for being
+		marked as bad.
 
 		The initial value may be specified by the flash device driver.
 		If not, then the default value is ecc_strength.
@@ -167,7 +168,7 @@ Description:
 		block degradation, but high enough to avoid the consequences of
 		a persistent return value of -EUCLEAN on devices where sticky
 		bitflips occur.  Note that if bitflip_threshold exceeds
-		ecc_strength, -EUCLEAN is never returned by mtd_read().
+		ecc_strength, -EUCLEAN is never returned by the read operations.
 		Conversely, if bitflip_threshold is zero, -EUCLEAN is always
 		returned, absent a hard error.
 

Documentation/DocBook/media/v4l/controls.xml

@@ -3988,7 +3988,7 @@ interface and may change in the future.</para>
 	    from RGB to Y'CbCr color space.
 	    </entry>
 	  </row>
-	  <row id = "v4l2-jpeg-chroma-subsampling">
+	  <row>
 	    <entrytbl spanname="descr" cols="2">
 	      <tbody valign="top">
 		<row>

Documentation/DocBook/media/v4l/pixfmt.xml

@@ -986,13 +986,13 @@ http://www.thedirks.org/winnov/</ulink></para></entry>
 	  <row id="V4L2-PIX-FMT-Y4">
 	    <entry><constant>V4L2_PIX_FMT_Y4</constant></entry>
 	    <entry>'Y04 '</entry>
-	    <entry>Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used,
+	    <entry>Old 4-bit greyscale format. Only the most significant 4 bits of each byte are used,
 the other bits are set to 0.</entry>
 	  </row>
 	  <row id="V4L2-PIX-FMT-Y6">
 	    <entry><constant>V4L2_PIX_FMT_Y6</constant></entry>
 	    <entry>'Y06 '</entry>
-	    <entry>Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used,
+	    <entry>Old 6-bit greyscale format. Only the most significant 6 bits of each byte are used,
 the other bits are set to 0.</entry>
 	  </row>
 	</tbody>

Documentation/DocBook/media/v4l/v4l2.xml

@@ -560,6 +560,7 @@ and discussions on the V4L mailing list.</revremark>
     &sub-g-tuner;
     &sub-log-status;
     &sub-overlay;
+    &sub-prepare-buf;
     &sub-qbuf;
     &sub-querybuf;
     &sub-querycap;
@@ -567,7 +568,6 @@ and discussions on the V4L mailing list.</revremark>
     &sub-query-dv-preset;
     &sub-query-dv-timings;
     &sub-querystd;
-    &sub-prepare-buf;
     &sub-reqbufs;
     &sub-s-hw-freq-seek;
     &sub-streamon;

Documentation/DocBook/media/v4l/vidioc-create-bufs.xml

@@ -108,10 +108,9 @@ information.</para>
 /></entry>
 	  </row>
 	  <row>
-	    <entry>__u32</entry>
+	    <entry>struct&nbsp;v4l2_format</entry>
 	    <entry><structfield>format</structfield></entry>
-	    <entry>Filled in by the application, preserved by the driver.
-	    See <xref linkend="v4l2-format" />.</entry>
+	    <entry>Filled in by the application, preserved by the driver.</entry>
 	  </row>
 	  <row>
 	    <entry>__u32</entry>

Documentation/DocBook/media/v4l/vidioc-dqevent.xml

@@ -89,7 +89,7 @@
 	  <row>
 	    <entry></entry>
 	    <entry>&v4l2-event-frame-sync;</entry>
-            <entry><structfield>frame</structfield></entry>
+            <entry><structfield>frame_sync</structfield></entry>
 	    <entry>Event data for event V4L2_EVENT_FRAME_SYNC.</entry>
 	  </row>
 	  <row>

Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml

@@ -284,13 +284,6 @@ These controls are described in <xref
 	    processing controls. These controls are described in <xref
 	    linkend="image-process-controls" />.</entry>
 	  </row>
-	  <row>
-	    <entry><constant>V4L2_CTRL_CLASS_JPEG</constant></entry>
-	    <entry>0x9d0000</entry>
-	    <entry>The class containing JPEG compression controls.
-These controls are described in <xref
-		linkend="jpeg-controls" />.</entry>
-	  </row>
 	</tbody>
       </tgroup>
     </table>

Documentation/device-mapper/verity.txt

@@ -7,39 +7,39 @@ This target is read-only.
 
 Construction Parameters
 =======================
-    <version> <dev> <hash_dev> <hash_start>
+    <version> <dev> <hash_dev>
     <data_block_size> <hash_block_size>
     <num_data_blocks> <hash_start_block>
     <algorithm> <digest> <salt>
 
 <version>
-    This is the version number of the on-disk format.
+    This is the type of the on-disk hash format.
 
     0 is the original format used in the Chromium OS.
-	The salt is appended when hashing, digests are stored continuously and
-	the rest of the block is padded with zeros.
+      The salt is appended when hashing, digests are stored continuously and
+      the rest of the block is padded with zeros.
 
     1 is the current format that should be used for new devices.
-	The salt is prepended when hashing and each digest is
-	padded with zeros to the power of two.
+      The salt is prepended when hashing and each digest is
+      padded with zeros to the power of two.
 
 <dev>
-    This is the device containing the data the integrity of which needs to be
+    This is the device containing data, the integrity of which needs to be
     checked.  It may be specified as a path, like /dev/sdaX, or a device number,
     <major>:<minor>.
 
 <hash_dev>
-    This is the device that that supplies the hash tree data.  It may be
+    This is the device that supplies the hash tree data.  It may be
     specified similarly to the device path and may be the same device.  If the
-    same device is used, the hash_start should be outside of the dm-verity
-    configured device size.
+    same device is used, the hash_start should be outside the configured
+    dm-verity device.
 
 <data_block_size>
-    The block size on a data device.  Each block corresponds to one digest on
-    the hash device.
+    The block size on a data device in bytes.
+    Each block corresponds to one digest on the hash device.
 
 <hash_block_size>
-    The size of a hash block.
+    The size of a hash block in bytes.
 
 <num_data_blocks>
     The number of data blocks on the data device.  Additional blocks are
@@ -65,7 +65,7 @@ Construction Parameters
 Theory of operation
 ===================
 
-dm-verity is meant to be setup as part of a verified boot path.  This
+dm-verity is meant to be set up as part of a verified boot path.  This
 may be anything ranging from a boot using tboot or trustedgrub to just
 booting from a known-good device (like a USB drive or CD).
 
@@ -73,20 +73,20 @@ When a dm-verity device is configured, it is expected that the caller
 has been authenticated in some way (cryptographic signatures, etc).
 After instantiation, all hashes will be verified on-demand during
 disk access.  If they cannot be verified up to the root node of the
-tree, the root hash, then the I/O will fail.  This should identify
+tree, the root hash, then the I/O will fail.  This should detect
 tampering with any data on the device and the hash data.
 
 Cryptographic hashes are used to assert the integrity of the device on a
-per-block basis.  This allows for a lightweight hash computation on first read
-into the page cache.  Block hashes are stored linearly-aligned to the nearest
-block the size of a page.
+per-block basis. This allows for a lightweight hash computation on first read
+into the page cache. Block hashes are stored linearly, aligned to the nearest
+block size.
 
 Hash Tree
 ---------
 
 Each node in the tree is a cryptographic hash.  If it is a leaf node, the hash
-is of some block data on disk.  If it is an intermediary node, then the hash is
-of a number of child nodes.
+of some data block on disk is calculated. If it is an intermediary node,
+the hash of a number of child nodes is calculated.
 
 Each entry in the tree is a collection of neighboring nodes that fit in one
 block.  The number is determined based on block_size and the size of the
@@ -110,63 +110,23 @@ alg = sha256, num_blocks = 32768, block_size = 4096
 On-disk format
 ==============
 
-Below is the recommended on-disk format. The verity kernel code does not
-read the on-disk header. It only reads the hash blocks which directly
-follow the header. It is expected that a user-space tool will verify the
-integrity of the verity_header and then call dmsetup with the correct
-parameters. Alternatively, the header can be omitted and the dmsetup
-parameters can be passed via the kernel command-line in a rooted chain
-of trust where the command-line is verified.
+The verity kernel code does not read the verity metadata on-disk header.
+It only reads the hash blocks which directly follow the header.
+It is expected that a user-space tool will verify the integrity of the
+verity header.
 
-The on-disk format is especially useful in cases where the hash blocks
-are on a separate partition. The magic number allows easy identification
-of the partition contents. Alternatively, the hash blocks can be stored
-in the same partition as the data to be verified. In such a configuration
-the filesystem on the partition would be sized a little smaller than
-the full-partition, leaving room for the hash blocks.
-
-struct superblock {
-	uint8_t signature[8]
-		"verity\0\0";
-
-	uint8_t version;
-		1 - current format
-
-	uint8_t data_block_bits;
-		log2(data block size)
-
-	uint8_t hash_block_bits;
-		log2(hash block size)
-
-	uint8_t pad1[1];
-		zero padding
-
-	uint16_t salt_size;
-		big-endian salt size
-
-	uint8_t pad2[2];
-		zero padding
-
-	uint32_t data_blocks_hi;
-		big-endian high 32 bits of the 64-bit number of data blocks
-
-	uint32_t data_blocks_lo;
-		big-endian low 32 bits of the 64-bit number of data blocks
-
-	uint8_t algorithm[16];
-		cryptographic algorithm
-
-	uint8_t salt[384];
-		salt (the salt size is specified above)
-
-	uint8_t pad3[88];
-		zero padding to 512-byte boundary
-}
+Alternatively, the header can be omitted and the dmsetup parameters can
+be passed via the kernel command-line in a rooted chain of trust where
+the command-line is verified.
 
 Directly following the header (and with sector number padded to the next hash
 block boundary) are the hash blocks which are stored a depth at a time
 (starting from the root), sorted in order of increasing index.
 
+The full specification of kernel parameters and on-disk metadata format
+is available at the cryptsetup project's wiki page
+  http://code.google.com/p/cryptsetup/wiki/DMVerity
+
 Status
 ======
 V (for Valid) is returned if every check performed so far was valid.
@@ -174,21 +134,22 @@ If any check failed, C (for Corruption) is returned.
 
 Example
 =======
-
-Setup a device:
-  dmsetup create vroot --table \
-    "0 2097152 "\
-    "verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\
+Set up a device:
+  # dmsetup create vroot --readonly --table \
+    "0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\
     "4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\
     "1234000000000000000000000000000000000000000000000000000000000000"
 
 A command line tool veritysetup is available to compute or verify
-the hash tree or activate the kernel driver.  This is available from
-the LVM2 upstream repository and may be supplied as a package called
-device-mapper-verity-tools:
-    git://sources.redhat.com/git/lvm2
-    http://sourceware.org/git/?p=lvm2.git
-    http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2
-
-veritysetup -a vroot /dev/sda1 /dev/sda2 \
-	4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
+the hash tree or activate the kernel device. This is available from
+the cryptsetup upstream repository http://code.google.com/p/cryptsetup/
+(as a libcryptsetup extension).
+
+Create hash on the device:
+  # veritysetup format /dev/sda1 /dev/sda2
+  ...
+  Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076
+
+Activate the device:
+  # veritysetup create vroot /dev/sda1 /dev/sda2 \
+    4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076

Documentation/devicetree/bindings/input/fsl-mma8450.txt

@@ -2,6 +2,7 @@
 
 Required properties:
 - compatible : "fsl,mma8450".
+- reg: the I2C address of MMA8450
 
 Example:
 

Documentation/devicetree/bindings/mfd/mc13xxx.txt

@@ -46,8 +46,8 @@ Examples:
 
 ecspi@70010000 { /* ECSPI1 */
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
-		   <&gpio3 25 0>; /* GPIO4_25 */
+	cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */
+		   <&gpio4 25 0>; /* GPIO4_25 */
 	status = "okay";
 
 	pmic: mc13892@0 {

Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt

@@ -29,6 +29,6 @@ esdhc@70008000 {
 	compatible = "fsl,imx51-esdhc";
 	reg = <0x70008000 0x4000>;
 	interrupts = <2>;
-	cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
-	wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
+	cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */
+	wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */
 };

Documentation/devicetree/bindings/net/fsl-fec.txt

@@ -19,6 +19,6 @@ ethernet@83fec000 {
 	reg = <0x83fec000 0x4000>;
 	interrupts = <87>;
 	phy-mode = "mii";
-	phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */
+	phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
 	local-mac-address = [00 04 9F 01 1B B9];
 };

Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt

@@ -17,6 +17,6 @@ ecspi@70010000 {
 	reg = <0x70010000 0x4000>;
 	interrupts = <36>;
 	fsl,spi-num-chipselects = <2>;
-	cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
-		   <&gpio3 25 0>; /* GPIO4_25 */
+	cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
+		   <&gpio3 25 0>; /* GPIO3_25 */
 };

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -3,6 +3,7 @@ Device tree binding vendor prefix registry.  Keep list in alphabetical order.
 This isn't an exhaustive list, but you should add new prefixes to it before
 using them to avoid name-space collisions.
 
+ad	Avionic Design GmbH
 adi	Analog Devices, Inc.
 amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 apm	Applied Micro Circuits Corporation (APM)

Documentation/filesystems/Locking

@@ -9,7 +9,7 @@ be able to use diff(1).
 
 --------------------------- dentry_operations --------------------------
 prototypes:
-	int (*d_revalidate)(struct dentry *, struct nameidata *);
+	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_hash)(const struct dentry *, const struct inode *,
 			struct qstr *);
 	int (*d_compare)(const struct dentry *, const struct inode *,
@@ -37,9 +37,8 @@ d_manage:	no		no		yes (ref-walk)	maybe
 
 --------------------------- inode_operations --------------------------- 
 prototypes:
-	int (*create) (struct inode *,struct dentry *,umode_t, struct nameidata *);
-	struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameid
-ata *);
+	int (*create) (struct inode *,struct dentry *,umode_t, bool);
+	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
 	int (*link) (struct dentry *,struct inode *,struct dentry *);
 	int (*unlink) (struct inode *,struct dentry *);
 	int (*symlink) (struct inode *,struct dentry *,const char *);
@@ -62,6 +61,9 @@ ata *);
 	int (*removexattr) (struct dentry *, const char *);
 	int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
 	void (*update_time)(struct inode *, struct timespec *, int);
+	int (*atomic_open)(struct inode *, struct dentry *,
+				struct file *, unsigned open_flag,
+				umode_t create_mode, int *opened);
 
 locking rules:
 	all may block
@@ -89,6 +91,7 @@ listxattr:	no
 removexattr:	yes
 fiemap:		no
 update_time:	no
+atomic_open:	yes
 
 	Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
 victim.

Documentation/filesystems/porting

@@ -355,12 +355,10 @@ protects *all* the dcache state of a given dentry.
 via rcu-walk path walk (basically, if the file can have had a path name in the
 vfs namespace).
 
-	i_dentry and i_rcu share storage in a union, and the vfs expects
-i_dentry to be reinitialized before it is freed, so an:
-
-  INIT_LIST_HEAD(&inode->i_dentry);
-
-must be done in the RCU callback.
+	Even though i_dentry and i_rcu share storage in a union, we will
+initialize the former in inode_init_always(), so just leave it alone in
+the callback.  It used to be necessary to clean it there, but not anymore
+(starting at 3.2).
 
 --
 [recommended]
@@ -433,3 +431,14 @@ release it yourself.
 	d_alloc_root() is gone, along with a lot of bugs caused by code
 misusing it.  Replacement: d_make_root(inode).  The difference is,
 d_make_root() drops the reference to inode if dentry allocation fails.  
+
+--
+[mandatory]
+	The witch is dead!  Well, 2/3 of it, anyway.  ->d_revalidate() and
+->lookup() do *not* take struct nameidata anymore; just the flags.
+--
+[mandatory]
+	->create() doesn't take struct nameidata *; unlike the previous
+two, it gets "is it an O_EXCL or equivalent?" boolean argument.  Note that
+local filesystems can ignore tha argument - they are guaranteed that the
+object doesn't exist.  It's remote/distributed ones that might care...

Documentation/filesystems/vfs.txt

@@ -341,8 +341,8 @@ This describes how the VFS can manipulate an inode in your
 filesystem. As of kernel 2.6.22, the following members are defined:
 
 struct inode_operations {
-	int (*create) (struct inode *,struct dentry *, umode_t, struct nameidata *);
-	struct dentry * (*lookup) (struct inode *,struct dentry *, struct nameidata *);
+	int (*create) (struct inode *,struct dentry *, umode_t, bool);
+	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
 	int (*link) (struct dentry *,struct inode *,struct dentry *);
 	int (*unlink) (struct inode *,struct dentry *);
 	int (*symlink) (struct inode *,struct dentry *,const char *);
@@ -364,6 +364,9 @@ struct inode_operations {
 	ssize_t (*listxattr) (struct dentry *, char *, size_t);
 	int (*removexattr) (struct dentry *, const char *);
 	void (*update_time)(struct inode *, struct timespec *, int);
+	int (*atomic_open)(struct inode *, struct dentry *,
+				struct file *, unsigned open_flag,
+				umode_t create_mode, int *opened);
 };
 
 Again, all methods are called without any locks being held, unless
@@ -476,6 +479,14 @@ otherwise noted.
   	an inode.  If this is not defined the VFS will update the inode itself
   	and call mark_inode_dirty_sync.
 
+  atomic_open: called on the last component of an open.  Using this optional
+  	method the filesystem can look up, possibly create and open the file in
+  	one atomic operation.  If it cannot perform this (e.g. the file type
+  	turned out to be wrong) it may signal this by returning 1 instead of
+  	usual 0 or -ve .  This method is only called if the last
+  	component is negative or needs lookup.  Cached positive dentries are
+  	still handled by f_op->open().
+
 The Address Space Object
 ========================
 
@@ -891,7 +902,7 @@ the VFS uses a default. As of kernel 2.6.22, the following members are
 defined:
 
 struct dentry_operations {
-	int (*d_revalidate)(struct dentry *, struct nameidata *);
+	int (*d_revalidate)(struct dentry *, unsigned int);
 	int (*d_hash)(const struct dentry *, const struct inode *,
 			struct qstr *);
 	int (*d_compare)(const struct dentry *, const struct inode *,
@@ -910,11 +921,11 @@ struct dentry_operations {
 	dcache. Most filesystems leave this as NULL, because all their
 	dentries in the dcache are valid
 
-	d_revalidate may be called in rcu-walk mode (nd->flags & LOOKUP_RCU).
+	d_revalidate may be called in rcu-walk mode (flags & LOOKUP_RCU).
 	If in rcu-walk mode, the filesystem must revalidate the dentry without
 	blocking or storing to the dentry, d_parent and d_inode should not be
-	used without care (because they can go NULL), instead nd->inode should
-	be used.
+	used without care (because they can change and, in d_inode case, even
+	become NULL under us).
 
 	If a situation is encountered that rcu-walk cannot handle, return
 	-ECHILD and it will be called again in ref-walk mode.

Documentation/prctl/no_new_privs.txt

@@ -0,0 +1,57 @@
+The execve system call can grant a newly-started program privileges that
+its parent did not have.  The most obvious examples are setuid/setgid
+programs and file capabilities.  To prevent the parent program from
+gaining these privileges as well, the kernel and user code must be
+careful to prevent the parent from doing anything that could subvert the
+child.  For example:
+
+ - The dynamic loader handles LD_* environment variables differently if
+   a program is setuid.
+
+ - chroot is disallowed to unprivileged processes, since it would allow
+   /etc/passwd to be replaced from the point of view of a process that
+   inherited chroot.
+
+ - The exec code has special handling for ptrace.
+
+These are all ad-hoc fixes.  The no_new_privs bit (since Linux 3.5) is a
+new, generic mechanism to make it safe for a process to modify its
+execution environment in a manner that persists across execve.  Any task
+can set no_new_privs.  Once the bit is set, it is inherited across fork,
+clone, and execve and cannot be unset.  With no_new_privs set, execve
+promises not to grant the privilege to do anything that could not have
+been done without the execve call.  For example, the setuid and setgid
+bits will no longer change the uid or gid; file capabilities will not
+add to the permitted set, and LSMs will not relax constraints after
+execve.
+
+To set no_new_privs, use prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0).
+
+Be careful, though: LSMs might also not tighten constraints on exec
+in no_new_privs mode.  (This means that setting up a general-purpose
+service launcher to set no_new_privs before execing daemons may
+interfere with LSM-based sandboxing.)
+
+Note that no_new_privs does not prevent privilege changes that do not
+involve execve.  An appropriately privileged task can still call
+setuid(2) and receive SCM_RIGHTS datagrams.
+
+There are two main use cases for no_new_privs so far:
+
+ - Filters installed for the seccomp mode 2 sandbox persist across
+   execve and can change the behavior of newly-executed programs.
+   Unprivileged users are therefore only allowed to install such filters
+   if no_new_privs is set.
+
+ - By itself, no_new_privs can be used to reduce the attack surface
+   available to an unprivileged user.  If everything running with a
+   given uid has no_new_privs set, then that uid will be unable to
+   escalate its privileges by directly attacking setuid, setgid, and
+   fcap-using binaries; it will need to compromise something without the
+   no_new_privs bit set first.
+
+In the future, other potentially dangerous kernel features could become
+available to unprivileged tasks if no_new_privs is set.  In principle,
+several options to unshare(2) and clone(2) would be safe when
+no_new_privs is set, and no_new_privs + chroot is considerable less
+dangerous than chroot by itself.

Documentation/stable_kernel_rules.txt

@@ -12,6 +12,12 @@ Rules on what kind of patches are accepted, and which ones are not, into the
    marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
    security issue, or some "oh, that's not good" issue.  In short, something
    critical.
+ - Serious issues as reported by a user of a distribution kernel may also
+   be considered if they fix a notable performance or interactivity issue.
+   As these fixes are not as obvious and have a higher risk of a subtle
+   regression they should only be submitted by a distribution kernel
+   maintainer and include an addendum linking to a bugzilla entry if it
+   exists and additional information on the user-visible impact.
  - New device IDs and quirks are also accepted.
  - No "theoretical race condition" issues, unless an explanation of how the
    race can be exploited is also provided.

Documentation/virtual/kvm/api.txt

@@ -1930,6 +1930,23 @@ The "pte_enc" field provides a value that can OR'ed into the hash
 PTE's RPN field (ie, it needs to be shifted left by 12 to OR it
 into the hash PTE second double word).
 
+4.75 KVM_IRQFD
+
+Capability: KVM_CAP_IRQFD
+Architectures: x86
+Type: vm ioctl
+Parameters: struct kvm_irqfd (in)
+Returns: 0 on success, -1 on error
+
+Allows setting an eventfd to directly trigger a guest interrupt.
+kvm_irqfd.fd specifies the file descriptor to use as the eventfd and
+kvm_irqfd.gsi specifies the irqchip pin toggled by this event.  When
+an event is tiggered on the eventfd, an interrupt is injected into
+the guest using the specified gsi pin.  The irqfd is removed using
+the KVM_IRQFD_FLAG_DEASSIGN flag, specifying both kvm_irqfd.fd
+and kvm_irqfd.gsi.
+
+
 5. The kvm_run structure
 ------------------------
 

MAINTAINERS

@@ -4654,8 +4654,8 @@ L:	netfilter@vger.kernel.org
 L:	coreteam@netfilter.org
 W:	http://www.netfilter.org/
 W:	http://www.iptables.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git
+T:	git git://1984.lsi.us.es/nf
+T:	git git://1984.lsi.us.es/nf-next
 S:	Supported
 F:	include/linux/netfilter*
 F:	include/linux/netfilter/
@@ -4857,6 +4857,7 @@ M:	Kevin Hilman <khilman@ti.com>
 L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	arch/arm/*omap*/*pm*
+F:	drivers/cpufreq/omap-cpufreq.c
 
 OMAP POWERDOMAIN/CLOCKDOMAIN SOC ADAPTATION LAYER SUPPORT
 M:	Rajendra Nayak <rnayak@ti.com>

Makefile

@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 5
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -rc6
 NAME = Saber-toothed Squirrel
 
 # *DOCUMENTATION*

arch/arm/configs/omap2plus_defconfig

@@ -176,7 +176,6 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_DEVICEFS=y
 CONFIG_USB_SUSPEND=y
 CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_WDM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_LIBUSUAL=y

arch/arm/include/asm/atomic.h

@@ -243,7 +243,7 @@ typedef struct {
 
 #define ATOMIC64_INIT(i) { (i) }
 
-static inline u64 atomic64_read(atomic64_t *v)
+static inline u64 atomic64_read(const atomic64_t *v)
 {
 	u64 result;
 

arch/arm/include/asm/domain.h

@@ -60,13 +60,13 @@
 #ifndef __ASSEMBLY__
 
 #ifdef CONFIG_CPU_USE_DOMAINS
-#define set_domain(x)					\
-	do {						\
-	__asm__ __volatile__(				\
-	"mcr	p15, 0, %0, c3, c0	@ set domain"	\
-	  : : "r" (x));					\
-	isb();						\
-	} while (0)
+static inline void set_domain(unsigned val)
+{
+	asm volatile(
+	"mcr	p15, 0, %0, c3, c0	@ set domain"
+	  : : "r" (val));
+	isb();
+}
 
 #define modify_domain(dom,type)					\
 	do {							\
@@ -78,8 +78,8 @@
 	} while (0)
 
 #else
-#define set_domain(x)		do { } while (0)
-#define modify_domain(dom,type)	do { } while (0)
+static inline void set_domain(unsigned val) { }
+static inline void modify_domain(unsigned dom, unsigned type)	{ }
 #endif
 
 /*

arch/arm/include/asm/thread_info.h

@@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_NOTIFY_RESUME	2	/* callback before returning to user */
 #define TIF_SYSCALL_TRACE	8
 #define TIF_SYSCALL_AUDIT	9
-#define TIF_SYSCALL_RESTARTSYS	10
 #define TIF_POLLING_NRFLAG	16
 #define TIF_USING_IWMMXT	17
 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
@@ -164,11 +163,9 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_USING_IWMMXT	(1 << TIF_USING_IWMMXT)
 #define _TIF_SECCOMP		(1 << TIF_SECCOMP)
-#define _TIF_SYSCALL_RESTARTSYS	(1 << TIF_SYSCALL_RESTARTSYS)
 
 /* Checks for any syscall work in entry-common.S */
-#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
-			   _TIF_SYSCALL_RESTARTSYS)
+#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
 
 /*
  * Change these and you break ASM code in entry-common.S

arch/arm/kernel/kprobes-test-arm.c

@@ -187,8 +187,8 @@ void kprobe_arm_test_cases(void)
 	TEST_BF_R ("mov	pc, r",0,2f,"")
 	TEST_BF_RR("mov	pc, r",0,2f,", asl r",1,0,"")
 	TEST_BB(   "sub	pc, pc, #1b-2b+8")
-#if __LINUX_ARM_ARCH__ >= 6
-	TEST_BB(   "sub	pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before ARMv6 */
+#if __LINUX_ARM_ARCH__ == 6 && !defined(CONFIG_CPU_V7)
+	TEST_BB(   "sub	pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before and after ARMv6 */
 #endif
 	TEST_BB_R( "sub	pc, pc, r",14, 1f-2f+8,"")
 	TEST_BB_R( "rsb	pc, r",14,1f-2f+8,", pc")

arch/arm/kernel/perf_event.c

@@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event)
 	     event_requires_mode_exclusion(&event->attr)) {
 		pr_debug("ARM performance counters do not support "
 			 "mode exclusion\n");
-		return -EPERM;
+		return -EOPNOTSUPP;
 	}
 
 	/*

arch/arm/kernel/ptrace.c

@@ -25,7 +25,6 @@
 #include <linux/regset.h>
 #include <linux/audit.h>
 #include <linux/tracehook.h>
-#include <linux/unistd.h>
 
 #include <asm/pgtable.h>
 #include <asm/traps.h>
@@ -918,8 +917,6 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 		audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0,
 				    regs->ARM_r1, regs->ARM_r2, regs->ARM_r3);
 
-	if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS))
-		scno = __NR_restart_syscall - __NR_SYSCALL_BASE;
 	if (!test_thread_flag(TIF_SYSCALL_TRACE))
 		return scno;
 

arch/arm/kernel/signal.c

@@ -27,6 +27,7 @@
  */
 #define SWI_SYS_SIGRETURN	(0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
 #define SWI_SYS_RT_SIGRETURN	(0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
+#define SWI_SYS_RESTART		(0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE)
 
 /*
  * With EABI, the syscall number has to be loaded into r7.
@@ -46,6 +47,18 @@ const unsigned long sigreturn_codes[7] = {
 	MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
 };
 
+/*
+ * Either we support OABI only, or we have EABI with the OABI
+ * compat layer enabled.  In the later case we don't know if
+ * user space is EABI or not, and if not we must not clobber r7.
+ * Always using the OABI syscall solves that issue and works for
+ * all those cases.
+ */
+const unsigned long syscall_restart_code[2] = {
+	SWI_SYS_RESTART,	/* swi	__NR_restart_syscall */
+	0xe49df004,		/* ldr	pc, [sp], #4 */
+};
+
 /*
  * atomically swap in the new signal mask, and wait for a signal.
  */
@@ -592,10 +605,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
 		case -ERESTARTNOHAND:
 		case -ERESTARTSYS:
 		case -ERESTARTNOINTR:
-		case -ERESTART_RESTARTBLOCK:
 			regs->ARM_r0 = regs->ARM_ORIG_r0;
 			regs->ARM_pc = restart_addr;
 			break;
+		case -ERESTART_RESTARTBLOCK:
+			regs->ARM_r0 = -EINTR;
+			break;
 		}
 	}
 
@@ -611,14 +626,12 @@ static void do_signal(struct pt_regs *regs, int syscall)
 		 * debugger has chosen to restart at a different PC.
 		 */
 		if (regs->ARM_pc == restart_addr) {
-			if (retval == -ERESTARTNOHAND ||
-			    retval == -ERESTART_RESTARTBLOCK
+			if (retval == -ERESTARTNOHAND
 			    || (retval == -ERESTARTSYS
 				&& !(ka.sa.sa_flags & SA_RESTART))) {
 				regs->ARM_r0 = -EINTR;
 				regs->ARM_pc = continue_addr;
 			}
-			clear_thread_flag(TIF_SYSCALL_RESTARTSYS);
 		}
 
 		handle_signal(signr, &ka, &info, regs);
@@ -632,8 +645,29 @@ static void do_signal(struct pt_regs *regs, int syscall)
 		 * ignore the restart.
 		 */
 		if (retval == -ERESTART_RESTARTBLOCK
-		    && regs->ARM_pc == restart_addr)
-			set_thread_flag(TIF_SYSCALL_RESTARTSYS);
+		    && regs->ARM_pc == continue_addr) {
+			if (thumb_mode(regs)) {
+				regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE;
+				regs->ARM_pc -= 2;
+			} else {
+#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT)
+				regs->ARM_r7 = __NR_restart_syscall;
+				regs->ARM_pc -= 4;
+#else
+				u32 __user *usp;
+
+				regs->ARM_sp -= 4;
+				usp = (u32 __user *)regs->ARM_sp;
+
+				if (put_user(regs->ARM_pc, usp) == 0) {
+					regs->ARM_pc = KERN_RESTART_CODE;
+				} else {
+					regs->ARM_sp += 4;
+					force_sigsegv(0, current);
+				}
+#endif
+			}
+		}
 	}
 
 	restore_saved_sigmask();

arch/arm/kernel/signal.h

@@ -8,5 +8,7 @@
  * published by the Free Software Foundation.
  */
 #define KERN_SIGRETURN_CODE	(CONFIG_VECTORS_BASE + 0x00000500)
+#define KERN_RESTART_CODE	(KERN_SIGRETURN_CODE + sizeof(sigreturn_codes))
 
 extern const unsigned long sigreturn_codes[7];
+extern const unsigned long syscall_restart_code[2];

arch/arm/kernel/traps.c

@@ -820,6 +820,8 @@ void __init early_trap_init(void *vectors_base)
 	 */
 	memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE),
 	       sigreturn_codes, sizeof(sigreturn_codes));
+	memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE),
+	       syscall_restart_code, sizeof(syscall_restart_code));
 
 	flush_icache_range(vectors, vectors + PAGE_SIZE);
 	modify_domain(DOMAIN_USER, DOMAIN_CLIENT);

arch/arm/kernel/vmlinux.lds.S

@@ -183,7 +183,9 @@ SECTIONS
 	}
 #endif
 
+#ifdef CONFIG_SMP
 	PERCPU_SECTION(L1_CACHE_BYTES)
+#endif
 
 #ifdef CONFIG_XIP_KERNEL
 	__data_loc = ALIGN(4);		/* location in binary */

arch/arm/mach-dove/include/mach/bridge-regs.h

@@ -50,5 +50,6 @@
 #define POWER_MANAGEMENT	(BRIDGE_VIRT_BASE | 0x011c)
 
 #define TIMER_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE         (BRIDGE_PHYS_BASE | 0x0300)
 
 #endif

arch/arm/mach-dove/include/mach/dove.h

@@ -78,6 +78,7 @@
 
 /* North-South Bridge */
 #define BRIDGE_VIRT_BASE	(DOVE_SB_REGS_VIRT_BASE | 0x20000)
+#define BRIDGE_PHYS_BASE	(DOVE_SB_REGS_PHYS_BASE | 0x20000)
 
 /* Cryptographic Engine */
 #define DOVE_CRYPT_PHYS_BASE	(DOVE_SB_REGS_PHYS_BASE | 0x30000)

arch/arm/mach-exynos/Kconfig

@@ -212,7 +212,7 @@ config MACH_SMDKV310
 	select EXYNOS_DEV_SYSMMU
 	select EXYNOS4_DEV_AHCI
 	select SAMSUNG_DEV_KEYPAD
-	select EXYNOS4_DEV_DMA
+	select EXYNOS_DEV_DMA
 	select SAMSUNG_DEV_PWM
 	select EXYNOS4_DEV_USB_OHCI
 	select EXYNOS4_SETUP_FIMD0
@@ -264,7 +264,7 @@ config MACH_UNIVERSAL_C210
 	select S5P_DEV_ONENAND
 	select S5P_DEV_TV
 	select EXYNOS_DEV_SYSMMU
-	select EXYNOS4_DEV_DMA
+	select EXYNOS_DEV_DMA
 	select EXYNOS_DEV_DRM
 	select EXYNOS4_SETUP_FIMD0
 	select EXYNOS4_SETUP_I2C1
@@ -303,7 +303,7 @@ config MACH_NURI
 	select S5P_DEV_MFC
 	select S5P_DEV_USB_EHCI
 	select S5P_SETUP_MIPIPHY
-	select EXYNOS4_DEV_DMA
+	select EXYNOS_DEV_DMA
 	select EXYNOS_DEV_DRM
 	select EXYNOS4_SETUP_FIMC
 	select EXYNOS4_SETUP_FIMD0
@@ -341,7 +341,7 @@ config MACH_ORIGEN
 	select SAMSUNG_DEV_PWM
 	select EXYNOS_DEV_DRM
 	select EXYNOS_DEV_SYSMMU
-	select EXYNOS4_DEV_DMA
+	select EXYNOS_DEV_DMA
 	select EXYNOS4_DEV_USB_OHCI
 	select EXYNOS4_SETUP_FIMD0
 	select EXYNOS4_SETUP_SDHCI

arch/arm/mach-imx/clk-imx35.c

@@ -201,7 +201,6 @@ int __init mx35_clocks_init()
 			pr_err("i.MX35 clk %d: register failed with %ld\n",
 				i, PTR_ERR(clk[i]));
 
-
 	clk_register_clkdev(clk[pata_gate], NULL, "pata_imx");
 	clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0");
 	clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1");
@@ -264,6 +263,14 @@ int __init mx35_clocks_init()
 	clk_prepare_enable(clk[iim_gate]);
 	clk_prepare_enable(clk[emi_gate]);
 
+	/*
+	 * SCC is needed to boot via mmc after a watchdog reset. The clock code
+	 * before conversion to common clk also enabled UART1 (which isn't
+	 * handled here and not needed for mmc) and IIM (which is enabled
+	 * unconditionally above).
+	 */
+	clk_prepare_enable(clk[scc_gate]);
+
 	imx_print_silicon_rev("i.MX35", mx35_revision());
 
 #ifdef CONFIG_MXC_USE_EPIT

arch/arm/mach-imx/clk-imx6q.c

@@ -152,13 +152,14 @@ enum mx6q_clks {
 	ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3,
 	usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg,
 	pll4_audio, pll5_video, pll6_mlb, pll7_usb_host, pll8_enet, ssi1_ipg,
-	ssi2_ipg, ssi3_ipg, clk_max
+	ssi2_ipg, ssi3_ipg, rom,
+	clk_max
 };
 
 static struct clk *clk[clk_max];
 
 static enum mx6q_clks const clks_init_on[] __initconst = {
-	mmdc_ch0_axi, mmdc_ch1_axi,
+	mmdc_ch0_axi, rom,
 };
 
 int __init mx6q_clocks_init(void)
@@ -364,6 +365,7 @@ int __init mx6q_clocks_init(void)
 	clk[gpmi_bch]     = imx_clk_gate2("gpmi_bch",      "usdhc4",            base + 0x78, 26);
 	clk[gpmi_io]      = imx_clk_gate2("gpmi_io",       "enfc",              base + 0x78, 28);
 	clk[gpmi_apb]     = imx_clk_gate2("gpmi_apb",      "usdhc3",            base + 0x78, 30);
+	clk[rom]          = imx_clk_gate2("rom",           "ahb",               base + 0x7c, 0);
 	clk[sata]         = imx_clk_gate2("sata",          "ipg",               base + 0x7c, 4);
 	clk[sdma]         = imx_clk_gate2("sdma",          "ahb",               base + 0x7c, 6);
 	clk[spba]         = imx_clk_gate2("spba",          "ipg",               base + 0x7c, 12);

arch/arm/mach-imx/mach-imx27_visstrim_m10.c

@@ -38,7 +38,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
-#include <asm/system.h>
+#include <asm/system_info.h>
 #include <mach/common.h>
 #include <mach/iomux-mx27.h>
 

arch/arm/mach-mmp/include/mach/gpio-pxa.h

@@ -1,29 +0,0 @@
-#ifndef __ASM_MACH_GPIO_PXA_H
-#define __ASM_MACH_GPIO_PXA_H
-
-#include <mach/addr-map.h>
-#include <mach/cputype.h>
-#include <mach/irqs.h>
-
-#define GPIO_REGS_VIRT	(APB_VIRT_BASE + 0x19000)
-
-#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
-#define GPIO_REG(x)	(*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
-
-#define gpio_to_bank(gpio)	((gpio) >> 5)
-
-/* NOTE: these macros are defined here to make optimization of
- * gpio_{get,set}_value() to work when 'gpio' is a constant.
- * Usage of these macros otherwise is no longer recommended,
- * use generic GPIO API whenever possible.
- */
-#define GPIO_bit(gpio)	(1 << ((gpio) & 0x1f))
-
-#define GPLR(x)		GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00)
-#define GPDR(x)		GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c)
-#define GPSR(x)		GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18)
-#define GPCR(x)		GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24)
-
-#include <plat/gpio-pxa.h>
-
-#endif /* __ASM_MACH_GPIO_PXA_H */

arch/arm/mach-mv78xx0/include/mach/bridge-regs.h

@@ -31,5 +31,6 @@
 #define IRQ_MASK_HIGH_OFF	0x0014
 
 #define TIMER_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0300)
+#define TIMER_PHYS_BASE		(BRIDGE_PHYS_BASE | 0x0300)
 
 #endif

arch/arm/mach-mv78xx0/include/mach/mv78xx0.h

@@ -42,6 +42,7 @@
 #define MV78XX0_CORE0_REGS_PHYS_BASE	0xf1020000
 #define MV78XX0_CORE1_REGS_PHYS_BASE	0xf1024000
 #define MV78XX0_CORE_REGS_VIRT_BASE	0xfe400000
+#define MV78XX0_CORE_REGS_PHYS_BASE	0xfe400000
 #define MV78XX0_CORE_REGS_SIZE		SZ_16K
 
 #define MV78XX0_PCIE_IO_PHYS_BASE(i)	(0xf0800000 + ((i) << 20))
@@ -59,6 +60,7 @@
  * Core-specific peripheral registers.
  */
 #define BRIDGE_VIRT_BASE	(MV78XX0_CORE_REGS_VIRT_BASE)
+#define BRIDGE_PHYS_BASE	(MV78XX0_CORE_REGS_PHYS_BASE)
 
 /*
  * Register Map

arch/arm/mach-mxs/mach-apx4devkit.c

@@ -205,6 +205,16 @@ static int apx4devkit_phy_fixup(struct phy_device *phy)
 	return 0;
 }
 
+static void __init apx4devkit_fec_phy_clk_enable(void)
+{
+	struct clk *clk;
+
+	/* Enable fec phy clock */
+	clk = clk_get_sys("enet_out", NULL);
+	if (!IS_ERR(clk))
+		clk_prepare_enable(clk);
+}
+
 static void __init apx4devkit_init(void)
 {
 	mx28_soc_init();
@@ -225,6 +235,7 @@ static void __init apx4devkit_init(void)
 	phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
 			apx4devkit_phy_fixup);
 
+	apx4devkit_fec_phy_clk_enable();
 	mx28_add_fec(0, &mx28_fec_pdata);
 
 	mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata);

arch/arm/mach-omap2/board-flash.c

@@ -97,11 +97,6 @@ __init board_onenand_init(struct mtd_partition *onenand_parts,
 
 	gpmc_onenand_init(&board_onenand_data);
 }
-#else
-void
-__init board_onenand_init(struct mtd_partition *nor_parts, u8 nr_parts, u8 cs)
-{
-}
 #endif /* CONFIG_MTD_ONENAND_OMAP2 || CONFIG_MTD_ONENAND_OMAP2_MODULE */
 
 #if defined(CONFIG_MTD_NAND_OMAP2) || \

arch/arm/mach-omap2/board-overo.c

@@ -494,8 +494,8 @@ static void __init overo_init(void)
 
 	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
 	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
-	omap_hsmmc_init(mmc);
 	overo_i2c_init();
+	omap_hsmmc_init(mmc);
 	omap_display_init(&overo_dss_data);
 	omap_serial_init();
 	omap_sdrc_init(mt46h32m32lf6_sdrc_params,

arch/arm/mach-omap2/clock44xx_data.c

@@ -3417,9 +3417,12 @@ int __init omap4xxx_clk_init(void)
 	if (cpu_is_omap443x()) {
 		cpu_mask = RATE_IN_4430;
 		cpu_clkflg = CK_443X;
-	} else if (cpu_is_omap446x()) {
+	} else if (cpu_is_omap446x() || cpu_is_omap447x()) {
 		cpu_mask = RATE_IN_4460 | RATE_IN_4430;
 		cpu_clkflg = CK_446X | CK_443X;
+
+		if (cpu_is_omap447x())
+			pr_warn("WARNING: OMAP4470 clock data incomplete!\n");
 	} else {
 		return 0;
 	}

arch/arm/mach-omap2/clockdomain.h

@@ -31,12 +31,16 @@
  *
  * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this
  *     clockdomain.  (Currently, this applies to OMAP3 clockdomains only.)
+ * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is
+ *     active whenever the MPU is active.  True for interconnects and
+ *     the WKUP clockdomains.
  */
 #define CLKDM_CAN_FORCE_SLEEP			(1 << 0)
 #define CLKDM_CAN_FORCE_WAKEUP			(1 << 1)
 #define CLKDM_CAN_ENABLE_AUTO			(1 << 2)
 #define CLKDM_CAN_DISABLE_AUTO			(1 << 3)
 #define CLKDM_NO_AUTODEPS			(1 << 4)
+#define CLKDM_ACTIVE_WITH_MPU			(1 << 5)
 
 #define CLKDM_CAN_HWSUP		(CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO)
 #define CLKDM_CAN_SWSUP		(CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP)

arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c

@@ -88,4 +88,5 @@ struct clockdomain wkup_common_clkdm = {
 	.name		= "wkup_clkdm",
 	.pwrdm		= { .name = "wkup_pwrdm" },
 	.dep_bit	= OMAP_EN_WKUP_SHIFT,
+	.flags		= CLKDM_ACTIVE_WITH_MPU,
 };

arch/arm/mach-omap2/clockdomains44xx_data.c

@@ -381,7 +381,7 @@ static struct clockdomain l4_wkup_44xx_clkdm = {
 	.cm_inst	  = OMAP4430_PRM_WKUP_CM_INST,
 	.clkdm_offs	  = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS,
 	.dep_bit	  = OMAP4430_L4WKUP_STATDEP_SHIFT,
-	.flags		  = CLKDM_CAN_HWSUP,
+	.flags		  = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU,
 };
 
 static struct clockdomain emu_sys_44xx_clkdm = {

arch/arm/mach-omap2/omap_hwmod.c

@@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap
  * _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG
  * @oh: struct omap_hwmod *
  *
- * If module is marked as SWSUP_SIDLE, force the module out of slave
- * idle; otherwise, configure it for smart-idle.  If module is marked
- * as SWSUP_MSUSPEND, force the module out of master standby;
- * otherwise, configure it for smart-standby.  No return value.
+ * Ensure that the OCP_SYSCONFIG register for the IP block represented
+ * by @oh is set to indicate to the PRCM that the IP block is active.
+ * Usually this means placing the module into smart-idle mode and
+ * smart-standby, but if there is a bug in the automatic idle handling
+ * for the IP block, it may need to be placed into the force-idle or
+ * no-idle variants of these modes.  No return value.
  */
 static void _enable_sysc(struct omap_hwmod *oh)
 {
 	u8 idlemode, sf;
 	u32 v;
+	bool clkdm_act;
 
 	if (!oh->class->sysc)
 		return;
@@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh)
 	sf = oh->class->sysc->sysc_flags;
 
 	if (sf & SYSC_HAS_SIDLEMODE) {
-		idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
-			HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
+		clkdm_act = ((oh->clkdm &&
+			      oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) ||
+			     (oh->_clk && oh->_clk->clkdm &&
+			      oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU));
+		if (clkdm_act && !(oh->class->sysc->idlemodes &
+				   (SIDLE_SMART | SIDLE_SMART_WKUP)))
+			idlemode = HWMOD_IDLEMODE_FORCE;
+		else
+			idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
+				HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART;
 		_set_slave_idlemode(oh, idlemode, &v);
 	}
 
@@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh)
 	sf = oh->class->sysc->sysc_flags;
 
 	if (sf & SYSC_HAS_SIDLEMODE) {
-		idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ?
-			HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART;
+		/* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */
+		if (oh->flags & HWMOD_SWSUP_SIDLE ||
+		    !(oh->class->sysc->idlemodes &
+		      (SIDLE_SMART | SIDLE_SMART_WKUP)))
+			idlemode = HWMOD_IDLEMODE_FORCE;
+		else
+			idlemode = HWMOD_IDLEMODE_SMART;
 		_set_slave_idlemode(oh, idlemode, &v);
 	}
 

arch/arm/mach-omap2/omap_hwmod_44xx_data.c

@@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = {
 	{ .role = "pad_fck", .clk = "pad_clks_ck" },
-	{ .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" },
+	{ .role = "prcm_fck", .clk = "mcbsp1_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp1_hwmod = {
@@ -1963,7 +1963,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp2_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = {
 	{ .role = "pad_fck", .clk = "pad_clks_ck" },
-	{ .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" },
+	{ .role = "prcm_fck", .clk = "mcbsp2_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp2_hwmod = {
@@ -1998,7 +1998,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp3_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = {
 	{ .role = "pad_fck", .clk = "pad_clks_ck" },
-	{ .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" },
+	{ .role = "prcm_fck", .clk = "mcbsp3_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp3_hwmod = {
@@ -2033,7 +2033,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp4_sdma_reqs[] = {
 
 static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = {
 	{ .role = "pad_fck", .clk = "pad_clks_ck" },
-	{ .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" },
+	{ .role = "prcm_fck", .clk = "mcbsp4_sync_mux_ck" },
 };
 
 static struct omap_hwmod omap44xx_mcbsp4_hwmod = {
@@ -3864,7 +3864,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_2 = {
 };
 
 /* usb_host_fs -> l3_main_2 */
-static struct omap_hwmod_ocp_if omap44xx_usb_host_fs__l3_main_2 = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_usb_host_fs__l3_main_2 = {
 	.master		= &omap44xx_usb_host_fs_hwmod,
 	.slave		= &omap44xx_l3_main_2_hwmod,
 	.clk		= "l3_div_ck",
@@ -3922,7 +3922,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_3 = {
 };
 
 /* aess -> l4_abe */
-static struct omap_hwmod_ocp_if omap44xx_aess__l4_abe = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_aess__l4_abe = {
 	.master		= &omap44xx_aess_hwmod,
 	.slave		= &omap44xx_l4_abe_hwmod,
 	.clk		= "ocp_abe_iclk",
@@ -4013,7 +4013,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_addrs[] = {
 };
 
 /* l4_abe -> aess */
-static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess = {
 	.master		= &omap44xx_l4_abe_hwmod,
 	.slave		= &omap44xx_aess_hwmod,
 	.clk		= "ocp_abe_iclk",
@@ -4031,7 +4031,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_dma_addrs[] = {
 };
 
 /* l4_abe -> aess (dma) */
-static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess_dma = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess_dma = {
 	.master		= &omap44xx_l4_abe_hwmod,
 	.slave		= &omap44xx_aess_hwmod,
 	.clk		= "ocp_abe_iclk",
@@ -5857,7 +5857,7 @@ static struct omap_hwmod_addr_space omap44xx_usb_host_fs_addrs[] = {
 };
 
 /* l4_cfg -> usb_host_fs */
-static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_fs = {
+static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_cfg__usb_host_fs = {
 	.master		= &omap44xx_l4_cfg_hwmod,
 	.slave		= &omap44xx_usb_host_fs_hwmod,
 	.clk		= "l4_div_ck",
@@ -6014,13 +6014,13 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_iva__l3_main_2,
 	&omap44xx_l3_main_1__l3_main_2,
 	&omap44xx_l4_cfg__l3_main_2,
-	&omap44xx_usb_host_fs__l3_main_2,
+	/* &omap44xx_usb_host_fs__l3_main_2, */
 	&omap44xx_usb_host_hs__l3_main_2,
 	&omap44xx_usb_otg_hs__l3_main_2,
 	&omap44xx_l3_main_1__l3_main_3,
 	&omap44xx_l3_main_2__l3_main_3,
 	&omap44xx_l4_cfg__l3_main_3,
-	&omap44xx_aess__l4_abe,
+	/* &omap44xx_aess__l4_abe, */
 	&omap44xx_dsp__l4_abe,
 	&omap44xx_l3_main_1__l4_abe,
 	&omap44xx_mpu__l4_abe,
@@ -6029,8 +6029,8 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_l4_cfg__l4_wkup,
 	&omap44xx_mpu__mpu_private,
 	&omap44xx_l4_cfg__ocp_wp_noc,
-	&omap44xx_l4_abe__aess,
-	&omap44xx_l4_abe__aess_dma,
+	/* &omap44xx_l4_abe__aess, */
+	/* &omap44xx_l4_abe__aess_dma, */
 	&omap44xx_l3_main_2__c2c,
 	&omap44xx_l4_wkup__counter_32k,
 	&omap44xx_l4_cfg__ctrl_module_core,
@@ -6136,7 +6136,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = {
 	&omap44xx_l4_per__uart2,
 	&omap44xx_l4_per__uart3,
 	&omap44xx_l4_per__uart4,
-	&omap44xx_l4_cfg__usb_host_fs,
+	/* &omap44xx_l4_cfg__usb_host_fs, */
 	&omap44xx_l4_cfg__usb_host_hs,
 	&omap44xx_l4_cfg__usb_otg_hs,
 	&omap44xx_l4_cfg__usb_tll_hs,

arch/arm/mach-omap2/twl-common.c

@@ -32,6 +32,7 @@
 #include "twl-common.h"
 #include "pm.h"
 #include "voltage.h"
+#include "mux.h"
 
 static struct i2c_board_info __initdata pmic_i2c_board_info = {
 	.addr		= 0x48,
@@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type,
 		    struct twl6040_platform_data *twl6040_data, int twl6040_irq)
 {
 	/* PMIC part*/
+	omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
 	strncpy(omap4_i2c1_board_info[0].type, pmic_type,
 		sizeof(omap4_i2c1_board_info[0].type));
 	omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N;

arch/arm/mach-pxa/hx4700.c

@@ -127,7 +127,11 @@ static unsigned long hx4700_pin_config[] __initdata = {
 	GPIO19_SSP2_SCLK,
 	GPIO86_SSP2_RXD,
 	GPIO87_SSP2_TXD,
-	GPIO88_GPIO,
+	GPIO88_GPIO | MFP_LPM_DRIVE_HIGH,	/* TSC2046_CS */
+
+	/* BQ24022 Regulator */
+	GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT,	/* BQ24022_nCHARGE_EN */
+	GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT,	/* BQ24022_ISET2 */
 
 	/* HX4700 specific input GPIOs */
 	GPIO12_GPIO | WAKEUP_ON_EDGE_RISE,	/* ASIC3_IRQ */
@@ -135,6 +139,10 @@ static unsigned long hx4700_pin_config[] __initdata = {
 	GPIO14_GPIO,	/* nWLAN_IRQ */
 
 	/* HX4700 specific output GPIOs */
+	GPIO61_GPIO | MFP_LPM_DRIVE_HIGH,	/* W3220_nRESET */
+	GPIO71_GPIO | MFP_LPM_DRIVE_HIGH,	/* ASIC3_nRESET */
+	GPIO81_GPIO | MFP_LPM_DRIVE_HIGH,	/* CPU_GP_nRESET */
+	GPIO116_GPIO | MFP_LPM_DRIVE_HIGH,	/* CPU_HW_nRESET */
 	GPIO102_GPIO | MFP_LPM_DRIVE_LOW,	/* SYNAPTICS_POWER_ON */
 
 	GPIO10_GPIO,	/* GSM_IRQ */
@@ -872,14 +880,19 @@ static struct gpio global_gpios[] = {
 	{ GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" },
 	{ GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" },
 	{ GPIO32_HX4700_RS232_ON,         GPIOF_OUT_INIT_HIGH, "RS232_ON" },
+	{ GPIO61_HX4700_W3220_nRESET,     GPIOF_OUT_INIT_HIGH, "W3220_nRESET" },
 	{ GPIO71_HX4700_ASIC3_nRESET,     GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" },
+	{ GPIO81_HX4700_CPU_GP_nRESET,    GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" },
 	{ GPIO82_HX4700_EUART_RESET,      GPIOF_OUT_INIT_HIGH, "EUART_RESET" },
+	{ GPIO116_HX4700_CPU_HW_nRESET,   GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" },
 };
 
 static void __init hx4700_init(void)
 {
 	int ret;
 
+	PCFR = PCFR_GPR_EN | PCFR_OPDE;
+
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config));
 	gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1);
 	ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios));

arch/arm/mach-shmobile/board-armadillo800eva.c

@@ -779,6 +779,7 @@ DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva")
 	.init_irq	= r8a7740_init_irq,
 	.handle_irq	= shmobile_handle_irq_intc,
 	.init_machine	= eva_init,
+	.init_late	= shmobile_init_late,
 	.timer		= &shmobile_timer,
 	.dt_compat	= eva_boards_compat_dt,
 MACHINE_END

arch/arm/mach-shmobile/board-kzm9d.c

@@ -80,6 +80,7 @@ DT_MACHINE_START(KZM9D_DT, "kzm9d")
 	.init_irq	= emev2_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= kzm9d_add_standard_devices,
+	.init_late	= shmobile_init_late,
 	.timer		= &shmobile_timer,
 	.dt_compat	= kzm9d_boards_compat_dt,
 MACHINE_END

arch/arm/mach-shmobile/board-kzm9g.c

@@ -455,6 +455,7 @@ DT_MACHINE_START(KZM9G_DT, "kzm9g")
 	.init_irq	= sh73a0_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.init_machine	= kzm_init,
+	.init_late	= shmobile_init_late,
 	.timer		= &shmobile_timer,
 	.dt_compat	= kzm9g_boards_compat_dt,
 MACHINE_END

arch/arm/mach-shmobile/board-mackerel.c

@@ -1512,6 +1512,9 @@ static void __init mackerel_init(void)
 	gpio_request(GPIO_FN_SDHID0_1, NULL);
 	gpio_request(GPIO_FN_SDHID0_0, NULL);
 
+	/* SDHI0 PORT172 card-detect IRQ26 */
+	gpio_request(GPIO_FN_IRQ26_172, NULL);
+
 #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE)
 	/* enable SDHI1 */
 	gpio_request(GPIO_FN_SDHICMD1, NULL);

arch/arm/mach-shmobile/clock-sh73a0.c

@@ -475,9 +475,9 @@ static struct clk *late_main_clks[] = {
 
 enum { MSTP001,
 	MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100,
-	MSTP219,
+	MSTP219, MSTP218,
 	MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
-	MSTP331, MSTP329, MSTP325, MSTP323, MSTP318,
+	MSTP331, MSTP329, MSTP325, MSTP323,
 	MSTP314, MSTP313, MSTP312, MSTP311,
 	MSTP303, MSTP302, MSTP301, MSTP300,
 	MSTP411, MSTP410, MSTP403,
@@ -497,6 +497,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */
 	[MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
 	[MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */
+	[MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */
 	[MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
 	[MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
 	[MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
@@ -508,7 +509,6 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
 	[MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */
 	[MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */
-	[MSTP318] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 18, 0), /* SY-DMAC */
 	[MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */
 	[MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */
 	[MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */
@@ -552,6 +552,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* I2C0 */
 	CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
 	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */
+	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
 	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
@@ -563,7 +564,6 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */
 	CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */
 	CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */
-	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP318]), /* SY-DMAC */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
 	CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */

arch/arm/mach-shmobile/intc-r8a7779.c

@@ -35,6 +35,9 @@
 #define INT2SMSKCR3 0xfe7822ac
 #define INT2SMSKCR4 0xfe7822b0
 
+#define INT2NTSR0 0xfe700060
+#define INT2NTSR1 0xfe700064
+
 static int r8a7779_set_wake(struct irq_data *data, unsigned int on)
 {
 	return 0; /* always allow wakeup */
@@ -49,6 +52,10 @@ void __init r8a7779_init_irq(void)
 	gic_init(0, 29, gic_dist_base, gic_cpu_base);
 	gic_arch_extn.irq_set_wake = r8a7779_set_wake;
 
+	/* route all interrupts to ARM */
+	__raw_writel(0xffffffff, INT2NTSR0);
+	__raw_writel(0x3fffffff, INT2NTSR1);
+
 	/* unmask all known interrupts in INTCS2 */
 	__raw_writel(0xfffffff0, INT2SMSKCR0);
 	__raw_writel(0xfff7ffff, INT2SMSKCR1);

arch/arm/mach-shmobile/platsmp.c

@@ -22,10 +22,20 @@
 #include <mach/common.h>
 #include <mach/emev2.h>
 
+#ifdef CONFIG_ARCH_SH73A0
 #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \
 			of_machine_is_compatible("renesas,sh73a0"))
+#else
+#define is_sh73a0() (0)
+#endif
+
 #define is_r8a7779() machine_is_marzen()
+
+#ifdef CONFIG_ARCH_EMEV2
 #define is_emev2() of_machine_is_compatible("renesas,emev2")
+#else
+#define is_emev2() (0)
+#endif
 
 static unsigned int __init shmobile_smp_get_core_count(void)
 {

arch/arm/mach-shmobile/setup-sh7372.c

@@ -484,7 +484,7 @@ static const struct sh_dmae_slave_config sh7372_dmae_slaves[] = {
 	},
 };
 
-#define SH7372_CHCLR 0x220
+#define SH7372_CHCLR (0x220 - 0x20)
 
 static const struct sh_dmae_channel sh7372_dmae_channels[] = {
 	{

arch/arm/mach-ux500/board-mop500.c

@@ -625,11 +625,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = {
 	&ab8500_device,
 };
 
-static struct platform_device *snowball_of_platform_devs[] __initdata = {
-	&snowball_led_dev,
-	&snowball_key_dev,
-};
-
 static void __init mop500_init_machine(void)
 {
 	struct device *parent = NULL;
@@ -769,6 +764,11 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_UX500_DT
 
+static struct platform_device *snowball_of_platform_devs[] __initdata = {
+	&snowball_led_dev,
+	&snowball_key_dev,
+};
+
 struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires DMA and call-back bindings. */
 	OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat),
@@ -786,6 +786,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
 	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
 	OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
+	/* Requires device name bindings. */
+	OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL),
 	{},
 };
 

arch/arm/mach-ux500/timer.c

@@ -63,8 +63,10 @@ static void __init ux500_timer_init(void)
 
 	/* TODO: Once MTU has been DT:ed place code above into else. */
 	if (of_have_populated_dt()) {
+#ifdef CONFIG_OF
 		np = of_find_matching_node(NULL, prcmu_timer_of_match);
 		if (!np)
+#endif
 			goto dt_fail;
 
 		tmp_base = of_iomap(np, 0);

arch/arm/mach-versatile/pci.c

@@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void)
 static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq;
-	int devslot = PCI_SLOT(dev->devfn);
 
 	/* slot,  pin,	irq
 	 *  24     1     27

arch/arm/mm/dma-mapping.c

@@ -1067,7 +1067,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, gfp_t
 		return NULL;
 
 	while (count) {
-		int j, order = __ffs(count);
+		int j, order = __fls(count);
 
 		pages[i] = alloc_pages(gfp | __GFP_NOWARN, order);
 		while (!pages[i] && order)

arch/arm/mm/mm.h

@@ -64,7 +64,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page
 #ifdef CONFIG_ZONE_DMA
 extern phys_addr_t arm_dma_limit;
 #else
-#define arm_dma_limit ((u32)~0)
+#define arm_dma_limit ((phys_addr_t)~0)
 #endif
 
 extern phys_addr_t arm_lowmem_limit;

arch/arm/mm/mmu.c

@@ -791,6 +791,79 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
 	}
 }
 
+#ifndef CONFIG_ARM_LPAE
+
+/*
+ * The Linux PMD is made of two consecutive section entries covering 2MB
+ * (see definition in include/asm/pgtable-2level.h).  However a call to
+ * create_mapping() may optimize static mappings by using individual
+ * 1MB section mappings.  This leaves the actual PMD potentially half
+ * initialized if the top or bottom section entry isn't used, leaving it
+ * open to problems if a subsequent ioremap() or vmalloc() tries to use
+ * the virtual space left free by that unused section entry.
+ *
+ * Let's avoid the issue by inserting dummy vm entries covering the unused
+ * PMD halves once the static mappings are in place.
+ */
+
+static void __init pmd_empty_section_gap(unsigned long addr)
+{
+	struct vm_struct *vm;
+
+	vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm));
+	vm->addr = (void *)addr;
+	vm->size = SECTION_SIZE;
+	vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING;
+	vm->caller = pmd_empty_section_gap;
+	vm_area_add_early(vm);
+}
+
+static void __init fill_pmd_gaps(void)
+{
+	struct vm_struct *vm;
+	unsigned long addr, next = 0;
+	pmd_t *pmd;
+
+	/* we're still single threaded hence no lock needed here */
+	for (vm = vmlist; vm; vm = vm->next) {
+		if (!(vm->flags & VM_ARM_STATIC_MAPPING))
+			continue;
+		addr = (unsigned long)vm->addr;
+		if (addr < next)
+			continue;
+
+		/*
+		 * Check if this vm starts on an odd section boundary.
+		 * If so and the first section entry for this PMD is free
+		 * then we block the corresponding virtual address.
+		 */
+		if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+			pmd = pmd_off_k(addr);
+			if (pmd_none(*pmd))
+				pmd_empty_section_gap(addr & PMD_MASK);
+		}
+
+		/*
+		 * Then check if this vm ends on an odd section boundary.
+		 * If so and the second section entry for this PMD is empty
+		 * then we block the corresponding virtual address.
+		 */
+		addr += vm->size;
+		if ((addr & ~PMD_MASK) == SECTION_SIZE) {
+			pmd = pmd_off_k(addr) + 1;
+			if (pmd_none(*pmd))
+				pmd_empty_section_gap(addr);
+		}
+
+		/* no need to look at any vm entry until we hit the next PMD */
+		next = (addr + PMD_SIZE - 1) & PMD_MASK;
+	}
+}
+
+#else
+#define fill_pmd_gaps() do { } while (0)
+#endif
+
 static void * __initdata vmalloc_min =
 	(void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET);
 
@@ -1072,6 +1145,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc)
 	 */
 	if (mdesc->map_io)
 		mdesc->map_io();
+	fill_pmd_gaps();
 
 	/*
 	 * Finally flush the caches and tlb to ensure that we're in a

arch/arm/plat-mxc/include/mach/mx2_cam.h

@@ -23,6 +23,7 @@
 #ifndef __MACH_MX2_CAM_H_
 #define __MACH_MX2_CAM_H_
 
+#define MX2_CAMERA_SWAP16		(1 << 0)
 #define MX2_CAMERA_EXT_VSYNC		(1 << 1)
 #define MX2_CAMERA_CCIR			(1 << 2)
 #define MX2_CAMERA_CCIR_INTERLACE	(1 << 3)
@@ -30,6 +31,7 @@
 #define MX2_CAMERA_GATED_CLOCK		(1 << 5)
 #define MX2_CAMERA_INV_DATA		(1 << 6)
 #define MX2_CAMERA_PCLK_SAMPLE_RISING	(1 << 7)
+#define MX2_CAMERA_PACK_DIR_MSB		(1 << 8)
 
 /**
  * struct mx2_camera_platform_data - optional platform data for mx2_camera

arch/arm/plat-samsung/include/plat/map-s3c.h

@@ -22,7 +22,7 @@
 #define S3C24XX_VA_WATCHDOG	S3C_VA_WATCHDOG
 
 #define S3C2412_VA_SSMC		S3C_ADDR_CPU(0x00000000)
-#define S3C2412_VA_EBI		S3C_ADDR_CPU(0x00010000)
+#define S3C2412_VA_EBI		S3C_ADDR_CPU(0x00100000)
 
 #define S3C2410_PA_UART		(0x50000000)
 #define S3C24XX_PA_UART		S3C2410_PA_UART

arch/arm/plat-samsung/include/plat/watchdog-reset.h

@@ -25,7 +25,7 @@ static inline void arch_wdt_reset(void)
 
 	__raw_writel(0, S3C2410_WTCON);	  /* disable watchdog, to be safe  */
 
-	if (s3c2410_wdtclk)
+	if (!IS_ERR(s3c2410_wdtclk))
 		clk_enable(s3c2410_wdtclk);
 
 	/* put initial values into count and data */

arch/h8300/include/asm/pgtable.h

@@ -70,4 +70,7 @@ extern int is_in_rom(unsigned long);
 #define	VMALLOC_END	0xffffffff
 
 #define arch_enter_lazy_cpu_mode()    do {} while (0)
+
+#include <asm-generic/pgtable.h>
+
 #endif /* _H8300_PGTABLE_H */

arch/h8300/include/asm/uaccess.h

@@ -100,7 +100,6 @@ extern int __put_user_bad(void);
 	break;							\
     default:							\
 	__gu_err = __get_user_bad();				\
-	__gu_val = 0;						\
 	break;							\
     }								\
     (x) = __gu_val;						\
@@ -159,4 +158,6 @@ clear_user(void *to, unsigned long n)
 	return 0;
 }
 
+#define __clear_user	clear_user
+
 #endif /* _H8300_UACCESS_H */

arch/h8300/kernel/signal.c

@@ -447,7 +447,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
  * want to handle. Thus you cannot kill init even with a SIGKILL even by
  * mistake.
  */
-statis void do_signal(struct pt_regs *regs)
+static void do_signal(struct pt_regs *regs)
 {
 	siginfo_t info;
 	int signr;

arch/h8300/kernel/time.c

@@ -27,6 +27,7 @@
 #include <linux/profile.h>
 
 #include <asm/io.h>
+#include <asm/irq_regs.h>
 #include <asm/timer.h>
 
 #define	TICK_SIZE (tick_nsec / 1000)

arch/m68k/platform/coldfire/clk.c

@@ -42,4 +42,11 @@ unsigned long clk_get_rate(struct clk *clk)
 	return MCF_CLK;
 }
 EXPORT_SYMBOL(clk_get_rate);
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(devm_clk_get);
+
 /***************************************************************************/

arch/mips/pci/pci-lantiq.c

@@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
 
 	/* setup reset gpio used by pci */
 	reset_gpio = of_get_named_gpio(node, "gpio-reset", 0);
-	if (reset_gpio > 0)
+	if (gpio_is_valid(reset_gpio))
 		devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset");
 
 	/* enable auto-switching between PCI and EBU */
@@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev)
 	ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN);
 
 	/* toggle reset pin */
-	if (reset_gpio > 0) {
+	if (gpio_is_valid(reset_gpio)) {
 		__gpio_set_value(reset_gpio, 0);
 		wmb();
 		mdelay(1);

arch/mn10300/include/asm/ptrace.h

@@ -81,9 +81,6 @@ struct pt_regs {
 #define PTRACE_GETFPREGS          14
 #define PTRACE_SETFPREGS          15
 
-/* options set using PTRACE_SETOPTIONS */
-#define PTRACE_O_TRACESYSGOOD     0x00000001
-
 #ifdef __KERNEL__
 
 #define user_mode(regs)			(((regs)->epsw & EPSW_nSL) == EPSW_nSL)

arch/mn10300/include/asm/thread_info.h

@@ -123,7 +123,7 @@ static inline unsigned long current_stack_pointer(void)
 }
 
 #ifndef CONFIG_KGDB
-void arch_release_thread_info(struct thread_info *ti)
+void arch_release_thread_info(struct thread_info *ti);
 #endif
 #define get_thread_info(ti)	get_task_struct((ti)->task)
 #define put_thread_info(ti)	put_task_struct((ti)->task)

arch/mn10300/include/asm/timex.h

@@ -11,7 +11,6 @@
 #ifndef _ASM_TIMEX_H
 #define _ASM_TIMEX_H
 
-#include <asm/hardirq.h>
 #include <unit/timex.h>
 
 #define TICK_SIZE (tick_nsec / 1000)
@@ -30,16 +29,6 @@ static inline cycles_t get_cycles(void)
 extern int init_clockevents(void);
 extern int init_clocksource(void);
 
-static inline void setup_jiffies_interrupt(int irq,
-					   struct irqaction *action)
-{
-	u16 tmp;
-	setup_irq(irq, action);
-	set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
-	GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
-	tmp = GxICR(irq);
-}
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_TIMEX_H */

arch/mn10300/kernel/cevt-mn10300.c

@@ -70,6 +70,16 @@ static void event_handler(struct clock_event_device *dev)
 {
 }
 
+static inline void setup_jiffies_interrupt(int irq,
+					   struct irqaction *action)
+{
+	u16 tmp;
+	setup_irq(irq, action);
+	set_intr_level(irq, NUM2GxICR_LEVEL(CONFIG_TIMER_IRQ_LEVEL));
+	GxICR(irq) |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
+	tmp = GxICR(irq);
+}
+
 int __init init_clockevents(void)
 {
 	struct clock_event_device *cd;

arch/mn10300/kernel/internal.h

@@ -9,6 +9,8 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#include <linux/irqreturn.h>
+
 struct clocksource;
 struct clock_event_device;
 

arch/mn10300/kernel/irq.c

@@ -170,9 +170,9 @@ mn10300_cpupic_setaffinity(struct irq_data *d, const struct cpumask *mask,
 	case SC1TXIRQ:
 #ifdef CONFIG_MN10300_TTYSM1_TIMER12
 	case TM12IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER9
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER9)
 	case TM9IRQ:
-#elif CONFIG_MN10300_TTYSM1_TIMER3
+#elif defined(CONFIG_MN10300_TTYSM1_TIMER3)
 	case TM3IRQ:
 #endif /* CONFIG_MN10300_TTYSM1_TIMER12 */
 #endif /* CONFIG_MN10300_TTYSM1 */

arch/mn10300/kernel/traps.c

@@ -26,6 +26,7 @@
 #include <linux/kdebug.h>
 #include <linux/bug.h>
 #include <linux/irq.h>
+#include <linux/export.h>
 #include <asm/processor.h>
 #include <linux/uaccess.h>
 #include <asm/io.h>

arch/mn10300/mm/dma-alloc.c

@@ -15,6 +15,7 @@
 #include <linux/string.h>
 #include <linux/pci.h>
 #include <linux/gfp.h>
+#include <linux/export.h>
 #include <asm/io.h>
 
 static unsigned long pci_sram_allocated = 0xbc000000;

arch/mn10300/unit-asb2303/include/unit/timex.h

@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>

arch/mn10300/unit-asb2303/smc91111.c

@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 
 #include <asm/io.h>
+#include <asm/irq.h>
 #include <asm/timex.h>
 #include <asm/processor.h>
 #include <asm/intctl-regs.h>

arch/mn10300/unit-asb2305/include/unit/timex.h

@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>

arch/mn10300/unit-asb2305/unit-init.c

@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <asm/io.h>
+#include <asm/irq.h>
 #include <asm/setup.h>
 #include <asm/processor.h>
 #include <asm/intctl-regs.h>

arch/mn10300/unit-asb2364/include/unit/timex.h

@@ -11,10 +11,6 @@
 #ifndef _ASM_UNIT_TIMEX_H
 #define _ASM_UNIT_TIMEX_H
 
-#ifndef __ASSEMBLY__
-#include <linux/irq.h>
-#endif /* __ASSEMBLY__ */
-
 #include <asm/timer-regs.h>
 #include <unit/clock.h>
 #include <asm/param.h>

arch/powerpc/include/asm/hw_irq.h

@@ -86,8 +86,8 @@ static inline bool arch_irqs_disabled(void)
 }
 
 #ifdef CONFIG_PPC_BOOK3E
-#define __hard_irq_enable()	asm volatile("wrteei 1" : : : "memory");
-#define __hard_irq_disable()	asm volatile("wrteei 0" : : : "memory");
+#define __hard_irq_enable()	asm volatile("wrteei 1" : : : "memory")
+#define __hard_irq_disable()	asm volatile("wrteei 0" : : : "memory")
 #else
 #define __hard_irq_enable()	__mtmsrd(local_paca->kernel_msr | MSR_EE, 1)
 #define __hard_irq_disable()	__mtmsrd(local_paca->kernel_msr, 1)
@@ -103,6 +103,11 @@ static inline void hard_irq_disable(void)
 /* include/linux/interrupt.h needs hard_irq_disable to be a macro */
 #define hard_irq_disable	hard_irq_disable
 
+static inline bool lazy_irq_pending(void)
+{
+	return !!(get_paca()->irq_happened & ~PACA_IRQ_HARD_DIS);
+}
+
 /*
  * This is called by asynchronous interrupts to conditionally
  * re-enable hard interrupts when soft-disabled after having
@@ -120,6 +125,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs)
 	return !regs->softe;
 }
 
+extern bool prep_irq_for_idle(void);
+
 #else /* CONFIG_PPC64 */
 
 #define SET_MSR_EE(x)	mtmsr(x)

arch/powerpc/kernel/entry_64.S

@@ -558,27 +558,54 @@ _GLOBAL(ret_from_except_lite)
 	mtmsrd	r10,1		  /* Update machine state */
 #endif /* CONFIG_PPC_BOOK3E */
 
-#ifdef CONFIG_PREEMPT
 	clrrdi	r9,r1,THREAD_SHIFT	/* current_thread_info() */
-	li	r0,_TIF_NEED_RESCHED	/* bits to check */
 	ld	r3,_MSR(r1)
 	ld	r4,TI_FLAGS(r9)
-	/* Move MSR_PR bit in r3 to _TIF_SIGPENDING position in r0 */
-	rlwimi	r0,r3,32+TIF_SIGPENDING-MSR_PR_LG,_TIF_SIGPENDING
-	and.	r0,r4,r0	/* check NEED_RESCHED and maybe SIGPENDING */
-	bne	do_work
-
-#else /* !CONFIG_PREEMPT */
-	ld	r3,_MSR(r1)	/* Returning to user mode? */
 	andi.	r3,r3,MSR_PR
-	beq	restore		/* if not, just restore regs and return */
+	beq	resume_kernel
 
 	/* Check current_thread_info()->flags */
+	andi.	r0,r4,_TIF_USER_WORK_MASK
+	beq	restore
+
+	andi.	r0,r4,_TIF_NEED_RESCHED
+	beq	1f
+	bl	.restore_interrupts
+	bl	.schedule
+	b	.ret_from_except_lite
+
+1:	bl	.save_nvgprs
+	bl	.restore_interrupts
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	.do_notify_resume
+	b	.ret_from_except
+
+resume_kernel:
+#ifdef CONFIG_PREEMPT
+	/* Check if we need to preempt */
+	andi.	r0,r4,_TIF_NEED_RESCHED
+	beq+	restore
+	/* Check that preempt_count() == 0 and interrupts are enabled */
+	lwz	r8,TI_PREEMPT(r9)
+	cmpwi	cr1,r8,0
+	ld	r0,SOFTE(r1)
+	cmpdi	r0,0
+	crandc	eq,cr1*4+eq,eq
+	bne	restore
+
+	/*
+	 * Here we are preempting the current task. We want to make
+	 * sure we are soft-disabled first
+	 */
+	SOFT_DISABLE_INTS(r3,r4)
+1:	bl	.preempt_schedule_irq
+
+	/* Re-test flags and eventually loop */
 	clrrdi	r9,r1,THREAD_SHIFT
 	ld	r4,TI_FLAGS(r9)
-	andi.	r0,r4,_TIF_USER_WORK_MASK
-	bne	do_work
-#endif /* !CONFIG_PREEMPT */
+	andi.	r0,r4,_TIF_NEED_RESCHED
+	bne	1b
+#endif /* CONFIG_PREEMPT */
 
 	.globl	fast_exc_return_irq
 fast_exc_return_irq:
@@ -759,50 +786,6 @@ restore_check_irq_replay:
 #endif /* CONFIG_PPC_BOOK3E */
 1:	b	.ret_from_except /* What else to do here ? */
  
-
-
-3:
-do_work:
-#ifdef CONFIG_PREEMPT
-	andi.	r0,r3,MSR_PR	/* Returning to user mode? */
-	bne	user_work
-	/* Check that preempt_count() == 0 and interrupts are enabled */
-	lwz	r8,TI_PREEMPT(r9)
-	cmpwi	cr1,r8,0
-	ld	r0,SOFTE(r1)
-	cmpdi	r0,0
-	crandc	eq,cr1*4+eq,eq
-	bne	restore
-
-	/*
-	 * Here we are preempting the current task. We want to make
-	 * sure we are soft-disabled first
-	 */
-	SOFT_DISABLE_INTS(r3,r4)
-1:	bl	.preempt_schedule_irq
-
-	/* Re-test flags and eventually loop */
-	clrrdi	r9,r1,THREAD_SHIFT
-	ld	r4,TI_FLAGS(r9)
-	andi.	r0,r4,_TIF_NEED_RESCHED
-	bne	1b
-	b	restore
-
-user_work:
-#endif /* CONFIG_PREEMPT */
-
-	andi.	r0,r4,_TIF_NEED_RESCHED
-	beq	1f
-	bl	.restore_interrupts
-	bl	.schedule
-	b	.ret_from_except_lite
-
-1:	bl	.save_nvgprs
-	bl	.restore_interrupts
-	addi	r3,r1,STACK_FRAME_OVERHEAD
-	bl	.do_notify_resume
-	b	.ret_from_except
-
 unrecov_restore:
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	.unrecoverable_exception

arch/powerpc/kernel/irq.c

@@ -229,7 +229,7 @@ notrace void arch_local_irq_restore(unsigned long en)
 	 */
 	if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
 		__hard_irq_disable();
-#ifdef CONFIG_TRACE_IRQFLAG
+#ifdef CONFIG_TRACE_IRQFLAGS
 	else {
 		/*
 		 * We should already be hard disabled here. We had bugs
@@ -277,7 +277,7 @@ EXPORT_SYMBOL(arch_local_irq_restore);
  * NOTE: This is called with interrupts hard disabled but not marked
  * as such in paca->irq_happened, so we need to resync this.
  */
-void restore_interrupts(void)
+void notrace restore_interrupts(void)
 {
 	if (irqs_disabled()) {
 		local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
@@ -286,6 +286,52 @@ void restore_interrupts(void)
 		__hard_irq_enable();
 }
 
+/*
+ * This is a helper to use when about to go into idle low-power
+ * when the latter has the side effect of re-enabling interrupts
+ * (such as calling H_CEDE under pHyp).
+ *
+ * You call this function with interrupts soft-disabled (this is
+ * already the case when ppc_md.power_save is called). The function
+ * will return whether to enter power save or just return.
+ *
+ * In the former case, it will have notified lockdep of interrupts
+ * being re-enabled and generally sanitized the lazy irq state,
+ * and in the latter case it will leave with interrupts hard
+ * disabled and marked as such, so the local_irq_enable() call
+ * in cpu_idle() will properly re-enable everything.
+ */
+bool prep_irq_for_idle(void)
+{
+	/*
+	 * First we need to hard disable to ensure no interrupt
+	 * occurs before we effectively enter the low power state
+	 */
+	hard_irq_disable();
+
+	/*
+	 * If anything happened while we were soft-disabled,
+	 * we return now and do not enter the low power state.
+	 */
+	if (lazy_irq_pending())
+		return false;
+
+	/* Tell lockdep we are about to re-enable */
+	trace_hardirqs_on();
+
+	/*
+	 * Mark interrupts as soft-enabled and clear the
+	 * PACA_IRQ_HARD_DIS from the pending mask since we
+	 * are about to hard enable as well as a side effect
+	 * of entering the low power state.
+	 */
+	local_paca->irq_happened &= ~PACA_IRQ_HARD_DIS;
+	local_paca->soft_enabled = 1;
+
+	/* Tell the caller to enter the low power state */
+	return true;
+}
+
 #endif /* CONFIG_PPC64 */
 
 int arch_show_interrupts(struct seq_file *p, int prec)

arch/powerpc/kernel/prom_init.c

@@ -1312,7 +1312,7 @@ static struct opal_secondary_data {
 
 extern char opal_secondary_entry;
 
-static void prom_query_opal(void)
+static void __init prom_query_opal(void)
 {
 	long rc;
 
@@ -1436,7 +1436,7 @@ static void __init prom_opal_hold_cpus(void)
 	prom_debug("prom_opal_hold_cpus: end...\n");
 }
 
-static void prom_opal_takeover(void)
+static void __init prom_opal_takeover(void)
 {
 	struct opal_secondary_data *data = &RELOC(opal_secondary_data);
 	struct opal_takeover_args *args = &data->args;

arch/powerpc/kvm/book3s_hv_rmhandlers.S

@@ -810,7 +810,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	lwz	r3,VCORE_NAPPING_THREADS(r5)
 	lwz	r4,VCPU_PTID(r9)
 	li	r0,1
-	sldi	r0,r0,r4
+	sld	r0,r0,r4
 	andc.	r3,r3,r0		/* no sense IPI'ing ourselves */
 	beq	43f
 	mulli	r4,r4,PACA_SIZE		/* get paca for thread 0 */

arch/powerpc/kvm/book3s_pr_papr.c

@@ -241,6 +241,7 @@ int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd)
 	case H_PUT_TCE:
 		return kvmppc_h_pr_put_tce(vcpu);
 	case H_CEDE:
+		vcpu->arch.shared->msr |= MSR_EE;
 		kvm_vcpu_block(vcpu);
 		clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
 		vcpu->stat.halt_wakeup++;

arch/powerpc/mm/numa.c

@@ -635,11 +635,11 @@ static inline int __init read_usm_ranges(const u32 **usm)
  */
 static void __init parse_drconf_memory(struct device_node *memory)
 {
-	const u32 *dm, *usm;
+	const u32 *uninitialized_var(dm), *usm;
 	unsigned int n, rc, ranges, is_kexec_kdump = 0;
 	unsigned long lmb_size, base, size, sz;
 	int nid;
-	struct assoc_arrays aa;
+	struct assoc_arrays aa = { .arrays = NULL };
 
 	n = of_get_drconf_memory(memory, &dm);
 	if (!n)

arch/powerpc/net/bpf_jit_64.S

@@ -105,6 +105,7 @@ sk_load_byte_msh_positive_offset:
 	mr	r4, r_addr;					\
 	li	r6, SIZE;					\
 	bl	skb_copy_bits;					\
+	nop;							\
 	/* R3 = 0 on success */					\
 	addi	r1, r1, BPF_PPC_SLOWPATH_FRAME;			\
 	ld	r0, 16(r1);					\
@@ -156,6 +157,7 @@ bpf_slow_path_byte_msh:
 	mr	r4, r_addr;					\
 	li	r5, SIZE;					\
 	bl	bpf_internal_load_pointer_neg_helper;		\
+	nop;							\
 	/* R3 != 0 on success */				\
 	addi	r1, r1, BPF_PPC_SLOWPATH_FRAME;			\
 	ld	r0, 16(r1);					\

arch/powerpc/platforms/cell/pervasive.c

@@ -42,11 +42,9 @@ static void cbe_power_save(void)
 {
 	unsigned long ctrl, thread_switch_control;
 
-	/*
-	 * We need to hard disable interrupts, the local_irq_enable() done by
-	 * our caller upon return will hard re-enable.
-	 */
-	hard_irq_disable();
+	/* Ensure our interrupt state is properly tracked */
+	if (!prep_irq_for_idle())
+		return;
 
 	ctrl = mfspr(SPRN_CTRLF);
 
@@ -81,6 +79,9 @@ static void cbe_power_save(void)
 	 */
 	ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
 	mtspr(SPRN_CTRLT, ctrl);
+
+	/* Re-enable interrupts in MSR */
+	__hard_irq_enable();
 }
 
 static int cbe_system_reset_exception(struct pt_regs *regs)

arch/powerpc/platforms/pseries/iommu.c

@@ -106,7 +106,7 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
 		tcep++;
 	}
 
-	if (tbl->it_type == TCE_PCI_SWINV_CREATE)
+	if (tbl->it_type & TCE_PCI_SWINV_CREATE)
 		tce_invalidate_pSeries_sw(tbl, tces, tcep - 1);
 	return 0;
 }
@@ -121,7 +121,7 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
 	while (npages--)
 		*(tcep++) = 0;
 
-	if (tbl->it_type == TCE_PCI_SWINV_FREE)
+	if (tbl->it_type & TCE_PCI_SWINV_FREE)
 		tce_invalidate_pSeries_sw(tbl, tces, tcep - 1);
 }