capabilities: delete all CAP_INIT macros

The CAP_INIT macros of INH, BSET, and EFF made sense at one point in time,
but now days they aren't helping.  Just open code the logic in the
init_cred.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>

include/linux/capability.h

@@ -421,9 +421,6 @@ extern const kernel_cap_t __cap_init_eff_set;
 
 #endif /* _KERNEL_CAPABILITY_U32S != 2 */
 
-#define CAP_INIT_INH_SET    CAP_EMPTY_SET
-#define CAP_INIT_EFF_SET    CAP_FULL_SET
-
 # define cap_clear(c)         do { (c) = __cap_empty_set; } while (0)
 
 #define cap_raise(c, flag)  ((c).cap[CAP_TO_INDEX(flag)] |= CAP_TO_MASK(flag))

include/linux/init_task.h

@@ -83,13 +83,6 @@ extern struct group_info init_groups;
 #define INIT_IDS
 #endif
 
-/*
- * Because of the reduced scope of CAP_SETPCAP when filesystem
- * capabilities are in effect, it is safe to allow CAP_SETPCAP to
- * be available in the default configuration.
- */
-# define CAP_INIT_BSET  CAP_FULL_SET
-
 #ifdef CONFIG_RCU_BOOST
 #define INIT_TASK_RCU_BOOST()						\
 	.rcu_boost_mutex = NULL,

kernel/cred.c

@@ -49,10 +49,10 @@ struct cred init_cred = {
 	.magic			= CRED_MAGIC,
 #endif
 	.securebits		= SECUREBITS_DEFAULT,
-	.cap_inheritable	= CAP_INIT_INH_SET,
+	.cap_inheritable	= CAP_EMPTY_SET,
 	.cap_permitted		= CAP_FULL_SET,
-	.cap_effective		= CAP_INIT_EFF_SET,
-	.cap_bset		= CAP_INIT_BSET,
+	.cap_effective		= CAP_FULL_SET,
+	.cap_bset		= CAP_FULL_SET,
 	.user			= INIT_USER,
 	.group_info		= &init_groups,
 #ifdef CONFIG_KEYS