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authorThomas Gleixner <tglx@linutronix.de>2011-01-23 17:30:09 +0300
committerThomas Gleixner <tglx@linutronix.de>2011-01-27 14:30:38 +0300
commitd04fa5a3ba06c3b7a1c4a6860d0fa4825507a755 (patch)
treee17ac53c5bb9b60839d4722533fb0b6ba1c87027
parent10389a15e25fd4784d42de7e0e3fc8c242f2011d (diff)
downloadlinux-d04fa5a3ba06c3b7a1c4a6860d0fa4825507a755.tar.xz
locking: Remove deprecated lock initializers
Last users are gone. Remove the left overs. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--Documentation/spinlocks.txt24
-rw-r--r--include/linux/rwlock_types.h8
-rw-r--r--include/linux/spinlock_types.h8
-rwxr-xr-xscripts/checkpatch.pl5
4 files changed, 1 insertions, 44 deletions
diff --git a/Documentation/spinlocks.txt b/Documentation/spinlocks.txt
index 178c831b907d..2e3c64b1a6a5 100644
--- a/Documentation/spinlocks.txt
+++ b/Documentation/spinlocks.txt
@@ -86,7 +86,7 @@ to change the variables it has to get an exclusive write lock.
The routines look the same as above:
- rwlock_t xxx_lock = RW_LOCK_UNLOCKED;
+ rwlock_t xxx_lock = __RW_LOCK_UNLOCKED(xxx_lock);
unsigned long flags;
@@ -196,25 +196,3 @@ appropriate:
For static initialization, use DEFINE_SPINLOCK() / DEFINE_RWLOCK() or
__SPIN_LOCK_UNLOCKED() / __RW_LOCK_UNLOCKED() as appropriate.
-
-SPIN_LOCK_UNLOCKED and RW_LOCK_UNLOCKED are deprecated. These interfere
-with lockdep state tracking.
-
-Most of the time, you can simply turn:
- static spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED;
-into:
- static DEFINE_SPINLOCK(xxx_lock);
-
-Static structure member variables go from:
-
- struct foo bar {
- .lock = SPIN_LOCK_UNLOCKED;
- };
-
-to:
-
- struct foo bar {
- .lock = __SPIN_LOCK_UNLOCKED(bar.lock);
- };
-
-Declaration of static rw_locks undergo a similar transformation.
diff --git a/include/linux/rwlock_types.h b/include/linux/rwlock_types.h
index bd31808c7d8e..cc0072e93e36 100644
--- a/include/linux/rwlock_types.h
+++ b/include/linux/rwlock_types.h
@@ -43,14 +43,6 @@ typedef struct {
RW_DEP_MAP_INIT(lockname) }
#endif
-/*
- * RW_LOCK_UNLOCKED defeat lockdep state tracking and is hence
- * deprecated.
- *
- * Please use DEFINE_RWLOCK() or __RW_LOCK_UNLOCKED() as appropriate.
- */
-#define RW_LOCK_UNLOCKED __RW_LOCK_UNLOCKED(old_style_rw_init)
-
#define DEFINE_RWLOCK(x) rwlock_t x = __RW_LOCK_UNLOCKED(x)
#endif /* __LINUX_RWLOCK_TYPES_H */
diff --git a/include/linux/spinlock_types.h b/include/linux/spinlock_types.h
index 851b7783720d..73548eb13a5d 100644
--- a/include/linux/spinlock_types.h
+++ b/include/linux/spinlock_types.h
@@ -81,14 +81,6 @@ typedef struct spinlock {
#define __SPIN_LOCK_UNLOCKED(lockname) \
(spinlock_t ) __SPIN_LOCK_INITIALIZER(lockname)
-/*
- * SPIN_LOCK_UNLOCKED defeats lockdep state tracking and is hence
- * deprecated.
- * Please use DEFINE_SPINLOCK() or __SPIN_LOCK_UNLOCKED() as
- * appropriate.
- */
-#define SPIN_LOCK_UNLOCKED __SPIN_LOCK_UNLOCKED(old_style_spin_init)
-
#define DEFINE_SPINLOCK(x) spinlock_t x = __SPIN_LOCK_UNLOCKED(x)
#include <linux/rwlock_types.h>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4c0383da1c9a..58848e3e392c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2654,11 +2654,6 @@ sub process {
WARN("Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr);
}
-# SPIN_LOCK_UNLOCKED & RW_LOCK_UNLOCKED are deprecated
- if ($line =~ /\b(SPIN_LOCK_UNLOCKED|RW_LOCK_UNLOCKED)/) {
- ERROR("Use of $1 is deprecated: see Documentation/spinlocks.txt\n" . $herecurr);
- }
-
# warn about #if 0
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
CHK("if this code is redundant consider removing it\n" .