69 lines
1.9 KiB
Diff
69 lines
1.9 KiB
Diff
From d72e9cb0b85791306e5af8ff2a5ac410ae00efe7 Mon Sep 17 00:00:00 2001
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From: Nicholas Mc Guire <der.herr@hofr.at>
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Date: Sat, 8 Feb 2014 12:39:20 +0100
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Subject: [PATCH] rt: Cleanup of unnecessary do while 0 in read/write _lock()
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.0/patches-4.0.5-rt3.tar.xz
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With the migration pushdonw a few of the do{ }while(0)
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loops became obsolete but got left over - this patch
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only removes this fallout.
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Patch applies on top of 3.12.9-rt13
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Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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include/linux/rwlock_rt.h | 20 ++++----------------
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1 file changed, 4 insertions(+), 16 deletions(-)
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--- a/include/linux/rwlock_rt.h
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+++ b/include/linux/rwlock_rt.h
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@@ -42,10 +42,7 @@ extern void __rt_rwlock_init(rwlock_t *r
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flags = rt_write_lock_irqsave(lock); \
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} while (0)
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-#define read_lock(lock) \
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- do { \
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- rt_read_lock(lock); \
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- } while (0)
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+#define read_lock(lock) rt_read_lock(lock)
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#define read_lock_bh(lock) \
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do { \
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@@ -55,10 +52,7 @@ extern void __rt_rwlock_init(rwlock_t *r
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#define read_lock_irq(lock) read_lock(lock)
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-#define write_lock(lock) \
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- do { \
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- rt_write_lock(lock); \
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- } while (0)
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+#define write_lock(lock) rt_write_lock(lock)
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#define write_lock_bh(lock) \
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do { \
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@@ -68,10 +62,7 @@ extern void __rt_rwlock_init(rwlock_t *r
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#define write_lock_irq(lock) write_lock(lock)
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-#define read_unlock(lock) \
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- do { \
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- rt_read_unlock(lock); \
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- } while (0)
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+#define read_unlock(lock) rt_read_unlock(lock)
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#define read_unlock_bh(lock) \
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do { \
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@@ -81,10 +72,7 @@ extern void __rt_rwlock_init(rwlock_t *r
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#define read_unlock_irq(lock) read_unlock(lock)
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-#define write_unlock(lock) \
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- do { \
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- rt_write_unlock(lock); \
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- } while (0)
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+#define write_unlock(lock) rt_write_unlock(lock)
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#define write_unlock_bh(lock) \
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do { \
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