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authorPeter Zijlstra <peterz@infradead.org>2016-06-17 17:05:38 +0200
committerIngo Molnar <mingo@kernel.org>2016-06-20 11:25:50 +0200
commit86a664d58f3ba2398a378dc9da6d4cfa737d2281 (patch)
tree2e57c99f7f1a38bd43f41eb0021b78e0ce90d5af /arch/m68k
parent4aef66c8ae91d00affeeb24cfb176b53354ac969 (diff)
downloadop-kernel-dev-86a664d58f3ba2398a378dc9da6d4cfa737d2281.zip
op-kernel-dev-86a664d58f3ba2398a378dc9da6d4cfa737d2281.tar.gz
locking/atomic, arch/m68k: Remove comment
I misread the inline asm. It uses a rare construct to provide an input to a previously declared output to do the atomic_read(). Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/include/asm/atomic.h7
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index 3e03de7..cf4c3a7 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -38,13 +38,6 @@ static inline void atomic_##op(int i, atomic_t *v) \
#ifdef CONFIG_RMW_INSNS
-/*
- * Am I reading these CAS loops right in that %2 is the old value and the first
- * iteration uses an uninitialized value?
- *
- * Would it not make sense to add: tmp = atomic_read(v); to avoid this?
- */
-
#define ATOMIC_OP_RETURN(op, c_op, asm_op) \
static inline int atomic_##op##_return(int i, atomic_t *v) \
{ \
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