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arch,arc: Convert smp_mb__*()
The arc mb() implementation is a compiler barrier(), therefore it all doesn't matter one way or the other. Simply remove the existing definitions and use whatever is generated by the defaults. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-ua48a59wri3ybz1rz8i7uvbr@git.kernel.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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2 changed files with 1 additions and 9 deletions
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@ -190,11 +190,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
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#endif /* !CONFIG_ARC_HAS_LLSC */
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#define smp_mb__before_atomic_dec() barrier()
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#define smp_mb__after_atomic_dec() barrier()
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#define smp_mb__before_atomic_inc() barrier()
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#define smp_mb__after_atomic_inc() barrier()
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/**
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* __atomic_add_unless - add unless the number is a given value
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* @v: pointer of type atomic_t
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@ -19,6 +19,7 @@
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#include <linux/types.h>
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#include <linux/compiler.h>
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#include <asm/barrier.h>
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/*
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* Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns.
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@ -496,10 +497,6 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word)
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*/
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#define ffz(x) __ffs(~(x))
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/* TODO does this affect uni-processor code */
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#define smp_mb__before_clear_bit() barrier()
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#define smp_mb__after_clear_bit() barrier()
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#include <asm-generic/bitops/hweight.h>
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#include <asm-generic/bitops/fls64.h>
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#include <asm-generic/bitops/sched.h>
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