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authorPeter Zijlstra <peterz@infradead.org>2014-09-02 22:21:26 +0200
committerIngo Molnar <mingo@kernel.org>2014-09-10 11:45:06 +0200
commitda4c54457e6d8262423aded4bcbccc4103049506 (patch)
tree0dfed5231a18a1caa9b855ba526b24d046b2c295 /arch/mips/include/asm/atomic.h
parentcaa17d49f9a5cc09b3bbb101dc640f914f3b4ff7 (diff)
locking, mips: Fix atomics
The patch folding the atomic ops had two silly fails in the _return primitives. Fixes: ef31563e950c ("locking,arch,mips: Fold atomic_ops") Reported-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Hannes Reinecke <hare@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Maciej W. Rozycki <macro@codesourcery.com> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Link: http://lkml.kernel.org/r/20140902202126.GA3190@worktop.ger.corp.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/include/asm/atomic.h')
-rw-r--r--arch/mips/include/asm/atomic.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 476fe3b5dfc6..f3ee721fe61d 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -93,7 +93,7 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
" " #asm_op " %0, %1, %3 \n" \
" sc %0, %2 \n" \
" beqzl %0, 1b \n" \
- " addu %0, %1, %3 \n" \
+ " " #asm_op " %0, %1, %3 \n" \
" .set mips0 \n" \
: "=&r" (result), "=&r" (temp), "+m" (v->counter) \
: "Ir" (i)); \
@@ -111,7 +111,7 @@ static __inline__ int atomic_##op##_return(int i, atomic_t * v) \
: "Ir" (i)); \
} while (unlikely(!result)); \
\
- result = temp + i; \
+ result = temp; result c_op i; \
} else { \
unsigned long flags; \
\
@@ -387,7 +387,7 @@ static __inline__ long atomic64_##op##_return(long i, atomic64_t * v) \
: "memory"); \
} while (unlikely(!result)); \
\
- result = temp + i; \
+ result = temp; result c_op i; \
} else { \
unsigned long flags; \
\