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authorWill Deacon <will.deacon@arm.com>2014-02-04 12:29:13 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2014-02-07 16:46:07 +0000
commit95c4189689f92fba7ecf9097173404d4928c6e9b (patch)
treea2abbb0b084fab81afc4f87ebe809bf03ffade12 /arch/arm64/include/asm/futex.h
parentarm64: atomics: fix use of acquire + release for full barrier semantics (diff)
downloadlinux-dev-95c4189689f92fba7ecf9097173404d4928c6e9b.tar.xz
linux-dev-95c4189689f92fba7ecf9097173404d4928c6e9b.zip
arm64: asm: remove redundant "cc" clobbers
cbnz/tbnz don't update the condition flags, so remove the "cc" clobbers from inline asm blocks that only use these instructions to implement conditional branches. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to '')
-rw-r--r--arch/arm64/include/asm/futex.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h
index 572193d0005d..5f750dc96e0f 100644
--- a/arch/arm64/include/asm/futex.h
+++ b/arch/arm64/include/asm/futex.h
@@ -41,7 +41,7 @@
" .popsection\n" \
: "=&r" (ret), "=&r" (oldval), "+Q" (*uaddr), "=&r" (tmp) \
: "r" (oparg), "Ir" (-EFAULT) \
- : "cc", "memory")
+ : "memory")
static inline int
futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
@@ -129,7 +129,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
" .popsection\n"
: "+r" (ret), "=&r" (val), "+Q" (*uaddr), "=&r" (tmp)
: "r" (oldval), "r" (newval), "Ir" (-EFAULT)
- : "cc", "memory");
+ : "memory");
*uval = val;
return ret;