diff options
| author | Tom Herbert <therbert@google.com> | 2014-05-02 16:28:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-05 15:26:29 -0400 |
| commit | 4405b4d635aa2c5c7eb8873696b54811531e0d08 (patch) | |
| tree | 4238c40c31fea0f3e7bfb84dd9f027cf9572cb7f | |
| parent | a278534406ab13e4ecbca8941eb4c104a5971cd7 (diff) | |
net: Change x86_64 add32_with_carry to allow memory operand
Note add32_with_carry(a, b) is suboptimal, as it forces
a and b in registers.
b could be a memory or a register operand.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | arch/x86/include/asm/checksum_64.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/checksum_64.h b/arch/x86/include/asm/checksum_64.h index 3581761bd86c..cd00e1774491 100644 --- a/arch/x86/include/asm/checksum_64.h +++ b/arch/x86/include/asm/checksum_64.h @@ -184,7 +184,7 @@ static inline unsigned add32_with_carry(unsigned a, unsigned b) asm("addl %2,%0\n\t" "adcl $0,%0" : "=r" (a) - : "0" (a), "r" (b)); + : "0" (a), "rm" (b)); return a; } |