| Message ID | alpine.DEB.2.02.1405021527550.19635@tomh.mtv.corp.google.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/arch/x86/include/asm/checksum_64.h b/arch/x86/include/asm/checksum_64.h index 3581761..cd00e17 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; }
From Eric Dumazet: 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> --- arch/x86/include/asm/checksum_64.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)