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[IA64] implement csum_ipv6_magic for ia64.

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The asm version is 4.4 times faster than the generic C version and
10X smaller in code size.

Signed-off-by: Ken Chen <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Chen, Kenneth W 2006-11-10 13:17:50 -08:00 • committed by Tony Luck
commit 007d77d0c5
2 changed files with 59 additions and 2 deletions
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6
include/asm-ia64/checksum.h
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@ -70,4 +70,10 @@ static inline __sum16 csum_fold(__wsum csum)
return (__force __sum16)~sum;
}
#define _HAVE_ARCH_IPV6_CSUM 1
struct in6_addr;
extern unsigned short int csum_ipv6_magic(struct in6_addr *saddr,
struct in6_addr *daddr, __u32 len, unsigned short proto,
unsigned int csum);
#endif /* _ASM_IA64_CHECKSUM_H */