Commit 20fce54f authored by Tom Herbert's avatar Tom Herbert Committed by David S. Miller

sparc: csum_add for Sparc

versions.
Signed-off-by: default avatarTom Herbert <therbert@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4405b4d6
...@@ -238,4 +238,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len) ...@@ -238,4 +238,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len)
return csum_fold(csum_partial(buff, len, 0)); return csum_fold(csum_partial(buff, len, 0));
} }
#define HAVE_ARCH_CSUM_ADD
static inline __wsum csum_add(__wsum csum, __wsum addend)
{
__asm__ __volatile__(
"addcc %0, %1, %0\n"
"addx %0, %%g0, %0"
: "=r" (csum)
: "r" (addend), "0" (csum));
return csum;
}
#endif /* !(__SPARC_CHECKSUM_H) */ #endif /* !(__SPARC_CHECKSUM_H) */
...@@ -164,4 +164,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len) ...@@ -164,4 +164,16 @@ static inline __sum16 ip_compute_csum(const void *buff, int len)
return csum_fold(csum_partial(buff, len, 0)); return csum_fold(csum_partial(buff, len, 0));
} }
#define HAVE_ARCH_CSUM_ADD
static inline __wsum csum_add(__wsum csum, __wsum addend)
{
__asm__ __volatile__(
"addcc %0, %1, %0\n"
"addx %0, %%g0, %0"
: "=r" (csum)
: "r" (addend), "0" (csum));
return csum;
}
#endif /* !(__SPARC64_CHECKSUM_H) */ #endif /* !(__SPARC64_CHECKSUM_H) */
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