Arches can have more a efficient implementation of csum_partial. Signed-off-by: Charlie Jenkins <charlie@xxxxxxxxxxxx> --- include/asm-generic/checksum.h | 2 ++ lib/checksum.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h index ad928cce268b..3309830ba2cb 100644 --- a/include/asm-generic/checksum.h +++ b/include/asm-generic/checksum.h @@ -4,6 +4,7 @@ #include <linux/bitops.h> +#ifndef csum_partial /* * computes the checksum of a memory block at buff, length len, * and adds in "sum" (32-bit) @@ -17,6 +18,7 @@ * it's best to have buff aligned on a 32-bit boundary */ extern __wsum csum_partial(const void *buff, int len, __wsum sum); +#endif #ifndef ip_fast_csum /* diff --git a/lib/checksum.c b/lib/checksum.c index 6860d6b05a17..c115a9ac71d9 100644 --- a/lib/checksum.c +++ b/lib/checksum.c @@ -110,6 +110,7 @@ __sum16 ip_fast_csum(const void *iph, unsigned int ihl) EXPORT_SYMBOL(ip_fast_csum); #endif +#ifndef csum_partial /* * computes the checksum of a memory block at buff, length len, * and adds in "sum" (32-bit) @@ -134,6 +135,7 @@ __wsum csum_partial(const void *buff, int len, __wsum wsum) return (__force __wsum)result; } EXPORT_SYMBOL(csum_partial); +#endif /* * this routine is used for miscellaneous IP-like checksums, mainly -- 2.34.1
