Messages in this thread Patch in this message | | | From | Richard Kuo <> | Date | Tue, 18 Oct 2011 22:48:27 -0500 | Subject | [PATCH v5 36/36] Add extra arch overrides to asm-generic/checksum.h |
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There are plausible reasons for architectures to provide their own versions of csum_partial_copy_nocheck and csum_tcpudp_magic. By protecting these, the architecture can still re-use the asm-generic checksum.h, instead of copying it.
Signed-off-by: Linas Vepstas <linas@codeaurora.org> Acked-by: Arnd Bergmann <arnd@arndb.de> --- include/asm-generic/checksum.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h index 4647c76..c084767 100644 --- a/include/asm-generic/checksum.h +++ b/include/asm-generic/checksum.h @@ -33,8 +33,10 @@ extern __wsum csum_partial_copy(const void *src, void *dst, int len, __wsum sum) extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst, int len, __wsum sum, int *csum_err); +#ifndef csum_partial_copy_nocheck #define csum_partial_copy_nocheck(src, dst, len, sum) \ csum_partial_copy((src), (dst), (len), (sum)) +#endif /* * This is a version of ip_compute_csum() optimized for IP headers, @@ -63,12 +65,14 @@ csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, __wsum sum); #endif +#ifndef csum_tcpudp_magic static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, __wsum sum) { return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum)); } +#endif /* * this routine is used for miscellaneous IP-like checksums, mainly -- 1.7.1
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