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| author | karl beldan <karl.beldan@gmail.com> | 2015-01-29 11:10:22 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-02-11 14:48:17 +0800 |
| commit | 1c3f3138ea06ce56ae257b8d39e3968e3d38cbd8 (patch) | |
| tree | 9007a301f73397ebef927823010109e6b6a3f968 | |
| parent | 30d8c8352812e924bbee639ca3a25e35daf74db3 (diff) | |
| download | lwn-1c3f3138ea06ce56ae257b8d39e3968e3d38cbd8.tar.gz lwn-1c3f3138ea06ce56ae257b8d39e3968e3d38cbd8.zip | |
lib/checksum.c: fix build for generic csum_tcpudp_nofold
commit 9ce357795ef208faa0d59894d9d119a7434e37f3 upstream.
Fixed commit added from64to32 under _#ifndef do_csum_ but used it
under _#ifndef csum_tcpudp_nofold_, breaking some builds (Fengguang's
robot reported TILEGX's). Move from64to32 under the latter.
Fixes: 150ae0e94634 ("lib/checksum.c: fix carry in csum_tcpudp_nofold")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | lib/checksum.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/lib/checksum.c b/lib/checksum.c index fcf38943132c..8b39e86dbab5 100644 --- a/lib/checksum.c +++ b/lib/checksum.c @@ -47,15 +47,6 @@ static inline unsigned short from32to16(unsigned int x) return x; } -static inline u32 from64to32(u64 x) -{ - /* add up 32-bit and 32-bit for 32+c bit */ - x = (x & 0xffffffff) + (x >> 32); - /* add up carry.. */ - x = (x & 0xffffffff) + (x >> 32); - return (u32)x; -} - static unsigned int do_csum(const unsigned char *buff, int len) { int odd; @@ -190,6 +181,15 @@ csum_partial_copy(const void *src, void *dst, int len, __wsum sum) EXPORT_SYMBOL(csum_partial_copy); #ifndef csum_tcpudp_nofold +static inline u32 from64to32(u64 x) +{ + /* add up 32-bit and 32-bit for 32+c bit */ + x = (x & 0xffffffff) + (x >> 32); + /* add up carry.. */ + x = (x & 0xffffffff) + (x >> 32); + return (u32)x; +} + __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, |