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lib/checksum.c: fix build for generic csum_tcpudp_nofold

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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: 150ae0e946 ("lib/checksum.c: fix carry in csum_tcpudp_nofold")
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Karl Beldan <[email protected]>
Cc: Eric Dumazet <[email protected]>
Cc: David S. Miller <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
karl beldan 2015-01-29 11:10:22 +01:00 • committed by David S. Miller
commit 9ce357795e
1 changed files with 9 additions and 9 deletions
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18
lib/checksum.c
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@ -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,