diff options
| author | Shile Zhang <shile.zhang@nokia.com> | 2017-02-04 17:03:40 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-14 09:28:17 +0100 |
| commit | 4aff028047156e58b08b06346a19063c723c565a (patch) | |
| tree | 18a471d51d99a4d2abdc7fc1c7b3b68c0f722b77 /arch | |
| parent | d57cb693c592d5148551b3ac858f14eb9e4812f3 (diff) | |
powerpc/64: Fix checksum folding in csum_add()
[ Upstream commit 6ad966d7303b70165228dba1ee8da1a05c10eefe ]
Paul's patch to fix checksum folding, commit b492f7e4e07a ("powerpc/64:
Fix checksum folding in csum_tcpudp_nofold and ip_fast_csum_nofold")
missed a case in csum_add(). Fix it.
Signed-off-by: Shile Zhang <shile.zhang@nokia.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/checksum.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h index 1e8fceb308a5..a67bb09585f4 100644 --- a/arch/powerpc/include/asm/checksum.h +++ b/arch/powerpc/include/asm/checksum.h @@ -100,7 +100,7 @@ static inline __wsum csum_add(__wsum csum, __wsum addend) #ifdef __powerpc64__ res += (__force u64)addend; - return (__force __wsum)((u32)res + (res >> 32)); + return (__force __wsum) from64to32(res); #else asm("addc %0,%0,%1;" "addze %0,%0;" |