From: Mao Minkai <maominkai@wxiat.com> Sunway inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I56W9F -------------------------------- When destination is not 8-byte aligned, csum_partial_cfu_dest_unaligned() should be used to avoid kernel unaligned exception. Fixes: 2fcadd2861b4 ("sw64: optimize ip checksum calculation") Signed-off-by: Mao Minkai <maominkai@wxiat.com> Signed-off-by: Gu Zitao <guzitao@wxiat.com> --- arch/sw_64/lib/csum_partial_copy.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sw_64/lib/csum_partial_copy.c b/arch/sw_64/lib/csum_partial_copy.c index 441ae5575de5..5e5274e82b2b 100644 --- a/arch/sw_64/lib/csum_partial_copy.c +++ b/arch/sw_64/lib/csum_partial_copy.c @@ -128,9 +128,9 @@ static __wsum __csum_and_copy(const void __user *src, void *dst, int len) (const unsigned long __user *) src, (unsigned long *) dst, len-8); } else { - checksum = csum_partial_cfu_dest_aligned( + checksum = csum_partial_cfu_dest_unaligned( (const unsigned long __user *) src, - (unsigned long *) dst, len-8); + (unsigned long *) dst, doff, len-8); } return (__force __wsum)from64to16(checksum); } -- 2.17.1