From: Daniel Jurgens <[email protected]>
Use htons instead of unconditionally byte swapping nexthdr. On a little
endian systems shifting the byte is correct behavior, but it results in
incorrect csums on big endian architectures.
Fixes: f8c6455bb04b ('net/mlx4_en: Extend checksum offloading by CHECKSUM
COMPLETE')
Signed-off-by: Daniel Jurgens <[email protected]>
Reviewed-by: Carol Soto <[email protected]>
Tested-by: Carol Soto <[email protected]>
Signed-off-by: Tariq Toukan <[email protected]>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index b723e3b..ca3a384 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -707,7 +707,7 @@ static int get_fixed_ipv6_csum(__wsum hw_checksum, struct
sk_buff *skb,
if (ipv6h->nexthdr == IPPROTO_FRAGMENT || ipv6h->nexthdr ==
IPPROTO_HOPOPTS)
return -1;
- hw_checksum = csum_add(hw_checksum, (__force __wsum)(ipv6h->nexthdr <<
8));
+ hw_checksum = csum_add(hw_checksum, (__force
__wsum)htons(ipv6h->nexthdr));
csum_pseudo_hdr = csum_partial(&ipv6h->saddr,
sizeof(ipv6h->saddr) +
sizeof(ipv6h->daddr), 0);
--
1.8.3.1
