From: Colin Ian King Date: Fri, 5 Feb 2016 16:30:39 +0000 (+0000) Subject: net: cavium: liquidio: fix check for in progress flag X-Git-Tag: firefly_0821_release~176^2~4^2~31^2~125 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6d0e49cf1b432a11bf60b9fc2ee41c3e4e0347fe;p=firefly-linux-kernel-4.4.55.git net: cavium: liquidio: fix check for in progress flag [ Upstream commit 19a6d156a7bd080f3a855a40a4a08ab475e34b4a ] smatch detected a suspicious looking bitop condition: drivers/net/ethernet/cavium/liquidio/lio_main.c:2529 handle_timestamp() warn: suspicious bitop condition (skb_shinfo(skb)->tx_flags | SKBTX_IN_PROGRESS is always non-zero, so the logic is definitely not correct. Use & to mask the correct bit. Signed-off-by: Colin Ian King Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index b89504405b72..7445da218bd9 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -2526,7 +2526,7 @@ static void handle_timestamp(struct octeon_device *oct, octeon_swap_8B_data(&resp->timestamp, 1); - if (unlikely((skb_shinfo(skb)->tx_flags | SKBTX_IN_PROGRESS) != 0)) { + if (unlikely((skb_shinfo(skb)->tx_flags & SKBTX_IN_PROGRESS) != 0)) { struct skb_shared_hwtstamps ts; u64 ns = resp->timestamp;