drivers/net: avoid some skb->ip_summed initializations

fresh skbs have ip_summed set to CHECKSUM_NONE (0)

We can avoid setting again skb->ip_summed to CHECKSUM_NONE in drivers.

Introduce skb_checksum_none_assert() helper so that we keep this
assertion documented in driver sources.

Change most occurrences of :

skb->ip_summed = CHECKSUM_NONE;

by :

skb_checksum_none_assert(skb);

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/sfc/rx.c b/drivers/net/sfc/rx.c
index 799c461ce7b8..acb372e841b2 100644
--- a/drivers/net/sfc/rx.c
+++ b/drivers/net/sfc/rx.c
@@ -615,7 +615,7 @@ void __efx_rx_packet(struct efx_channel *channel,
         EFX_BUG_ON_PARANOID(!skb);
 
         /* Set the SKB flags */
-        skb->ip_summed = CHECKSUM_NONE;
+        skb_checksum_none_assert(skb);
 
         /* Pass the packet up */
         netif_receive_skb(skb);