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, 2 insertions, 2 deletions

diff --git a/drivers/net/s2io.c b/drivers/net/s2io.c
index 7061fc8e99c..c70ad515383 100644
--- a/drivers/net/s2io.c
+++ b/drivers/net/s2io.c
@@ -7603,10 +7603,10 @@ static int rx_osm_handler(struct ring_info *ring_data, struct RxD_t * rxdp)
                          * Packet with erroneous checksum, let the
                          * upper layers deal with it.
                          */
-                        skb->ip_summed = CHECKSUM_NONE;
+                        skb_checksum_none_assert(skb);
                 }
         } else
-                skb->ip_summed = CHECKSUM_NONE;
+                skb_checksum_none_assert(skb);
 
         swstats->mem_freed += skb->truesize;
 send_up: