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/cassini.c b/drivers/net/cassini.c
index 28c88eeec757..32aaadc4734f 100644
--- a/drivers/net/cassini.c
+++ b/drivers/net/cassini.c
@@ -2149,7 +2149,7 @@ end_copy_pkt:
                 skb->csum = csum_unfold(~csum);
                 skb->ip_summed = CHECKSUM_COMPLETE;
         } else
-                skb->ip_summed = CHECKSUM_NONE;
+                skb_checksum_none_assert(skb);
         return len;
 }