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/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index abe0ff53daf..198ce92af0c 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -1042,11 +1042,11 @@ vmxnet3_rx_csum(struct vmxnet3_adapter *adapter,
                                 skb->csum = htons(gdesc->rcd.csum);
                                 skb->ip_summed = CHECKSUM_PARTIAL;
                         } else {
-                                skb->ip_summed = CHECKSUM_NONE;
+                                skb_checksum_none_assert(skb);
                         }
                 }
         } else {
-                skb->ip_summed = CHECKSUM_NONE;
+                skb_checksum_none_assert(skb);
         }
 }