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/r8169.c b/drivers/net/r8169.c
index 078bbf4e6f19..07b3fb5175e5 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -4460,7 +4460,7 @@ static inline void rtl8169_rx_csum(struct sk_buff *skb, struct RxDesc *desc)
             ((status == RxProtoIP) && !(opts1 & IPFail)))
                 skb->ip_summed = CHECKSUM_UNNECESSARY;
         else
-                skb->ip_summed = CHECKSUM_NONE;
+                skb_checksum_none_assert(skb);
 }
 
 static inline bool rtl8169_try_rx_copy(struct sk_buff **sk_buff,