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>
diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 33c4ffe..c2f6e71 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -1905,7 +1905,7 @@
*/
if ((rx_desc->status & IXGB_RX_DESC_STATUS_IXSM) ||
(!(rx_desc->status & IXGB_RX_DESC_STATUS_TCPCS))) {
- skb->ip_summed = CHECKSUM_NONE;
+ skb_checksum_none_assert(skb);
return;
}
@@ -1913,7 +1913,7 @@
/* now look at the TCP checksum error bit */
if (rx_desc->errors & IXGB_RX_DESC_ERRORS_TCPE) {
/* let the stack verify checksum errors */
- skb->ip_summed = CHECKSUM_NONE;
+ skb_checksum_none_assert(skb);
adapter->hw_csum_rx_error++;
} else {
/* TCP checksum is good */