net: ethernet: cadence: fix socket buffer corruption problem

Socket buffer is not re-created when headroom is 2 and tailroom is 1. Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Oct 25, 2018 · 899ecae · 899ecae
1 parent 4f3ebb0
commit 899ecae
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
@@ -1684,7 +1684,7 @@ static int macb_pad_and_fcs(struct sk_buff **skb, struct net_device *ndev)
 			padlen = 0;
 		/* No room for FCS, need to reallocate skb. */
 		else
-			padlen = ETH_FCS_LEN - tailroom;
+			padlen = ETH_FCS_LEN;
 	} else {
 		/* Add room for FCS. */
 		padlen += ETH_FCS_LEN;