[NET]: Detect hardware rx checksum faults correctly

[mirror_ubuntu-bionic-kernel.git] / net / ipv4 / icmp.c

diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 175e093ec5645209ab809dd52ccce0667a020e82..e3eceecd0496eeb752964ee276bdc2e0c79e4de3 100644 (file)
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -934,11 +934,11 @@ int icmp_rcv(struct sk_buff *skb)
        case CHECKSUM_HW:
                if (!(u16)csum_fold(skb->csum))
                        break;
-               LIMIT_NETDEBUG(KERN_DEBUG "icmp v4 hw csum failure\n");
+               /* fall through */
        case CHECKSUM_NONE:
-               if ((u16)csum_fold(skb_checksum(skb, 0, skb->len, 0)))
+               skb->csum = 0;
+               if (__skb_checksum_complete(skb))
                        goto error;
-       default:;
        }
 
        if (!pskb_pull(skb, sizeof(struct icmphdr)))