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authorNikolay Aleksandrov <nikolay@cumulusnetworks.com>2016-08-30 17:44:29 +0200
committerDavid S. Miller <davem@davemloft.net>2016-09-01 16:35:30 -0700
commit85a3d4a9356b595d5440c3f1bf07ee7cecca1567 (patch)
tree9138e94f7bd27a7affbb03ed8a1d9e011a2a599d /net/bridge
parent29c994e361009142ec0bca6493cc8f7b0d3c561a (diff)
net: bridge: don't increment tx_dropped in br_do_proxy_arp
pskb_may_pull may fail due to various reasons (e.g. alloc failure), but the skb isn't changed/dropped and processing continues so we shouldn't increment tx_dropped. CC: Kyeyoon Park <kyeyoonp@codeaurora.org> CC: Roopa Prabhu <roopa@cumulusnetworks.com> CC: Stephen Hemminger <stephen@networkplumber.org> CC: bridge@lists.linux-foundation.org Fixes: 958501163ddd ("bridge: Add support for IEEE 802.11 Proxy ARP") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_input.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 8e486203d133..abe11f085479 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -80,13 +80,10 @@ static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
BR_INPUT_SKB_CB(skb)->proxyarp_replied = false;
- if (dev->flags & IFF_NOARP)
+ if ((dev->flags & IFF_NOARP) ||
+ !pskb_may_pull(skb, arp_hdr_len(dev)))
return;
- if (!pskb_may_pull(skb, arp_hdr_len(dev))) {
- dev->stats.tx_dropped++;
- return;
- }
parp = arp_hdr(skb);
if (parp->ar_pro != htons(ETH_P_IP) ||