[PATCH] ieee80211: Log if netif_rx() drops the packet

Log to wireless network stats if netif_rx() drops the packet.

(also trailing whitespace and Lindent cleanups as part of patch-apply
process)

Signed-off-by: James Ketrenos <jketreno@linux.intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/net/ieee80211/ieee80211_rx.c b/net/ieee80211/ieee80211_rx.c
index 695d0478fd12..3ae91118c736 100644
--- a/net/ieee80211/ieee80211_rx.c
+++ b/net/ieee80211/ieee80211_rx.c
@@ -754,7 +754,14 @@ int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
                 memset(skb->cb, 0, sizeof(skb->cb));
                 skb->dev = dev;
                 skb->ip_summed = CHECKSUM_NONE; /* 802.11 crc not sufficient */
-                netif_rx(skb);
+                if (netif_rx(skb) == NET_RX_DROP) {
+                        /* netif_rx always succeeds, but it might drop
+                         * the packet.  If it drops the packet, we log that
+                         * in our stats. */
+                        IEEE80211_DEBUG_DROP
+                            ("RX: netif_rx dropped the packet\n");
+                        stats->rx_dropped++;
+                }
         }
 
       rx_exit: