From: Sathya Narayanan <sathyan@teamf1.com>
Date: Tue, 1 Jul 2008 08:58:19 +0000 (+0200)
Subject: ibm_newemac: Fixes entry of short packets
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6c688f4294dec3f2228fd46be67604508177a1c3;p=linux-beck.git

ibm_newemac: Fixes entry of short packets

Short packets has to be discarded by the driver. So this patch addresses the
issue of discarding the short packets of size lesser then ethernet header
size.

Signed-off-by: Sathya Narayanan <sathyan@teamf1.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---

diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c
index ca63fa000ee7..babc79ad490b 100644
--- a/drivers/net/ibm_newemac/core.c
+++ b/drivers/net/ibm_newemac/core.c
@@ -1636,6 +1636,12 @@ static int emac_poll_rx(void *param, int budget)
 			goto next;
 		}
 
+		if (len < ETH_HLEN) {
+			++dev->estats.rx_dropped_stack;
+			emac_recycle_rx_skb(dev, slot, len);
+			goto next;
+		}
+
 		if (len && len < EMAC_RX_COPY_THRESH) {
 			struct sk_buff *copy_skb =
 			    alloc_skb(len + EMAC_RX_SKB_HEADROOM + 2, GFP_ATOMIC);