From: Tony Lindgren <tony@atomide.com>
Date: Wed, 28 Feb 2007 12:28:25 +0000 (-0800)
Subject: smc91x: Add code to detect errors caused by bad memory timings
X-Git-Tag: v2.6.22-omap1~152^2~11
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=65e505125681c3adeee5c4644b8962a686e743ac;p=linux-2.6-omap-h63xx.git

smc91x: Add code to detect errors caused by bad memory timings

Add code to detect errors caused by bad memory timings

Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/drivers/net/smc91x.c b/drivers/net/smc91x.c
index 01cc3c742c3..0f9cf087727 100644
--- a/drivers/net/smc91x.c
+++ b/drivers/net/smc91x.c
@@ -497,6 +497,11 @@ static inline void  smc_rcv(struct net_device *dev)
 		dev->name, packet_number, status,
 		packet_len, packet_len);
 
+	if (unlikely(packet_len == 0 && !(status & RS_ERRORS))) {
+		printk(KERN_ERR "%s: bad memory timings: rxlen %u status %x\n",
+			dev->name, packet_len, status);
+		status |= RS_TOOSHORT;
+	}
 	back:
 	if (unlikely(packet_len < 6 || status & RS_ERRORS)) {
 		if (status & RS_TOOLONG && packet_len <= (1514 + 4 + 6)) {