From: Ajit Khaparde <ajitk@serverengines.com>
Date: Tue, 13 Oct 2009 01:45:09 +0000 (+0000)
Subject: e1000e: Fix erroneous display of stats by ethtool -S
X-Git-Tag: v2.6.33-rc1~388^2~810
X-Git-Url: http://ftp.safe.ca/?a=commitdiff_plain;h=e0f36a95c7adb6551188cdcc5a7031ce106fccbf;hp=29c3a050f83c524218b1baa4e43aedd21501b338;p=safe%2Fjmp%2Flinux-2.6

e1000e: Fix erroneous display of stats by ethtool -S

Commit fd8235bb overlooked the way offsets for netdev stats were considered.
Because of this some of the stats shown by ethtool -S were wrong.
This patch fixes it.

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/e1000e/ethtool.c b/drivers/net/e1000e/ethtool.c
index 8a78a14..a70999b 100644
--- a/drivers/net/e1000e/ethtool.c
+++ b/drivers/net/e1000e/ethtool.c
@@ -35,16 +35,22 @@
 
 #include "e1000.h"
 
+enum {NETDEV_STATS, E1000_STATS};
+
 struct e1000_stats {
 	char stat_string[ETH_GSTRING_LEN];
+	int type;
 	int sizeof_stat;
 	int stat_offset;
 };
 
-#define E1000_STAT(m) sizeof(((struct e1000_adapter *)0)->m), \
-		      offsetof(struct e1000_adapter, m)
-#define E1000_NETDEV_STAT(m) sizeof(((struct net_device *)0)->m), \
-		      offsetof(struct net_device, m)
+#define E1000_STAT(m)		E1000_STATS, \
+				sizeof(((struct e1000_adapter *)0)->m), \
+		      		offsetof(struct e1000_adapter, m)
+#define E1000_NETDEV_STAT(m)	NETDEV_STATS, \
+				sizeof(((struct net_device *)0)->m), \
+				offsetof(struct net_device, m)
+
 static const struct e1000_stats e1000_gstrings_stats[] = {
 	{ "rx_packets", E1000_STAT(stats.gprc) },
 	{ "tx_packets", E1000_STAT(stats.gptc) },
@@ -1906,10 +1912,21 @@ static void e1000_get_ethtool_stats(struct net_device *netdev,
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	int i;
+	char *p = NULL;
 
 	e1000e_update_stats(adapter);
 	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
-		char *p = (char *)adapter+e1000_gstrings_stats[i].stat_offset;
+		switch (e1000_gstrings_stats[i].type) {
+		case NETDEV_STATS:
+			p = (char *) netdev +
+					e1000_gstrings_stats[i].stat_offset;
+			break;
+		case E1000_STATS:
+			p = (char *) adapter +
+					e1000_gstrings_stats[i].stat_offset;
+			break;
+		}
+
 		data[i] = (e1000_gstrings_stats[i].sizeof_stat ==
 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}