igb: Fix erroneous display of stats by ethtool -S

Commit 337e067d 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>

1 files changed, 22 insertions, 5 deletions

diff --git a/drivers/net/igb/igb_ethtool.c b/drivers/net/igb/igb_ethtool.c
index d46c3212757b..a6da32f25a83 100644
--- a/drivers/net/igb/igb_ethtool.c
+++ b/drivers/net/igb/igb_ethtool.c
@@ -37,16 +37,22 @@
 
 #include "igb.h"
 
+enum {NETDEV_STATS, IGB_STATS};
+
 struct igb_stats {
         char stat_string[ETH_GSTRING_LEN];
+        int type;
         int sizeof_stat;
         int stat_offset;
 };
 
-#define IGB_STAT(m) FIELD_SIZEOF(struct igb_adapter, m), \
-                      offsetof(struct igb_adapter, m)
-#define IGB_NETDEV_STAT(m) FIELD_SIZEOF(struct net_device, m), \
-                      offsetof(struct net_device, m)
+#define IGB_STAT(m)             IGB_STATS, \
+                                FIELD_SIZEOF(struct igb_adapter, m), \
+                                offsetof(struct igb_adapter, m)
+#define IGB_NETDEV_STAT(m)      NETDEV_STATS, \
+                                FIELD_SIZEOF(struct net_device, m), \
+                                offsetof(struct net_device, m)
+
 static const struct igb_stats igb_gstrings_stats[] = {
         { "rx_packets", IGB_STAT(stats.gprc) },
         { "tx_packets", IGB_STAT(stats.gptc) },
@@ -1959,10 +1965,21 @@ static void igb_get_ethtool_stats(struct net_device *netdev,
         int stat_count_rx = sizeof(struct igb_rx_queue_stats) / sizeof(u64);
         int j;
         int i;
+        char *p = NULL;
 
         igb_update_stats(adapter);
         for (i = 0; i < IGB_GLOBAL_STATS_LEN; i++) {
-                char *p = (char *)adapter+igb_gstrings_stats[i].stat_offset;
+                switch (igb_gstrings_stats[i].type) {
+                case NETDEV_STATS:
+                        p = (char *) netdev +
+                                        igb_gstrings_stats[i].stat_offset;
+                        break;
+                case IGB_STATS:
+                        p = (char *) adapter +
+                                        igb_gstrings_stats[i].stat_offset;
+                        break;
+                }
+
                 data[i] = (igb_gstrings_stats[i].sizeof_stat ==
                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
         }