From 8328c38fcda2743249fd142174acf025d4cdd21f Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Tue, 13 Oct 2009 01:45:48 +0000 Subject: [PATCH] e1000: Fix erroneous display of stats by ethtool -S Commit 23d26497 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 Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_ethtool.c | 27 ++++++++++++++++++++++----- 1 file changed, 22 insertions(+), 5 deletions(-) diff --git a/drivers/net/e1000/e1000_ethtool.c b/drivers/net/e1000/e1000_ethtool.c index e25b339..ffbae0a 100644 --- a/drivers/net/e1000/e1000_ethtool.c +++ b/drivers/net/e1000/e1000_ethtool.c @@ -31,16 +31,22 @@ #include "e1000.h" #include +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) FIELD_SIZEOF(struct e1000_adapter, m), \ - offsetof(struct e1000_adapter, m) -#define E1000_NETDEV_STAT(m) FIELD_SIZEOF(struct net_device, 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) }, @@ -1832,10 +1838,21 @@ static void e1000_get_ethtool_stats(struct net_device *netdev, { struct e1000_adapter *adapter = netdev_priv(netdev); int i; + char *p = NULL; e1000_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; } -- 2.7.4