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authorDavid Decotigny <decot@google.com>2011-04-27 22:32:38 +0400
committerDavid S. Miller <davem@davemloft.net>2011-04-30 01:01:30 +0400
commit8ae6daca85c8bbd6a32c382db5e2a2a989f8bed2 (patch)
tree0c85476c2af6568c3d3a73a960d582d2f91a1256 /drivers/net/pch_gbe/pch_gbe_main.c
parent36504605432996590f889e33d47e2d9c581f7569 (diff)
downloadlinux-8ae6daca85c8bbd6a32c382db5e2a2a989f8bed2.tar.xz
ethtool: Call ethtool's get/set_settings callbacks with cleaned data
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/pch_gbe/pch_gbe_main.c')
-rw-r--r--drivers/net/pch_gbe/pch_gbe_main.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index 4cc9872f5ec4..f3e4b0adae93 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -888,12 +888,12 @@ static void pch_gbe_watchdog(unsigned long data)
struct pch_gbe_adapter *adapter = (struct pch_gbe_adapter *)data;
struct net_device *netdev = adapter->netdev;
struct pch_gbe_hw *hw = &adapter->hw;
- struct ethtool_cmd cmd;
pr_debug("right now = %ld\n", jiffies);
pch_gbe_update_stats(adapter);
if ((mii_link_ok(&adapter->mii)) && (!netif_carrier_ok(netdev))) {
+ struct ethtool_cmd cmd = { .cmd = ETHTOOL_GSET };
netdev->tx_queue_len = adapter->tx_queue_len;
/* mii library handles link maintenance tasks */
if (mii_ethtool_gset(&adapter->mii, &cmd)) {
@@ -903,7 +903,7 @@ static void pch_gbe_watchdog(unsigned long data)
PCH_GBE_WATCHDOG_PERIOD));
return;
}
- hw->mac.link_speed = cmd.speed;
+ hw->mac.link_speed = ethtool_cmd_speed(&cmd);
hw->mac.link_duplex = cmd.duplex;
/* Set the RGMII control. */
pch_gbe_set_rgmii_ctrl(adapter, hw->mac.link_speed,
@@ -913,7 +913,7 @@ static void pch_gbe_watchdog(unsigned long data)
hw->mac.link_duplex);
netdev_dbg(netdev,
"Link is Up %d Mbps %s-Duplex\n",
- cmd.speed,
+ hw->mac.link_speed,
cmd.duplex == DUPLEX_FULL ? "Full" : "Half");
netif_carrier_on(netdev);
netif_wake_queue(netdev);