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>
diff --git a/drivers/net/pcnet32.c b/drivers/net/pcnet32.c
index 0a1efba..b48aba9 100644
--- a/drivers/net/pcnet32.c
+++ b/drivers/net/pcnet32.c
@@ -2099,7 +2099,7 @@
int first_phy = -1;
u16 bmcr;
u32 bcr9;
- struct ethtool_cmd ecmd;
+ struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
/*
* There is really no good other way to handle multiple PHYs
@@ -2115,9 +2115,9 @@
ecmd.port = PORT_MII;
ecmd.transceiver = XCVR_INTERNAL;
ecmd.autoneg = AUTONEG_DISABLE;
- ecmd.speed =
- lp->
- options & PCNET32_PORT_100 ? SPEED_100 : SPEED_10;
+ ethtool_cmd_speed_set(&ecmd,
+ (lp->options & PCNET32_PORT_100) ?
+ SPEED_100 : SPEED_10);
bcr9 = lp->a.read_bcr(ioaddr, 9);
if (lp->options & PCNET32_PORT_FD) {
@@ -2763,11 +2763,11 @@
netif_carrier_on(dev);
if (lp->mii) {
if (netif_msg_link(lp)) {
- struct ethtool_cmd ecmd;
+ struct ethtool_cmd ecmd = {
+ .cmd = ETHTOOL_GSET };
mii_ethtool_gset(&lp->mii_if, &ecmd);
- netdev_info(dev, "link up, %sMbps, %s-duplex\n",
- (ecmd.speed == SPEED_100)
- ? "100" : "10",
+ netdev_info(dev, "link up, %uMbps, %s-duplex\n",
+ ethtool_cmd_speed(&ecmd),
(ecmd.duplex == DUPLEX_FULL)
? "full" : "half");
}