aboutsummaryrefslogtreecommitdiff
path: root/arch/mips
diff options
context:
space:
mode:
authorDavid Decotigny <decot@google.com>2011-04-27 18:32:38 +0000
committerDavid S. Miller <davem@davemloft.net>2011-04-29 14:01:30 -0700
commit8ae6daca85c8bbd6a32c382db5e2a2a989f8bed2 (patch)
tree0c85476c2af6568c3d3a73a960d582d2f91a1256 /arch/mips
parent36504605432996590f889e33d47e2d9c581f7569 (diff)
downloadvexpress-lsk-8ae6daca85c8bbd6a32c382db5e2a2a989f8bed2.tar.gz
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 'arch/mips')
-rw-r--r--arch/mips/txx9/generic/setup_tx4939.c21
1 files changed, 8 insertions, 13 deletions
diff --git a/arch/mips/txx9/generic/setup_tx4939.c b/arch/mips/txx9/generic/setup_tx4939.c
index 3dc19f48295..e9f95dcde37 100644
--- a/arch/mips/txx9/generic/setup_tx4939.c
+++ b/arch/mips/txx9/generic/setup_tx4939.c
@@ -318,19 +318,15 @@ void __init tx4939_sio_init(unsigned int sclk, unsigned int cts_mask)
}
#if defined(CONFIG_TC35815) || defined(CONFIG_TC35815_MODULE)
-static int tx4939_get_eth_speed(struct net_device *dev)
+static u32 tx4939_get_eth_speed(struct net_device *dev)
{
- struct ethtool_cmd cmd = { ETHTOOL_GSET };
- int speed = 100; /* default 100Mbps */
- int err;
- if (!dev->ethtool_ops || !dev->ethtool_ops->get_settings)
- return speed;
- err = dev->ethtool_ops->get_settings(dev, &cmd);
- if (err < 0)
- return speed;
- speed = cmd.speed == SPEED_100 ? 100 : 10;
- return speed;
+ struct ethtool_cmd cmd;
+ if (dev_ethtool_get_settings(dev, &cmd))
+ return 100; /* default 100Mbps */
+
+ return ethtool_cmd_speed(&cmd);
}
+
static int tx4939_netdev_event(struct notifier_block *this,
unsigned long event,
void *ptr)
@@ -343,8 +339,7 @@ static int tx4939_netdev_event(struct notifier_block *this,
else if (dev->irq == TXX9_IRQ_BASE + TX4939_IR_ETH(1))
bit = TX4939_PCFG_SPEED1;
if (bit) {
- int speed = tx4939_get_eth_speed(dev);
- if (speed == 100)
+ if (tx4939_get_eth_speed(dev) == 100)
txx9_set64(&tx4939_ccfgptr->pcfg, bit);
else
txx9_clear64(&tx4939_ccfgptr->pcfg, bit);