UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

net: fec: use netif_tx_disable() rather than netif_stop_queue() 

We use netif_stop_queue() in several places where we want to ensure that
the start_xmit function is not running.  netif_stop_queue() is not
sufficient to achieve that - it merely sets a flag to indicate that the
transmit queue(s) should not be run.

netif_tx_disable() gives this guarantee, since it takes the transmit
queue lock while marking the queue stopped.  This will wait for the
transmit function to complete before returning.

Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2014-07-08 00:22:49 +01:00 committed by David S. Miller
parent 7a16807ce1
commit b49cd504c4
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/freescale/fec_main.c
View File

@ -834,7 +834,7 @@ fec_restart(struct net_device *ndev, int duplex)
if (netif_running(ndev)) {
netif_device_detach(ndev);
napi_disable(&fep->napi);
netif_stop_queue(ndev);
netif_tx_disable(ndev);
netif_tx_lock_bh(ndev);
}
@ -2181,7 +2181,7 @@ fec_enet_close(struct net_device *ndev)
/* Don't know what to do yet. */
napi_disable(&fep->napi);
fep->opened = 0;
netif_stop_queue(ndev);
netif_tx_disable(ndev);
fec_stop(ndev);
if (fep->phy_dev) {