admin/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2025-12-07 20:06:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

net: hold netdev instance lock during ioctl operations

Browse Source 
Convert all ndo_eth_ioctl invocations to dev_eth_ioctl which does the
locking. Reflow some of the dev_siocxxx to drop else clause.

Cc: Saeed Mahameed <saeed@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250305163732.2766420-8-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Stanislav Fomichev
2025-03-05 08:37:25 -08:00
committed by Jakub Kicinski
parent 7e4d784f58
commit ffb7ed19ac
6 changed files with 80 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
net/core/dev_api.c
View File

@@ -222,3 +222,33 @@ void dev_close(struct net_device *dev)
netdev_unlock_ops(dev);
}
EXPORT_SYMBOL(dev_close);
int dev_eth_ioctl(struct net_device *dev,
struct ifreq *ifr, unsigned int cmd)
{
const struct net_device_ops *ops = dev->netdev_ops;
int ret = -ENODEV;
if (!ops->ndo_eth_ioctl)
return -EOPNOTSUPP;
netdev_lock_ops(dev);
if (netif_device_present(dev))
ret = ops->ndo_eth_ioctl(dev, ifr, cmd);
netdev_unlock_ops(dev);
return ret;
}
EXPORT_SYMBOL(dev_eth_ioctl);
int dev_set_mtu(struct net_device *dev, int new_mtu)
{
int ret;
netdev_lock_ops(dev);
ret = netif_set_mtu(dev, new_mtu);
netdev_unlock_ops(dev);
return ret;
}
EXPORT_SYMBOL(dev_set_mtu);