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authorDavid S. Miller <davem@davemloft.net>2021-08-05 13:36:59 +0300
committerDavid S. Miller <davem@davemloft.net>2021-08-05 13:36:59 +0300
commitd15040a33883c3ab2ee2ea17e6427ce24e9f3ac0 (patch)
treecdc7a2fa03144725689da62cf4f7233690965c42 /net/ipv6/ipv6_sockglue.c
parent4167a960574fcadc9067f4280951a35b8c021c68 (diff)
parent9384eacd80f3da8d05fd17073eafd1f7fef80b26 (diff)
downloadlinux-d15040a33883c3ab2ee2ea17e6427ce24e9f3ac0.tar.xz
Merge branch 'bridge-ioctl-fixes'
Nikolay Aleksandrov says: ==================== net: bridge: fix recent ioctl changes These are three fixes for the recent bridge removal of ndo_do_ioctl done by commit ad2f99aedf8f ("net: bridge: move bridge ioctls out of .ndo_do_ioctl"). Patch 01 fixes a deadlock of the new bridge ioctl hook lock and rtnl by taking a netdev reference and always taking the bridge ioctl lock first then rtnl from within the bridge hook. Patch 02 fixes old_deviceless() bridge calls device name argument, and patch 03 checks in dev_ifsioc()'s SIOCBRADD/DELIF cases if the netdevice is actually a bridge before interpreting its private ptr as net_bridge. Patch 01 was tested by running old bridge-utils commands with lockdep enabled. Patch 02 was tested again by using bridge-utils and using the respective ioctl calls on a "up" bridge device. Patch 03 was tested by using the addif ioctl on a non-bridge device (e.g. loopback). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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