https://github.com/torvalds/linux
Revision 9ec7eb60dcbcb6c41076defbc5df7bbd95ceaba5 authored by Nikolay Aleksandrov on 15 March 2023, 11:18:40 UTC, committed by David S. Miller on 17 March 2023, 07:56:41 UTC
Add bond_ether_setup helper which is used to fix ether_setup() calls in the bonding driver. It takes care of both IFF_MASTER and IFF_SLAVE flags, the former is always restored and the latter only if it was set. If the bond enslaves non-ARPHRD_ETHER device (changes its type), then releases it and enslaves ARPHRD_ETHER device (changes back) then we use ether_setup() to restore the bond device type but it also resets its flags and removes IFF_MASTER and IFF_SLAVE[1]. Use the bond_ether_setup helper to restore both after such transition. [1] reproduce (nlmon is non-ARPHRD_ETHER): $ ip l add nlmon0 type nlmon $ ip l add bond2 type bond mode active-backup $ ip l set nlmon0 master bond2 $ ip l set nlmon0 nomaster $ ip l add bond1 type bond (we use bond1 as ARPHRD_ETHER device to restore bond2's mode) $ ip l set bond1 master bond2 $ ip l sh dev bond2 37: bond2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000 link/ether be:d7:c5:40:5b:cc brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 1500 (notice bond2's IFF_MASTER is missing) Fixes: e36b9d16c6a6 ("bonding: clean muticast addresses when device changes type") Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 53515a0
Tip revision: 9ec7eb60dcbcb6c41076defbc5df7bbd95ceaba5 authored by Nikolay Aleksandrov on 15 March 2023, 11:18:40 UTC
bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change
bonding: restore IFF_MASTER/SLAVE flags on bond enslave ether type change
Tip revision: 9ec7eb6
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.clang-format | -rw-r--r-- | 20.0 KB |
.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 151 bytes |
.gitattributes | -rw-r--r-- | 90 bytes |
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Makefile | -rw-r--r-- | 70.1 KB |
README | -rw-r--r-- | 727 bytes |
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