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net: prestera: ignore duplicate RIF destruction events

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During address teardown, the inetaddr notifier may be called multiple
times for the same interface. Ignore NETDEV_DOWN events if the RIF has
already been destroyed, rather than returning -EEXIST, which aborts the
notifier chain.

Cc: Ido Schimmel <idosch@nvidia.com>
Cc: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Yuyang Huang <yuyanghuang@google.com>
Link: https://patch.msgid.link/20260711005405.2861680-2-yuyanghuang@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Yuyang Huang
2026-07-11 09:54:02 +09:00
committed by Jakub Kicinski
parent f2596ce59b
commit 3cbbc9fa33
1 changed files with 2 additions and 4 deletions
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6
drivers/net/ethernet/marvell/prestera/prestera_router.c
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@@ -1302,10 +1302,8 @@ static int __prestera_inetaddr_port_event(struct net_device *port_dev,
dev_hold(port_dev);
break;
case NETDEV_DOWN:
if (!re) {
NL_SET_ERR_MSG_MOD(extack, "Can't find RIF");
return -EEXIST;
}
if (!re)
return 0;
prestera_rif_entry_destroy(port->sw, re);
dev_put(port_dev);
break;