RE: [PATCH net,v4, 2/3] hv_netvsc: Fix race of register_netdevice_notifier and VF register

From: LKML haiyangz lkmlhyz@microsoft.com On Behalf Of Haiyang Zhang Sent: Friday, November 10, 2023 9:39 AM [...] If VF NIC is registered earlier, NETDEV_REGISTER event is replayed, but NETDEV_POST_INIT is not.

Move register_netdevice_notifier() earlier, so the call back function is set before probing.

Cc: stable@vger.kernel.org Fixes: e04e7a7bbd4b ("hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netvsc_probe()") Reported-by: Dexuan Cui decui@microsoft.com Signed-off-by: Haiyang Zhang haiyangz@microsoft.com Reviewed-by: Wojciech Drewek wojciech.drewek@intel.com

Reviewed-by: Dexuan Cui decui@microsoft.com

It's better to post a new version that follows Simon Horman's suggestion, i.e., use a more idiomatic form for the error path.