-----Original Message----- From: Shradha Gupta shradhagupta@linux.microsoft.com Sent: Thursday, February 1, 2024 11:41 PM To: KY Srinivasan kys@microsoft.com; Haiyang Zhang haiyangz@microsoft.com; Wei Liu wei.liu@kernel.org; Dexuan Cui decui@microsoft.com; David S. Miller davem@davemloft.net; Eric Dumazet edumazet@google.com; Jakub Kicinski kuba@kernel.org; Paolo Abeni pabeni@redhat.com; Wojciech Drewek wojciech.drewek@intel.com; linux-hyperv@vger.kernel.org; netdev@vger.kernel.org; linux- kernel@vger.kernel.org Cc: Shradha Gupta shradhagupta@linux.microsoft.com; Shradha Gupta shradhagupta@microsoft.com; stable@vger.kernel.org Subject: [PATCH net,v2] hv_netvsc: Register VF in netvsc_probe if NET_DEVICE_REGISTER missed
If hv_netvsc driver is unloaded and reloaded, the NET_DEVICE_REGISTER handler cannot perform VF register successfully as the register call is received before netvsc_probe is finished. This is because we register register_netdevice_notifier() very early( even before vmbus_driver_register()). To fix this, we try to register each such matching VF( if it is visible as a netdevice) at the end of netvsc_probe.
Cc: stable@vger.kernel.org Fixes: 85520856466e ("hv_netvsc: Fix race of register_netdevice_notifier and VF register") Suggested-by: Dexuan Cui decui@microsoft.com Signed-off-by: Shradha Gupta shradhagupta@linux.microsoft.com
Reviewed-by: Haiyang Zhang haiyangz@microsoft.com