Received-SPF: pass (google.com: domain of linux-kernel+bounces-45678-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99;
Date: Tue, 30 Jan 2024 18:29:14 -0800
From: Jakub Kicinski <kuba@kernel.org>
To: Shradha Gupta <shradhagupta@linux.microsoft.com>
Cc: "K. Y. 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>, 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,
 shradhagupta@microsoft.com, stable@vger.kernel.org
Subject: Re: [PATCH] hv_netvsc:Register VF in netvsc_probe if
 NET_DEVICE_REGISTER missed
Message-ID: <20240130182914.25df5128@kernel.org>
In-Reply-To: <1706599135-12651-1-git-send-email-shradhagupta@linux.microsoft.com>
References: <1706599135-12651-1-git-send-email-shradhagupta@linux.microsoft.com>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Mon, 29 Jan 2024 23:18:55 -0800 Shradha Gupta wrote:
> If hv_netvsc driver is removed 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>

Does not seem to apply to net/main, please respin