Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: Re: [PATCH net v2 1/1] xdp: fix xdp_return_frame() kernel BUG throw for
 page_pool memory model
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <161722921486.2890.11294519050752062288.git-patchwork-notify@kernel.org>
Date:   Wed, 31 Mar 2021 22:20:14 +0000
References: <20210331132503.15926-1-boon.leong.ong@intel.com>
In-Reply-To: <20210331132503.15926-1-boon.leong.ong@intel.com>
To:     Ong Boon Leong <boon.leong.ong@intel.com>
Cc:     ast@kernel.org, daniel@iogearbox.net, davem@davemloft.net,
        kuba@kernel.org, hawk@kernel.org, john.fastabend@gmail.com,
        makita.toshiaki@lab.ntt.co.jp, netdev@vger.kernel.org,
        bpf@vger.kernel.org, linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed, 31 Mar 2021 21:25:03 +0800 you wrote:
> xdp_return_frame() may be called outside of NAPI context to return
> xdpf back to page_pool. xdp_return_frame() calls __xdp_return() with
> napi_direct = false. For page_pool memory model, __xdp_return() calls
> xdp_return_frame_no_direct() unconditionally and below false negative
> kernel BUG throw happened under preempt-rt build:
> 
> [  430.450355] BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/3884
> [  430.451678] caller is __xdp_return+0x1ff/0x2e0
> [  430.452111] CPU: 0 PID: 3884 Comm: modprobe Tainted: G     U      E     5.12.0-rc2+ #45
> 
> [...]

Here is the summary with links:
  - [net,v2,1/1] xdp: fix xdp_return_frame() kernel BUG throw for page_pool memory model
    https://git.kernel.org/netdev/net/c/622d13694b5f

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html