From: patchwork-bot+netdevbpf@kernel.org
To: Lorenzo Bianconi <lorenzo.bianconi@oss.qualcomm.com>
Cc: maxime.chevallier@bootlin.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com, mcoquelin.stm32@gmail.com,
alexandre.torgue@foss.st.com, si.yanteng@linux.dev,
aleksander.lobakin@intel.com, 0x1207@gmail.com,
larysa.zaremba@intel.com, netdev@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH net] net: stmmac: clear stale buf->page after recycling on skb build failure
Date: Thu, 24 Sep 2026 02:20:12 +0000 [thread overview]
Message-ID: <179021641214.1281065.12234220924406890442.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260921-stmmac-fix-napi-build-skb-error-v1-1-3d54bf6d9bb6@oss.qualcomm.com>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Mon, 21 Sep 2026 16:46:18 +0200 you wrote:
> In stmmac_rx(), when napi_build_skb() fails the descriptor page is
> recycled back to the page pool with page_pool_recycle_direct(), but
> buf->page is left pointing at the recycled page, unlike every other
> consumption site in the function which clears the pointer after handing
> the page away.
>
> With the stale pointer stmmac_rx_refill() skips the replacement
> allocation and programs the already-recycled page back into the RX
> descriptor.
>
> [...]
Here is the summary with links:
- [net] net: stmmac: clear stale buf->page after recycling on skb build failure
https://git.kernel.org/netdev/net/c/0a7822e34a0b
You are awesome, thank you!
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prev parent reply other threads:[~2026-09-24 2:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 14:46 [PATCH net] net: stmmac: clear stale buf->page after recycling on skb build failure Lorenzo Bianconi
2026-09-22 21:41 ` Maxime Chevallier
2026-09-24 2:20 ` patchwork-bot+netdevbpf [this message]
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