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Subject: Re: [PATCH net v3] net: stmmac: fix rx Scatter-Gather support
From: patchwork-bot+netdevbpf@kernel.org
Message-Id: 
 <179064600978.210624.11551401846700650328.git-patchwork-notify@kernel.org>
Date: Tue, 29 Sep 2026 01:40:09 +0000
References: <20260923-stmmac-rx-sg-fix-v3-1-ed26fea7180d@oss.qualcomm.com>
In-Reply-To: <20260923-stmmac-rx-sg-fix-v3-1-ed26fea7180d@oss.qualcomm.com>
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,
 Jose.Abreu@synopsys.com, ast@kernel.org, daniel@iogearbox.net,
 hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me,
 netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
 linux-arm-kernel@lists.infradead.org, bpf@vger.kernel.org

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 23 Sep 2026 11:14:28 +0200 you wrote:
> When a received frame is larger than dma_buf_sz, the DMA scatters it
> across multiple RX descriptors (rx Scatter-Gather). The secondary RX
> buffer (sec_page) was only allocated and programmed when split-header
> (SPH) was active, so for regular frames buffer2 was neither allocated
> nor backed by a valid mapping. As soon as an incoming frame overflowed
> buffer1, the DMA wrote the overflow into the unmapped secondary-buffer
> address, triggering an SMMU translation fault on IOMMU-based platforms:
> 
> [...]

Here is the summary with links:
  - [net,v3] net: stmmac: fix rx Scatter-Gather support
    https://git.kernel.org/netdev/net/c/88095728511e

You are awesome, thank you!
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