[PATCH net v4] net: stmmac: do not keep the new TSO MSS cached on mapping failures

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Wed Sep 30 17:00:11 PDT 2026


Hello:

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

On Mon, 28 Sep 2026 20:34:22 +0800 you wrote:
> From: Linkui Xiao <xiaolinkui at kylinos.cn>
> 
> stmmac_tso_xmit() fills the MSS context descriptor and stores the new MSS
> in tx_q->mss right away, but the descriptor only gets its OWN bit much
> later, right before the frame is handed to the DMA. Every error path in
> between - the dma_map_single() of the linear part and the
> skb_frag_dma_map() of each fragment - returns with tx_q->mss already
> updated while the MAC is still programmed with the previous MSS.
> 
> [...]

Here is the summary with links:
  - [net,v4] net: stmmac: do not keep the new TSO MSS cached on mapping failures
    https://git.kernel.org/netdev/net-next/c/6b76e4efe73f

You are awesome, thank you!
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