Re: [PATCH net] net: stmmac: xgmac: do not treat TBU as a TX event

From: patchwork-bot+netdevbpf

Date: Tue Oct 20 2026 - 04:35:44 EST


Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@xxxxxxxxxx>:

On Tue, 13 Oct 2026 10:47:47 +0800 you wrote:
> Commit 8d07a7930434 ("net: stmmac: xgmac: Do not enable TBU interrupt")
> removed TBUE from the default DMA interrupt mask, but did not remove the
> TBU check from dwxgmac2_dma_interrupt().
>
> TBU is set whenever a TX channel runs out of descriptors. Since TBUE is
> not enabled and only enabled bits are cleared, the TBU status bit is
> never cleared. As a result, TBU stays set on every idle TX channel,
> regardless of whether there is any TX traffic.
>
> [...]

Here is the summary with links:
- [net] net: stmmac: xgmac: do not treat TBU as a TX event
https://git.kernel.org/netdev/net/c/305deb54c6c2

You are awesome, thank you!
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