[PATCH net] net: lan969x: don't disable hardirqs in fdma tx clear

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Wed Oct 21 17:30:10 PDT 2026


Hello:

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

On Tue, 20 Oct 2026 10:57:27 +0200 you wrote:
> lan969x_fdma_tx_clear_buf() runs from the NAPI poll and frees the skbs
> of completed tx DCBs with napi_consume_skb(), under sparx5->tx_lock.
> 
> Before this patch, the lock is taken with spin_lock_irqsave(), so the
> skbs are freed with hardirqs disabled. RX skbs are marked for page_pool
> recycling, so when such an skb is forwarded back out and its tx
> completion frees it here, the free path reaches __page_pool_put_page(),
> which warns via lockdep_assert_no_hardirq().
> 
> [...]

Here is the summary with links:
  - [net] net: lan969x: don't disable hardirqs in fdma tx clear
    https://git.kernel.org/netdev/net/c/9770818b8a92

You are awesome, thank you!
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