Re: [PATCH net] net: microchip: fdma: fix DCB corruption under sustained load
From: patchwork-bot+netdevbpf
Date: Tue Oct 27 2026 - 18:31:15 EST
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:
On Mon, 26 Oct 2026 14:47:05 +0100 you wrote:
> __fdma_dcb_add() prepares a DCB and links it into a channel's chain by
> writing its address to the NEXT_PTR of the current last DCB. The FDMA
> may be processing the chain while this happens.
>
> Before this patch, the link is written before the new DCB's own nextptr
> and info fields, so the FDMA can follow it to a DCB that hasn't been fully
> prepared yet. Under sustained load this stalls the FDMA.
>
> [...]
Here is the summary with links:
- [net] net: microchip: fdma: fix DCB corruption under sustained load
https://git.kernel.org/netdev/net/c/573a6d4c7a21
You are awesome, thank you!
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