linux-kernel - Re: [PATCH] octeontx2: Fix otx2_dma_map

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Message-Id: 
 <176883230702.1426077.16288100888364682482.git-patchwork-notify@kernel.org>
Date: Mon, 19 Jan 2026 14:18:27 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Thomas Fourier <fourier.thomas@...il.com>
Cc: stable@...r.kernel.org, sgoutham@...vell.com, gakula@...vell.com,
 sbhatta@...vell.com, hkelam@...vell.com, bbhushan2@...vell.com,
 andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] octeontx2: Fix otx2_dma_map_page() error return code

Hello:

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

On Wed, 14 Jan 2026 13:31:06 +0100 you wrote:
> 0 is a valid DMA address [1] so using it as the error value can lead to
> errors.  The error value of dma_map_XXX() functions is DMA_MAPPING_ERROR
> which is ~0.  The callers of otx2_dma_map_page() use dma_mapping_error()
> to test the return value of otx2_dma_map_page(). This means that they
> would not detect an error in otx2_dma_map_page().
> 
> Make otx2_dma_map_page() return the raw value of dma_map_page_attrs().
> 
> [...]

Here is the summary with links:
  - octeontx2: Fix otx2_dma_map_page() error return code
    https://git.kernel.org/netdev/net/c/d998b0e5afff

You are awesome, thank you!
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