linux-kernel - Re: [PATCH] net: macb: Align the dma and coherent dma masks

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Message-Id: <164450580890.354.9508904598156837461.git-patchwork-notify@kernel.org>
Date:   Thu, 10 Feb 2022 15:10:08 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Harini Katakam <harini.katakam@...inx.com>
Cc:     nicolas.ferre@...rochip.com, davem@...emloft.net,
        claudiu.beznea@...rochip.com, andrei.pistirica@...rochip.com,
        kuba@...nel.org, Conor.Dooley@...rochip.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        michal.simek@...inx.com, harinikatakamlinux@...il.com,
        mstamand@...na.com
Subject: Re: [PATCH] net: macb: Align the dma and coherent dma masks

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed, 9 Feb 2022 15:13:25 +0530 you wrote:
> From: Marc St-Amand <mstamand@...na.com>
> 
> Single page and coherent memory blocks can use different DMA masks
> when the macb accesses physical memory directly. The kernel is clever
> enough to allocate pages that fit into the requested address width.
> 
> When using the ARM SMMU, the DMA mask must be the same for single
> pages and big coherent memory blocks. Otherwise the translation
> tables turn into one big mess.
> 
> [...]

Here is the summary with links:
  - net: macb: Align the dma and coherent dma masks
    https://git.kernel.org/netdev/net/c/37f7860602b5

You are awesome, thank you!
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