linux-kernel - Re: [PATCH v2] net: macb: Increment rx bd head after allocating skb and buffer

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Message-Id: <165248761203.19970.11604393560078071280.git-patchwork-notify@kernel.org>
Date:   Sat, 14 May 2022 00:20:12 +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, kuba@...nel.org, pabeni@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        michal.simek@...inx.com, harinikatakamlinux@...il.com,
        radhey.shyam.pandey@...inx.com
Subject: Re: [PATCH v2] net: macb: Increment rx bd head after allocating skb and
 buffer

Hello:

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

On Thu, 12 May 2022 22:49:00 +0530 you wrote:
> In gem_rx_refill rx_prepared_head is incremented at the beginning of
> the while loop preparing the skb and data buffers. If the skb or data
> buffer allocation fails, this BD will be unusable BDs until the head
> loops back to the same BD (and obviously buffer allocation succeeds).
> In the unlikely event that there's a string of allocation failures,
> there will be an equal number of unusable BDs and an inconsistent RX
> BD chain. Hence increment the head at the end of the while loop to be
> clean.
> 
> [...]

Here is the summary with links:
  - [v2] net: macb: Increment rx bd head after allocating skb and buffer
    https://git.kernel.org/netdev/net/c/9500acc631db

You are awesome, thank you!
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