netdev - Re: [PATCH v2] net: stmmac: only enable DMA interrupts when ready

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <164578621107.20500.7059281134747424686.git-patchwork-notify@kernel.org>
Date:   Fri, 25 Feb 2022 10:50:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Vincent Whitchurch <vincent.whitchurch@...s.com>
Cc:     peppe.cavallaro@...com, alexandre.torgue@...s.st.com,
        joabreu@...opsys.com, davem@...emloft.net, kuba@...nel.org,
        mcoquelin.stm32@...il.com, kernel@...s.com, larper@...s.com,
        srinivas.kandagatla@...com, netdev@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: stmmac: only enable DMA interrupts when ready

Hello:

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

On Thu, 24 Feb 2022 12:38:29 +0100 you wrote:
> In this driver's ->ndo_open() callback, it enables DMA interrupts,
> starts the DMA channels, then requests interrupts with request_irq(),
> and then finally enables napi.
> 
> If RX DMA interrupts are received before napi is enabled, no processing
> is done because napi_schedule_prep() will return false.  If the network
> has a lot of broadcast/multicast traffic, then the RX ring could fill up
> completely before napi is enabled.  When this happens, no further RX
> interrupts will be delivered, and the driver will fail to receive any
> packets.
> 
> [...]

Here is the summary with links:
  - [v2] net: stmmac: only enable DMA interrupts when ready
    https://git.kernel.org/netdev/net/c/087a7b944c5d

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html