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Subject: Re: [PATCH v2] net: stmmac: only enable DMA interrupts when ready
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <164578621107.20500.7059281134747424686.git-patchwork-notify@kernel.org>
Date:   Fri, 25 Feb 2022 10:50:11 +0000
References: <20220224113829.1092859-1-vincent.whitchurch@axis.com>
In-Reply-To: <20220224113829.1092859-1-vincent.whitchurch@axis.com>
To:     Vincent Whitchurch <vincent.whitchurch@axis.com>
Cc:     peppe.cavallaro@st.com, alexandre.torgue@foss.st.com,
        joabreu@synopsys.com, davem@davemloft.net, kuba@kernel.org,
        mcoquelin.stm32@gmail.com, kernel@axis.com, larper@axis.com,
        srinivas.kandagatla@st.com, netdev@vger.kernel.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Precedence: bulk

Hello:

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