linux-kernel - Re: [PATCH v4] PCI: mediatek: Clear interrupt status before dispatching handler

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Date: Mon, 8 Jan 2024 23:30:06 +0900
From: Krzysztof Wilczyński <kw@...ux.com>
To: Jianjun Wang <jianjun.wang@...iatek.com>
Cc: Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Ryder Lee <ryder.lee@...iatek.com>, linux-pci@...r.kernel.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, qizhong.cheng@...iatek.com,
	stable@...r.kernel.org
Subject: Re: [PATCH v4] PCI: mediatek: Clear interrupt status before
 dispatching handler

Hello,

> We found a failure when used iperf tool for wifi performance testing,
> there are some MSIs received while clearing the interrupt status,
> these MSIs cannot be serviced.
> 
> The interrupt status can be cleared even the MSI status still remaining,
> as an edge-triggered interrupts, its interrupt status should be cleared
> before dispatching to the handler of device.

Applied to controller/mediatek, thank you!

[1/1] PCI: mediatek: Clear interrupt status before dispatching handler
      https://git.kernel.org/pci/pci/c/4fea201e110e

	Krzysztof