Re: [PATCH v2] PCI: mediatek: Clear interrupt status before dispatching handler

[Greg KH]

On Thu, Feb 10, 2022 at 09:21:25AM +0800, qizhong cheng wrote:
> 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.
> 
> Signed-off-by: qizhong cheng <qizhong.cheng@xxxxxxxxxxxx>
> ---
> v2:
>  - Update the subject line.
>  - Improve the commit log and code comments.
> 
>  drivers/pci/controller/pcie-mediatek.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
> 

<formletter>

This is not the correct way to submit patches for inclusion in the
stable kernel tree.  Please read:
    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.

</formletter>