Re: [PATCH 2/6] ath9k: add a quirk to set use_msi automatically

From: Kalle Valo
Date: Tue Sep 26 2017 - 10:15:05 EST


Christoph Hellwig <hch@xxxxxxxxxxxxx> writes:

> On Tue, Sep 26, 2017 at 03:26:51PM +0800, AceLan Kao wrote:
>> Ath9k is an old driver for old chips, and they work fine with legacy INTx.
>> But some new platforms are using it, so I think we should list those
>> new platforms which blocks INTx in the driver.
>
> And unless they are broken and need a quirk they should work even better
> with MSI if the device advertises MSI support in the PCI capabilities.

Daniel Drake (CCed) already found problems with the MSI implementation:

https://lkml.kernel.org/r/20170925041153.26574-1-drake@xxxxxxxxxxxx

--
Kalle Valo