linux-kernel - Re: [PATCH v4] cdx: add MSI support for CDX bus

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Date:   Thu, 5 Oct 2023 16:00:26 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Nipun Gupta <nipun.gupta@....com>, maz@...nel.org, jgg@...pe.ca,
        linux-kernel@...r.kernel.org, git@....com, harpreet.anand@....com,
        pieter.jansen-van-vuuren@....com, nikhil.agarwal@....com,
        michal.simek@....com, abhijit.gangurde@....com,
        srivatsa@...il.mit.edu
Subject: Re: [PATCH v4] cdx: add MSI support for CDX bus

On Thu, Oct 05, 2023 at 03:46:34PM +0200, Thomas Gleixner wrote:
> On Thu, Oct 05 2023 at 12:24, Greg KH wrote:
> >> diff --git a/drivers/cdx/Kconfig b/drivers/cdx/Kconfig
> >> index a08958485e31..86df7ccb76bb 100644
> >> --- a/drivers/cdx/Kconfig
> >> +++ b/drivers/cdx/Kconfig
> >> @@ -8,6 +8,7 @@
> >>  config CDX_BUS
> >>  	bool "CDX Bus driver"
> >>  	depends on OF && ARM64
> >> +	select GENERIC_MSI_IRQ_DOMAIN
> >
> > This config option isn't in my tree anywhere, where did it come from?
> > What is it supposed to do?
> 
> 13e7accb81d6 ("genirq: Get rid of GENERIC_MSI_IRQ_DOMAIN") :)

Ok, so this hasn't been tested since the 6.2 release?  Wow, I think
someone from AMD needs to take a deep look at this and verify that it
actually is doing what it is supposed to be doing...

thanks,

greg k-h