linux-kernel - Re: [PATCH v4 2/2] vfio/cdx: update driver to build without CONFIG_GENERIC_MSI

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Message-ID: <20250827125557.6340d8d3.alex.williamson@redhat.com>
Date: Wed, 27 Aug 2025 12:55:57 -0600
From: Alex Williamson <alex.williamson@...hat.com>
To: "Gupta, Nipun" <Nipun.Gupta@....com>
Cc: "arnd@...db.de" <arnd@...db.de>, "gregkh@...uxfoundation.org"
 <gregkh@...uxfoundation.org>, "Agarwal, Nikhil" <nikhil.agarwal@....com>,
 "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "linux-kernel@...r.kernel.org"
 <linux-kernel@...r.kernel.org>, "llvm@...ts.linux.dev"
 <llvm@...ts.linux.dev>, "oe-kbuild-all@...ts.linux.dev"
 <oe-kbuild-all@...ts.linux.dev>, "robin.murphy@....com"
 <robin.murphy@....com>, "krzk@...nel.org" <krzk@...nel.org>,
 "tglx@...utronix.de" <tglx@...utronix.de>, "maz@...nel.org"
 <maz@...nel.org>, "linux@...ssschuh.net" <linux@...ssschuh.net>,
 "chenqiuji666@...il.com" <chenqiuji666@...il.com>, "peterz@...radead.org"
 <peterz@...radead.org>, "robh@...nel.org" <robh@...nel.org>, "Gangurde,
 Abhijit" <abhijit.gangurde@....com>, "nathan@...nel.org"
 <nathan@...nel.org>, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v4 2/2] vfio/cdx: update driver to build without
 CONFIG_GENERIC_MSI_IRQ

On Wed, 27 Aug 2025 11:04:12 +0000
"Gupta, Nipun" <Nipun.Gupta@....com> wrote:

> [AMD Official Use Only - AMD Internal Distribution Only]
> 
> > -----Original Message-----
> > From: Alex Williamson <alex.williamson@...hat.com>
> > Sent: Tuesday, August 26, 2025 9:54 PM
> > To: Gupta, Nipun <Nipun.Gupta@....com>
> > Cc: arnd@...db.de; gregkh@...uxfoundation.org; Agarwal, Nikhil
> > <nikhil.agarwal@....com>; kvm@...r.kernel.org; linux-kernel@...r.kernel.org;
> > llvm@...ts.linux.dev; oe-kbuild-all@...ts.linux.dev; robin.murphy@....com;
> > krzk@...nel.org; tglx@...utronix.de; maz@...nel.org; linux@...ssschuh.net;
> > chenqiuji666@...il.com; peterz@...radead.org; robh@...nel.org; Gangurde,
> > Abhijit <abhijit.gangurde@....com>; nathan@...nel.org; kernel test robot
> > <lkp@...el.com>
> > Subject: Re: [PATCH v4 2/2] vfio/cdx: update driver to build without
> > CONFIG_GENERIC_MSI_IRQ
> >
> > On Tue, 26 Aug 2025 10:08:52 +0530
> > Nipun Gupta <nipun.gupta@....com> wrote:
> >  
> > > Define dummy MSI related APIs in VFIO CDX driver to build the
> > > driver without enabling CONFIG_GENERIC_MSI_IRQ flag.
> > >
> > > Reported-by: kernel test robot <lkp@...el.com>
> > > Closes: https://lore.kernel.org/oe-kbuild-all/202508070308.opy5dIFX-  
> > lkp@...el.com/  
> > > Reviewed-by: Nikhil Agarwal <nikhil.agarwal@....com>
> > > Reviewed-by: Alex Williamson <alex.williamson@...hat.com>
> > > Signed-off-by: Nipun Gupta <nipun.gupta@....com>
> > > ---
> > >
> > > Changes v1->v2:
> > > - fix linking intr.c file in Makefile
> > > Changes v2->v3:
> > > - return error from vfio_cdx_set_irqs_ioctl() when CONFIG_GENERIC_MSI_IRQ
> > >   is disabled
> > > Changes v3->v4:
> > > - changed the return value to -EINVAL from -ENODEV  
> >
> > What are your intentions for merging this series, char-misc or vfio?  
> 
> Yes please, this can be taken via vfio.

Series applied to vfio next branch for v6.18.  Thanks,

Alex