linux-kernel - Re: linux-next: Tree for Jul 16 (drivers/vfio/cdx/intr.c)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4a6fd102-f8e0-42f3-b789-6e3340897032@infradead.org>
Date: Wed, 16 Jul 2025 16:07:38 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>,
 Linux Next Mailing List <linux-next@...r.kernel.org>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
 linux-um@...ts.infradead.org, Linux KVM <kvm@...r.kernel.org>,
 Nipun Gupta <nipun.gupta@....com>, Nikhil Agarwal <nikhil.agarwal@....com>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: linux-next: Tree for Jul 16 (drivers/vfio/cdx/intr.c)



On 7/16/25 4:25 AM, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20250715:
> 

on ARCH=um SUBARCH=x86_64:

../drivers/vfio/cdx/intr.c: In function ‘vfio_cdx_msi_enable’:
../drivers/vfio/cdx/intr.c:41:15: error: implicit declaration of function ‘msi_domain_alloc_irqs’; did you mean ‘msi_domain_get_virq’? [-Wimplicit-function-declaration]
   41 |         ret = msi_domain_alloc_irqs(dev, MSI_DEFAULT_DOMAIN, nvec);
      |               ^~~~~~~~~~~~~~~~~~~~~
      |               msi_domain_get_virq
../drivers/vfio/cdx/intr.c: In function ‘vfio_cdx_msi_disable’:
../drivers/vfio/cdx/intr.c:135:9: error: implicit declaration of function ‘msi_domain_free_irqs_all’ [-Wimplicit-function-declaration]
  135 |         msi_domain_free_irqs_all(dev, MSI_DEFAULT_DOMAIN);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~


Those missing functions are provided by CONFIG_GENERIC_MSI_IRQ
(which is not set).

Should VFIO_CDX select GENERIC_MSI_IRQ or just not build on ARCH=um?


-- 
~Randy