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
