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vfio/cdx: update driver to build without CONFIG_GENERIC_MSI_IRQ

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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@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202508070308.opy5dIFX-lkp@intel.com/
Reviewed-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Link: https://lore.kernel.org/r/20250826043852.2206008-2-nipun.gupta@amd.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Nipun Gupta
2025-08-26 10:08:52 +05:30
committed by Alex Williamson
parent ab1d8dda32
commit 9f3acb3d9a
2 changed files with 19 additions and 1 deletions
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6
drivers/vfio/cdx/Makefile
View File

@@ -5,4 +5,8 @@
obj-$(CONFIG_VFIO_CDX) += vfio-cdx.o
vfio-cdx-objs := main.o intr.o
vfio-cdx-objs := main.o
ifdef CONFIG_GENERIC_MSI_IRQ
vfio-cdx-objs += intr.o
endif

14
drivers/vfio/cdx/private.h
View File

@@ -38,11 +38,25 @@ struct vfio_cdx_device {
u8 config_msi;
};
#ifdef CONFIG_GENERIC_MSI_IRQ
int vfio_cdx_set_irqs_ioctl(struct vfio_cdx_device *vdev,
u32 flags, unsigned int index,
unsigned int start, unsigned int count,
void *data);
void vfio_cdx_irqs_cleanup(struct vfio_cdx_device *vdev);
#else
static int vfio_cdx_set_irqs_ioctl(struct vfio_cdx_device *vdev,
u32 flags, unsigned int index,
unsigned int start, unsigned int count,
void *data)
{
return -EINVAL;
}
static void vfio_cdx_irqs_cleanup(struct vfio_cdx_device *vdev)
{
}
#endif
#endif /* VFIO_CDX_PRIVATE_H */