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@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202508070308.opy5dIFX-lkp@xxxxxxxxx/ Reviewed-by: Nikhil Agarwal <nikhil.agarwal@xxxxxxx> Signed-off-by: Nipun Gupta <nipun.gupta@xxxxxxx> --- 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 drivers/vfio/cdx/Makefile | 6 +++++- drivers/vfio/cdx/private.h | 14 ++++++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/vfio/cdx/Makefile b/drivers/vfio/cdx/Makefile index df92b320122a..dadbef2419ea 100644 --- a/drivers/vfio/cdx/Makefile +++ b/drivers/vfio/cdx/Makefile @@ -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 diff --git a/drivers/vfio/cdx/private.h b/drivers/vfio/cdx/private.h index dc56729b3114..5343eb61bec4 100644 --- a/drivers/vfio/cdx/private.h +++ b/drivers/vfio/cdx/private.h @@ -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 -ENODEV; +} + +static void vfio_cdx_irqs_cleanup(struct vfio_cdx_device *vdev) +{ +} +#endif #endif /* VFIO_CDX_PRIVATE_H */ -- 2.34.1
