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| author | Alex Williamson <alex.williamson@redhat.com> | 2022-01-24 16:11:37 -0700 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2022-02-22 13:45:02 -0700 |
| commit | 6e031ec0e5a2dda53e12e0d2a7e9b15b47a3c502 (patch) | |
| tree | 0a477a34cf5e999415d25330c58014f3b7b5c5d7 /include/linux/vfio_pci_core.h | |
| parent | cfb92440ee71adcc2105b0890bb01ac3cddb8507 (diff) | |
| download | lwn-6e031ec0e5a2dda53e12e0d2a7e9b15b47a3c502.tar.gz lwn-6e031ec0e5a2dda53e12e0d2a7e9b15b47a3c502.zip | |
vfio/pci: Stub vfio_pci_vga_rw when !CONFIG_VFIO_PCI_VGA
Resolve build errors reported against UML build for undefined
ioport_map() and ioport_unmap() functions. Without this config
option a device cannot have vfio_pci_core_device.has_vga set,
so the existing function would always return -EINVAL anyway.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20220123125737.2658758-1-geert@linux-m68k.org
Link: https://lore.kernel.org/r/164306582968.3758255.15192949639574660648.stgit@omen
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/vfio_pci_core.h')
| -rw-r--r-- | include/linux/vfio_pci_core.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index ef9a44b6cf5d..ae6f4838ab75 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -159,8 +159,17 @@ extern ssize_t vfio_pci_config_rw(struct vfio_pci_core_device *vdev, extern ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); +#ifdef CONFIG_VFIO_PCI_VGA extern ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); +#else +static inline ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, + char __user *buf, size_t count, + loff_t *ppos, bool iswrite) +{ + return -EINVAL; +} +#endif extern long vfio_pci_ioeventfd(struct vfio_pci_core_device *vdev, loff_t offset, uint64_t data, int count, int fd); |