[RFC PATCH 6/9] drm/vgem: move IOCTLs numbers to enum

[Maíra Canal]

Bindgen doesn't expand C macros, which makes DRM_IOCTL_VGEM_FENCE_ATTACH
and DRM_IOCTL_VGEM_FENCE_SIGNAL not accessible through the Rust
bindings. So, move the IOCTLs numbers to a enum, preserving the same
values and the same name. This won't produce any functional changes to
the UAPI and it will make it possible to use this UAPI in Rust.

Signed-off-by: Maíra Canal <mca...@igalia.com>
---
 include/uapi/drm/vgem_drm.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/uapi/drm/vgem_drm.h b/include/uapi/drm/vgem_drm.h
index bf66f5db6da8..53ee3af0b25a 100644
--- a/include/uapi/drm/vgem_drm.h
+++ b/include/uapi/drm/vgem_drm.h
@@ -39,9 +39,6 @@ extern "C" {
 #define DRM_VGEM_FENCE_ATTACH  0x1
 #define DRM_VGEM_FENCE_SIGNAL  0x2
 
-#define DRM_IOCTL_VGEM_FENCE_ATTACH    DRM_IOWR( DRM_COMMAND_BASE + 
DRM_VGEM_FENCE_ATTACH, struct drm_vgem_fence_attach)
-#define DRM_IOCTL_VGEM_FENCE_SIGNAL    DRM_IOW( DRM_COMMAND_BASE + 
DRM_VGEM_FENCE_SIGNAL, struct drm_vgem_fence_signal)
-
 struct drm_vgem_fence_attach {
        __u32 handle;
        __u32 flags;
@@ -55,6 +52,12 @@ struct drm_vgem_fence_signal {
        __u32 flags;
 };
 
+/* Note: this is an enum so that it can be resolved by Rust bindgen. */
+enum {
+       DRM_IOCTL_VGEM_FENCE_ATTACH     = DRM_IOWR(DRM_COMMAND_BASE + 
DRM_VGEM_FENCE_ATTACH, struct drm_vgem_fence_attach),
+       DRM_IOCTL_VGEM_FENCE_SIGNAL     = DRM_IOW(DRM_COMMAND_BASE + 
DRM_VGEM_FENCE_SIGNAL, struct drm_vgem_fence_signal),
+};
+
 #if defined(__cplusplus)
 }
 #endif
-- 
2.39.2