drm/msm: Remove DRM_MSM_NUM_IOCTLS

The ioctl array is sparsely populated but the compiler will make sure
that it is sufficiently sized for all the values that we have so we
can safely use ARRAY_SIZE() instead of having a constantly changing
#define in the uapi header.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/msm_drv.c

@@ -842,7 +842,7 @@ static struct drm_driver msm_driver = {
 	.debugfs_init       = msm_debugfs_init,
 #endif
 	.ioctls             = msm_ioctls,
-	.num_ioctls         = DRM_MSM_NUM_IOCTLS,
+	.num_ioctls         = ARRAY_SIZE(msm_ioctls),
 	.fops               = &fops,
 	.name               = "msm",
 	.desc               = "MSM Snapdragon DRM",

include/uapi/drm/msm_drm.h

@@ -261,7 +261,6 @@ struct drm_msm_gem_madvise {
 #define DRM_MSM_GEM_SUBMIT             0x06
 #define DRM_MSM_WAIT_FENCE             0x07
 #define DRM_MSM_GEM_MADVISE            0x08
-#define DRM_MSM_NUM_IOCTLS             0x09
 
 #define DRM_IOCTL_MSM_GET_PARAM        DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GET_PARAM, struct drm_msm_param)
 #define DRM_IOCTL_MSM_GEM_NEW          DRM_IOWR(DRM_COMMAND_BASE + DRM_MSM_GEM_NEW, struct drm_msm_gem_new)