diff options
| author | Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> | 2018-02-03 08:12:59 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-02-15 22:49:57 +0300 |
| commit | f4c0468e4bd64b7cd00e2db309925728fc72bf8b (patch) | |
| tree | 85cb8e6e8cdf11ecca4f0e3699d30d2d5e6618a9 /drivers/gpu/drm/drm_plane.c | |
| parent | 3abe241337993a1e358a67427518af0162c4b769 (diff) | |
| download | linux-f4c0468e4bd64b7cd00e2db309925728fc72bf8b.tar.xz | |
drm/atomic: Handle 64-bit return from drm_crtc_vblank_count()
570e86963a51 ("drm: Widen vblank count to 64-bits [v3]") changed the
return type for drm_crtc_vblank_count() to u64.
The flip ioctl receives a 32-bit target sequence from user space and is
compared against the current sequence from drm_crtc_vblank_count(). So,
typecast return from drm_crtc_vblank_count() explicitly to add clarity.
__drm_crtcs_state.last_vblank_count however only ever stores the value from
drm_crtc_vblank_count() and can be upgraded to u64.
Cc: Keith Packard <keithp@keithp.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180203051302.9974-7-dhinakaran.pandiyan@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 2c90519576a3..c3419ee09ff0 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -944,7 +944,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, if (r) return r; - current_vblank = drm_crtc_vblank_count(crtc); + current_vblank = (u32)drm_crtc_vblank_count(crtc); switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) { case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE: |