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| author | Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> | 2018-02-02 21:12:56 -0800 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2018-02-15 11:49:35 -0800 |
| commit | 23effc1100975a36953255c1db737f18adf8dd0d (patch) | |
| tree | ebef9e3337d8638ec487bc5fe337e0c5549cda51 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 1b29b7ca7d43be309d399c996910c04a8ba0c195 (diff) | |
drm/amdgpu: 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. This could cause
potential problems if the return value is used in arithmetic operations
with a 32-bit reference HW vblank count. Explicitly typecasting this down
to u32 either fixes a potential problem or serves to add clarity in case
the typecasting was implicitly done.
Cc: Keith Packard <keithp@keithp.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com> for both this patch
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180203051302.9974-4-dhinakaran.pandiyan@intel.com
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions