| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | FIXED |
Comment # 2
on bug 98372
from Chris Wilson
commit 8a5bbf327aa16025c78491266a6425807c7fbee0 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Fri Oct 21 15:15:40 2016 +0100 drm: Use u64 for intermediate dotclock calculations We have reached the era where monitor bandwidths now exceed 31bits in frequency calculations, though as we stored them in kHz units we are safe from overflow in the modelines for some time. [ 48.723720] UBSAN: Undefined behaviour in ../drivers/gpu/drm/drm_modes.c:325:49 [ 48.726943] signed integer overflow: [ 48.728503] 2240 * 1000000 cannot be represented in type 'int' Reported-by: Martin Liška <marxin.liska@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98372 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: 20161021141540.26837-1-chris@chris-wilson.co.uk">http://patchwork.freedesktop.org/patch/msgid/20161021141540.26837-1-chris@chris-wilson.co.uk
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