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| /openbmc/linux/drivers/gpu/drm/i915/ |
| H A D | i915_gem_gtt.h | 69603dbb Wed Feb 17 08:20:46 CST 2016 Alan <gnomes@lxorguk.ukuu.org.uk> i915: cast before shifting in i915_pte_count
Otherwise a pde_shift big enough to overflow a u32 will be truncated before
assignment
Note: We never asked for ranges spanning a 4G boundary, so this issue
doesn't cause a real problem.
Signed-off-by: Alan Cox <alan@linux.intel.com>
[danvet: Add note why this isn't a real problem.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160217142043.4947.60447.stgit@localhost.localdomain
69603dbb Wed Feb 17 08:20:46 CST 2016 Alan <gnomes@lxorguk.ukuu.org.uk> i915: cast before shifting in i915_pte_count
Otherwise a pde_shift big enough to overflow a u32 will be truncated before
assignment
Note: We never asked for ranges spanning a 4G boundary, so this issue
doesn't cause a real problem.
Signed-off-by: Alan Cox <alan@linux.intel.com>
[danvet: Add note why this isn't a real problem.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20160217142043.4947.60447.stgit@localhost.localdomain
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