On 09/11/2018 00:40, Daniele Ceraolo Spurio wrote:
We dump the info as an array of u8, so we want to know the length
in number of bytes. Current code is still safe because the
variable we use BITS_PER_TYPE on is a u8.
Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_query.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index 5821002cad42..6fc4b8eeab42 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -27,8 +27,7 @@ static int query_topology_info(struct drm_i915_private *dev_priv,
slice_length = sizeof(sseu->slice_mask);
subslice_length = sseu->max_slices *
- DIV_ROUND_UP(sseu->max_subslices,
- BITS_PER_TYPE(sseu->subslice_mask[0]));
+ DIV_ROUND_UP(sseu->max_subslices, BITS_PER_BYTE);
eu_length = sseu->max_slices * sseu->max_subslices *
DIV_ROUND_UP(sseu->max_eus_per_subslice, BITS_PER_BYTE);
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