[Intel-gfx] [PATCH] drm/i915/query: fix subslice length

[Daniele Ceraolo Spurio]

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 at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
 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);
 
-- 
2.19.1