[Intel-xe] [PATCH v3 3/3] drm/xe/query: zero the region info

[Matthew Auld]

There are also some reserved fields in here which are not currently
cleared when handing back to userspace. Otherwise we might run into
issues if we later wish to use them.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Reviewed-by: Lucas De Marchi lucas.demarchi at intel.com
---
 drivers/gpu/drm/xe/xe_query.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index 6e904e97f456..f9f21bd1bfd7 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -115,16 +115,13 @@ static int query_memory_usage(struct xe_device *xe,
 		return -EINVAL;
 	}
 
-	usage = kmalloc(size, GFP_KERNEL);
+	usage = kzalloc(size, GFP_KERNEL);
 	if (XE_IOCTL_ERR(xe, !usage))
 		return -ENOMEM;
 
-	usage->pad = 0;
-
 	man = ttm_manager_type(&xe->ttm, XE_PL_TT);
 	usage->regions[0].mem_class = XE_MEM_REGION_CLASS_SYSMEM;
 	usage->regions[0].instance = 0;
-	usage->regions[0].pad = 0;
 	usage->regions[0].min_page_size = PAGE_SIZE;
 	usage->regions[0].max_page_size = PAGE_SIZE;
 	usage->regions[0].total_size = man->size << PAGE_SHIFT;
@@ -138,7 +135,6 @@ static int query_memory_usage(struct xe_device *xe,
 				XE_MEM_REGION_CLASS_VRAM;
 			usage->regions[usage->num_regions].instance =
 				usage->num_regions;
-			usage->regions[usage->num_regions].pad = 0;
 			usage->regions[usage->num_regions].min_page_size =
 				xe->info.vram_flags & XE_VRAM_FLAGS_NEED64K ?
 				SZ_64K : PAGE_SIZE;
-- 
2.39.1