[PATCH] drm/nouveau/nvif: use struct_size()

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Use struct_size() instead of hand writing it.
This is less verbose and more informative.

Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
---
 drivers/gpu/drm/nouveau/nvif/object.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvif/object.c b/drivers/gpu/drm/nouveau/nvif/object.c
index 4d1aaee8fe15..4bd693aa4ee0 100644
--- a/drivers/gpu/drm/nouveau/nvif/object.c
+++ b/drivers/gpu/drm/nouveau/nvif/object.c
@@ -65,7 +65,7 @@ nvif_object_sclass_get(struct nvif_object *object, struct nvif_sclass **psclass)
 	u32 size;
 
 	while (1) {
-		size = sizeof(*args) + cnt * sizeof(args->sclass.oclass[0]);
+		size = struct_size(args, sclass.oclass, cnt);
 		if (!(args = kmalloc(size, GFP_KERNEL)))
 			return -ENOMEM;
 		args->ioctl.version = 0;
-- 
2.30.2




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