Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 84fae133 authored by Muhammad Falak R Wani's avatar Muhammad Falak R Wani Committed by Alex Deucher
Browse files

drm/amdgpu: Replace rcu_assign_pointer() with RCU_INIT_POINTER() 



The rcu_assign_pointer() ensures that the initialization of a structure
is carried out before storing a pointer to that structre. It is always
safe to use RCU_INIT_POINTER() to NULL a pointer, instead of
rcu_assign_pointer().
This results in slightly smaller/faster code.

The following semantic patch was used:
<smpl>

@@
@@

- rcu_assign_pointer
+ RCU_INIT_POINTER
  (..., NULL)

</smpl>

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarMuhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 6b8812eb

drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c

+1 −1
Original line number Diff line number Diff line
@@ -198,7 +198,7 @@ void amdgpu_fence_process(struct amdgpu_ring *ring) 


		/* There is always exactly one thread signaling this fence slot */

		fence = rcu_dereference_protected(*ptr, 1);

		rcu_assign_pointer(*ptr, NULL);

		RCU_INIT_POINTER(*ptr, NULL);



		BUG_ON(!fence);