[PATCH AUTOSEL 5.4 129/459] drm/amdgpu: remove set but not used variable 'invalid'

Sasha Levin
2020-02-14T16:04:46Z

From: yu kuai <yukuai3@huawei.com>

[ Upstream commit 9e089a29c696d86d26e79737bafbce94738fb462 ]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c: In function
‘amdgpu_amdkfd_evict_userptr’:
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c:1665:6: warning:
variable ‘invalid’ set but not used [-Wunused-but-set-variable]

'invalid' is never used, so can be removed. Thus 'atomic_inc_return'
can be replaced as 'atomic_inc'

Fixes: 5ae0283e831a ("drm/amdgpu: Add userptr support for KFD")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
index 6d021ecc8d598..77e5dcecb4612 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
@@ -1657,10 +1657,10 @@ int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem,
struct mm_struct *mm)
{
struct amdkfd_process_info *process_info = mem->process_info;
- int invalid, evicted_bos;
+ int evicted_bos;
int r = 0;

- invalid = atomic_inc_return(&mem->invalid);
+ atomic_inc(&mem->invalid);
evicted_bos = atomic_inc_return(&process_info->evicted_bos);
if (evicted_bos == 1) {
/* First eviction, stop the queues */