Re: [PATCH AUTOSEL 5.5 155/542] drm/amdkfd: remove set but not used variable 'top_dev'

Sasha Levin
2020-02-14T23:59:53Z

On Fri, Feb 14, 2020 at 04:44:29PM -0500, Greg KH wrote:
>On Fri, Feb 14, 2020 at 10:42:27AM -0500, Sasha Levin wrote:
>> From: zhengbin <zhengbin13@huawei.com>
>>
>> [ Upstream commit d191bd678153307573d615bb42da4fcca19fe477 ]
>>
>> Fixes gcc '-Wunused-but-set-variable' warning:
>>
>> drivers/gpu/drm/amd/amdkfd/kfd_iommu.c: In function kfd_iommu_device_init:
>> drivers/gpu/drm/amd/amdkfd/kfd_iommu.c:65:30: warning: variable top_dev set but not used [-Wunused-but-set-variable]
>>
>> Reported-by: Hulk Robot <hulkci@huawei.com>
>> Fixes: 1ae99eab34f9 ("drm/amdkfd: Initialize HSA_CAP_ATS_PRESENT capability in topology codes")
>> Signed-off-by: zhengbin <zhengbin13@huawei.com>
>> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
>> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
>> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>> ---
>> drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 3 ---
>> 1 file changed, 3 deletions(-)
>
>Unless all of these "unused bt set variable" patches are needed for
>"real" fixes, there's no need to add them here as we are NOT building
>the kernel with that option enabled any time soon from what I can tell.
>
>So you can drop a ton of these patches from all of these AUTOSEL
>branches please.

Sigh, I confused the -Wno-unused-but-set-variable flag we pass in the
makefile with -Wunused-but-set-variable. Sorry about all this noise,
I'll drop it.

--
Thanks,
Sasha