linux-kernel - Re: [PATCH v2] drm/amd/display: enable more strict compile checks

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Date:   Wed, 24 May 2023 15:54:26 -0400
From:   Harry Wentland <harry.wentland@....com>
To:     Hamza Mahfooz <hamza.mahfooz@....com>,
        Alex Deucher <alexdeucher@...il.com>
Cc:     amd-gfx@...ts.freedesktop.org, Leo Li <sunpeng.li@....com>,
        Kenny Ho <kenny.ho@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Daniel Vetter <daniel@...ll.ch>,
        Alex Deucher <alexander.deucher@....com>,
        David Airlie <airlied@...il.com>,
        Christian König <christian.koenig@....com>
Subject: Re: [PATCH v2] drm/amd/display: enable more strict compile checks



On 5/24/23 15:27, Hamza Mahfooz wrote:
> On 5/24/23 15:22, Alex Deucher wrote:
>> On Wed, May 24, 2023 at 3:20 PM Hamza Mahfooz <hamza.mahfooz@....com> wrote:
>>>
>>> Currently, there are quite a number of issues that are quite easy for
>>> the CI to catch, that slip through the cracks. Among them, there are
>>> unused variable and indentation issues. Also, we should consider all
>>> warnings to be compile errors, since the community will eventually end
>>> up complaining about them. So, enable -Werror, -Wunused and
>>> -Wmisleading-indentation for all kernel builds.
>>>
>>> Cc: Alex Deucher <alexander.deucher@....com>
>>> Cc: Harry Wentland <harry.wentland@....com>
>>> Cc: Kenny Ho <kenny.ho@....com>
>>> Signed-off-by: Hamza Mahfooz <hamza.mahfooz@....com>
>>> ---
>>> v2: fix grammatical error
>>> ---
>>>   drivers/gpu/drm/amd/display/Makefile | 2 ++
>>>   1 file changed, 2 insertions(+)
>>>
>>> diff --git a/drivers/gpu/drm/amd/display/Makefile b/drivers/gpu/drm/amd/display/Makefile
>>> index 0d610cb376bb..3c44162ebe21 100644
>>> --- a/drivers/gpu/drm/amd/display/Makefile
>>> +++ b/drivers/gpu/drm/amd/display/Makefile
>>> @@ -26,6 +26,8 @@
>>>
>>>   AMDDALPATH = $(RELATIVE_AMD_DISPLAY_PATH)
>>>
>>> +subdir-ccflags-y += -Werror -Wunused -Wmisleading-indentation
>>> +
>>
>> Care to enable this for the rest of amdgpu as well?  Or send out an
>> additional patch to do that?  Either way:
>> Reviewed-by: Alex Deucher <alexander.deucher@....com>
> 
> As far as I can tell, if `CONFIG_DRM_AMD_DC` is set it will run these
> checks on at least the base driver code.
> 

It's probable best to put that into amdgpu/Makefile in that case.

Harry

>>
>> Alex
>>
>>>   subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/inc/
>>>   subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/inc/hw
>>>   subdir-ccflags-y += -I$(FULL_AMD_DISPLAY_PATH)/dc/clk_mgr
>>> -- 
>>> 2.40.1
>>>