linux-kernel - Re: [PATCH] drm/amdgpu/powerplay/polaris10_smumgr: Mark expected switch fall-through

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Date:   Mon, 18 Feb 2019 16:48:11 -0600
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Alex Deucher <alexdeucher@...il.com>
Cc:     Rex Zhu <rex.zhu@....com>, Evan Quan <evan.quan@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "David (ChunMing) Zhou" <David1.Zhou@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Kees Cook <keescook@...omium.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/amdgpu/powerplay/polaris10_smumgr: Mark expected
 switch fall-through



On 2/18/19 4:40 PM, Alex Deucher wrote:
> On Fri, Feb 15, 2019 at 1:50 PM Gustavo A. R. Silva
> <gustavo@...eddedor.com> wrote:
>>
>> In preparation to enabling -Wimplicit-fallthrough, mark switch
>> cases where we are expecting to fall through.
>>
>> Warning level 3 was used: -Wimplicit-fallthrough=3
>>
>> This patch is part of the ongoing efforts to enable
>> -Wimplicit-fallthrough.
>>
>> Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
>> ---
>>  drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
>> index 52abca065764..92de1bbb2e33 100644
>> --- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
>> +++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
>> @@ -2330,6 +2330,7 @@ static uint32_t polaris10_get_offsetof(uint32_t type, uint32_t member)
>>                 case DRAM_LOG_BUFF_SIZE:
>>                         return offsetof(SMU74_SoftRegisters, DRAM_LOG_BUFF_SIZE);
>>                 }
>> +               /* fall through */
> 
> These should be breaks, although I don't think we ever currently hit
> this case.  I've sent out a patch to fix it and applied the rest of
> the radeon and amdgpu patches.  Thanks!
> 

Awesome!

Thanks, Alex.

--
Gustavo