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Message-ID: <77e34b55-b114-e807-b81e-a5525350e547@quicinc.com>
Date: Wed, 5 Jun 2024 11:31:26 -0700
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: Nathan Chancellor <nathan@...nel.org>
CC: <freedreno@...ts.freedesktop.org>, Rob Clark <robdclark@...il.com>,
"Sean
Paul" <sean@...rly.run>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
"Dmitry
Baryshkov" <dmitry.baryshkov@...aro.org>,
Marijn Suijten
<marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, "Daniel
Vetter" <daniel@...ll.ch>,
Connor Abbott <cwabbott0@...il.com>, <dri-devel@...ts.freedesktop.org>,
<seanpaul@...omium.org>, <quic_jesszhan@...cinc.com>,
Rob Clark <robdclark@...omium.org>, <linux-arm-msm@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] drm/msm/a6xx: use __unused__ to fix compiler warnings
for gen7_* includes
Hi Nathan
On 6/5/2024 11:05 AM, Nathan Chancellor wrote:
> Hi Abhinav,
>
> Just a drive by style comment.
>
> On Tue, Jun 04, 2024 at 05:38:28PM -0700, Abhinav Kumar wrote:
>> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
>> index 0a7717a4fc2f..a958e2b3c025 100644
>> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
>> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
>> @@ -8,19 +8,15 @@
>> #include "a6xx_gpu_state.h"
>> #include "a6xx_gmu.xml.h"
>>
>> -/* Ignore diagnostics about register tables that we aren't using yet. We don't
>> - * want to modify these headers too much from their original source.
>> - */
>> -#pragma GCC diagnostic push
>> -#pragma GCC diagnostic ignored "-Wunused-variable"
>> -#pragma GCC diagnostic ignored "-Wunused-const-variable"
>> +static const unsigned int *gen7_0_0_external_core_regs[] __attribute((__unused__));
>> +static const unsigned int *gen7_2_0_external_core_regs[] __attribute((__unused__));
>> +static const unsigned int *gen7_9_0_external_core_regs[] __attribute((__unused__));
>> +static struct gen7_sptp_cluster_registers gen7_9_0_sptp_clusters[] __attribute((__unused__));
>
> Please do not open code attributes. This is available as either
> '__always_unused' or '__maybe_unused', depending on the context.
> checkpatch would have warned about this if it was '__attribute__'
> instead of '__attribute'.
>
Thanks for the note. Let me update the patch to use __always_unused.
> Cheers,
> Nathan
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