linux-kernel - Re: [PATCH v5] perf: arm_dsu: Support DSU ACPI devices

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Message-ID: <01794d54-4aeb-431d-dd67-d56ec231a19e@arm.com>
Date:   Tue, 15 Sep 2020 09:21:33 +0100
From:   Suzuki K Poulose <suzuki.poulose@....com>
To:     tuanphan@...eremail.onmicrosoft.com
Cc:     will@...nel.org, mark.rutland@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] perf: arm_dsu: Support DSU ACPI devices

Hi Tuan

On 09/14/2020 05:21 PM, Tuan Phan wrote:

>>>> Reported-by: kernel test robot <lkp@...el.com <mailto:lkp@...el.com>>
>>>>
>>>> All warnings (new ones prefixed by >>):
>>>>
>>>>>> drivers/perf/arm_dsu_pmu.c:799:36: warning: unused variable 
>>>>>> 'dsu_pmu_acpi_match' [-Wunused-const-variable]
>>>>   static const struct acpi_device_id dsu_pmu_acpi_match[] = {
>>>>                                      ^
>>>>   1 warning generated.
>>>>
>>> Do you need me to fix this warning when CONFIG_ACPI not defined?
>>
>> Yes, please. The kernel should compile fine in any config. Any compiler
>> warning is not good (unless the compiler is wrong).
> 
> I will fix it. I asked because with no CONFIG_ACPI, i saw the same 
> message on other drivers.

Please could you share the logs here, we could fix them too. Or patches
welcome.

Cheers
Suzuki