linux-kernel - Re: [PATCH 5.15 000/189] 5.15.35-rc1 review

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Date:   Mon, 18 Apr 2022 12:47:09 -0600
From:   Shuah Khan <skhan@...uxfoundation.org>
To:     Guenter Roeck <linux@...ck-us.net>,
        Holger Hoffstätte <holger@...lied-asynchrony.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org
Cc:     stable@...r.kernel.org, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        slade@...dewatkins.com,
        Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH 5.15 000/189] 5.15.35-rc1 review

On 4/18/22 10:27 AM, Guenter Roeck wrote:
> On 4/18/22 07:07, Holger Hoffstätte wrote:
>> On 2022-04-18 14:10, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 5.15.35 release.
>>> There are 189 patches in this series, all will be posted as a response
>>> to this one.  If anyone has any issues with these being applied, please
>>> let me know.
>>
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hubbub.c: In function hubbub31_verify_allow_pstate_change_high':
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hubbub.c:994:17: error: implicit declaration of function 'udelay' [-Werror=implicit-function-declaration]
>>    994 |                 udelay(1);
>>        |                 ^~~~~~
>>
>> Caused by "drm-amd-display-add-pstate-verification-and-recovery-for-dcn31.patch".
>> Explicitly includng <linux/delay.h> in dcn31_hubbub.c fixes it.
>>
>> Current mainline version of dcn31_hubbub.c does not explicitly include
>> <linux/delay.h>, so there seems to be some general inconsistency wrt.
>> which dcn module includes what.
>>
>> CC'ing Nicholas Kazlauskas.
>>
> Should add: The problem is only seen with 32-bit (i386) builds.
> 

I am seeing the same build failure on x86_64 build on AMD Ryzen 7 4700Gtest system

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_hubbub.c:994:17: error: implicit declaration of function ‘udelay’ [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors


thanks,
-- Shuah