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Message-ID: <917e2fb6-d91a-8ef6-62c0-920271ca2cd4@gmail.com>
Date:   Wed, 9 Mar 2022 19:32:03 -0800
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Subject: Re: [PATCH 4.9 00/24] 4.9.306-rc1 review
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To:     =?UTF-8?Q?Daniel_D=c3=adaz?= <daniel.diaz@linaro.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org
Cc:     stable@vger.kernel.org, torvalds@linux-foundation.org,
        akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org,
        patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@denx.de,
        jonathanh@nvidia.com, sudipm.mukherjee@gmail.com,
        slade@sladewatkins.com
References: <20220309155856.295480966@linuxfoundation.org>
 <2f501345-e847-668e-7ca3-23af49b69224@linaro.org>
 <322280c2-8673-949c-ffd4-4e804a030b89@linaro.org>
From:   Florian Fainelli <f.fainelli@gmail.com>
In-Reply-To: <322280c2-8673-949c-ffd4-4e804a030b89@linaro.org>
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On 3/9/2022 11:18 AM, Daniel Díaz wrote:
> Hello!
> 
> On 09/03/22 12:40, Daniel Díaz wrote:
>> Hello!
>>
>> On 09/03/22 09:59, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 4.9.306 release.
>>> There are 24 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.
>>>
>>> Responses should be made by Fri, 11 Mar 2022 15:58:48 +0000.
>>> Anything received after that time might be too late.
>>>
>>> The whole patch series can be found in one patch at:
>>>     https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.306-rc1.gz 
>>>
>>> or in the git tree and branch at:
>>>     git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git 
>>> linux-4.9.y
>>> and the diffstat can be found below.
>>>
>>> thanks,
>>>
>>> greg k-h
>>
>> Regressions found.
>>
>> The following Arm combinations fail to build:
>> - arm-gcc-8-bcm2835_defconfig
>> - arm-gcc-8-imx_v6_v7_defconfig
>> - arm-gcc-8-omap2plus_defconfig
>> - arm-gcc-9-bcm2835_defconfig
>> - arm-gcc-9-imx_v6_v7_defconfig
>> - arm-gcc-9-omap2plus_defconfig
>> - arm-gcc-10-bcm2835_defconfig
>> - arm-gcc-10-imx_v6_v7_defconfig
>> - arm-gcc-10-omap2plus_defconfig
>> - arm-gcc-11-bcm2835_defconfig
>> - arm-gcc-11-imx_v6_v7_defconfig
>> - arm-gcc-11-omap2plus_defconfig
>>
>> Messages look like this:
>>
>>    /builds/linux/arch/arm/kernel/entry-common.S: Assembler messages:
>>    /builds/linux/arch/arm/kernel/entry-common.S:155: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/kernel/entry-common.S:164: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    make[2]: *** [/builds/linux/scripts/Makefile.build:407: 
>> arch/arm/kernel/entry-common.o] Error 1
>>    /builds/linux/arch/arm/kernel/entry-armv.S: Assembler messages:
>>    /builds/linux/arch/arm/kernel/entry-armv.S:1124: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/kernel/entry-armv.S:1147: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/kernel/entry-armv.S:1170: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/kernel/entry-armv.S:1193: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/kernel/entry-armv.S:1232: Error: 
>> co-processor register expected -- `mcr p15,0,r0,c7,r5,4'
>>    make[2]: *** [/builds/linux/scripts/Makefile.build:407: 
>> arch/arm/kernel/entry-armv.o] Error 1
>>    /builds/linux/arch/arm/mm/cache-v7.S: Assembler messages:
>>    /builds/linux/arch/arm/mm/cache-v7.S:63: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/mm/cache-v7.S:136: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/mm/cache-v7.S:170: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/mm/cache-v7.S:298: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    make[2]: *** [/builds/linux/scripts/Makefile.build:407: 
>> arch/arm/mm/cache-v7.o] Error 1
>>    /builds/linux/arch/arm/mm/tlb-v7.S: Assembler messages:
>>    /builds/linux/arch/arm/mm/tlb-v7.S:88: Error: co-processor register 
>> expected -- `mcr p15,0,r0,c7,r5,4'
>>    make[2]: *** [/builds/linux/scripts/Makefile.build:407: 
>> arch/arm/mm/tlb-v7.o] Error 1
>>    /builds/linux/arch/arm/mm/proc-v7-2level.S: Assembler messages:
>>    /builds/linux/arch/arm/mm/proc-v7-2level.S:58: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/mm/proc-v7-2level.S:60: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    /builds/linux/arch/arm/mm/proc-v7.S:61: Error: co-processor 
>> register expected -- `mcr p15,0,r0,c7,r5,4'
>>    make[2]: *** [/builds/linux/scripts/Makefile.build:407: 
>> arch/arm/mm/proc-v7.o] Error 1
>>    make[2]: Target '__build' not remade because of errors.
> 
> Here's what the bisection throws for this one:

Here is the fix:

https://lore.kernel.org/linux-arm-kernel/E1nS1fu-00GcNN-24@rmk-PC.armlinux.org.uk/
-- 
Florian