linux-kernel - Re: [PATCH 5.15 000/123] 5.15.196-rc1 review

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Message-ID: <d61b75c9-a6a1-452c-a2be-34959d354739@w6rz.net>
Date: Mon, 27 Oct 2025 21:49:59 -0700
From: Ron Economos <re@...z.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org
Cc: patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
 torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
 linux@...ck-us.net, 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, rwarsow@....de,
 conor@...nel.org, hargar@...rosoft.com, broonie@...nel.org,
 achill@...ill.org, sr@...dewatkins.com
Subject: Re: [PATCH 5.15 000/123] 5.15.196-rc1 review

On 10/27/25 11:34, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.196 release.
> There are 123 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 Wed, 29 Oct 2025 18:34:15 +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/v5.x/stable-review/patch-5.15.196-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-5.15.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

The RISC-V build fails with:

arch/riscv/kernel/cpu.c: In function 'riscv_of_processor_hartid':
arch/riscv/kernel/cpu.c:24:33: error: implicit declaration of function 
'of_get_cpu_hwid'; did you mean 'of_get_cpu_node'? 
[-Werror=implicit-function-declaration]
    24 |         *hart = (unsigned long) of_get_cpu_hwid(node, 0);
       |                                 ^~~~~~~~~~~~~~~
       |                                 of_get_cpu_node
cc1: some warnings being treated as errors

The function of_get_cpu_hwid() doesn't exist in Linux 5.15.x. It was 
introduced in 5.16-rc1. The following patches should be reverted:

87b94f8227b3b654ea6e7670cefb32dab0e570ed RISC-V: Don't fail in 
riscv_of_parent_hartid() for disabled HARTs

568d34c6aafa066bbdb5e7b6aed9c492d81964e8 RISC-V: Don't print details of 
CPUs disabled in DT

And the stable-dep-of patches for the above should also be reverted 
since they cause warnings:

989694ece94da2bbae6c6f3f044994302f923cc8 riscv: cpu: Add 64bit hartid 
support on RV64

8c2544fd913bb7b29ee3af79e0b302036689fe7a RISC-V: Minimal parser for 
"riscv, isa" strings

e0cc917db8fb7b4881ad3e8feb76cefa06f04fe6 RISC-V: Correctly print 
supported extensions

c616540d6b67830bb4345130e8fa3d8e217249a0 iscv: Use of_get_cpu_hwid()