linux-kernel - Re: [PATCH 5.15 000/120] 5.15.82-rc1 review

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Date:   Tue, 6 Dec 2022 01:25:29 -0800
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,
        srw@...dewatkins.net, rwarsow@....de
Subject: Re: [PATCH 5.15 000/120] 5.15.82-rc1 review

On 12/5/22 11:09 AM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.82 release.
> There are 120 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, 07 Dec 2022 19:07:46 +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-5.15.82-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
>
Fails to build on RISC-V RV64 with the following:

arch/riscv/kernel/smp.c: In function ‘handle_IPI’:
arch/riscv/kernel/smp.c:195:44: error: ‘cpu’ undeclared (first use in 
this function)
   195 |                         ipi_cpu_crash_stop(cpu, get_irq_regs());
       |                                            ^~~
arch/riscv/kernel/smp.c:195:44: note: each undeclared identifier is 
reported only once for each function it appears in
arch/riscv/kernel/smp.c:217:22: error: ‘old_regs’ undeclared (first use 
in this function)
   217 |         set_irq_regs(old_regs);
       |                      ^~~~~~~~

It's caused by the patch "riscv: kexec: Fixup crash_smp_send_stop 
without multi cores".

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=linux-5.15.y&id=87cc180470e099ae8f53e5e76cb6f4c1460d6d83

That patch relies on a much older patch that was never backported to 5.15.

The patch "riscv: kexec: Fixup irq controller broken in kexec crash 
path" should also be reverted since it's part of the same series.

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?h=linux-5.15.y&id=3be3dce50bdf92817d16b3495d573186b967484c

Tested-by: Ron Economos <re@...z.net>