Re: [PATCH 5.15 000/309] 5.15.153-rc2 review

["Daniel Díaz" <daniel.diaz@linaro.org>]

Hello!

On 25/03/24 5:59 a. m., Sasha Levin wrote:
> This is the start of the stable review cycle for the 5.15.153 release.
> There are 309 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 Mar 27 11:59:27 AM UTC 2024.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
>          https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-5.15.y&id2=v5.15.152
> 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,
> Sasha

We see other warnings here too, on Ar64, Arm32, x86, i386, MIPS, PowerPC, RISC-V, System/390, SuperH, SPARC, ARC, on multiple combinations of toolchain and kernel configs.

-----8<-----
   /builds/linux/kernel/printk/printk.c:261:13: warning: 'panic_in_progress' defined but not used [-Wunused-function]
     261 | static bool panic_in_progress(void)
         |             ^~~~~~~~~~~~~~~~~
----->8-----

Reverting this commit makes the warning disappear:

   commit d3ba3bc06ffa68aac04cf4f102ec882890a16015
   Author: Stephen Brennan <stephen.s.brennan@oracle.com>
   Date:   Wed Feb 2 09:18:18 2022 -0800

       printk: Add panic_in_progress helper
       
       [ Upstream commit 77498617857f68496b360081dde1a492d40c28b2 ]

Here's a reproducer:

   tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-12 --kconfig tinyconfig


Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Greetings!

Daniel Díaz
daniel.diaz@linaro.org