On Mon, 27 Oct 2025 at 14:26, Naresh Kamboju naresh.kamboju@linaro.org wrote:

The following S390 allyesconfig build regressions noticed on the Linux next-20251027 tag with gcc-14.

• S390, build
  • gcc-14-allyesconfig

First seen on next-20251027 Good: next-20251024 Bad: next-20251027

Regression Analysis:

• New regression? yes
• Reproducibility? yes

Build regression: next-20251027: pf1550-onkey.c:154:12: error: 'pf1550_onkey_resume' defined but not used [-Werror=unused-function]

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

Anders bisected this down to, 9acb215cbebd ("Input: pf1550 - add onkey support")

## Build error drivers/input/misc/pf1550-onkey.c:154:12: error: 'pf1550_onkey_resume' defined but not used [-Werror=unused-function] 154 | static int pf1550_onkey_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~ drivers/input/misc/pf1550-onkey.c:133:12: error: 'pf1550_onkey_suspend' defined but not used [-Werror=unused-function] 133 | static int pf1550_onkey_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[6]: *** [/builds/linux/scripts/Makefile.build:287: drivers/input/misc/pf1550-onkey.o] Error 1

## Source

• Kernel version: 6.18.0-rc2-next-20251027
• Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
• Git describe: next-20251027
• Git commit: 8fec172c82c2b5f6f8e47ab837c1dc91ee3d1b87
• Architectures: S390
• Toolchains: gcc-14
• Kconfigs: allyesconfig

## Build

• Test log: https://storage.tuxsuite.com/public/linaro/lkft/builds/34dKrowtK5wNPnem1T5LS...
• Test details:

https://regressions.linaro.org/lkft/linux-next-master/next-20251027/log-pars...

• Build plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/34dKrowtK5...
• Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/34dKrowtK5wNPnem1T5LS...
• Kernel config:

https://storage.tuxsuite.com/public/linaro/lkft/builds/34dKrowtK5wNPnem1T5LS...

-- Linaro LKFT