On Wed, 2024-08-07 at 14:53 +0100, Tudor Ambarus wrote: > Same on my side. Any idea why CONFIG_WERROR is not enabled by more > archs? I see just the two: > arch/x86/configs/i386_defconfig:CONFIG_WERROR=y > arch/x86/configs/x86_64_defconfig:CONFIG_WERROR=y I can't answer that, but it's an opt-in these days, see b339ec9c229a ("kbuild: Only default to -Werror if COMPILE_TEST"). Surely if the concern at the time was runtime testing, then that runtime testing CI infra could have disabled CONFIG_WERROR instead of globally disabling it for everybody. Anyway, I've updated our Pixel build env now. Cheers, Andre'