Following arm64 kunit enabled build failed with gcc-12.
ERROR: modpost: "kunit_running" [drivers/gpu/drm/vc4/vc4.ko] undefined!
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Build error: ------------- make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/build CROSS_COMPILE_COMPAT=arm-linux-gnueabihf- ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc' 'HOSTCC=sccache gcc' olddefconfig .config:10084:warning: override: TRANSPARENT_HUGEPAGE_MADVISE changes choice state make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/build CROSS_COMPILE_COMPAT=arm-linux-gnueabihf- ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc' 'HOSTCC=sccache gcc' In file included from /builds/linux/include/asm-generic/rwonce.h:26, from /builds/linux/arch/arm64/include/asm/rwonce.h:71, from /builds/linux/include/linux/compiler.h:247, from /builds/linux/include/linux/export.h:33, from /builds/linux/include/linux/linkage.h:7, from /builds/linux/include/linux/kernel.h:17, from /builds/linux/fs/btrfs/ioctl.c:6: /builds/linux/include/linux/kasan-checks.h: In function 'btrfs_ioctl_wait_sync': /builds/linux/include/linux/kasan-checks.h:38:27: warning: 'transid' may be used uninitialized [-Wmaybe-uninitialized] 38 | #define kasan_check_write __kasan_check_write | ^~~~~~~~~~~~~~~~~~~ /builds/linux/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here 20 | bool __kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~~~ /builds/linux/fs/btrfs/ioctl.c:3134:13: note: 'transid' declared here 3134 | u64 transid; | ^~~~~~~ /builds/linux/include/linux/kasan-checks.h: In function 'btrfs_ioctl': /builds/linux/include/linux/kasan-checks.h:38:27: warning: 'space_args' may be used uninitialized [-Wmaybe-uninitialized] 38 | #define kasan_check_write __kasan_check_write | ^~~~~~~~~~~~~~~~~~~ /builds/linux/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here 20 | bool __kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~~~ /builds/linux/fs/btrfs/ioctl.c:2973:39: note: 'space_args' declared here 2973 | struct btrfs_ioctl_space_args space_args; | ^~~~~~~~~~ /builds/linux/include/linux/kasan-checks.h:38:27: warning: 'args32' may be used uninitialized [-Wmaybe-uninitialized] 38 | #define kasan_check_write __kasan_check_write | ^~~~~~~~~~~~~~~~~~~ /builds/linux/include/linux/kasan-checks.h:20:6: note: by argument 1 of type 'const volatile void *' to '__kasan_check_write' declared here 20 | bool __kasan_check_write(const volatile void *p, unsigned int size); | ^~~~~~~~~~~~~~~~~~~ /builds/linux/fs/btrfs/ioctl.c:4320:49: note: 'args32' declared here 4320 | struct btrfs_ioctl_send_args_32 args32; | ^~~~~~ ERROR: modpost: "kunit_running" [drivers/gpu/drm/vc4/vc4.ko] undefined! make[2]: *** [/builds/linux/scripts/Makefile.modpost:137: Module.symvers] Error 1 make[2]: Target '__modpost' not remade because of errors. make[1]: *** [/builds/linux/Makefile:1967: modpost] Error 2
build log: ----------- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230105/tes...
Easy steps to reproduce with tuxmake: ------------------------- # To install tuxmake on your system globally: # sudo pip3 install -U tuxmake # # See https://docs.tuxmake.org/ for complete documentation. # Original tuxmake command with fragments listed below. # tuxmake --runtime podman --target-arch arm64 --toolchain gcc-12 --kconfig defconfig --kconfig-add https://raw.githubusercontent.com/Linaro/meta-lkft/kirkstone/meta/recipes-ke... --kconfig-add https://raw.githubusercontent.com/Linaro/meta-lkft/kirkstone/meta/recipes-ke... --kconfig-add https://raw.githubusercontent.com/Linaro/meta-lkft/kirkstone/meta/recipes-ke... --kconfig-add https://raw.githubusercontent.com/Linaro/meta-lkft/kirkstone/meta/recipes-ke... --kconfig-add https://raw.githubusercontent.com/Linaro/meta-lkft/kirkstone/meta/recipes-ke... --kconfig-add CONFIG_ARM64_MODULE_PLTS=y --kconfig-add CONFIG_SYN_COOKIES=y --kconfig-add CONFIG_SCHEDSTATS=y --kconfig-add CONFIG_KASAN=y --kconfig-add CONFIG_KUNIT=y --kconfig-add CONFIG_KUNIT_ALL_TESTS=y CROSS_COMPILE_COMPAT=arm-linux-gnueabihf-
tuxmake --runtime podman --target-arch arm64 --toolchain gcc-12 --kconfig https://storage.tuxsuite.com/public/linaro/lkft/builds/2JtJj8Fpj9wmxgtyz3nkp... CROSS_COMPILE_COMPAT=arm-linux-gnueabihf-
-- Linaro LKFT https://lkft.linaro.org