The following build warnings / errors noticed on aram arm64 defconfig with clang-20 and clang-nightly toolchains on the Linux next-20250911 tag.
Regression Analysis: - New regression? yes - Reproducibility? yes
Build regression: next-20250911: mm/slub.c:3960:27: error: a function declaration without a prototype is deprecated in all versions of C void flush_all_rcu_sheaves()
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Build log mm/slub.c:3960:27: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes] 3960 | void flush_all_rcu_sheaves() | ^ | void 1 error generated.
## Source * Kernel version: 6.17.0-rc5 * Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git * Git describe: 6.17.0-rc5-next-20250911 * Git commit: 8f21d9da46702c4d6951ba60ca8a05f42870fe8f * Architectures: arm, arm64, i386, mips, powerpc, riscv, s390 * Toolchains: clang-20 and clang-nightly * clang: Debian clang version 20.1.8 (++20250809043815+87f0227cb601-1~exp1~20250809163919.3) * Kconfigs: defconfig+lkftconfigs
## Build * Build log: https://qa-reports.linaro.org/api/testruns/29853978/log_file/ * Build details: https://regressions.linaro.org/lkft/linux-next-master/next-20250911/build/cl... * Build plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/32XlFDtH7R... * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/32XlFDtH7RdddaA6FHsku... * Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/32XlFDtH7RdddaA6FHsku... * Build log details: https://regressions.linaro.org/lkft/linux-next-master/next-20250911/log-pars...
-- Linaro LKFT