I'm seeing the following allmodconfig and allyesconfig build failures on arm, arm64, riscv and x86_64.
## Build error sound/soc/codecs/nau8325.c:430:13: error: variable 'n2_max' is uninitialized when used here [-Werror,-Wuninitialized] 430 | *n2_sel = n2_max; | ^~~~~~ sound/soc/codecs/nau8325.c:389:52: note: initialize the variable 'n2_max' to silence this warning 389 | int i, j, mclk, mclk_max, ratio, ratio_sel, n2_max; | ^ | = 0 sound/soc/codecs/nau8325.c:431:11: error: variable 'ratio_sel' is uninitialized when used here [-Werror,-Wuninitialized] 431 | ratio = ratio_sel; | ^~~~~~~~~ sound/soc/codecs/nau8325.c:389:44: note: initialize the variable 'ratio_sel' to silence this warning 389 | int i, j, mclk, mclk_max, ratio, ratio_sel, n2_max; | ^ | = 0 2 errors generated. make[6]: *** [scripts/Makefile.build:287: sound/soc/codecs/nau8325.o] Error 1
First seen on 6.18.2-rc1 Good: 6.18.1-rc1 Bad: 6.18.2-rc1
And these build regressions also seen on 6.17.13-rc2.
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
## Build * kernel: 6.18.2-rc1 * git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git * git commit: 103c79e44ce7c81882928abab98b96517a8bce88 * git describe: v6.18-645-g103c79e44ce7 * test details: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.18.y/build/v6.18-...
## Test Regressions (compared to v6.18-30-g7d4c06f4000f) * Build, - clang-21-allmodconfig - clang-21-allyesconfig - clang-nightly-allyesconfig
## Metric Regressions (compared to v6.18-30-g7d4c06f4000f)
## Test Fixes (compared to v6.18-30-g7d4c06f4000f)
## Metric Fixes (compared to v6.18-30-g7d4c06f4000f)
## Test result summary total: 101371, pass: 83553, fail: 3486, skip: 14332, xfail: 0
## Build Summary * arc: 5 total, 5 passed, 0 failed * arm: 139 total, 138 passed, 1 failed * arm64: 57 total, 51 passed, 6 failed * i386: 18 total, 18 passed, 0 failed * mips: 34 total, 33 passed, 1 failed * parisc: 4 total, 4 passed, 0 failed * powerpc: 40 total, 39 passed, 1 failed * riscv: 25 total, 24 passed, 1 failed * s390: 22 total, 21 passed, 1 failed * sh: 5 total, 5 passed, 0 failed * sparc: 4 total, 3 passed, 1 failed * x86_64: 49 total, 46 passed, 3 failed
## Test suites summary * boot * commands * kselftest-arm64 * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-efivarfs * kselftest-exec * kselftest-fpu * kselftest-ftrace * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-kcmp * kselftest-kvm * kselftest-membarrier * kselftest-memfd * kselftest-mincore * kselftest-mm * kselftest-mqueue * kselftest-net * kselftest-net-mptcp * kselftest-openat2 * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-rust * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-tc-testing * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user_events * kselftest-vDSO * kselftest-x86 * kunit * kvm-unit-tests * lava * libgpiod * libhugetlbfs * log-parser-boot * log-parser-build-clang * log-parser-build-gcc * log-parser-test * ltp-capability * ltp-commands * ltp-containers * ltp-controllers * ltp-cpuhotplug * ltp-crypto * ltp-cve * ltp-dio * ltp-fcntl-locktests * ltp-fs * ltp-fs_bind * ltp-fs_perms_simple * ltp-hugetlb * ltp-math * ltp-mm * ltp-nptl * ltp-pty * ltp-sched * ltp-smoke * ltp-syscalls * ltp-tracing * perf * rcutorture * rt-tests-cyclicdeadline * rt-tests-pi-stress * rt-tests-pmqtest * rt-tests-rt-migrate-test * rt-tests-signaltest
-- Linaro LKFT https://lkft.linaro.org