The arm and arm64 builds failed on Linux next-20241216 due to following build warnings / errors with clang-19 and clang-nightly toolchain. Whereas the gcc-13 builds pass. arm, arm64: * build/clang-19-defconfig * build/clang-nightly-defconfig First seen on Linux next-20241216. Good: next-20241216 Bad: next-20241213 Build log: ----------- fs/netfs/read_retry.c:235:20: warning: variable 'subreq' is uninitialized when used here [-Wuninitialized] 235 | if (list_is_last(&subreq->rreq_link, &stream->subrequests)) | ^~~~~~ fs/netfs/read_retry.c:28:36: note: initialize the variable 'subreq' to silence this warning 28 | struct netfs_io_subrequest *subreq; | ^ | = NULL 1 warning generated. drivers/crypto/qce/sha.c:365:3: error: cannot jump from this goto statement to its label 365 | goto err_free_ahash; | ^ drivers/crypto/qce/sha.c:373:6: note: jump bypasses initialization of variable with __attribute__((cleanup)) 373 | u8 *buf __free(kfree) = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, | ^ 1 error generated. Links: ------- - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241216/testrun/26350650/suite/build/test/clang-19-defconfig/log - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241216/testrun/26350650/suite/build/test/clang-19-defconfig/history/ - https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20241216/testrun/26351207/suite/build/test/clang-19-defconfig/details/ - https://storage.tuxsuite.com/public/linaro/lkft/builds/2qHsa6j5c1HY3GRZFGrxu2ELo3f/ Steps to reproduce: ------------ # tuxmake --runtime podman --target-arch arm64 --toolchain clang-19 --kconfig defconfig LLVM=1 LLVM_IAS=1 metadata: ---- git describe: next-20241216 git repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git sha: e25c8d66f6786300b680866c0e0139981273feba kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/2qHsa8wFmfrlj0VdDqAG408o3l2/config build url: https://storage.tuxsuite.com/public/linaro/lkft/builds/2qHsa8wFmfrlj0VdDqAG408o3l2/ toolchain: clang-19 config: clang-19-defconfig arch: arm64, arm -- Linaro LKFT https://lkft.linaro.org