Re: next/master build: 147 builds: 21 failed, 126 passed, 102 errors, 149 warnings (next-20200626)

On Fri, Jun 26, 2020 at 07:32:14AM -0700, kernelci.org bot wrote:

Today's -next fails to build on arm64 in a number of configurations:

arm64:
    defconfig: (clang-10) FAIL
    defconfig: (clang-9) FAIL
    defconfig: (gcc-8) FAIL
    defconfig+CONFIG_CPU_BIG_ENDIAN=y: (gcc-8) FAIL
    defconfig+CONFIG_RANDOMIZE_BASE=y: (gcc-8) FAIL
    defconfig+kselftest: (gcc-8) FAIL

Due to:

defconfig (arm64, clang-9) — FAIL, 3 errors, 0 warnings, 0 section mismatches

Errors:
    mm/memory-failure.c:1827:3: error: implicit declaration of function 'page_handle_poison' [-Werror,-Wimplicit-function-declaration]
    mm/memory-failure.c:1837:9: error: implicit declaration of function 'page_handle_poison' [-Werror,-Wimplicit-function-declaration]
    mm/memory-failure.c:1870:7: error: implicit declaration of function 'page_handle_poison' [-Werror,-Wimplicit-function-declaration]

which looks like it was introduced by baed01e5fe3096f29e (mm,hwpoison:
rework soft offline for free pages), reverting that (and some of the
subsequent commits in the same series) fixes the build for me.