Stable rc builds failed on arm64, arm, arc, mips, parisc, ppc, riscv, sh, s390 and x86_64. Build failed branches list: - Stable-rc Linux 5.4.102-rc2 - Stable-rc Linux 4.19.178-rc2 - Stable-rc Linux 4.14.223-rc2 - Stable-rc Linux 4.9.259-rc1 Failed build set list: - arm64 (allnoconfig) with gcc-8, gcc-9 and gcc-10 - arm64 (tinyconfig) with gcc-8, gcc-9 and gcc-10 <many> - x86_64 (allnoconfig) with gcc-8, gcc-9 and gcc-10 - x86_64 (tinyconfig) with gcc-8, gcc-9 and gcc-10 # to reproduce this build locally: tuxmake --target-arch=arm64 --kconfig=allnoconfig --toolchain=gcc-9 --wrapper=sccache --environment=SCCACHE_BUCKET=sccache.tuxbuild.com --runtime=podman --image=public.ecr.aws/tuxmake/arm64_gcc-9 config default kernel xipkernel modules dtbs dtbs-legacy debugkernel make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc' 'HOSTCC=sccache gcc' allnoconfig make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- 'CC=sccache aarch64-linux-gnu-gcc' 'HOSTCC=sccache gcc' In file included from include/net/ndisc.h:53, from include/net/ipv6.h:18, from include/linux/sunrpc/clnt.h:28, from include/linux/nfs_fs.h:32, from init/do_mounts.c:23: include/linux/icmpv6.h: In function 'icmpv6_ndo_send': include/linux/icmpv6.h:70:2: error: implicit declaration of function '__icmpv6_send'; did you mean 'icmpv6_send'? [-Werror=implicit-function-declaration] 70 | __icmpv6_send(skb_in, type, code, info, &parm); | ^~~~~~~~~~~~~ | icmpv6_send cc1: some warnings being treated as errors make[2]: *** [scripts/Makefile.build:261: init/do_mounts.o] Error 1 Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> Build log link, https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/jobs/1064182703#L61 https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc/-/jobs/1064593353#L62 -- Linaro LKFT https://lkft.linaro.org