On Wed, Mar 10, 2021 at 11:37:53AM +0530, Naresh Kamboju wrote: > Hi Oscar, Hi Naresh, > While building the linux next 20210310 tag for x86_64 architecture with clang-12 > and gcc-9 the following warnings / errors were noticed. > > arch/x86/mm/init_64.c:1585:6: error: implicit declaration of function > 'vmemmap_use_new_sub_pmd' [-Werror,-Wimplicit-function-declaration] > vmemmap_use_new_sub_pmd(addr, next); > ^ > arch/x86/mm/init_64.c:1591:4: error: implicit declaration of function > 'vmemmap_use_sub_pmd' [-Werror,-Wimplicit-function-declaration] > vmemmap_use_sub_pmd(addr, next); > ^ > 2 errors generated. > make[3]: *** [scripts/Makefile.build:271: arch/x86/mm/init_64.o] Error 1 > > Reported-by: Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> Yes, this was also reported by Zi Yan here [1]. Looking into your .config, seems to be the same issue as you have CONFIG_SPARSE_VMEMMAP but !CONFIG_MEMORY_HOTPLUG. This version fixes those compilation errors. Thanks for reporting it anyway! [1] https://lore.kernel.org/linux-mm/YEfoH8US4YVxak7r@localhost.localdomain/T/#ma566ff437ff4bf8fcc5f80f62cd0cc8761edd12d > Steps to reproduce: > ------------------- > # TuxMake is a command line tool and Python library that provides > # portable and repeatable Linux kernel builds across a variety of > # architectures, toolchains, kernel configurations, and make targets. > # > # TuxMake supports the concept of runtimes. > # See https://docs.tuxmake.org/runtimes/, for that to work it requires > # that you install podman or docker on your system. > # > # To install tuxmake on your system globally: > # sudo pip3 install -U tuxmake > # > # See https://docs.tuxmake.org/ for complete documentation. > > > tuxmake --runtime podman --target-arch x86_64 --toolchain clang-12 > --kconfig defconfig --kconfig-add > https://builds.tuxbuild.com/1pYCPt4WlgSfSdv1BULm6ABINeJ/config > > > Build pipeline error link, > https://gitlab.com/Linaro/lkft/mirrors/next/linux-next/-/jobs/1085496613#L428 > > -- > Linaro LKFT > https://lkft.linaro.org -- Oscar Salvador SUSE L3
