On Mon, Nov 30, 2020 at 08:37:50PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: c6b11acc5f85b6e11d128fad8e0b7b223aa7e33f > commit: 3394cb084a8d6f5125c69406e5f2909921ecdd07 [9572/9613] arm64: mte: add in-kernel MTE helpers > config: arm64-allyesconfig (attached as .config) > compiler: aarch64-linux-gcc (GCC) 9.3.0 > reproduce (this is a W=1 build): > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3394cb084a8d6f5125c69406e5f2909921ecdd07 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 3394cb084a8d6f5125c69406e5f2909921ecdd07 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > arch/arm64/kernel/mte.c: In function 'set_sctlr_el1_tcf0': > >> arch/arm64/kernel/mte.c:138:17: error: 'struct thread_struct' has no member named 'sctlr_tcf0' > 138 | current->thread.sctlr_tcf0 = tcf0; > | ^ > At top level: > arch/arm64/kernel/mte.c:130:13: warning: 'set_sctlr_el1_tcf0' defined but not used [-Wunused-function] > 130 | static void set_sctlr_el1_tcf0(u64 tcf0) I think that's caused by the conflicts between the arm64 and the mm trees Stephen reported earlier. They are non-trivial and likely something got wrong in the conflict resolution (my fault for not checking before pushing the branch, not blaming Stephen ;)). I dropped the conflicting patches from the arm64 tree. Thanks. -- Catalin