Hi Nicholas, I love your patch! Yet something to improve: [auto build test ERROR on powerpc/next] [also build test ERROR on arm64/for-next/core v5.11-rc6] [cannot apply to hnaz-linux-mm/master next-20210125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/huge-vmalloc-mappings/20210202-190833 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-mpc834x_mds_defconfig (attached as .config) compiler: powerpc-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://github.com/0day-ci/linux/commit/ba7c3aca8bdba641f1cc3cd3da5c19da2b5f721a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Nicholas-Piggin/huge-vmalloc-mappings/20210202-190833 git checkout ba7c3aca8bdba641f1cc3cd3da5c19da2b5f721a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/powerpc/include/asm/book3s/pgtable.h:8, from arch/powerpc/include/asm/pgtable.h:18, from include/linux/pgtable.h:6, from arch/powerpc/include/asm/kup.h:50, from arch/powerpc/include/asm/uaccess.h:9, from include/linux/uaccess.h:11, from arch/powerpc/kernel/module.c:13: arch/powerpc/kernel/module.c: In function 'module_alloc': >> arch/powerpc/include/asm/book3s/32/pgtable.h:189:32: error: 'high_memory' undeclared (first use in this function) 189 | #define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) | ^~~~~~~~~~~ arch/powerpc/kernel/module.c:92:24: note: in expansion of macro 'VMALLOC_START' 92 | unsigned long start = VMALLOC_START; | ^~~~~~~~~~~~~ arch/powerpc/include/asm/book3s/32/pgtable.h:189:32: note: each undeclared identifier is reported only once for each function it appears in 189 | #define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) | ^~~~~~~~~~~ arch/powerpc/kernel/module.c:92:24: note: in expansion of macro 'VMALLOC_START' 92 | unsigned long start = VMALLOC_START; | ^~~~~~~~~~~~~ vim +/high_memory +189 arch/powerpc/include/asm/book3s/32/pgtable.h 63b2bc619565ef Christophe Leroy 2019-02-21 188 3dfcb315d81e66 Aneesh Kumar K.V 2015-12-01 @189 #define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) 3d4247fcc938d0 Christophe Leroy 2020-01-14 190 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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