On Wed, Nov 22, 2017 at 8:44 AM, kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: aa1fbe633d3034f9f838ff13387af04771e68e31 > commit: 5292abe86ee6b74a475d33d38bf5a266dacece0b [13808/14071] mm: fix device-dax pud write-faults triggered by get_user_pages() > config: arm-axm55xx_defconfig (attached as .config) > compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout 5292abe86ee6b74a475d33d38bf5a266dacece0b > # save the attached .config to linux build tree > make.cross ARCH=arm > > All error/warnings (new ones prefixed by >>): > > In file included from arch/arm/include/asm/pgtable.h:32:0, > from include/linux/memremap.h:8, > from include/linux/mm.h:27, > from arch/arm/kernel/asm-offsets.c:15: >>> arch/arm/include/asm/pgtable-3level.h:212:32: error: expected identifier or '(' before '!' token > #define pmd_isclear(pmd, val) (!(pmd_val(pmd) & (val))) > ^ >>> arch/arm/include/asm/pgtable-3level.h:225:26: note: in expansion of macro 'pmd_isclear' > #define pmd_write(pmd) (pmd_isclear((pmd), L_PMD_SECT_RDONLY)) > ^~~~~~~~~~~ >>> arch/arm/include/asm/pgtable-3level.h:228:25: note: in expansion of macro 'pmd_write' > #define pud_write(pud) pmd_write(__pmd(pud_val(pud))) > ^~~~~~~~~ > include/asm-generic/pgtable.h:817:19: note: in expansion of macro 'pud_write' > static inline int pud_write(pud_t pud) > ^~~~~~~~~ > make[2]: *** [arch/arm/kernel/asm-offsets.s] Error 1 > make[2]: Target '__build' not remade because of errors. > make[1]: *** [prepare0] Error 2 > make[1]: Target 'prepare' not remade because of errors. > make: *** [sub-make] Error 2 The build succeeds for me when this commit is based on top of mainline at commit: a3841f94c7ec Merge tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm ...so something in -next causes this to fail. I'll take a look. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
