Hi Chen, [auto build test ERROR on mmotm/master] [also build test ERROR on v4.9-rc3 next-20161028] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Chen-Feng/mm-cma-improve-utilization-of-cma-pages/20161103-173624 base: git://git.cmpxchg.org/linux-mmotm.git master config: x86_64-randconfig-x011-201644 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): In file included from include/linux/slab.h:14:0, from include/linux/crypto.h:24, from arch/x86/kernel/asm-offsets.c:8: include/linux/gfp.h: In function 'gfpflags_to_migratetype': >> include/linux/gfp.h:274:10: error: 'MIGRATE_CMA' undeclared (first use in this function) return MIGRATE_CMA; ^~~~~~~~~~~ include/linux/gfp.h:274:10: note: each undeclared identifier is reported only once for each function it appears in make[2]: *** [arch/x86/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 vim +/MIGRATE_CMA +274 include/linux/gfp.h 268 { 269 VM_WARN_ON((gfp_flags & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK); 270 BUILD_BUG_ON((1UL << GFP_MOVABLE_SHIFT) != ___GFP_MOVABLE); 271 BUILD_BUG_ON((___GFP_MOVABLE >> GFP_MOVABLE_SHIFT) != MIGRATE_MOVABLE); 272 273 if (IS_ENABLED(CONFIG_CMA) && gfp_flags & __GFP_MOVABLE) > 274 return MIGRATE_CMA; 275 276 if (unlikely(page_group_by_mobility_disabled)) 277 return MIGRATE_UNMOVABLE; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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