tree: https://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm.git libnvdimm-pending head: 17c5211450a8fb964757f9f51cae1dc9f973e5ee commit: 77479ec669355699fb028eac068c6711416373f0 [20/22] mm/memremap_pages: Support multiple ranges per invocation config: i386-tinyconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce (this is a W=1 build): git checkout 77479ec669355699fb028eac068c6711416373f0 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the nvdimm/libnvdimm-pending HEAD 17c5211450a8fb964757f9f51cae1dc9f973e5ee builds fine. It only hurts bisectibility. All errors (new ones prefixed by >>): In file included from include/linux/mm.h:28, from include/linux/kallsyms.h:12, from include/linux/bpf.h:21, from include/linux/bpf-cgroup.h:5, from include/linux/cgroup-defs.h:22, from include/linux/cgroup.h:28, from include/linux/memcontrol.h:13, from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/x86/kernel/asm-offsets.c:13: 123 | struct range ranges[]; | ^~~~~~ make[2]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1175: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +123 include/linux/memremap.h 94 95 /** 96 * struct dev_pagemap - metadata for ZONE_DEVICE mappings 97 * @altmap: pre-allocated/reserved memory for vmemmap allocations 98 * @ref: reference count that pins the devm_memremap_pages() mapping 99 * @internal_ref: internal reference if @ref is not provided by the caller 100 * @done: completion for @internal_ref 101 * @type: memory type: see MEMORY_* in memory_hotplug.h 102 * @flags: PGMAP_* flags to specify defailed behavior 103 * @ops: method table 104 * @owner: an opaque pointer identifying the entity that manages this 105 * instance. Used by various helpers to make sure that no 106 * foreign ZONE_DEVICE memory is accessed. 107 * @nr_range: number of ranges to be mapped 108 * @range: range to be mapped when nr_range == 1 109 * @ranges: array of ranges to be mapped when nr_range > 1 110 */ 111 struct dev_pagemap { 112 struct vmem_altmap altmap; 113 struct percpu_ref *ref; 114 struct percpu_ref internal_ref; 115 struct completion done; 116 enum memory_type type; 117 unsigned int flags; 118 const struct dev_pagemap_ops *ops; 119 void *owner; 120 int nr_range; 121 union { 122 struct range range; 124 }; 125 }; 126 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org