Hi Zi, [auto build test WARNING on linus/master] [also build test WARNING on v4.10-rc8 next-20170216] [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/Anshuman-Khandual/Enable-parallel-page-migration/20170217-200523 config: i386-tinyconfig (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=i386 All warnings (new ones prefixed by >>): mm/copy_pages_mthread.c: In function 'copy_pages_mthread': >> mm/copy_pages_mthread.c:49:10: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] cpumask = cpumask_of_node(node); ^ vim +/const +49 mm/copy_pages_mthread.c 33 static void copythread(struct work_struct *work) 34 { 35 struct copy_info *info = (struct copy_info *) work; 36 37 copy_pages(info->to, info->from, info->chunk_size); 38 } 39 40 int copy_pages_mthread(struct page *to, struct page *from, int nr_pages) 41 { 42 struct cpumask *cpumask; 43 struct copy_info *work_items; 44 char *vto, *vfrom; 45 unsigned long i, cthreads, cpu, node, chunk_size; 46 int cpu_id_list[32] = {0}; 47 48 node = page_to_nid(to); > 49 cpumask = cpumask_of_node(node); 50 cthreads = nr_copythreads; 51 cthreads = min_t(unsigned int, cthreads, cpumask_weight(cpumask)); 52 cthreads = (cthreads / 2) * 2; 53 work_items = kcalloc(cthreads, sizeof(struct copy_info), GFP_KERNEL); 54 if (!work_items) 55 return -ENOMEM; 56 57 i = 0; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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