CC: [email protected] TO: Jianpeng Ma <[email protected]> CC: Jens Axboe <[email protected]> CC: Coly Li <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-5.13/drivers head: b09729cbbbf28ecdc61f00335684f7566eb740ec commit: 97c62b647fcabd86fe703f9869be7dd91e685f50 [46/61] bcache: initialization of the buddy :::::: branch date: 4 hours ago :::::: commit date: 5 hours ago compiler: microblaze-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> cppcheck possible warnings: (new ones prefixed by >>, may not real problems) >> drivers/md/bcache/nvm-pages.c:156:34: warning: Unsigned variable 'i' can't >> be negative so it is unnecessary to test it. [unsignedPositive] for (i = BCH_MAX_ORDER - 1; i >= 0 ; i--) { ^ vim +156 drivers/md/bcache/nvm-pages.c 97c62b647fcabd Jianpeng Ma 2021-04-14 143 97c62b647fcabd Jianpeng Ma 2021-04-14 144 static void init_nvm_free_space(struct bch_nvm_namespace *ns) 97c62b647fcabd Jianpeng Ma 2021-04-14 145 { 97c62b647fcabd Jianpeng Ma 2021-04-14 146 unsigned int start, end, i; 97c62b647fcabd Jianpeng Ma 2021-04-14 147 struct page *page; 97c62b647fcabd Jianpeng Ma 2021-04-14 148 long long pages; 97c62b647fcabd Jianpeng Ma 2021-04-14 149 pgoff_t pgoff_start; 97c62b647fcabd Jianpeng Ma 2021-04-14 150 97c62b647fcabd Jianpeng Ma 2021-04-14 151 bitmap_for_each_clear_region(ns->pages_bitmap, start, end, 0, ns->pages_total) { 97c62b647fcabd Jianpeng Ma 2021-04-14 152 pgoff_start = start; 97c62b647fcabd Jianpeng Ma 2021-04-14 153 pages = end - start; 97c62b647fcabd Jianpeng Ma 2021-04-14 154 97c62b647fcabd Jianpeng Ma 2021-04-14 155 while (pages) { 97c62b647fcabd Jianpeng Ma 2021-04-14 @156 for (i = BCH_MAX_ORDER - 1; i >= 0 ; i--) { 97c62b647fcabd Jianpeng Ma 2021-04-14 157 if ((pgoff_start % (1 << i) == 0) && (pages >= (1 << i))) 97c62b647fcabd Jianpeng Ma 2021-04-14 158 break; 97c62b647fcabd Jianpeng Ma 2021-04-14 159 } 97c62b647fcabd Jianpeng Ma 2021-04-14 160 97c62b647fcabd Jianpeng Ma 2021-04-14 161 page = nvm_vaddr_to_page(ns, nvm_pgoff_to_vaddr(ns, pgoff_start)); 97c62b647fcabd Jianpeng Ma 2021-04-14 162 page->index = pgoff_start; 97c62b647fcabd Jianpeng Ma 2021-04-14 163 set_page_private(page, i); 97c62b647fcabd Jianpeng Ma 2021-04-14 164 __SetPageBuddy(page); 97c62b647fcabd Jianpeng Ma 2021-04-14 165 list_add((struct list_head *)&page->zone_device_data, &ns->free_area[i]); 97c62b647fcabd Jianpeng Ma 2021-04-14 166 97c62b647fcabd Jianpeng Ma 2021-04-14 167 pgoff_start += 1 << i; 97c62b647fcabd Jianpeng Ma 2021-04-14 168 pages -= 1 << i; 97c62b647fcabd Jianpeng Ma 2021-04-14 169 } 97c62b647fcabd Jianpeng Ma 2021-04-14 170 } 688330711e9ae3 Jianpeng Ma 2021-04-14 171 } 688330711e9ae3 Jianpeng Ma 2021-04-14 172 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
