Hi Mike, Thank you for the patch! Yet something to improve: [auto build test ERROR on 51551d71edbc998fd8c8afa7312db3d270f5998e] url: https://github.com/intel-lab-lkp/linux/commits/Mike-Rapoport/arm-reword-ARCH_FORCE_MAX_ORDER-prompt-and-help-text/20230323-172512 base: 51551d71edbc998fd8c8afa7312db3d270f5998e patch link: https://lore.kernel.org/r/20230323092156.2545741-3-rppt%40kernel.org patch subject: [PATCH 02/14] arm64: drop ranges in definition of ARCH_FORCE_MAX_ORDER config: arm64-randconfig-r022-20230322 (https://download.01.org/0day-ci/archive/20230323/202303232149.Chh6KhiI-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/0522f943c071abf1610651ea40405b7489c50987 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Mike-Rapoport/arm-reword-ARCH_FORCE_MAX_ORDER-prompt-and-help-text/20230323-172512 git checkout 0522f943c071abf1610651ea40405b7489c50987 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/base/regmap/ drivers/iommu/ fs/proc/ mm/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202303232149.Chh6KhiI-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from include/linux/kernel.h:25, from mm/mm_init.c:9: mm/mm_init.c: In function 'find_zone_movable_pfns_for_nodes': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/math.h:61:25: note: in definition of macro 'roundup' 61 | typeof(y) __y = y; \ | ^ mm/mm_init.c:429:55: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 429 | roundup(required_movablecore, MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/math.h:61:25: note: in definition of macro 'roundup' 61 | typeof(y) __y = y; \ | ^ mm/mm_init.c:540:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 540 | roundup(zone_movable_pfn[nid], MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ -- In file included from include/linux/gfp.h:7, from include/linux/mm.h:7, from mm/debug.c:10: mm/debug.c: In function '__dump_page': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ mm/debug.c:70:44: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 70 | if (page < head || (page >= head + MAX_ORDER_NR_PAGES)) { | ^~~~~~~~~~~~~~~~~~ -- In file included from include/linux/build_bug.h:5, from include/linux/container_of.h:5, from include/linux/list.h:5, from include/linux/smp.h:12, from include/linux/kernel_stat.h:5, from mm/memory.c:42: mm/memory.c: In function 'clear_huge_page': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ mm/memory.c:5791:44: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 5791 | if (unlikely(pages_per_huge_page > MAX_ORDER_NR_PAGES)) { | ^~~~~~~~~~~~~~~~~~ mm/memory.c: In function 'copy_user_huge_page': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/compiler.h:78:45: note: in definition of macro 'unlikely' 78 | # define unlikely(x) __builtin_expect(!!(x), 0) | ^ mm/memory.c:5843:44: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 5843 | if (unlikely(pages_per_huge_page > MAX_ORDER_NR_PAGES)) { | ^~~~~~~~~~~~~~~~~~ -- mm/shuffle.c: In function '__shuffle_zone': >> mm/shuffle.c:86:35: warning: left shift count is negative [-Wshift-count-negative] 86 | const int order_pages = 1 << order; | ~~^~~~~~~~ -- In file included from include/vdso/const.h:5, from include/linux/const.h:4, from include/linux/list.h:9, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/debugfs.h:15, from mm/page_owner.c:2: mm/page_owner.c: In function 'pagetypeinfo_showmixedcount_print': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/uapi/linux/const.h:32:50: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/align.h:8:33: note: in expansion of macro '__ALIGN_KERNEL' 8 | #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) | ^~~~~~~~~~~~~~ mm/page_owner.c:298:31: note: in expansion of macro 'ALIGN' 298 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~ mm/page_owner.c:298:46: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 298 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/uapi/linux/const.h:32:61: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/align.h:8:33: note: in expansion of macro '__ALIGN_KERNEL' 8 | #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) | ^~~~~~~~~~~~~~ mm/page_owner.c:298:31: note: in expansion of macro 'ALIGN' 298 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~ mm/page_owner.c:298:46: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 298 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/gfp.h:7, from include/linux/xarray.h:15, from include/linux/list_lru.h:14, from include/linux/fs.h:13: mm/page_owner.c: In function 'read_page_owner': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ mm/page_owner.c:526:43: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 526 | while (!pfn_valid(pfn) && (pfn & (MAX_ORDER_NR_PAGES - 1)) != 0) | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ mm/page_owner.c:543:29: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 543 | if ((pfn & (MAX_ORDER_NR_PAGES - 1)) == 0 && !pfn_valid(pfn)) { | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ mm/page_owner.c:544:32: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 544 | pfn += MAX_ORDER_NR_PAGES - 1; | ^~~~~~~~~~~~~~~~~~ mm/page_owner.c: In function 'init_pages_in_zone': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/uapi/linux/const.h:32:50: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/align.h:8:33: note: in expansion of macro '__ALIGN_KERNEL' 8 | #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) | ^~~~~~~~~~~~~~ mm/page_owner.c:636:31: note: in expansion of macro 'ALIGN' 636 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~ mm/page_owner.c:636:46: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 636 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/uapi/linux/const.h:32:61: note: in definition of macro '__ALIGN_KERNEL_MASK' 32 | #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) | ^~~~ include/linux/align.h:8:33: note: in expansion of macro '__ALIGN_KERNEL' 8 | #define ALIGN(x, a) __ALIGN_KERNEL((x), (a)) | ^~~~~~~~~~~~~~ mm/page_owner.c:636:31: note: in expansion of macro 'ALIGN' 636 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~ mm/page_owner.c:636:46: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 636 | pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); | ^~~~~~~~~~~~~~~~~~ -- In file included from include/linux/kernel.h:26, from arch/arm64/include/asm/cpufeature.h:22, from arch/arm64/include/asm/ptrace.h:11, from arch/arm64/include/asm/irqflags.h:10, from include/linux/irqflags.h:16, from include/linux/spinlock.h:59, from include/linux/mmzone.h:8, from include/linux/gfp.h:7, from include/linux/mm.h:7, from mm/page_isolation.c:6: mm/page_isolation.c: In function 'isolate_single_pageblock': >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:27: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:27: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:27: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:40: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:40: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:28:40: note: in definition of macro '__cmp' 28 | #define __cmp(x, y, op) ((x) op (y) ? (x) : (y)) | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:31:39: note: in definition of macro '__cmp_once' 31 | typeof(x) unique_x = (x); \ | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:31:39: note: in definition of macro '__cmp_once' 31 | typeof(x) unique_x = (x); \ | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ >> include/linux/mmzone.h:33:31: warning: left shift count is negative [-Wshift-count-negative] 33 | #define MAX_ORDER_NR_PAGES (1 << MAX_ORDER) | ^~ include/linux/minmax.h:31:39: note: in definition of macro '__cmp_once' 31 | typeof(x) unique_x = (x); \ | ^ include/linux/minmax.h:74:25: note: in expansion of macro '__careful_cmp' 74 | #define max(x, y) __careful_cmp(x, y, >) | ^~~~~~~~~~~~~ mm/page_isolation.c:329:22: note: in expansion of macro 'max' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~ include/uapi/linux/const.h:31:41: note: in expansion of macro '__ALIGN_KERNEL_MASK' 31 | #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1) | ^~~~~~~~~~~~~~~~~~~ include/linux/align.h:9:33: note: in expansion of macro '__ALIGN_KERNEL' 9 | #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) | ^~~~~~~~~~~~~~ mm/page_isolation.c:329:26: note: in expansion of macro 'ALIGN_DOWN' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~ mm/page_isolation.c:329:56: note: in expansion of macro 'MAX_ORDER_NR_PAGES' 329 | start_pfn = max(ALIGN_DOWN(isolate_pageblock, MAX_ORDER_NR_PAGES), | ^~~~~~~~~~~~~~~~~~ .. vim +16 include/linux/build_bug.h bc6245e5efd70c Ian Abbott 2017-07-10 6 bc6245e5efd70c Ian Abbott 2017-07-10 7 #ifdef __CHECKER__ bc6245e5efd70c Ian Abbott 2017-07-10 8 #define BUILD_BUG_ON_ZERO(e) (0) bc6245e5efd70c Ian Abbott 2017-07-10 9 #else /* __CHECKER__ */ bc6245e5efd70c Ian Abbott 2017-07-10 10 /* bc6245e5efd70c Ian Abbott 2017-07-10 11 * Force a compilation error if condition is true, but also produce a 8788994376d84d Rikard Falkeborn 2019-12-04 12 * result (of value 0 and type int), so the expression can be used bc6245e5efd70c Ian Abbott 2017-07-10 13 * e.g. in a structure initializer (or where-ever else comma expressions bc6245e5efd70c Ian Abbott 2017-07-10 14 * aren't permitted). bc6245e5efd70c Ian Abbott 2017-07-10 15 */ 8788994376d84d Rikard Falkeborn 2019-12-04 @16 #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) 527edbc18a70e7 Masahiro Yamada 2019-01-03 17 #endif /* __CHECKER__ */ 527edbc18a70e7 Masahiro Yamada 2019-01-03 18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
