On Sun, Feb 13, 2022 at 07:51:34PM +0800, kernel test robot wrote: >tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >head: b81b1829e7e39f6cebdf6e4d5484eacbceda8554 >commit: 536f4217ced62b671bd759f6b549621a5654a70f mm: page->mapping folio->mapping should have the same offset >date: 2 weeks ago >config: parisc-randconfig-r004-20220213 (https://download.01.org/0day-ci/archive/20220213/202202131932.diaqTbxo-lkp@xxxxxxxxx/config) >compiler: hppa64-linux-gcc (GCC) 11.2.0 >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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=536f4217ced62b671bd759f6b549621a5654a70f > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout 536f4217ced62b671bd759f6b549621a5654a70f > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc prepare > >If you fix the issue, kindly add following tag as appropriate >Reported-by: kernel test robot <lkp@xxxxxxxxx> > >All errors (new ones prefixed by >>): > > 18 | if (!(word & (~0ul << 32))) { > | ^~ > include/asm-generic/bitops/__fls.h:20:22: warning: left shift count >= width of type [-Wshift-count-overflow] > 20 | word <<= 32; > | ^~~ > include/asm-generic/bitops/__fls.h:23:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 23 | if (!(word & (~0ul << (BITS_PER_LONG-16)))) { > | ^~ > include/asm-generic/bitops/__fls.h:27:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 27 | if (!(word & (~0ul << (BITS_PER_LONG-8)))) { > | ^~ > include/asm-generic/bitops/__fls.h:31:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 31 | if (!(word & (~0ul << (BITS_PER_LONG-4)))) { > | ^~ > include/asm-generic/bitops/__fls.h:35:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 35 | if (!(word & (~0ul << (BITS_PER_LONG-2)))) { > | ^~ > include/asm-generic/bitops/__fls.h:39:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 39 | if (!(word & (~0ul << (BITS_PER_LONG-1)))) > | ^~ > In file included from arch/parisc/include/asm/bitops.h:201, > from include/linux/bitops.h:33, > from include/linux/kernel.h:22, > from arch/parisc/include/asm/bug.h:5, > from include/linux/bug.h:5, > from include/linux/thread_info.h:13, > from include/asm-generic/preempt.h:5, > from ./arch/parisc/include/generated/asm/preempt.h:1, > from include/linux/preempt.h:78, > from include/linux/rcupdate.h:27, > from include/linux/rculist.h:11, > from include/linux/pid.h:5, > from include/linux/sched.h:14, > from arch/parisc/kernel/asm-offsets.c:18: > include/asm-generic/bitops/__fls.h: In function '__fls': > include/asm-generic/bitops/__fls.h:18:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 18 | if (!(word & (~0ul << 32))) { > | ^~ > include/asm-generic/bitops/__fls.h:20:22: warning: left shift count >= width of type [-Wshift-count-overflow] > 20 | word <<= 32; > | ^~~ > include/asm-generic/bitops/__fls.h:23:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 23 | if (!(word & (~0ul << (BITS_PER_LONG-16)))) { > | ^~ > include/asm-generic/bitops/__fls.h:27:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 27 | if (!(word & (~0ul << (BITS_PER_LONG-8)))) { > | ^~ > include/asm-generic/bitops/__fls.h:31:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 31 | if (!(word & (~0ul << (BITS_PER_LONG-4)))) { > | ^~ > include/asm-generic/bitops/__fls.h:35:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 35 | if (!(word & (~0ul << (BITS_PER_LONG-2)))) { > | ^~ > include/asm-generic/bitops/__fls.h:39:28: warning: left shift count >= width of type [-Wshift-count-overflow] > 39 | if (!(word & (~0ul << (BITS_PER_LONG-1)))) > | ^~ > In file included from arch/parisc/include/asm/processor.h:18, > from arch/parisc/include/asm/thread_info.h:6, > from include/linux/thread_info.h:60, > from include/asm-generic/preempt.h:5, > from ./arch/parisc/include/generated/asm/preempt.h:1, > from include/linux/preempt.h:78, > from include/linux/rcupdate.h:27, > from include/linux/rculist.h:11, > from include/linux/pid.h:5, > from include/linux/sched.h:14, > from arch/parisc/kernel/asm-offsets.c:18: > arch/parisc/include/asm/pdc.h: At top level: > arch/parisc/include/asm/pdc.h:77:24: warning: 'struct pdc_memory_table' declared inside parameter list will not be visible outside of this definition or declaration > 77 | struct pdc_memory_table *tbl, unsigned long entries); > | ^~~~~~~~~~~~~~~~ > arch/parisc/include/asm/pdc.h:76:30: warning: 'struct pdc_memory_table_raddr' declared inside parameter list will not be visible outside of this definition or declaration > 76 | int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr, > | ^~~~~~~~~~~~~~~~~~~~~~ > In file included from include/linux/compiler_types.h:65, > from <command-line>: > include/linux/smp.h:34:33: error: requested alignment '20' is not a positive power of 2 > 34 | __aligned(sizeof(struct __call_single_data)); > | ^~~~~~~~~~~~~~~~~~ > include/linux/compiler_attributes.h:33:68: note: in definition of macro '__aligned' > 33 | #define __aligned(x) __attribute__((__aligned__(x))) > | ^ > In file included from include/linux/container_of.h:5, > from include/linux/list.h:5, > from include/linux/rculist.h:10, > from include/linux/pid.h:5, > from include/linux/sched.h:14, > from arch/parisc/kernel/asm-offsets.c:18: > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, lru) == offsetof(struct folio, lru)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:263:1: note: in expansion of macro 'FOLIO_MATCH' > 263 | FOLIO_MATCH(lru, lru); Sounds each FOLIO_MATCH() gets an compile error? Compile on my machine looks good to me. How this happens? > | ^~~~~~~~~~~ >>> include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, mapping) == offsetof(struct folio, mapping)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:264:1: note: in expansion of macro 'FOLIO_MATCH' > 264 | FOLIO_MATCH(mapping, mapping); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, compound_head) == offsetof(struct folio, lru)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:265:1: note: in expansion of macro 'FOLIO_MATCH' > 265 | FOLIO_MATCH(compound_head, lru); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, index) == offsetof(struct folio, index)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:266:1: note: in expansion of macro 'FOLIO_MATCH' > 266 | FOLIO_MATCH(index, index); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, private) == offsetof(struct folio, private)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:267:1: note: in expansion of macro 'FOLIO_MATCH' > 267 | FOLIO_MATCH(private, private); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, _mapcount) == offsetof(struct folio, _mapcount)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:268:1: note: in expansion of macro 'FOLIO_MATCH' > 268 | FOLIO_MATCH(_mapcount, _mapcount); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, _refcount) == offsetof(struct folio, _refcount)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:269:1: note: in expansion of macro 'FOLIO_MATCH' > 269 | FOLIO_MATCH(_refcount, _refcount); > | ^~~~~~~~~~~ > include/linux/build_bug.h:78:41: error: static assertion failed: "offsetof(struct page, memcg_data) == offsetof(struct folio, memcg_data)" > 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) > | ^~~~~~~~~~~~~~ > include/linux/build_bug.h:77:34: note: in expansion of macro '__static_assert' > 77 | #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) > | ^~~~~~~~~~~~~~~ > include/linux/mm_types.h:261:9: note: in expansion of macro 'static_assert' > 261 | static_assert(offsetof(struct page, pg) == offsetof(struct folio, fl)) > | ^~~~~~~~~~~~~ > include/linux/mm_types.h:271:1: note: in expansion of macro 'FOLIO_MATCH' > 271 | FOLIO_MATCH(memcg_data, memcg_data); > | ^~~~~~~~~~~ > In file included from include/linux/mm.h:33, > from include/linux/pid_namespace.h:7, > from include/linux/ptrace.h:10, > from arch/parisc/kernel/asm-offsets.c:20: > include/linux/pgtable.h: In function 'pud_index': > include/linux/pgtable.h:77:25: warning: right shift count >= width of type [-Wshift-count-overflow] > 77 | return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1); > | ^~ > include/linux/pgtable.h: In function 'pgd_offset_pgd': > include/linux/pgtable.h:84:29: warning: right shift count >= width of type [-Wshift-count-overflow] > 84 | #define pgd_index(a) (((a) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1)) > | ^~ > include/linux/pgtable.h:124:23: note: in expansion of macro 'pgd_index' > 124 | return (pgd + pgd_index(address)); > | ^~~~~~~~~ > In file included from include/linux/stringhash.h:7, > from include/linux/dcache.h:15, > > >vim +78 include/linux/build_bug.h > >bc6245e5efd70c Ian Abbott 2017-07-10 60 >6bab69c65013be Rasmus Villemoes 2019-03-07 61 /** >6bab69c65013be Rasmus Villemoes 2019-03-07 62 * static_assert - check integer constant expression at build time >6bab69c65013be Rasmus Villemoes 2019-03-07 63 * >6bab69c65013be Rasmus Villemoes 2019-03-07 64 * static_assert() is a wrapper for the C11 _Static_assert, with a >6bab69c65013be Rasmus Villemoes 2019-03-07 65 * little macro magic to make the message optional (defaulting to the >6bab69c65013be Rasmus Villemoes 2019-03-07 66 * stringification of the tested expression). >6bab69c65013be Rasmus Villemoes 2019-03-07 67 * >6bab69c65013be Rasmus Villemoes 2019-03-07 68 * Contrary to BUILD_BUG_ON(), static_assert() can be used at global >6bab69c65013be Rasmus Villemoes 2019-03-07 69 * scope, but requires the expression to be an integer constant >6bab69c65013be Rasmus Villemoes 2019-03-07 70 * expression (i.e., it is not enough that __builtin_constant_p() is >6bab69c65013be Rasmus Villemoes 2019-03-07 71 * true for expr). >6bab69c65013be Rasmus Villemoes 2019-03-07 72 * >6bab69c65013be Rasmus Villemoes 2019-03-07 73 * Also note that BUILD_BUG_ON() fails the build if the condition is >6bab69c65013be Rasmus Villemoes 2019-03-07 74 * true, while static_assert() fails the build if the expression is >6bab69c65013be Rasmus Villemoes 2019-03-07 75 * false. >6bab69c65013be Rasmus Villemoes 2019-03-07 76 */ >6bab69c65013be Rasmus Villemoes 2019-03-07 77 #define static_assert(expr, ...) __static_assert(expr, ##__VA_ARGS__, #expr) >6bab69c65013be Rasmus Villemoes 2019-03-07 @78 #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) >6bab69c65013be Rasmus Villemoes 2019-03-07 79 > >:::::: The code at line 78 was first introduced by commit >:::::: 6bab69c65013bed5fce9f101a64a84d0385b3946 build_bug.h: add wrapper for _Static_assert > >:::::: TO: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx> >:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> > >--- >0-DAY CI Kernel Test Service, Intel Corporation >https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx -- Wei Yang Help you, Help me
