Hi Alexandre, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.6-rc4 next-20231003] [cannot apply to efi/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Alexandre-Ghiti/riscv-Use-WRITE_ONCE-when-setting-page-table-entries/20231002-231725 base: linus/master patch link: https://lore.kernel.org/r/20231002151031.110551-3-alexghiti%40rivosinc.com patch subject: [PATCH 2/5] mm: Introduce pudp/p4dp/pgdp_get() functions config: arm-moxart_defconfig (https://download.01.org/0day-ci/archive/20231003/202310031548.53wZmUUH-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231003/202310031548.53wZmUUH-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202310031548.53wZmUUH-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:29: >> include/linux/pgtable.h:310:29: error: function cannot return array type 'pgd_t' (aka 'unsigned int[2]') 310 | static inline pgd_t pgdp_get(pgd_t *pgdp) | ^ >> include/linux/pgtable.h:312:9: error: incompatible pointer to integer conversion returning 'const volatile pmdval_t *' (aka 'const volatile unsigned int *') from a function with result type 'int' [-Wint-conversion] 312 | return READ_ONCE(*pgdp); | ^~~~~~~~~~~~~~~~ include/asm-generic/rwonce.h:47:28: note: expanded from macro 'READ_ONCE' 47 | #define READ_ONCE(x) \ | ^ 48 | ({ \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 49 | compiletime_assert_rwonce_type(x); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 50 | __READ_ONCE(x); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 51 | }) | ~~ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:97:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds] 97 | return (set->sig[3] | set->sig[2] | | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:97:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds] 97 | return (set->sig[3] | set->sig[2] | | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:113:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds] 113 | return (set1->sig[3] == set2->sig[3]) && | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:113:27: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds] 113 | return (set1->sig[3] == set2->sig[3]) && | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:114:5: warning: array index 2 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds] 114 | (set1->sig[2] == set2->sig[2]) && | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:114:21: warning: array index 2 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds] 114 | (set1->sig[2] == set2->sig[2]) && | ^ ~ arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here 17 | unsigned long sig[_NSIG_WORDS]; | ^ In file included from arch/arm/kernel/asm-offsets.c:12: In file included from include/linux/mm.h:1075: In file included from include/linux/huge_mm.h:8: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:6: include/linux/signal.h:156:1: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds] 156 | _SIG_SET_BINOP(sigorsets, _sig_or) vim +310 include/linux/pgtable.h 308 309 #ifndef pgdp_get > 310 static inline pgd_t pgdp_get(pgd_t *pgdp) 311 { > 312 return READ_ONCE(*pgdp); 313 } 314 #endif 315 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
