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[openeuler:OLK-5.10 2430/2430] mm/hugetlb.c:6315:14: warning: no previous prototype for 'hugetlb_alloc_hugepage_nodemask'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Chen, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: a2b4d661a5ca59dd7cf972c1cce8b98422102ab7 commit: 8deff3a60ce1a9dffb552210f065fc9ed6a55f84 [2430/2430] mm/sharepool: Add mg_sp_alloc_nodemask config: arm64-randconfig-002-20241114 (https://download.01.org/0day-ci/archive/20241201/202412011502.CoFCt6aY-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011502.CoFCt6aY-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011502.CoFCt6aY-lkp@intel.com/ All warnings (new ones prefixed by >>): >> mm/hugetlb.c:6315:14: warning: no previous prototype for 'hugetlb_alloc_hugepage_nodemask' [-Wmissing-prototypes] 6315 | struct page *hugetlb_alloc_hugepage_nodemask(int nid, int flag, nodemask_t *nodemask) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/hugetlb_alloc_hugepage_nodemask +6315 mm/hugetlb.c 6311 6312 /* 6313 * Allocate hugepage without reserve 6314 */ > 6315 struct page *hugetlb_alloc_hugepage_nodemask(int nid, int flag, nodemask_t *nodemask) 6316 { 6317 struct hstate *h = &default_hstate; 6318 gfp_t gfp_mask = htlb_alloc_mask(h); 6319 struct page *page = NULL; 6320 6321 if (nid == NUMA_NO_NODE) 6322 nid = numa_mem_id(); 6323 6324 if (nid < 0 || nid >= MAX_NUMNODES) 6325 return NULL; 6326 6327 if (flag & ~HUGETLB_ALLOC_MASK) 6328 return NULL; 6329 6330 if (enable_charge_mighp) 6331 gfp_mask |= __GFP_ACCOUNT; 6332 6333 if (flag & HUGETLB_ALLOC_NORECLAIM) 6334 gfp_mask &= ~__GFP_RECLAIM; 6335 6336 if (flag & HUGETLB_ALLOC_NORMAL) 6337 page = hugetlb_alloc_hugepage_normal(h, gfp_mask, nid); 6338 else if (flag & HUGETLB_ALLOC_BUDDY) 6339 page = alloc_migrate_huge_page(h, gfp_mask, nid, nodemask); 6340 else 6341 page = alloc_huge_page_nodemask(h, nid, nodemask, gfp_mask); 6342 6343 return page; 6344 } 6345 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2430/2430] arch/arm64/mm/quick_kexec.c:21:13: warning: no previous prototype for 'reserve_quick_kexec'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Kefeng, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: a2b4d661a5ca59dd7cf972c1cce8b98422102ab7 commit: d61f4ca086e99bb481961b1120e10e7a4296c392 [2430/2430] arm64: quick_kexec: Move to stand-alone file config: arm64-randconfig-003-20241114 (https://download.01.org/0day-ci/archive/20241201/202412011507.pSC7pXCi-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011507.pSC7pXCi-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011507.pSC7pXCi-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/arm64/mm/quick_kexec.c:21:13: warning: no previous prototype for 'reserve_quick_kexec' [-Wmissing-prototypes] 21 | void __init reserve_quick_kexec(void) | ^~~~~~~~~~~~~~~~~~~ >> arch/arm64/mm/quick_kexec.c:47:13: warning: no previous prototype for 'request_quick_kexec_res' [-Wmissing-prototypes] 47 | void __init request_quick_kexec_res(struct resource *res) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/reserve_quick_kexec +21 arch/arm64/mm/quick_kexec.c 20 > 21 void __init reserve_quick_kexec(void) 22 { 23 unsigned long long mem_start, mem_len; 24 25 mem_len = quick_kexec_res.end; 26 if (mem_len == 0) 27 return; 28 29 /* Current arm64 boot protocol requires 2MB alignment */ 30 mem_start = memblock_find_in_range(0, arm64_dma_phys_limit, 31 mem_len, SZ_2M); 32 if (mem_start == 0) { 33 pr_warn("cannot allocate quick kexec mem (size:0x%llx)\n", 34 mem_len); 35 quick_kexec_res.end = 0; 36 return; 37 } 38 39 memblock_reserve(mem_start, mem_len); 40 pr_info("quick kexec mem reserved: 0x%016llx - 0x%016llx (%lld MB)\n", 41 mem_start, mem_start + mem_len, mem_len >> 20); 42 43 quick_kexec_res.start = mem_start; 44 quick_kexec_res.end = mem_start + mem_len - 1; 45 } 46 > 47 void __init request_quick_kexec_res(struct resource *res) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1474/1474] kernel/livepatch/core.c:216:13: warning: no previous prototype for function 'arch_klp_skip_resolve'
by kernel test robot 01 Dec '24

01 Dec '24

Hi laokz, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: df4c334beecb4cf58e4e8d63b491aa5ac0a84f46 commit: b8f3220637be1736c165c289c634f27841ac4e01 [1474/1474] livepatch: add arch hook before doing klp_resolve_symbols config: arm64-randconfig-003-20241117 (https://download.01.org/0day-ci/archive/20241201/202412011403.Lq5H9rrB-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011403.Lq5H9rrB-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011403.Lq5H9rrB-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/livepatch/core.c:97:12: warning: no previous prototype for function 'arch_klp_init_func' [-Wmissing-prototypes] int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) ^ kernel/livepatch/core.c:97:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) ^ static >> kernel/livepatch/core.c:216:13: warning: no previous prototype for function 'arch_klp_skip_resolve' [-Wmissing-prototypes] bool __weak arch_klp_skip_resolve(unsigned int type) ^ kernel/livepatch/core.c:216:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool __weak arch_klp_skip_resolve(unsigned int type) ^ static kernel/livepatch/core.c:1767:12: warning: no previous prototype for function 'arch_klp_check_activeness_func' [-Wmissing-prototypes] int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ kernel/livepatch/core.c:1767:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ static kernel/livepatch/core.c:2022:14: warning: no previous prototype for function 'arch_klp_mem_alloc' [-Wmissing-prototypes] void __weak *arch_klp_mem_alloc(size_t size) ^ kernel/livepatch/core.c:2022:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak *arch_klp_mem_alloc(size_t size) ^ static kernel/livepatch/core.c:2027:13: warning: no previous prototype for function 'arch_klp_mem_free' [-Wmissing-prototypes] void __weak arch_klp_mem_free(void *mem) ^ kernel/livepatch/core.c:2027:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_mem_free(void *mem) ^ static kernel/livepatch/core.c:2032:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] void __weak arch_klp_code_modify_prepare(void) ^ kernel/livepatch/core.c:2032:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_prepare(void) ^ static kernel/livepatch/core.c:2036:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] void __weak arch_klp_code_modify_post_process(void) ^ kernel/livepatch/core.c:2036:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_post_process(void) ^ static kernel/livepatch/core.c:2049:12: warning: no previous prototype for function 'arch_klp_check_breakpoint' [-Wmissing-prototypes] int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ kernel/livepatch/core.c:2049:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ static kernel/livepatch/core.c:2063:13: warning: no previous prototype for function 'arch_klp_set_brk_func' [-Wmissing-prototypes] void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ kernel/livepatch/core.c:2063:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ static 9 warnings generated. vim +/arch_klp_skip_resolve +216 kernel/livepatch/core.c 214 215 #ifdef CONFIG_LIVEPATCH_WO_FTRACE > 216 bool __weak arch_klp_skip_resolve(unsigned int type) 217 { 218 return false; 219 } 220 #endif 221 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1474/1474] kernel/livepatch/core.c:97:12: warning: no previous prototype for function 'arch_klp_init_func'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: df4c334beecb4cf58e4e8d63b491aa5ac0a84f46 commit: eabc33c6f2c91168537f10e9275b0921c9f78c45 [1474/1474] livepatch/ppc64: Implement livepatch without ftrace for ppc64be config: arm64-randconfig-003-20241117 (https://download.01.org/0day-ci/archive/20241201/202412011224.cLtYmSDE-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011224.cLtYmSDE-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011224.cLtYmSDE-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/livepatch/core.c:97:12: warning: no previous prototype for function 'arch_klp_init_func' [-Wmissing-prototypes] int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) ^ kernel/livepatch/core.c:97:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) ^ static kernel/livepatch/core.c:1756:12: warning: no previous prototype for function 'arch_klp_check_activeness_func' [-Wmissing-prototypes] int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ kernel/livepatch/core.c:1756:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ static kernel/livepatch/core.c:2011:14: warning: no previous prototype for function 'arch_klp_mem_alloc' [-Wmissing-prototypes] void __weak *arch_klp_mem_alloc(size_t size) ^ kernel/livepatch/core.c:2011:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak *arch_klp_mem_alloc(size_t size) ^ static kernel/livepatch/core.c:2016:13: warning: no previous prototype for function 'arch_klp_mem_free' [-Wmissing-prototypes] void __weak arch_klp_mem_free(void *mem) ^ kernel/livepatch/core.c:2016:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_mem_free(void *mem) ^ static kernel/livepatch/core.c:2021:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] void __weak arch_klp_code_modify_prepare(void) ^ kernel/livepatch/core.c:2021:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_prepare(void) ^ static kernel/livepatch/core.c:2025:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] void __weak arch_klp_code_modify_post_process(void) ^ kernel/livepatch/core.c:2025:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_post_process(void) ^ static kernel/livepatch/core.c:2038:12: warning: no previous prototype for function 'arch_klp_check_breakpoint' [-Wmissing-prototypes] int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ kernel/livepatch/core.c:2038:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ static kernel/livepatch/core.c:2052:13: warning: no previous prototype for function 'arch_klp_set_brk_func' [-Wmissing-prototypes] void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ kernel/livepatch/core.c:2052:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ static 8 warnings generated. vim +/arch_klp_init_func +97 kernel/livepatch/core.c 96 > 97 int __weak arch_klp_init_func(struct klp_object *obj, struct klp_func *func) 98 { 99 return 0; 100 } 101 #endif /* CONFIG_LIVEPATCH_FTRACE */ 102 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1474/1474] kernel/livepatch/core.c:2006:12: warning: no previous prototype for function 'arch_klp_check_breakpoint'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: df4c334beecb4cf58e4e8d63b491aa5ac0a84f46 commit: 470628a716984e1325b92bef4fa2140ff5a062a5 [1474/1474] livepatch: Use breakpoint exception to optimize enabling livepatch config: arm64-randconfig-003-20241117 (https://download.01.org/0day-ci/archive/20241201/202412011107.mRfBU6d7-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011107.mRfBU6d7-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011107.mRfBU6d7-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/livepatch/core.c:1728:12: warning: no previous prototype for function 'arch_klp_check_activeness_func' [-Wmissing-prototypes] int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ kernel/livepatch/core.c:1728:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ static kernel/livepatch/core.c:1983:14: warning: no previous prototype for function 'arch_klp_mem_alloc' [-Wmissing-prototypes] void __weak *arch_klp_mem_alloc(size_t size) ^ kernel/livepatch/core.c:1983:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak *arch_klp_mem_alloc(size_t size) ^ static kernel/livepatch/core.c:1988:13: warning: no previous prototype for function 'arch_klp_mem_free' [-Wmissing-prototypes] void __weak arch_klp_mem_free(void *mem) ^ kernel/livepatch/core.c:1988:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_mem_free(void *mem) ^ static kernel/livepatch/core.c:1993:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] void __weak arch_klp_code_modify_prepare(void) ^ kernel/livepatch/core.c:1993:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_prepare(void) ^ static kernel/livepatch/core.c:1997:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] void __weak arch_klp_code_modify_post_process(void) ^ kernel/livepatch/core.c:1997:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_post_process(void) ^ static >> kernel/livepatch/core.c:2006:12: warning: no previous prototype for function 'arch_klp_check_breakpoint' [-Wmissing-prototypes] int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ kernel/livepatch/core.c:2006:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ static kernel/livepatch/core.c:2011:12: warning: no previous prototype for function 'arch_klp_add_breakpoint' [-Wmissing-prototypes] int __weak arch_klp_add_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ kernel/livepatch/core.c:2011:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_add_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ static kernel/livepatch/core.c:2016:13: warning: no previous prototype for function 'arch_klp_remove_breakpoint' [-Wmissing-prototypes] void __weak arch_klp_remove_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ kernel/livepatch/core.c:2016:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_remove_breakpoint(struct arch_klp_data *arch_data, void *old_func) ^ static >> kernel/livepatch/core.c:2020:13: warning: no previous prototype for function 'arch_klp_set_brk_func' [-Wmissing-prototypes] void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ kernel/livepatch/core.c:2020:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) ^ static 9 warnings generated. vim +/arch_klp_check_breakpoint +2006 kernel/livepatch/core.c 2005 > 2006 int __weak arch_klp_check_breakpoint(struct arch_klp_data *arch_data, void *old_func) 2007 { 2008 return 0; 2009 } 2010 2011 int __weak arch_klp_add_breakpoint(struct arch_klp_data *arch_data, void *old_func) 2012 { 2013 return -EOPNOTSUPP; 2014 } 2015 2016 void __weak arch_klp_remove_breakpoint(struct arch_klp_data *arch_data, void *old_func) 2017 { 2018 } 2019 > 2020 void __weak arch_klp_set_brk_func(struct klp_func_node *func_node, void *new_func) 2021 { 2022 func_node->brk_func = new_func; 2023 } 2024 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1474/1474] kernel/module/strict_rwx.c:36:6: warning: no previous prototype for function 'module_disable_ro'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: df4c334beecb4cf58e4e8d63b491aa5ac0a84f46 commit: c8783f92771c891518257c9deb22cd91d4e1a212 [1474/1474] livepatch/core: Revert module_enable_ro and module_disable_ro config: arm64-randconfig-003-20241117 (https://download.01.org/0day-ci/archive/20241201/202412011012.Rb9u97rY-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412011012.Rb9u97rY-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412011012.Rb9u97rY-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/module/strict_rwx.c:36:6: warning: no previous prototype for function 'module_disable_ro' [-Wmissing-prototypes] void module_disable_ro(const struct module *mod) ^ kernel/module/strict_rwx.c:36:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void module_disable_ro(const struct module *mod) ^ static 1 warning generated. vim +/module_disable_ro +36 kernel/module/strict_rwx.c 34 35 #ifdef CONFIG_LIVEPATCH_WO_FTRACE > 36 void module_disable_ro(const struct module *mod) 37 { 38 if (!IS_ENABLED(CONFIG_STRICT_MODULE_RWX)) 39 return; 40 #ifdef CONFIG_STRICT_MODULE_RWX 41 if (!rodata_enabled) 42 return; 43 #endif 44 45 module_set_memory(mod, MOD_TEXT, set_memory_rw); 46 module_set_memory(mod, MOD_INIT_TEXT, set_memory_rw); 47 module_set_memory(mod, MOD_RODATA, set_memory_rw); 48 module_set_memory(mod, MOD_INIT_RODATA, set_memory_rw); 49 } 50 #endif /* CONFIG_LIVEPATCH_WO_FTRACE */ 51 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2461/2461] lib/../mm/kasan/kasan.h:198:84: warning: 'return' with a value, in function returning void
by kernel test robot 01 Dec '24

01 Dec '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: a2b4d661a5ca59dd7cf972c1cce8b98422102ab7 commit: d5ddd7080c7442f22d6b92d6fed0dacc606013d1 [2461/2461] kasan: sanitize objects when metadata doesn't fit config: arm64-randconfig-001-20241120 (https://download.01.org/0day-ci/archive/20241201/202412010900.FbFVIhnf-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412010900.FbFVIhnf-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412010900.FbFVIhnf-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from lib/test_kasan.c:26: lib/../mm/kasan/kasan.h: In function 'quarantine_put': >> lib/../mm/kasan/kasan.h:198:84: warning: 'return' with a value, in function returning void [-Wreturn-mismatch] 198 | static inline void quarantine_put(struct kmem_cache *cache, void *object) { return false; } | ^~~~~ lib/../mm/kasan/kasan.h:198:20: note: declared here 198 | static inline void quarantine_put(struct kmem_cache *cache, void *object) { return false; } | ^~~~~~~~~~~~~~ vim +/return +198 lib/../mm/kasan/kasan.h 185 186 depot_stack_handle_t kasan_save_stack(gfp_t flags); 187 void kasan_set_track(struct kasan_track *track, gfp_t flags); 188 void kasan_set_free_info(struct kmem_cache *cache, void *object, u8 tag); 189 struct kasan_track *kasan_get_free_track(struct kmem_cache *cache, 190 void *object, u8 tag); 191 192 #if defined(CONFIG_KASAN_GENERIC) && \ 193 (defined(CONFIG_SLAB) || defined(CONFIG_SLUB)) 194 bool quarantine_put(struct kmem_cache *cache, void *object); 195 void quarantine_reduce(void); 196 void quarantine_remove_cache(struct kmem_cache *cache); 197 #else > 198 static inline void quarantine_put(struct kmem_cache *cache, void *object) { return false; } 199 static inline void quarantine_reduce(void) { } 200 static inline void quarantine_remove_cache(struct kmem_cache *cache) { } 201 #endif 202 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 1474/1474] kernel/livepatch/core.c:1689:12: warning: no previous prototype for function 'arch_klp_check_activeness_func'
by kernel test robot 01 Dec '24

01 Dec '24

Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: df4c334beecb4cf58e4e8d63b491aa5ac0a84f46 commit: 8c7d888bedbc3642dcfa0ae682bb9fb2337de170 [1474/1474] livepatch/arm64: Support livepatch without ftrace config: arm64-randconfig-003-20241117 (https://download.01.org/0day-ci/archive/20241201/202412010915.p20h2tra-lkp@…) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412010915.p20h2tra-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412010915.p20h2tra-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/livepatch/core.c:1689:12: warning: no previous prototype for function 'arch_klp_check_activeness_func' [-Wmissing-prototypes] int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ kernel/livepatch/core.c:1689:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, ^ static >> kernel/livepatch/core.c:1913:14: warning: no previous prototype for function 'arch_klp_mem_alloc' [-Wmissing-prototypes] void __weak *arch_klp_mem_alloc(size_t size) ^ kernel/livepatch/core.c:1913:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak *arch_klp_mem_alloc(size_t size) ^ static >> kernel/livepatch/core.c:1918:13: warning: no previous prototype for function 'arch_klp_mem_free' [-Wmissing-prototypes] void __weak arch_klp_mem_free(void *mem) ^ kernel/livepatch/core.c:1918:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_mem_free(void *mem) ^ static >> kernel/livepatch/core.c:1923:13: warning: no previous prototype for function 'arch_klp_code_modify_prepare' [-Wmissing-prototypes] void __weak arch_klp_code_modify_prepare(void) ^ kernel/livepatch/core.c:1923:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_prepare(void) ^ static >> kernel/livepatch/core.c:1927:13: warning: no previous prototype for function 'arch_klp_code_modify_post_process' [-Wmissing-prototypes] void __weak arch_klp_code_modify_post_process(void) ^ kernel/livepatch/core.c:1927:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __weak arch_klp_code_modify_post_process(void) ^ static 5 warnings generated. vim +/arch_klp_check_activeness_func +1689 kernel/livepatch/core.c 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1688 583e6e55fb6aa1 Zheng Yejian 2023-12-23 @1689 int __weak arch_klp_check_activeness_func(struct klp_func *func, int enable, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1690 klp_add_func_t add_func, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1691 struct list_head *func_list) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1692 { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1693 int ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1694 unsigned long func_addr = 0; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1695 unsigned long func_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1696 struct klp_func_node *func_node = NULL; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1697 unsigned long old_func = (unsigned long)func->old_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1698 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1699 func_node = func->func_node; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1700 /* Check func address in stack */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1701 if (enable) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1702 if (func->patched || func->force == KLP_ENFORCEMENT) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1703 return 0; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1704 /* 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1705 * When enable, checking the currently active functions. 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1706 */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1707 if (list_empty(&func_node->func_stack)) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1708 /* 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1709 * Not patched on this function [the origin one] 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1710 */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1711 func_addr = old_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1712 func_size = func->old_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1713 } else { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1714 /* 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1715 * Previously patched function [the active one] 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1716 */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1717 struct klp_func *prev; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1718 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1719 prev = list_first_or_null_rcu(&func_node->func_stack, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1720 struct klp_func, stack_node); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1721 func_addr = (unsigned long)prev->new_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1722 func_size = prev->new_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1723 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1724 /* 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1725 * When preemption is disabled and the replacement area 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1726 * does not contain a jump instruction, the migration 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1727 * thread is scheduled to run stop machine only after the 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1728 * execution of instructions to be replaced is complete. 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1729 */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1730 if (IS_ENABLED(CONFIG_PREEMPTION) || 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1731 (func->force == KLP_NORMAL_FORCE) || 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1732 arch_check_jump_insn(func_addr)) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1733 ret = add_func(func_list, func_addr, func_size, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1734 func->old_name, func->force); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1735 if (ret) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1736 return ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1737 if (func_addr != old_func) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1738 ret = add_func(func_list, old_func, KLP_MAX_REPLACE_SIZE, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1739 func->old_name, func->force); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1740 if (ret) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1741 return ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1742 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1743 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1744 } else { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1745 #ifdef CONFIG_PREEMPTION 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1746 /* 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1747 * No scheduling point in the replacement instructions. Therefore, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1748 * when preemption is not enabled, atomic execution is performed 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1749 * and these instructions will not appear on the stack. 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1750 */ 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1751 if (list_is_singular(&func_node->func_stack)) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1752 func_addr = old_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1753 func_size = func->old_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1754 } else { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1755 struct klp_func *prev; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1756 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1757 prev = list_first_or_null_rcu( 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1758 &func_node->func_stack, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1759 struct klp_func, stack_node); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1760 func_addr = (unsigned long)prev->new_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1761 func_size = prev->new_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1762 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1763 ret = add_func(func_list, func_addr, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1764 func_size, func->old_name, 0); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1765 if (ret) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1766 return ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1767 if (func_addr != old_func) { 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1768 ret = add_func(func_list, old_func, KLP_MAX_REPLACE_SIZE, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1769 func->old_name, 0); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1770 if (ret) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1771 return ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1772 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1773 #endif 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1774 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1775 func_addr = (unsigned long)func->new_func; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1776 func_size = func->new_size; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1777 ret = add_func(func_list, func_addr, 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1778 func_size, func->old_name, 0); 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1779 if (ret) 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1780 return ret; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1781 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1782 return 0; 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1783 } 583e6e55fb6aa1 Zheng Yejian 2023-12-23 1784 :::::: The code at line 1689 was first introduced by commit :::::: 583e6e55fb6aa193b1a82909069e8028c5d5653d livepatch/x86: Support livepatch without ftrace :::::: TO: Zheng Yejian <zhengyejian1(a)huawei.com> :::::: CC: Zheng Yejian <zhengyejian1(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1312/1312] net/netfilter/.tmp_nft_chain_filter.o: warning: objtool: missing symbol for section .text
by kernel test robot 01 Dec '24

01 Dec '24

Hi Florian, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: b5504db0db8375a77340b5bb54c17cfb75d3c754 commit: d209df3e7f7002d9099fdb0f6df0f972b4386a63 [1312/1312] netfilter: nf_tables: fix register ordering config: x86_64-buildonly-randconfig-003-20241128 (https://download.01.org/0day-ci/archive/20241201/202412010909.5LqP6AbS-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412010909.5LqP6AbS-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412010909.5LqP6AbS-lkp@intel.com/ All warnings (new ones prefixed by >>): >> net/netfilter/.tmp_nft_chain_filter.o: warning: objtool: missing symbol for section .text Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for FB_BACKLIGHT Depends on [n]: HAS_IOMEM [=y] && FB [=n] Selected by [m]: - DRM_NOUVEAU [=m] && HAS_IOMEM [=y] && DRM [=y] && PCI [=y] && MMU [=y] && DRM_NOUVEAU_BACKLIGHT [=y] WARNING: unmet direct dependencies detected for FB_BACKLIGHT Depends on [n]: HAS_IOMEM [=y] && FB [=n] Selected by [m]: - DRM_NOUVEAU [=m] && HAS_IOMEM [=y] && DRM [=y] && PCI [=y] && MMU [=y] && DRM_NOUVEAU_BACKLIGHT [=y] -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 2508/2508] drivers/md/md.c:4884:38: sparse: sparse: dereference of noderef expression
by kernel test robot 01 Dec '24

01 Dec '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: a2b4d661a5ca59dd7cf972c1cce8b98422102ab7 commit: 448fbeaf0f07ea578841346b938245f5c5220b9b [2508/2508] md: protect md_thread with rcu config: x86_64-randconfig-123-20241130 (https://download.01.org/0day-ci/archive/20241201/202412010733.0M8HqEii-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241201/202412010733.0M8HqEii-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412010733.0M8HqEii-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) drivers/md/md.c:3392:29: sparse: sparse: self-comparison always evaluates to false drivers/md/md.c:3561:33: sparse: sparse: self-comparison always evaluates to false drivers/md/md.c:4341:36: sparse: sparse: self-comparison always evaluates to false >> drivers/md/md.c:4884:38: sparse: sparse: dereference of noderef expression drivers/md/md.c:5247:30: sparse: sparse: self-comparison always evaluates to false drivers/md/md.c:5284:30: sparse: sparse: self-comparison always evaluates to false drivers/md/md.c:5326:30: sparse: sparse: self-comparison always evaluates to false vim +4884 drivers/md/md.c 24dd469d728dae NeilBrown 2005-11-08 4857 e98a235fdfce57 Yu Kuai 2023-05-31 4858 static void stop_sync_thread(struct mddev *mddev) 24dd469d728dae NeilBrown 2005-11-08 4859 { e98a235fdfce57 Yu Kuai 2023-05-31 4860 if (!test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) e98a235fdfce57 Yu Kuai 2023-05-31 4861 return; 7eec314d7512d5 NeilBrown 2005-11-08 4862 e98a235fdfce57 Yu Kuai 2023-05-31 4863 if (mddev_lock(mddev)) e98a235fdfce57 Yu Kuai 2023-05-31 4864 return; e98a235fdfce57 Yu Kuai 2023-05-31 4865 e98a235fdfce57 Yu Kuai 2023-05-31 4866 /* e98a235fdfce57 Yu Kuai 2023-05-31 4867 * Check again in case MD_RECOVERY_RUNNING is cleared before lock is e98a235fdfce57 Yu Kuai 2023-05-31 4868 * held. e98a235fdfce57 Yu Kuai 2023-05-31 4869 */ e98a235fdfce57 Yu Kuai 2023-05-31 4870 if (!test_bit(MD_RECOVERY_RUNNING, &mddev->recovery)) { e98a235fdfce57 Yu Kuai 2023-05-31 4871 mddev_unlock(mddev); e98a235fdfce57 Yu Kuai 2023-05-31 4872 return; e98a235fdfce57 Yu Kuai 2023-05-31 4873 } 56ccc1125bc141 NeilBrown 2015-05-28 4874 cc1ffe61c026e2 Guoqing Jiang 2020-04-04 4875 if (work_pending(&mddev->del_work)) f851b60db0fd83 NeilBrown 2014-12-11 4876 flush_workqueue(md_misc_wq); e98a235fdfce57 Yu Kuai 2023-05-31 4877 7eec314d7512d5 NeilBrown 2005-11-08 4878 set_bit(MD_RECOVERY_INTR, &mddev->recovery); 1ade24b66e5223 Yu Kuai 2023-05-31 4879 /* 1ade24b66e5223 Yu Kuai 2023-05-31 4880 * Thread might be blocked waiting for metadata update which will now 1ade24b66e5223 Yu Kuai 2023-05-31 4881 * never happen. 1ade24b66e5223 Yu Kuai 2023-05-31 4882 */ 1ade24b66e5223 Yu Kuai 2023-05-31 4883 if (mddev->sync_thread) 1ade24b66e5223 Yu Kuai 2023-05-31 @4884 wake_up_process(mddev->sync_thread->tsk); e98a235fdfce57 Yu Kuai 2023-05-31 4885 8e8e2518fceca4 NeilBrown 2015-06-12 4886 mddev_unlock(mddev); 7eec314d7512d5 NeilBrown 2005-11-08 4887 } e98a235fdfce57 Yu Kuai 2023-05-31 4888 :::::: The code at line 4884 was first introduced by commit :::::: 1ade24b66e52235723afa4554f8cf6ecc2fb29b4 md: refactor idle/frozen_sync_thread() :::::: TO: Yu Kuai <yukuai3(a)huawei.com> :::::: CC: Jialin Zhang <zhangjialin11(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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