CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: "Russell King (Oracle)" <rmk+ker...@armlinux.org.uk> CC: Ard Biesheuvel <a...@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 88e6c0207623874922712e162e25d9dafd39661e commit: c46c2c9b43f4f08f20dc06417fbf7091e4ca6d34 ARM: unwind: set frame.pc correctly for current-thread unwinding date: 3 weeks ago :::::: branch date: 4 hours ago :::::: commit date: 3 weeks ago compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> cppcheck possible warnings: (new ones prefixed by >>, may not real problems) >> arch/arm/kernel/return_address.c:44:1: warning: Label 'here' is not used. >> There is #if in function body so the label might be used in code that is >> removed by the preprocessor. [unusedLabelConfiguration] here: ^ -- >> arch/arm/mm/ioremap.c:72:46: warning: Parameter 'vaddr' can be declared with >> const [constParameter] struct static_vm *find_static_vm_vaddr(void *vaddr) ^ >> arch/arm/mm/ioremap.c:85:11: warning: Uninitialized variables: svm.vm, >> svm.list [uninitvar] return svm; ^ arch/arm/mm/ioremap.c:81:16: note: Assuming condition is false if (vm->addr > vaddr) ^ arch/arm/mm/ioremap.c:81:16: note: Assuming condition is false if (vm->addr > vaddr) ^ arch/arm/mm/ioremap.c:85:11: note: Uninitialized variables: svm.vm, svm.list return svm; ^ -- >> arch/arm/kernel/stacktrace.c:163:1: warning: Label 'here' is not used. There >> is #if in function body so the label might be used in code that is removed >> by the preprocessor. [unusedLabelConfiguration] here: ^ >> arch/arm/kernel/stacktrace.c:133:61: warning: Parameter 'tsk' can be >> declared with const [constParameter] static noinline void __save_stack_trace(struct task_struct *tsk, ^ -- >> arch/arm/kernel/setup.c:744:2: warning: There is an unknown macro here >> somewhere. Configuration is required. If for_each_machine_desc is a macro >> then please configure it. [unknownMacro] for_each_machine_desc(p) ^ >> arch/arm/kernel/traps.c:497:1: warning: There is an unknown macro here >> somewhere. Configuration is required. If NOKPROBE_SYMBOL is a macro then >> please configure it. [unknownMacro] NOKPROBE_SYMBOL(do_undefinstr) ^ >> arch/arm/mm/dma-mapping.c:999:2: warning: There is an unknown macro here >> somewhere. Configuration is required. If for_each_sg is a macro then please >> configure it. [unknownMacro] for_each_sg(sg, s, i, j) ^ vim +/here +44 arch/arm/kernel/return_address.c 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 32 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 33 void *return_address(unsigned int level) 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 34 { 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 35 struct return_address_data data; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 36 struct stackframe frame; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 37 01223f365074d6 Keun-O Park 2013-03-18 38 data.level = level + 2; 01223f365074d6 Keun-O Park 2013-03-18 39 data.addr = NULL; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 40 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 41 frame.fp = (unsigned long)__builtin_frame_address(0); a556ee1247b997 Behan Webster 2014-09-27 42 frame.sp = current_stack_pointer; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 43 frame.lr = (unsigned long)__builtin_return_address(0); c46c2c9b43f4f0 Russell King (Oracle 2022-03-09 @44) here: c46c2c9b43f4f0 Russell King (Oracle 2022-03-09 45) frame.pc = (unsigned long)&&here; fed240d9c97438 Masami Hiramatsu 2021-10-21 46 #ifdef CONFIG_KRETPROBES fed240d9c97438 Masami Hiramatsu 2021-10-21 47 frame.kr_cur = NULL; fed240d9c97438 Masami Hiramatsu 2021-10-21 48 frame.tsk = current; fed240d9c97438 Masami Hiramatsu 2021-10-21 49 #endif 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 50 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 51 walk_stackframe(&frame, save_return_addr, &data); 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 52 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 53 if (!data.level) 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 54 return data.addr; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 55 else 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 56 return NULL; 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 57 } 4bf1fa5a34aa2d Uwe Kleine-König 2009-07-21 58 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
