tree: https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git google-commits head: cfb9e87ff8218995cac59c8225da1b31f2fb2507 commit: d5fd1c46a3cebbef254611682b95c315163e4620 [5671/6115] parisc/unwind: call callback with toplevel address config: parisc-randconfig-r036-20211004 (attached as .config) compiler: hppa-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/groeck/linux-staging.git/commit/?id=d5fd1c46a3cebbef254611682b95c315163e4620 git remote add groeck-staging https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git git fetch --no-tags groeck-staging google-commits git checkout d5fd1c46a3cebbef254611682b95c315163e4620 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=parisc SHELL=/bin/bash arch/parisc/kernel/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from include/linux/kernel.h:11, from include/linux/list.h:9, from include/linux/module.h:12, from arch/parisc/kernel/stacktrace.c:11: arch/parisc/kernel/stacktrace.c: In function 'dump_trace': >> arch/parisc/kernel/stacktrace.c:20:13: error: 'regs' undeclared (first use in this function) 20 | if (regs) | ^~~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ arch/parisc/kernel/stacktrace.c:20:9: note: in expansion of macro 'if' 20 | if (regs) | ^~ arch/parisc/kernel/stacktrace.c:20:13: note: each undeclared identifier is reported only once for each function it appears in 20 | if (regs) | ^~~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ arch/parisc/kernel/stacktrace.c:20:9: note: in expansion of macro 'if' 20 | if (regs) | ^~ >> arch/parisc/kernel/stacktrace.c:21:22: error: implicit declaration of function 'fn' [-Werror=implicit-function-declaration] 21 | if (!fn(cookie, regs->iaoq[0])) | ^~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ arch/parisc/kernel/stacktrace.c:21:17: note: in expansion of macro 'if' 21 | if (!fn(cookie, regs->iaoq[0])) | ^~ >> arch/parisc/kernel/stacktrace.c:21:25: error: 'cookie' undeclared (first use in this function) 21 | if (!fn(cookie, regs->iaoq[0])) | ^~~~~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ arch/parisc/kernel/stacktrace.c:21:17: note: in expansion of macro 'if' 21 | if (!fn(cookie, regs->iaoq[0])) | ^~ cc1: some warnings being treated as errors vim +/regs +20 arch/parisc/kernel/stacktrace.c 15 16 static void dump_trace(struct task_struct *task, struct stack_trace *trace) 17 { 18 struct unwind_frame_info info; 19 > 20 if (regs) > 21 if (!fn(cookie, regs->iaoq[0])) 22 return; 23 24 unwind_frame_init_task(&info, task, NULL); 25 26 /* unwind stack and save entries in stack_trace struct */ 27 trace->nr_entries = 0; 28 while (trace->nr_entries < trace->max_entries) { 29 if (unwind_once(&info) < 0 || info.ip == 0) 30 break; 31 32 if (__kernel_text_address(info.ip)) 33 trace->entries[trace->nr_entries++] = info.ip; 34 } 35 } 36 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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