Hi Jim, [FYI, it's a private test report for your RFC patch.] [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on linus/master v5.14-rc7 next-20210820] [cannot apply to linux/master] [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] url: https://github.com/0day-ci/linux/commits/Jim-Cromie/use-DYNAMIC_DEBUG-to-... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: m68k-randconfig-r025-20210822 (attached as .config) compiler: m68k-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://github.com/0day-ci/linux/commit/4d886cec521fe5747753921aab07fa15d... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jim-Cromie/use-DYNAMIC_DEBUG-to-implement-DRM-debug/20210823-062136 git checkout 4d886cec521fe5747753921aab07fa15dad79b3c # 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=m68k SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): lib/dynamic_debug.c: In function 'ddebug_exec_queries': 593 | query = kstrndup(query_in, PAGE_SIZE, GFP_KERNEL); | ^~~~~ | query_in lib/dynamic_debug.c:593:9: note: each undeclared identifier is reported only once for each function it appears in lib/dynamic_debug.c: In function 'dynamic_debug_exec_queries': 613 | return ddebug_exec_queries(qry, modname, NULL); | ^~~ | query lib/dynamic_debug.c: In function 'ddebug_exec_queries': 611 | int dynamic_debug_exec_queries(const char *query, const char *modname) | ^~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 615 | EXPORT_SYMBOL_GPL(dynamic_debug_exec_queries); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:164:41: note: in expansion of macro '_EXPORT_SYMBOL' 164 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:615:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL' 615 | EXPORT_SYMBOL_GPL(dynamic_debug_exec_queries); | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:611:5: note: previous definition of 'dynamic_debug_exec_queries' with type 'int(const char *, const char *)' 611 | int dynamic_debug_exec_queries(const char *query, const char *modname) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:164:41: note: in expansion of macro '_EXPORT_SYMBOL' 164 | #define EXPORT_SYMBOL_GPL(sym) _EXPORT_SYMBOL(sym, "_gpl") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:615:1: note: in expansion of macro 'EXPORT_SYMBOL_GPL' 615 | EXPORT_SYMBOL_GPL(dynamic_debug_exec_queries); | ^~~~~~~~~~~~~~~~~ 659 | EXPORT_SYMBOL(param_set_dyndbg); | ^~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:659:1: note: in expansion of macro 'EXPORT_SYMBOL' 659 | EXPORT_SYMBOL(param_set_dyndbg); | ^~~~~~~~~~~~~ lib/dynamic_debug.c:629:5: note: previous definition of 'param_set_dyndbg' with type 'int(const char *, const struct kernel_param *)' 629 | int param_set_dyndbg(const char *instr, const struct kernel_param *kp) | ^~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:659:1: note: in expansion of macro 'EXPORT_SYMBOL' 659 | EXPORT_SYMBOL(param_set_dyndbg); | ^~~~~~~~~~~~~ 673 | EXPORT_SYMBOL(param_get_dyndbg); | ^~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:673:1: note: in expansion of macro 'EXPORT_SYMBOL' 673 | EXPORT_SYMBOL(param_get_dyndbg); | ^~~~~~~~~~~~~ lib/dynamic_debug.c:668:5: note: previous definition of 'param_get_dyndbg' with type 'int(char *, const struct kernel_param *)' 668 | int param_get_dyndbg(char *buffer, const struct kernel_param *kp) | ^~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:673:1: note: in expansion of macro 'EXPORT_SYMBOL' 673 | EXPORT_SYMBOL(param_get_dyndbg); | ^~~~~~~~~~~~~ 680 | EXPORT_SYMBOL(param_ops_dyndbg); | ^~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:680:1: note: in expansion of macro 'EXPORT_SYMBOL' 680 | EXPORT_SYMBOL(param_ops_dyndbg); | ^~~~~~~~~~~~~ lib/dynamic_debug.c:675:31: note: previous definition of 'param_ops_dyndbg' with type 'const struct kernel_param_ops' 675 | const struct kernel_param_ops param_ops_dyndbg = { | ^~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:680:1: note: in expansion of macro 'EXPORT_SYMBOL' 680 | EXPORT_SYMBOL(param_ops_dyndbg); | ^~~~~~~~~~~~~ 684 | static int remaining(int wrote) | ^~~~~~~~~ 691 | static char *__dynamic_emit_prefix(const struct _ddebug *desc, char *buf) | ^~~~~~~~~~~~~~~~~~~~~ 721 | static inline char *dynamic_emit_prefix(struct _ddebug *desc, char *buf) | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 758 | EXPORT_SYMBOL(__dynamic_pr_debug); | ^~~~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:758:1: note: in expansion of macro 'EXPORT_SYMBOL' 758 | EXPORT_SYMBOL(__dynamic_pr_debug); | ^~~~~~~~~~~~~ lib/dynamic_debug.c:728:6: note: previous definition of '__dynamic_pr_debug' with type 'void(struct _ddebug *, const char *, ...)' 728 | void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...) | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:758:1: note: in expansion of macro 'EXPORT_SYMBOL' 758 | EXPORT_SYMBOL(__dynamic_pr_debug); | ^~~~~~~~~~~~~ 787 | EXPORT_SYMBOL(__dynamic_dev_dbg); | ^~~~~~~~~~~~~~~~~ include/linux/export.h:98:28: note: in definition of macro '___EXPORT_SYMBOL' 98 | extern typeof(sym) sym; \ | ^~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:787:1: note: in expansion of macro 'EXPORT_SYMBOL' 787 | EXPORT_SYMBOL(__dynamic_dev_dbg); | ^~~~~~~~~~~~~ lib/dynamic_debug.c:760:6: note: previous definition of '__dynamic_dev_dbg' with type 'void(struct _ddebug *, const struct device *, const char *, ...)' 760 | void __dynamic_dev_dbg(struct _ddebug *descriptor, | ^~~~~~~~~~~~~~~~~ In file included from include/linux/linkage.h:7, from include/linux/kernel.h:8, from lib/dynamic_debug.c:16: 67 | static const struct kernel_symbol __ksymtab_##sym \ | ^~~~~~ include/linux/export.h:108:9: note: in expansion of macro '__KSYMTAB_ENTRY' 108 | __KSYMTAB_ENTRY(sym, sec) | ^~~~~~~~~~~~~~~ include/linux/export.h:152:41: note: in expansion of macro '___EXPORT_SYMBOL' 152 | #define __EXPORT_SYMBOL(sym, sec, ns) ___EXPORT_SYMBOL(sym, sec, ns) | ^~~~~~~~~~~~~~~~ include/linux/export.h:160:41: note: in expansion of macro '__EXPORT_SYMBOL' 160 | #define _EXPORT_SYMBOL(sym, sec) __EXPORT_SYMBOL(sym, sec, "") | ^~~~~~~~~~~~~~~ include/linux/export.h:163:41: note: in expansion of macro '_EXPORT_SYMBOL' 163 | #define EXPORT_SYMBOL(sym) _EXPORT_SYMBOL(sym, "") | ^~~~~~~~~~~~~~ lib/dynamic_debug.c:787:1: note: in expansion of macro 'EXPORT_SYMBOL' 787 | EXPORT_SYMBOL(__dynamic_dev_dbg); | ^~~~~~~~~~~~~ 866 | static __init int ddebug_setup_query(char *str) | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/printk.h:6, from include/linux/kernel.h:19, from lib/dynamic_debug.c:16: 876 | __setup("ddebug_query=", ddebug_setup_query); | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:321:46: note: in definition of macro '__setup_param' 321 | = { __setup_str_##unique_id, fn, early } | ^~ lib/dynamic_debug.c:876:1: note: in expansion of macro '__setup' 876 | __setup("ddebug_query=", ddebug_setup_query); | ^~~~~~~ lib/dynamic_debug.c:876:26: note: (near initialization for '__setup_ddebug_setup_query.setup_func') 876 | __setup("ddebug_query=", ddebug_setup_query); | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:321:46: note: in definition of macro '__setup_param' 321 | = { __setup_str_##unique_id, fn, early } | ^~ lib/dynamic_debug.c:876:1: note: in expansion of macro '__setup' 876 | __setup("ddebug_query=", ddebug_setup_query); | ^~~~~~~ lib/dynamic_debug.c:883:16: error: invalid storage class for function 'ddebug_proc_write' 883 | static ssize_t ddebug_proc_write(struct file *file, const char __user *ubuf, | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:914:24: error: invalid storage class for function 'ddebug_iter_first' 914 | static struct _ddebug *ddebug_iter_first(struct ddebug_iter *iter) | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:933:24: error: invalid storage class for function 'ddebug_iter_next' 933 | static struct _ddebug *ddebug_iter_next(struct ddebug_iter *iter) | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:955:14: error: invalid storage class for function 'ddebug_proc_start' 955 | static void *ddebug_proc_start(struct seq_file *m, loff_t *pos) | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:978:14: error: invalid storage class for function 'ddebug_proc_next' 978 | static void *ddebug_proc_next(struct seq_file *m, void *p, loff_t *pos) | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:997:12: error: invalid storage class for function 'ddebug_proc_show' 997 | static int ddebug_proc_show(struct seq_file *m, void *p) | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1023:13: error: invalid storage class for function 'ddebug_proc_stop' 1023 | static void ddebug_proc_stop(struct seq_file *m, void *p) | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1029:18: error: initializer element is not constant 1029 | .start = ddebug_proc_start, | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1029:18: note: (near initialization for 'ddebug_proc_seqops.start') lib/dynamic_debug.c:1030:17: error: initializer element is not constant 1030 | .next = ddebug_proc_next, | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1030:17: note: (near initialization for 'ddebug_proc_seqops.next') lib/dynamic_debug.c:1031:17: error: initializer element is not constant 1031 | .show = ddebug_proc_show, | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1031:17: note: (near initialization for 'ddebug_proc_seqops.show') lib/dynamic_debug.c:1032:17: error: initializer element is not constant 1032 | .stop = ddebug_proc_stop | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1032:17: note: (near initialization for 'ddebug_proc_seqops.stop') lib/dynamic_debug.c:1035:12: error: invalid storage class for function 'ddebug_proc_open' 1035 | static int ddebug_proc_open(struct inode *inode, struct file *file) | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1043:17: error: initializer element is not constant 1043 | .open = ddebug_proc_open, | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1043:17: note: (near initialization for 'ddebug_proc_fops.open') lib/dynamic_debug.c:1047:18: error: initializer element is not constant 1047 | .write = ddebug_proc_write | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1047:18: note: (near initialization for 'ddebug_proc_fops.write') lib/dynamic_debug.c:1051:22: error: initializer element is not constant 1051 | .proc_open = ddebug_proc_open, | ^~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1051:22: note: (near initialization for 'proc_fops.proc_open') lib/dynamic_debug.c:1055:23: error: initializer element is not constant 1055 | .proc_write = ddebug_proc_write | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1055:23: note: (near initialization for 'proc_fops.proc_write') lib/dynamic_debug.c:1091:12: error: invalid storage class for function 'ddebug_dyndbg_param_cb' 1091 | static int ddebug_dyndbg_param_cb(char *param, char *val, | ^~~~~~~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1112:12: error: invalid storage class for function 'ddebug_dyndbg_boot_param_cb' 1112 | static int ddebug_dyndbg_boot_param_cb(char *param, char *val, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1130:13: error: invalid storage class for function 'ddebug_table_free' 1130 | static void ddebug_table_free(struct ddebug_table *dt) | ^~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1159:13: error: invalid storage class for function 'ddebug_remove_all_tables' 1159 | static void ddebug_remove_all_tables(void) | ^~~~~~~~~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1173:19: error: invalid storage class for function 'dynamic_debug_init_control' 1173 | static int __init dynamic_debug_init_control(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ lib/dynamic_debug.c:1196:19: error: invalid storage class for function 'dynamic_debug_init' 1196 | static int __init dynamic_debug_init(void) | ^~~~~~~~~~~~~~~~~~ In file included from include/linux/printk.h:6, from include/linux/kernel.h:19, from lib/dynamic_debug.c:16: lib/dynamic_debug.c:1267:16: error: initializer element is not constant 1267 | early_initcall(dynamic_debug_init); | ^~~~~~~~~~~~~~~~~~ include/linux/init.h:250:55: note: in definition of macro '____define_initcall' 250 | __attribute__((__section__(__sec))) = fn; | ^~ vim +593 lib/dynamic_debug.c 584 585 static int ddebug_exec_queries(const char *query_in, const char *modname, void *tracer) 586 { 587 int rc; 588 589 if (!query_in) { 590 pr_err("non-null query/command string expected\n"); 591 return -EINVAL; 592 } 594 if (!query) 595 return -ENOMEM; 596 597 rc = __ddebug_exec_queries(query, modname, tracer); 598 kfree(query); 599 return rc; 600 601 /** 602 * dynamic_debug_exec_queries - select and change dynamic-debug prints 603 * @query: query-string described in admin-guide/dynamic-debug-howto 604 * @modname: string containing module name, usually &module.mod_name 605 * 606 * This uses the >/proc/dynamic_debug/control reader, allowing module 607 * authors to modify their dynamic-debug callsites. The modname is 608 * canonically struct module.name, but can also be null or a 609 * module-wildcard, for example: "drm*". 610 */ 612 { 614 } 616 617 #ifdef MODULES 618 #define KP_MOD_NAME kp->mod->name 619 #else 620 #define KP_MOD_NAME NULL /* wildcard */ 621 #endif 622 #define FMT_QUERY_SIZE 128 /* typically need <40 */ 623 /** 624 * param_set_dyndbg() - drm.debug style bits=>categories setter 625 * @instr: string echo>d to sysfs 626 * @kp: struct kernel_param* ->data has bitmap 627 * Exported to support DEFINE_DYNAMIC_DEBUG_CATEGORIES 628 */ 629 int param_set_dyndbg(const char *instr, const struct kernel_param *kp) 630 { 631 unsigned long inbits; 632 int rc, i, matches = 0, totct = 0; 633 char query[FMT_QUERY_SIZE]; 634 const struct dyndbg_bitdesc *bitmap = kp->data; 635 636 if (!bitmap) { 637 pr_err("set_dyndbg: no bits=>queries map\n"); 638 return -EINVAL; 639 } 640 rc = kstrtoul(instr, 0, &inbits); 641 if (rc) { 642 pr_err("set_dyndbg: bad input: %s\n", instr); 643 return rc; 644 } 645 vpr_info("set_dyndbg: input 0x%lx\n", inbits); 646 647 for (i = 0; bitmap->prefix; i++, bitmap++) { 648 snprintf(query, FMT_QUERY_SIZE, "format '^%s' %cp", bitmap->prefix, 649 test_bit(i, &inbits) ? '+' : '-'); 650 651 matches = __ddebug_exec_queries(query, KP_MOD_NAME, NULL); 652 653 v2pr_info("bit-%d: %d matches on '%s'\n", i, matches, query); 654 totct += matches; 655 } 656 vpr_info("total matches: %d\n", totct); 657 return 0; 658 } 660 661 /** 662 * param_get_dyndbg() - drm.debug style bitmap to format-prefix categories 663 * @buffer: string returned to user via sysfs 664 * @kp: struct kernel_param* 665 * Exported to provide required .get interface, not useful. 666 * pr_debugs may be altered after .set via `echo $foo >control` 667 */ 668 int param_get_dyndbg(char *buffer, const struct kernel_param *kp) 669 { 670 return scnprintf(buffer, PAGE_SIZE, "%u\n", 671 *((unsigned int *)kp->arg)); 672 } 674 675 const struct kernel_param_ops param_ops_dyndbg = { 676 .set = param_set_dyndbg, 677 .get = param_get_dyndbg, 678 }; 679 /* support DEFINE_DYNAMIC_DEBUG_CATEGORIES users */ 681 682 #define PREFIX_SIZE 64 683 685 { 686 if (PREFIX_SIZE - wrote > 0) 687 return PREFIX_SIZE - wrote; 688 return 0; 689 } 690 692 { 693 int pos_after_tid; 694 int pos = 0; 695 696 if (desc->flags & _DPRINTK_FLAGS_INCL_TID) { 697 if (in_interrupt()) 698 pos += snprintf(buf + pos, remaining(pos), "<intr> "); 699 else 700 pos += snprintf(buf + pos, remaining(pos), "[%d] ", 701 task_pid_vnr(current)); 702 } 703 pos_after_tid = pos; 704 if (desc->flags & _DPRINTK_FLAGS_INCL_MODNAME) 705 pos += snprintf(buf + pos, remaining(pos), "%s:", 706 desc->modname); 707 if (desc->flags & _DPRINTK_FLAGS_INCL_FUNCNAME) 708 pos += snprintf(buf + pos, remaining(pos), "%s:", 709 desc->function); 710 if (desc->flags & _DPRINTK_FLAGS_INCL_LINENO) 711 pos += snprintf(buf + pos, remaining(pos), "%d:", 712 desc->lineno); 713 if (pos - pos_after_tid) 714 pos += snprintf(buf + pos, remaining(pos), " "); 715 if (pos >= PREFIX_SIZE) 716 buf[PREFIX_SIZE - 1] = '\0'; 717 718 return buf; 719 } 720 722 { 723 if (unlikely(desc->flags & _DPRINTK_FLAGS_INCL_ANY)) 724 return __dynamic_emit_prefix(desc, buf); 725 return buf; 726 } 727 728 void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...) 729 { 730 va_list args; 731 struct va_format vaf; 732 char buf[PREFIX_SIZE] = ""; 733 734 BUG_ON(!descriptor); 735 BUG_ON(!fmt); 736 737 va_start(args, fmt); 738 739 vaf.fmt = fmt; 740 vaf.va = &args; 741 742 if (descriptor->flags & _DPRINTK_ENABLED) 743 dynamic_emit_prefix(descriptor, buf); 744 745 if (descriptor->flags & _DPRINTK_FLAGS_PRINT) 746 printk(KERN_DEBUG "%s%pV", buf, &vaf); 747 748 if (descriptor->flags & _DPRINTK_FLAGS_PRINT_TRACE) { 749 750 if (descriptor->tracer) { 751 (*descriptor->tracer)("%s:%ps %pV", buf, 752 __builtin_return_address(0), &vaf); 753 } 754 /* else shouldn't matter, but maybe for consistency */ 755 } 756 va_end(args); 757 } 759 760 void __dynamic_dev_dbg(struct _ddebug *descriptor, 761 const struct device *dev, const char *fmt, ...) 762 { 763 struct va_format vaf; 764 va_list args; 765 766 BUG_ON(!descriptor); 767 BUG_ON(!fmt); 768 769 va_start(args, fmt); 770 771 vaf.fmt = fmt; 772 vaf.va = &args; 773 774 if (!dev) { 775 printk(KERN_DEBUG "(NULL device *): %pV", &vaf); 776 } else { 777 char buf[PREFIX_SIZE] = ""; 778 779 dev_printk_emit(LOGLEVEL_DEBUG, dev, "%s%s %s: %pV", 780 dynamic_emit_prefix(descriptor, buf), 781 dev_driver_string(dev), dev_name(dev), 782 &vaf); 783 } 784 785 va_end(args); 786 } 788 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org