122 static void vpr_info_dq(const struct ddebug_query *query, const char *msg)  in vpr_info_dq()  argument
127 	if (query->format) {  in vpr_info_dq()
128 		fmtlen = strlen(query->format);  in vpr_info_dq()
129 		while (fmtlen && query->format[fmtlen - 1] == '\n')  in vpr_info_dq()
135 		 query->function ?: "",  in vpr_info_dq()
136 		 query->filename ?: "",  in vpr_info_dq()
137 		 query->module ?: "",  in vpr_info_dq()
138 		 fmtlen, query->format ?: "",  in vpr_info_dq()
139 		 query->first_lineno, query->last_lineno);  in vpr_info_dq()
143  * Search the tables for _ddebug's which match the given `query' and
148 static int ddebug_change(const struct ddebug_query *query,  in ddebug_change()  argument
162 		if (query->module &&  in ddebug_change()
163 		    !match_wildcard(query->module, dt->mod_name))  in ddebug_change()
170 			if (query->filename &&  in ddebug_change()
171 			    !match_wildcard(query->filename, dp->filename) &&  in ddebug_change()
172 			    !match_wildcard(query->filename,  in ddebug_change()
174 			    !match_wildcard(query->filename,  in ddebug_change()
179 			if (query->function &&  in ddebug_change()
180 			    !match_wildcard(query->function, dp->function))  in ddebug_change()
184 			if (query->format) {  in ddebug_change()
185 				if (*query->format == '^') {  in ddebug_change()
188 					p = strstr(dp->format, query->format+1);  in ddebug_change()
191 				} else if (!strstr(dp->format, query->format))  in ddebug_change()
196 			if (query->first_lineno &&  in ddebug_change()
197 			    dp->lineno < query->first_lineno)  in ddebug_change()
199 			if (query->last_lineno &&  in ddebug_change()
200 			    dp->lineno > query->last_lineno)  in ddebug_change()
225 		pr_info("no matches for query\n");  in ddebug_change()
306 static int parse_linerange(struct ddebug_query *query, const char *first)  in parse_linerange()  argument
310 	if (query->first_lineno || query->last_lineno) {  in parse_linerange()
316 	if (parse_lineno(first, &query->first_lineno) < 0)  in parse_linerange()
320 		if (parse_lineno(last, &query->last_lineno) < 0)  in parse_linerange()
324 		if (query->last_lineno == 0)  in parse_linerange()
325 			query->last_lineno = UINT_MAX;  in parse_linerange()
327 		if (query->last_lineno < query->first_lineno) {  in parse_linerange()
329 			       query->last_lineno,  in parse_linerange()
330 			       query->first_lineno);  in parse_linerange()
334 		query->last_lineno = query->first_lineno;  in parse_linerange()
336 	vpr_info("parsed line %d-%d\n", query->first_lineno,  in parse_linerange()
337 		 query->last_lineno);  in parse_linerange()
355  * Parse words[] as a ddebug query specification, which is a series
370 			struct ddebug_query *query, const char *modname)  in ddebug_parse_query()  argument
384 		query->module = modname;  in ddebug_parse_query()
391 			rc = check_set(&query->function, arg, "func");  in ddebug_parse_query()
393 			if (check_set(&query->filename, arg, "file"))  in ddebug_parse_query()
397 			fline = strchr(query->filename, ':');  in ddebug_parse_query()
403 				if (check_set(&query->function, fline, "func"))  in ddebug_parse_query()
406 				if (parse_linerange(query, fline))  in ddebug_parse_query()
410 			rc = check_set(&query->module, arg, "module");  in ddebug_parse_query()
415 			rc = check_set(&query->format, arg, "format");  in ddebug_parse_query()
417 			if (parse_linerange(query, arg))  in ddebug_parse_query()
426 	vpr_info_dq(query, "parsed");  in ddebug_parse_query()
488 	struct ddebug_query query = {};  in ddebug_exec_query()  local
498 	/* check flags 1st (last arg) so query is pairs of spec,val */  in ddebug_exec_query()
503 	if (ddebug_parse_query(words, nwords-1, &query, modname)) {  in ddebug_exec_query()
504 		pr_err("query parse failed\n");  in ddebug_exec_query()
508 	nfound = ddebug_change(&query, &modifiers);  in ddebug_exec_query()
509 	vpr_info_dq(&query, nfound ? "applied" : "no-match");  in ddebug_exec_query()
514 /* handle multiple queries in query string, continue on error, return
516    in param (for boot arg) or perhaps in query string.
518 static int ddebug_exec_queries(char *query, const char *modname)  in ddebug_exec_queries()  argument
523 	for (i = 0; query; query = split) {  in ddebug_exec_queries()
524 		split = strpbrk(query, ";\n");  in ddebug_exec_queries()
528 		query = skip_spaces(query);  in ddebug_exec_queries()
529 		if (!query || !*query || *query == '#')  in ddebug_exec_queries()
532 		vpr_info("query %d: \"%s\"\n", i, query);  in ddebug_exec_queries()
534 		rc = ddebug_exec_query(query, modname);  in ddebug_exec_queries()
553  * @query: query-string described in admin-guide/dynamic-debug-howto
561 int dynamic_debug_exec_queries(const char *query, const char *modname)  in dynamic_debug_exec_queries()  argument
564 	char *qry = kstrndup(query, PAGE_SIZE, GFP_KERNEL);  in dynamic_debug_exec_queries()
566 	if (!query)  in dynamic_debug_exec_queries()
985 	return 0; /* query failure shouldnt stop module load */  in ddebug_dyndbg_param_cb()