kernel/trace/trace_events_hist.c

1104 					 const char *var_name)
1112 		    strcmp(hist_field->var.name, var_name) == 0) {
1123 				   const char *var_name)
1131 	hist_field = find_var_field(hist_data, var_name);
1138 			hist_field = find_var_field(test_data, var_name);
1150 					      char *var_name)
1165 		if (find_var_field(var_hist_data, var_name)) {
1167 				hist_err(tr, HIST_ERR_VAR_NOT_UNIQUE, errpos(var_name));
1179 					const char *var_name)
1190 			hist_field = find_var_field(test_data, var_name);
1200 find_match_var(struct hist_trigger_data *hist_data, char *var_name)
1214 			file = find_var_file(tr, system, event_name, var_name);
1217 			hist_field = find_file_var(file, var_name);
1221 						 errpos(var_name));
1235 					 char *var_name)
1242 		hist_field = find_match_var(hist_data, var_name);
1249 	file = find_var_file(tr, system, event_name, var_name);
1253 	hist_field = find_file_var(file, var_name);
1942 					    char *var_name)
2061 	if (var_name) {
2062 		hist_field->var.name = kstrdup(var_name, GFP_KERNEL);
2215 static bool is_var_ref(char *var_name)
2217 	if (!var_name || strlen(var_name) < 2 || var_name[0] != '$')
2224 				 char *var_name)
2232 		if (strcmp(var_name, name) == 0) {
2245 				 char *var_name)
2262 	if (!is_var_ref(var_name))
2265 	var_name++;
2267 	return field_name_from_var(hist_data, var_name);
2272 					char *var_name)
2277 	if (!is_var_ref(var_name))
2280 	var_name++;
2282 	var_field = find_event_var(hist_data, system, event_name, var_name);
2288 		hist_err(tr, HIST_ERR_VAR_NOT_FOUND, errpos(var_name));
2399 				       char *var_name)
2404 	alias = create_hist_field(hist_data, NULL, flags, var_name);
2422 				      char *str, char *var_name,
2435 	field = create_hist_field(hist_data, NULL, *flags, var_name);
2446 				     unsigned long *flags, char *var_name)
2455 		hist_field = parse_const(hist_data, str, var_name, flags);
2486 			if (var_name) {
2487 				hist_field = create_alias(hist_data, hist_field, var_name);
2504 	hist_field = create_hist_field(hist_data, field, *flags, var_name);
2519 				     char *var_name, unsigned int *n_subexprs);
2524 				      char *var_name, unsigned int *n_subexprs)
2569 	expr = create_hist_field(hist_data, NULL, flags, var_name);
2656 				     char *var_name, unsigned int *n_subexprs)
2674 		return parse_atom(hist_data, file, str, &flags, var_name);
2677 		return parse_unary(hist_data, file, str, flags, var_name, n_subexprs);
2756 	expr = create_hist_field(hist_data, NULL, flags, var_name);
3092 		      char *subsys_name, char *event_name, char *var_name)
3112 	hist_field = find_var_field(hist_data, var_name);
3281  * @var_name: The name of the field (and the resulting variable)
3288  * This function creates a field variable with the name var_name on
3298 			char *subsys_name, char *event_name, char *var_name)
3317 	return create_field_var(target_hist_data, file, var_name);
4226 			      char *var_name, char *field_str,
4232 	hist_field = parse_expr(hist_data, file, field_str, flags, var_name, &n_subexprs);
4399 			    char *var_name, char *expr_str)
4408 	if (find_var(hist_data, file, var_name) && !hist_data->remove) {
4409 		hist_err(tr, HIST_ERR_DUPLICATE_VAR, errpos(var_name));
4418 	ret = __create_val_field(hist_data, val_idx, file, var_name, expr_str, flags);
4575 		char *var_name = hist_data->attrs->var_defs.name[i];
4578 		ret = create_var_field(hist_data, j++, file, var_name, expr);
4601 	char *s, *str, *var_name, *field_str;
4612 			var_name = strsep(&field_str, "=");
4613 			if (!var_name || !field_str) {
4615 					 errpos(var_name));
4621 				hist_err(tr, HIST_ERR_TOO_MANY_VARS, errpos(var_name));
4626 			s = kstrdup(var_name, GFP_KERNEL);