239 static const char *bitmap_getnum(const char *str, unsigned int *num,  in bitmap_getnum()  argument
245 	if (str[0] == 'N') {  in bitmap_getnum()
247 		return str + 1;  in bitmap_getnum()
250 	len = _parse_integer(str, 10, &n);  in bitmap_getnum()
257 	return str + len;  in bitmap_getnum()
279 static const char *bitmap_find_region(const char *str)  in bitmap_find_region()  argument
281 	while (__end_of_region(*str))  in bitmap_find_region()
282 		str++;  in bitmap_find_region()
284 	return end_of_str(*str) ? NULL : str;  in bitmap_find_region()
295 static const char *bitmap_parse_region(const char *str, struct region *r)  in bitmap_parse_region()  argument
299 	if (!strncasecmp(str, "all", 3)) {  in bitmap_parse_region()
302 		str += 3;  in bitmap_parse_region()
307 	str = bitmap_getnum(str, &r->start, lastbit);  in bitmap_parse_region()
308 	if (IS_ERR(str))  in bitmap_parse_region()
309 		return str;  in bitmap_parse_region()
311 	if (end_of_region(*str))  in bitmap_parse_region()
314 	if (*str != '-')  in bitmap_parse_region()
317 	str = bitmap_getnum(str + 1, &r->end, lastbit);  in bitmap_parse_region()
318 	if (IS_ERR(str))  in bitmap_parse_region()
319 		return str;  in bitmap_parse_region()
322 	if (end_of_region(*str))  in bitmap_parse_region()
325 	if (*str != ':')  in bitmap_parse_region()
328 	str = bitmap_getnum(str + 1, &r->off, lastbit);  in bitmap_parse_region()
329 	if (IS_ERR(str))  in bitmap_parse_region()
330 		return str;  in bitmap_parse_region()
332 	if (*str != '/')  in bitmap_parse_region()
335 	return bitmap_getnum(str + 1, &r->group_len, lastbit);  in bitmap_parse_region()
343 	return end_of_str(*str) ? NULL : str;  in bitmap_parse_region()