305 static void __init match_isa_ext(const struct riscv_isa_ext_data *ext, const char *name,  in match_isa_ext()  argument
308 	if ((name_end - name == strlen(ext->name)) &&  in match_isa_ext()
309 	     !strncasecmp(name, ext->name, name_end - name)) {  in match_isa_ext()
314 		if (ext->subset_ext_size) {  in match_isa_ext()
315 			for (int i = 0; i < ext->subset_ext_size; i++) {  in match_isa_ext()
316 				if (riscv_isa_extension_check(ext->subset_ext_ids[i]))  in match_isa_ext()
317 					set_bit(ext->subset_ext_ids[i], isainfo->isa);  in match_isa_ext()
325 		if (riscv_isa_extension_check(ext->id))  in match_isa_ext()
326 			set_bit(ext->id, isainfo->isa);  in match_isa_ext()
342 		const char *ext = isa++;  in riscv_parse_isa_string()  local
346 		switch (*ext) {  in riscv_parse_isa_string()
354 			if (ext[-1] != '_' && ext[1] == 'u') {  in riscv_parse_isa_string()
427 			if (unlikely(!isalpha(*ext))) {  in riscv_parse_isa_string()
464 			int nr = tolower(*ext) - 'a';  in riscv_parse_isa_string()
472 				match_isa_ext(&riscv_isa_ext[i], ext, ext_end, isainfo);  in riscv_parse_isa_string()
586 			const struct riscv_isa_ext_data *ext = &riscv_isa_ext[i];  in riscv_fill_hwcap_from_ext_list()  local
589 						     ext->property) < 0)  in riscv_fill_hwcap_from_ext_list()
592 			if (ext->subset_ext_size) {  in riscv_fill_hwcap_from_ext_list()
593 				for (int j = 0; j < ext->subset_ext_size; j++) {  in riscv_fill_hwcap_from_ext_list()
594 					if (riscv_isa_extension_check(ext->subset_ext_ids[i]))  in riscv_fill_hwcap_from_ext_list()
595 						set_bit(ext->subset_ext_ids[j], isainfo->isa);  in riscv_fill_hwcap_from_ext_list()
599 			if (riscv_isa_extension_check(ext->id)) {  in riscv_fill_hwcap_from_ext_list()
600 				set_bit(ext->id, isainfo->isa);  in riscv_fill_hwcap_from_ext_list()