794 	u32 nr_groups = evlist->nr_groups;  in write_group_desc()  local
798 	ret = do_write(fd, &nr_groups, sizeof(nr_groups));  in write_group_desc()
1805 	u32 i, nr, nr_groups;  in process_group_desc()  local
1814 	if (readn(fd, &nr_groups, sizeof(nr_groups)) != sizeof(nr_groups))  in process_group_desc()
1818 		nr_groups = bswap_32(nr_groups);  in process_group_desc()
1820 	ph->env.nr_groups = nr_groups;  in process_group_desc()
1821 	if (!nr_groups) {  in process_group_desc()
1826 	desc = calloc(nr_groups, sizeof(*desc));  in process_group_desc()
1830 	for (i = 0; i < nr_groups; i++) {  in process_group_desc()
1851 	session->evlist->nr_groups = nr_groups;  in process_group_desc()
1864 			if (i >= nr_groups || nr > 0) {  in process_group_desc()
1880 	if (i != nr_groups || nr != 0) {  in process_group_desc()
1887 	for (i = 0; i < nr_groups; i++)  in process_group_desc()