FD_SETSIZE 184 tools/include/nolibc/nolibc.h typedef struct { uint32_t fd32[FD_SETSIZE/32]; } fd_set; FD_SETSIZE 2447 tools/include/nolibc/nolibc.h if (fd < 0 || fd >= FD_SETSIZE) FD_SETSIZE 1262 tools/testing/selftests/net/nettest.c rc = select(FD_SETSIZE, NULL, &wfd, NULL, tv);