SIOCGIFMEM 544 fs/compat_ioctl.c case SIOCGIFMEM: SIOCGIFMEM 2546 fs/compat_ioctl.c HANDLE_IOCTL(SIOCGIFMEM, dev_ifsioc) SIOCGIFMEM 3821 net/core/dev.c case SIOCGIFMEM: