diff options
Diffstat (limited to 'include/net/red.h')
| -rw-r--r-- | include/net/red.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/red.h b/include/net/red.h index 6a2aaa6c7c41..fc455445f4b2 100644 --- a/include/net/red.h +++ b/include/net/red.h @@ -209,6 +209,11 @@ static inline int red_get_flags(unsigned char qopt_flags, static inline int red_validate_flags(unsigned char flags, struct netlink_ext_ack *extack) { + if ((flags & TC_RED_NODROP) && !(flags & TC_RED_ECN)) { + NL_SET_ERR_MSG_MOD(extack, "nodrop mode is only meaningful with ECN"); + return -EINVAL; + } + return 0; } |