On 11/14/25 8:13 AM, chia-yu.chang@nokia-bell-labs.com wrote:

From: Chia-Yu Chang <redacted>

Before this patch, retransmitted SYN/ACK did not have a specific synack_type;
however, the upcoming patch needs to distinguish between retransmitted and
non-retransmitted SYN/ACK for AccECN negotiation to transmit the fallback
SYN/ACK during AccECN negotiation. Therefore, this patch introduces a new
synack_type (TCP_SYNACK_RETRANS).

Signed-off-by: Chia-Yu Chang <redacted>

Acked-by: Paolo Abeni <pabeni@redhat.com>