Re: [PATCH net 0/2] rxrpc: RACK-TLP fixes

From: Paolo Abeni

Date: Thu Oct 01 2026 - 05:29:05 EST


On 9/25/26 21:15, David Howells wrote:
Here are some fixes for AF_RXRPC's RACK-TLP implementation. It's split
into two patches: the first just fixes the RFC number in comments but has
no actual code changes; the second does the actual fixing, including:

- Making the in/exiting fast/RTO recovery flags available to RACK-TLP code
after the Reorder timer expires.

- Arming the RTO timer if no other timer is running and there is unacked
data.

- Initialising the TLP state in the correct place.

- Not resetting the xmit timestamp when marking a packet lost.

- Correctly checking the flight size.

- Correctly tracking the number of packets in the Tx window that have been
re-sent and thus correctly estimating the flight size.
I'm not sure if the sashiko feedback is worth addressing, or could be a
follow-up. Also Linus is pushing back quite a bit on fixes this late in the
cycle; we are trying to defer things to 'next', where appropriate.

I think patch 1/2 will not pass Linus' filter, and possibly even patch 2/2

WDYT about targeting net-next here?

If sashiko is deferrable, no need to repost.

/P