Patch "rxrpc: Fix rack timer warning to report unexpected mode" has been added to the 6.19-stable tree

[gregkh at linuxfoundation.org]

This is a note to let you know that I've just added the patch titled

    rxrpc: Fix rack timer warning to report unexpected mode

to the 6.19-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     rxrpc-fix-rack-timer-warning-to-report-unexpected-mode.patch
and it can be found in the queue-6.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable at vger.kernel.org> know about it.


>From 65b3ffe0972ed023acc3981a0f7e1ae5d0208bd3 Mon Sep 17 00:00:00 2001
From: Alok Tiwari <alok.a.tiwari at oracle.com>
Date: Wed, 8 Apr 2026 13:12:35 +0100
Subject: rxrpc: Fix rack timer warning to report unexpected mode

From: Alok Tiwari <alok.a.tiwari at oracle.com>

commit 65b3ffe0972ed023acc3981a0f7e1ae5d0208bd3 upstream.

rxrpc_rack_timer_expired() clears call->rack_timer_mode to OFF before
the switch. The default case warning therefore always prints OFF and
doesn't identify the unexpected timer mode.

Log the saved mode value instead so the warning reports the actual
unexpected rack timer mode.

Fixes: 7c482665931b ("rxrpc: Implement RACK/TLP to deal with transmission stalls [RFC8985]")
Signed-off-by: Alok Tiwari <alok.a.tiwari at oracle.com>
Signed-off-by: David Howells <dhowells at redhat.com>
Reviewed-by: Simon Horman <horms at kernel.org>
Reviewed-by: Jeffrey Altman <jaltman at auristor.com>
cc: Marc Dionne <marc.dionne at auristor.com>
cc: linux-afs at lists.infradead.org
cc: stable at kernel.org
Link: https://patch.msgid.link/20260408121252.2249051-8-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba at kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 net/rxrpc/input_rack.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/rxrpc/input_rack.c
+++ b/net/rxrpc/input_rack.c
@@ -413,6 +413,6 @@ void rxrpc_rack_timer_expired(struct rxr
 		break;
 	//case RXRPC_CALL_RACKTIMER_ZEROWIN:
 	default:
-		pr_warn("Unexpected rack timer %u", call->rack_timer_mode);
+		pr_warn("Unexpected rack timer %u", mode);
 	}
 }


Patches currently in stable-queue which might be from alok.a.tiwari at oracle.com are

queue-6.19/rxrpc-fix-use-of-wrong-skb-when-comparing-queued-resp-challenge-serial.patch
queue-6.19/rxrpc-fix-rack-timer-warning-to-report-unexpected-mode.patch