[PATCH 6.18 68/83] rxrpc: Fix rack timer warning to report unexpected mode

Greg Kroah-Hartman
2026-04-13T16:09:46Z

From: Alok Tiwari <alok.a.tiwari@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@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Jeffrey Altman <jaltman@auristor.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: stable@kernel.org
Link: https://patch.msgid.link/20260408121252.2249051-8-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@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);
}
}