This is a note to let you know that I've just added the patch titled
sfc: ef10: fix TX queue lookup in TX event handling
to the 5.10-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:
sfc-ef10-fix-tx-queue-lookup-in-tx-event-handling.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1029cd2822090a2ab8b287c9d79bf1dc6d2085a4
Author: Edward Cree <ecree.xilinx@xxxxxxxxx>
Date: Tue Apr 20 13:29:35 2021 +0100
sfc: ef10: fix TX queue lookup in TX event handling
[ Upstream commit 172e269edfce34bac7c61c15551816bda4b0f140 ]
We're starting from a TXQ label, not a TXQ type, so
efx_channel_get_tx_queue() is inappropriate. This worked by chance,
because labels and types currently match on EF10, but we shouldn't
rely on that.
Fixes: 12804793b17c ("sfc: decouple TXQ type from label")
Signed-off-by: Edward Cree <ecree.xilinx@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index da6886dcac37..4fa72b573c17 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2928,8 +2928,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
/* Get the transmit queue */
tx_ev_q_label = EFX_QWORD_FIELD(*event, ESF_DZ_TX_QLABEL);
- tx_queue = efx_channel_get_tx_queue(channel,
- tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
+ tx_queue = channel->tx_queue + (tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL);
if (!tx_queue->timestamping) {
/* Transmit completion */
