Commit 9f1c3ad6 authored by Alex Elder's avatar Alex Elder Committed by Jakub Kicinski
Browse files

net: ipa: call gsi_evt_ring_rx_update() unconditionally 



When an RX transaction completes, we update the trans->len field to
contain the actual number of bytes received.  This is done in a loop
in gsi_evt_ring_rx_update().

Change that function so it checks the data transfer direction
recorded in the transaction, and only updates trans->len for RX
transfers.

Then call it unconditionally.  This means events for TX endpoints
will run through the loop without otherwise doing anything, but
this will change shortly.

Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 2f48fb0e

drivers/net/ipa/gsi.c

+3 −3
Original line number Diff line number Diff line
@@ -1392,6 +1392,7 @@ static void gsi_evt_ring_rx_update(struct gsi *gsi, u32 evt_ring_id, u32 index) 
		if (!trans)

			return;



		if (trans->direction == DMA_FROM_DEVICE)

			trans->len = __le16_to_cpu(event->len);



		/* Move on to the next event and transaction */
@@ -1500,7 +1501,6 @@ static struct gsi_trans *gsi_channel_update(struct gsi_channel *channel) 
	 */

	if (channel->toward_ipa)

		gsi_trans_tx_completed(trans);

	else

	gsi_evt_ring_rx_update(gsi, evt_ring_id, index);



	gsi_trans_move_complete(trans);