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net: ipa: call gsi_evt_ring_rx_update() unconditionally

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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: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Alex Elder 2022-06-15 11:59:28 -05:00 committed by Jakub Kicinski
parent 2f48fb0edc
commit 9f1c3ad654
1 changed files with 3 additions and 3 deletions
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6
drivers/net/ipa/gsi.c
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@ -1392,7 +1392,8 @@ static void gsi_evt_ring_rx_update(struct gsi *gsi, u32 evt_ring_id, u32 index)
if (!trans)
return;
trans->len = __le16_to_cpu(event->len);
if (trans->direction == DMA_FROM_DEVICE)
trans->len = __le16_to_cpu(event->len);
/* Move on to the next event and transaction */
if (--event_avail)
@ -1500,8 +1501,7 @@ 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_evt_ring_rx_update(gsi, evt_ring_id, index);
gsi_trans_move_complete(trans);