[PATCH v2 2/3] xen/netback: remove not needed test in xenvif_tx_build_gops()

[Juergen Gross]

The tests for the number of grant mapping or copy operations reaching
the array size of the operations buffer at the end of the main loop in
xenvif_tx_build_gops() isn't needed.

The loop can handle at maximum MAX_PENDING_REQS transfer requests, as
XEN_RING_NR_UNCONSUMED_REQUESTS() is taking unsent responses into
consideration, too.

Remove the tests.

Suggested-by: Jan Beulich <jbeulich@xxxxxxxx>
Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
Reviewed-by: Paul Durrant <paul@xxxxxxx>
---
 drivers/net/xen-netback/netback.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 54c76af90233..9ca4b69d3b39 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1084,10 +1084,6 @@ static void xenvif_tx_build_gops(struct xenvif_queue *queue,
 		__skb_queue_tail(&queue->tx_queue, skb);
 
 		queue->tx.req_cons = idx;
-
-		if ((*map_ops >= ARRAY_SIZE(queue->tx_map_ops)) ||
-		    (*copy_ops >= ARRAY_SIZE(queue->tx_copy_ops)))
-			break;
 	}
 
 	return;
-- 
2.35.3