[dpdk-stable] patch 'net/af_xdp: fix redundant check for wakeup need' has been queued to stable release 19.11.1

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 19.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/13/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Thanks.

Luca Boccassi

---
>From a0be896b85d0150b859e94e9f23a1b7c33a74b1a Mon Sep 17 00:00:00 2001
From: Xiao Wang <xiao.w.wang at intel.com>
Date: Mon, 6 Jan 2020 09:09:40 -0500
Subject: [PATCH] net/af_xdp: fix redundant check for wakeup need

[ upstream commit fdf69a8179245b01de3a736938166331487f4257 ]

Function kick_tx() has built-in detection on NEED_WAKEUP flag, so just
call it directly, like elsewhere in the driver.

Fixes: d8a210774e1d ("net/af_xdp: support unaligned umem chunks")

Signed-off-by: Xiao Wang <xiao.w.wang at intel.com>
Tested-by: Ciara Loftus <ciara.loftus at intel.com>
---
 drivers/net/af_xdp/rte_eth_af_xdp.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/af_xdp/rte_eth_af_xdp.c b/drivers/net/af_xdp/rte_eth_af_xdp.c
index 2b1245ee4f..d903e6c28a 100644
--- a/drivers/net/af_xdp/rte_eth_af_xdp.c
+++ b/drivers/net/af_xdp/rte_eth_af_xdp.c
@@ -480,10 +480,7 @@ af_xdp_tx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
 		tx_bytes += mbuf->pkt_len;
 	}
 
-#if defined(XDP_USE_NEED_WAKEUP)
-	if (xsk_ring_prod__needs_wakeup(&txq->tx))
-#endif
-		kick_tx(txq);
+	kick_tx(txq);
 
 out:
 	xsk_ring_prod__submit(&txq->tx, count);
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-11 11:17:41.172328033 +0000
+++ 0061-net-af_xdp-fix-redundant-check-for-wakeup-need.patch	2020-02-11 11:17:38.452002319 +0000
@@ -1,13 +1,14 @@
-From fdf69a8179245b01de3a736938166331487f4257 Mon Sep 17 00:00:00 2001
+From a0be896b85d0150b859e94e9f23a1b7c33a74b1a Mon Sep 17 00:00:00 2001
 From: Xiao Wang <xiao.w.wang at intel.com>
 Date: Mon, 6 Jan 2020 09:09:40 -0500
 Subject: [PATCH] net/af_xdp: fix redundant check for wakeup need
 
+[ upstream commit fdf69a8179245b01de3a736938166331487f4257 ]
+
 Function kick_tx() has built-in detection on NEED_WAKEUP flag, so just
 call it directly, like elsewhere in the driver.
 
 Fixes: d8a210774e1d ("net/af_xdp: support unaligned umem chunks")
-Cc: stable at dpdk.org
 
 Signed-off-by: Xiao Wang <xiao.w.wang at intel.com>
 Tested-by: Ciara Loftus <ciara.loftus at intel.com>