[dpdk-stable] patch 'examples/l3fwd: fix NEON instructions' has been queued to stable release 17.08.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 17.08.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/24/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 70332c6240a284fc2f246421daff01a33fea4c91 Mon Sep 17 00:00:00 2001
From: Guduri Prathyusha <gprathyusha at caviumnetworks.com>
Date: Mon, 30 Oct 2017 13:01:26 +0530
Subject: [PATCH] examples/l3fwd: fix NEON instructions

[ upstream commit 3a4475e51d13ec3328b291061c38b7c5643a86ee ]

To group consecutive packets with same destination port in bursts of 4
neon intrinsic data types dp1 and dp2 are calculated such that if
dst_port[]={a,b,c,d,e,f,g,h,i...} dp1 should contain: <a,b,c,d> and
dp2 should contain: <b,c,d,e> in the first iteration. dp1 should
be <e,f,g,h> and dp2 should be <f,g,h,i> in the next iteration.

Whereas the existing code incorrectly calculates dp1 as <d,e,f,g> from
second iteration.

This patch fixes the incorrect ARM NEON instructions on dp1.

Fixes: 569b290cdb36 ("examples/l3fwd: add NEON implementation")

Signed-off-by: Guduri Prathyusha <gprathyusha at caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu at arm.com>
Acked-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
---
 examples/l3fwd/l3fwd_neon.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/l3fwd/l3fwd_neon.h b/examples/l3fwd/l3fwd_neon.h
index 42d50d3..4bc1613 100644
--- a/examples/l3fwd/l3fwd_neon.h
+++ b/examples/l3fwd/l3fwd_neon.h
@@ -192,7 +192,7 @@ send_packets_multi(struct lcore_conf *qconf, struct rte_mbuf **pkts_burst,
 			 * dp1:
 			 * <d[j], d[j+1], d[j+2], d[j+3], ... >
 			 */
-			dp1 = vextq_u16(dp1, dp1, FWDSTEP - 1);
+			dp1 = vextq_u16(dp2, dp1, FWDSTEP - 1);
 		}
 
 		/*
-- 
2.7.4