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* [dpdk-stable] patch 'examples/vhost: fix uninitialized descriptor indexes' has been queued to stable release 17.05.1
@ 2017-06-20 11:35 Yuanhan Liu
  2017-06-20 11:35 ` [dpdk-stable] patch 'kni: fix build on RHEL 7.4' " Yuanhan Liu
                   ` (36 more replies)
  0 siblings, 37 replies; 40+ messages in thread
From: Yuanhan Liu @ 2017-06-20 11:35 UTC (permalink / raw)
  To: Jerin Jacob; +Cc: Maxime Coquelin, dpdk stable

Hi,

FYI, your patch has been queued to stable release 17.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/22/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From 8dccb2094bb42b56d42df0071f848b32c500321d Mon Sep 17 00:00:00 2001
From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Date: Fri, 2 Jun 2017 16:50:31 +0530
Subject: [PATCH] examples/vhost: fix uninitialized descriptor indexes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit 62a0e941b5000fec02dc3bd3efed092b809ce570 ]

Fixing the below error by returning from the function early
when count == 0.

Issue flagged by GCC 7.1.1

examples/vhost/virtio_net.c:370:38: error: ‘desc_indexes[0]’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
  rte_prefetch0(&vr->desc[desc_indexes[0]]);

Fixes: ca059fa5e290 ("examples/vhost: demonstrate the new generic APIs")

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 examples/vhost/virtio_net.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/examples/vhost/virtio_net.c b/examples/vhost/virtio_net.c
index cc2c3d8..5e1ed44 100644
--- a/examples/vhost/virtio_net.c
+++ b/examples/vhost/virtio_net.c
@@ -350,6 +350,9 @@ vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id,
 	count = RTE_MIN(count, MAX_PKT_BURST);
 	count = RTE_MIN(count, free_entries);
 
+	if (unlikely(count == 0))
+		return 0;
+
 	/*
 	 * Retrieve all of the head indexes first and pre-update used entries
 	 * to avoid caching issues.
@@ -385,8 +388,6 @@ vs_dequeue_pkts(struct vhost_dev *dev, uint16_t queue_id,
 		}
 
 	}
-	if (!i)
-		return 0;
 
 	queue->last_avail_idx += i;
 	queue->last_used_idx += i;
-- 
2.7.4

^ permalink raw reply	[flat|nested] 40+ messages in thread

end of thread, other threads:[~2017-06-22  2:19 UTC | newest]

Thread overview: 40+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-06-20 11:35 [dpdk-stable] patch 'examples/vhost: fix uninitialized descriptor indexes' has been queued to stable release 17.05.1 Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'kni: fix build on RHEL 7.4' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'drivers/net: fix vfio kmod dependency' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'vfio: fix array bounds check' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'app/testpmd: fix creating E-Tag and NVGRE flow rules' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ark: fix buffer not null terminated' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ark: fix return code not checked' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ark: fix null pointer dereference' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ark: fix return value of null not checked' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/i40e/base: fix Tx error stats on VF' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/af_packet: handle possible null pointer' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/af_packet: fix packet bytes counting' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/mlx5: fix completion buffer size' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/igb: fix add/delete of flex filters' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/tap: fix some flow collision' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/cxgbe: fix port statistics' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/cxgbe: fix rxq default params for ports under same PF' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/sfc/base: fix error code usage in common code' " Yuanhan Liu
2017-06-20 16:26   ` Andrew Rybchenko
2017-06-22  2:19     ` Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/sfc: add Tx queue flush failed flag for sanity' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/mlx5: fix flow application order on stop/start' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ring: fix adding MAC addresses' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/mlx5: fix exception handling' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/mlx5: fix redundant free of Tx buffer' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/igb: fix checksum valid flags' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/ixgbe: fix fdir mask not be reset' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/i40e: exclude internal packet's byte count' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/i40e: fix VF statistics' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/qede: fix VXLAN tunnel Tx offload flag setting' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/liquidio: fix MTU calculation from port configuration' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/bnxt: fix reporting of link status' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'kni: fix build with gcc 7.1' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/enic: " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/mlx5: " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'vhost: fix malloc size too small' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'vhost: fix guest pages memory leak' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'vhost: fix crash on NUMA' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'net/virtio: zero the whole memory zone' " Yuanhan Liu
2017-06-20 11:35 ` [dpdk-stable] patch 'lpm: fix index of tbl8' " Yuanhan Liu

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