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* [dpdk-dev] [PATCH] vdev: fix name comparison in find_vdev
@ 2018-03-09 22:28 Nachiketa Prachanda
  2018-03-12  2:51 ` Tan, Jianfeng
  0 siblings, 1 reply; 4+ messages in thread
From: Nachiketa Prachanda @ 2018-03-09 22:28 UTC (permalink / raw)
  To: Jianfeng Tan; +Cc: dev, Nachiketa Prachanda, jblunck, stable

Use strcmp to compare device names as the strncmp in original code
causes find_vdev to return -EEXIST  for names that are prefix
of another. The creation of interfaces fails unpredictably based
on the order of their creation. An easy way hit this bug is to create
eth_vhost1 after eth_vhost11.

Signed-off-by: Nachiketa Prachanda <nprachan@vyatta.att-mail.com>

Fixes: dda987315ca2 ("vdev: make virtual bus use its device struct")
Cc: jblunck@infradead.org
Cc: stable@dpdk.org
---
 drivers/bus/vdev/vdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index e4bc724..7eae319 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -188,7 +188,7 @@ find_vdev(const char *name)
 	TAILQ_FOREACH(dev, &vdev_device_list, next) {
 		const char *devname = rte_vdev_device_name(dev);
 
-		if (!strncmp(devname, name, strlen(name)))
+		if (!strcmp(devname, name))
 			return dev;
 	}
 
-- 
2.7.4

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2018-03-27 22:35 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-09 22:28 [dpdk-dev] [PATCH] vdev: fix name comparison in find_vdev Nachiketa Prachanda
2018-03-12  2:51 ` Tan, Jianfeng
2018-03-12 16:54   ` [dpdk-dev] [PATCH v2] " Nachiketa Prachanda
2018-03-27 22:35     ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon

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