[dpdk-dev] [PATCH] vdev: fix name comparison in find_vdev
Tan, Jianfeng
jianfeng.tan at intel.com
Mon Mar 12 03:51:20 CET 2018
Hi,
On 3/10/2018 6:28 AM, Nachiketa Prachanda wrote:
> 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 at vyatta.att-mail.com>
Except a nit bellow:
Acked-by: Jianfeng Tan <jianfeng.tan at intel.com>
>
> Fixes: dda987315ca2 ("vdev: make virtual bus use its device struct")
> Cc: jblunck at infradead.org
> Cc: stable at dpdk.org
AFAIK, we usually put above line before Signed-off-by.
> ---
> 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;
> }
>
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