[dpdk-stable] [PATCH v1] net/vdev_netvsc: fix creating short name devices

[Ophir Munk]

Prior to this commit the vdev_netvsc PMD was creating tap and failsafe
devices with long names, such as "net_tap_net_vdev_netvsc0" or
"net_failsafe_net_vdev_netvsc0".
Long names containing more than 32 characters may be rejected by some
APIs (e.g. membuf pool creation).
This commits fixes this issue by creating tap and failsafe devices
with short names such as "tap_net_vsc0" or "net_failsafe_vsc0".

Fixes: e7dc5d7becc5 ("net/vdev_netvsc: implement core functionality")
Cc: stable at dpdk.org

Signed-off-by: Ophir Munk <ophirmu at mellanox.com>
---
 drivers/net/vdev_netvsc/vdev_netvsc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/vdev_netvsc/vdev_netvsc.c b/drivers/net/vdev_netvsc/vdev_netvsc.c
index db0080a..bb2f78d 100644
--- a/drivers/net/vdev_netvsc/vdev_netvsc.c
+++ b/drivers/net/vdev_netvsc/vdev_netvsc.c
@@ -614,13 +614,13 @@ vdev_netvsc_netvsc_probe(const struct if_nameindex *iface,
 		       name, ctx->id);
 	if (ret == -1 || (size_t)ret >= sizeof(ctx->name))
 		++i;
-	ret = snprintf(ctx->devname, sizeof(ctx->devname), "net_failsafe_%s",
-		       ctx->name);
+	ret = snprintf(ctx->devname, sizeof(ctx->devname), "net_failsafe_vsc%u",
+		       ctx->id);
 	if (ret == -1 || (size_t)ret >= sizeof(ctx->devname))
 		++i;
 	ret = snprintf(ctx->devargs, sizeof(ctx->devargs),
-		       "fd(%d),dev(net_tap_%s,remote=%s)",
-		       ctx->pipe[0], ctx->name, ctx->if_name);
+		       "fd(%d),dev(net_tap_vsc%u,remote=%s)",
+		       ctx->pipe[0], ctx->id, ctx->if_name);
 	if (ret == -1 || (size_t)ret >= sizeof(ctx->devargs))
 		++i;
 	if (i) {
-- 
2.7.4