netdev - [PATCH iproute2 1/2] Revert "ip6tunnel: fix 'ip -6 {show|change} dev <name>' cmds"

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Date:   Tue,  9 Jul 2019 15:16:50 +0200
From:   Andrea Claudi <aclaudi@...hat.com>
To:     netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, dsahern@...nel.org
Subject: [PATCH iproute2 1/2] Revert "ip6tunnel: fix 'ip -6 {show|change} dev <name>' cmds"

This reverts commit ba126dcad20e6d0e472586541d78bdd1ac4f1123.
It breaks tunnel creation when using 'dev' parameter:

$ ip link add type dummy
$ ip -6 tunnel add ip6tnl1 mode ip6ip6 remote 2001:db8:ffff:100::2 local 2001:db8:ffff:100::1 hoplimit 1 tclass 0x0 dev dummy0
add tunnel "ip6tnl0" failed: File exists

dev parameter must be used to specify the device to which
the tunnel is binded, and not the tunnel itself.

Reported-by: Jianwen Ji <jiji@...hat.com>
Reviewed-by: Matteo Croce <mcroce@...hat.com>
Signed-off-by: Andrea Claudi <aclaudi@...hat.com>
---
 ip/ip6tunnel.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/ip/ip6tunnel.c b/ip/ip6tunnel.c
index 56fd3466ed062..999408ed801b1 100644
--- a/ip/ip6tunnel.c
+++ b/ip/ip6tunnel.c
@@ -298,8 +298,6 @@ static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
 		p->link = ll_name_to_index(medium);
 		if (!p->link)
 			return nodev(medium);
-		else
-			strlcpy(p->name, medium, sizeof(p->name));
 	}
 	return 0;
 }
-- 
2.20.1