Patch "net: switchdev: fix return code of fdb_dump stub" has been added to the 4.2-stable tree

Patch "net: switchdev: fix return code of fdb_dump stub" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    net: switchdev: fix return code of fdb_dump stub

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-switchdev-fix-return-code-of-fdb_dump-stub.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Fri Dec 11 11:38:35 EST 2015
From: Dragos Tatulea <dragos@endocode.com>
Date: Mon, 16 Nov 2015 10:52:48 +0100
Subject: net: switchdev: fix return code of fdb_dump stub

From: Dragos Tatulea <dragos@endocode.com>

[ Upstream commit 24cb7055a3066634a0f3fa0cd6a4780652905d35 ]

rtnl_fdb_dump always expects an index to be returned by the ndo_fdb_dump op,
but when CONFIG_NET_SWITCHDEV is off, it returns an error.

Fix that by returning the given unmodified idx.

A similar fix was 0890cf6cb6ab ("switchdev: fix return value of
switchdev_port_fdb_dump in case of error") but for the CONFIG_NET_SWITCHDEV=y
case.

Fixes: 45d4122ca7cd ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops.")
Signed-off-by: Dragos Tatulea <dragos@endocode.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/net/switchdev.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -268,7 +268,7 @@ static inline int switchdev_port_fdb_dum
 					  struct net_device *filter_dev,
 					  int idx)
 {
-	return -EOPNOTSUPP;
+       return idx;
 }
 
 #endif


Patches currently in stable-queue which might be from dragos@endocode.com are

queue-4.2/net-switchdev-fix-return-code-of-fdb_dump-stub.patch