Patch "sierra_net: Skip validating irrelevant fields for IDLE LSIs" has been added to the 4.4-stable tree

Patch "sierra_net: Skip validating irrelevant fields for IDLE LSIs" has been added to the 4.4-stable tree

[gregkh]

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

    sierra_net: Skip validating irrelevant fields for IDLE LSIs

to the 4.4-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:
     sierra_net-skip-validating-irrelevant-fields-for-idle-lsis.patch
and it can be found in the queue-4.4 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 Thu Jun 15 11:13:01 CEST 2017
From: Stefan Br�ns <stefan.bruens@rwth-aachen.de>
Date: Tue, 23 May 2017 21:53:42 -0400
Subject: sierra_net: Skip validating irrelevant fields for IDLE LSIs

From: Stefan Br�ns <stefan.bruens@rwth-aachen.de>


[ Upstream commit 764895d3039e903dac3a70f219949efe43d036a0 ]

When the context is deactivated, the link_type is set to 0xff, which
triggers a warning message, and results in a wrong link status, as
the LSI is ignored.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/usb/sierra_net.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -365,6 +365,13 @@ static int sierra_net_parse_lsi(struct u
 		return -1;
 	}
 
+	/* Validate the session state */
+	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
+		netdev_err(dev->net, "Session idle, 0x%02x\n",
+			   lsi->session_state);
+		return 0;
+	}
+
 	/* Validate the protocol  - only support UMTS for now */
 	if (lsi->protocol != SIERRA_NET_PROTOCOL_UMTS) {
 		netdev_err(dev->net, "Protocol unsupported, 0x%02x\n",
@@ -386,13 +393,6 @@ static int sierra_net_parse_lsi(struct u
 		return 0;
 	}
 
-	/* Validate the session state */
-	if (lsi->session_state == SIERRA_NET_SESSION_IDLE) {
-		netdev_err(dev->net, "Session idle, 0x%02x\n",
-			lsi->session_state);
-		return 0;
-	}
-
 	/* Set link_sense true */
 	return 1;
 }


Patches currently in stable-queue which might be from stefan.bruens@rwth-aachen.de are

queue-4.4/sierra_net-skip-validating-irrelevant-fields-for-idle-lsis.patch
queue-4.4/sierra_net-add-support-for-ipv6-and-dual-stack-link-sense-indications.patch