4.4-stable patches

added patches:
	tipc-move-linearization-of-buffers-to-generic-code.patch

diff --git a/queue-4.4/series b/queue-4.4/series
index 46743f3e17d8850f002eeac8076b4c57fc3fec73..62c97a9258b8b9cd07fe9857fb29b769facde7a1 100644 (file)
--- a/queue-4.4/series
+++ b/queue-4.4/series
@@ -5,3 +5,4 @@ mips-kvm-check-for-pfn-noslot-case.patch
 revert-kvm-x86-fix-missed-hardware-breakpoints.patch
 fscrypto-require-write-access-to-mount-to-set-encryption-policy.patch
 lightnvm-put-bio-before-return.patch
+tipc-move-linearization-of-buffers-to-generic-code.patch

diff --git a/queue-4.4/tipc-move-linearization-of-buffers-to-generic-code.patch b/queue-4.4/tipc-move-linearization-of-buffers-to-generic-code.patch
new file mode 100644 (file)
index 0000000..aab53b8
--- /dev/null
+++ b/queue-4.4/tipc-move-linearization-of-buffers-to-generic-code.patch
@@ -0,0 +1,75 @@
+From juerg.haefliger@hpe.com Wed Sep 21 15:00:23 2016
+From: Juerg Haefliger <juerg.haefliger@hpe.com>
+Date: Wed, 21 Sep 2016 15:00:02 +0200
+Subject: tipc: move linearization of buffers to generic code
+To: netdev@vger.kernel.org, davem@davemloft.net
+Cc: jonas.arndt@hpe.com, Jon Paul Maloy <jon.maloy@ericsson.com>, Juerg Haefliger <juerg.haefliger@hpe.com>
+Message-ID: <20160921130002.24939-1-juerg.haefliger@hpe.com>
+
+From: Jon Paul Maloy <jon.maloy@ericsson.com>
+
+commit c7cad0d6f70cd4ce8644ffe528a4df1cdc2e77f5 upstream.
+
+In commit 5cbb28a4bf65c7e4 ("tipc: linearize arriving NAME_DISTR
+and LINK_PROTO buffers") we added linearization of NAME_DISTRIBUTOR,
+LINK_PROTOCOL/RESET and LINK_PROTOCOL/ACTIVATE to the function
+tipc_udp_recv(). The location of the change was selected in order
+to make the commit easily appliable to 'net' and 'stable'.
+
+We now move this linearization to where it should be done, in the
+functions tipc_named_rcv() and tipc_link_proto_rcv() respectively.
+
+Reviewed-by: Ying Xue <ying.xue@windriver.com>
+Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ net/tipc/link.c       |    2 ++
+ net/tipc/name_distr.c |    1 +
+ net/tipc/udp_media.c  |    5 -----
+ 3 files changed, 3 insertions(+), 5 deletions(-)
+
+--- a/net/tipc/link.c
++++ b/net/tipc/link.c
+@@ -1262,6 +1262,8 @@ static int tipc_link_proto_rcv(struct ti
+               /* fall thru' */
+ 
+       case ACTIVATE_MSG:
++              skb_linearize(skb);
++              hdr = buf_msg(skb);
+ 
+               /* Complete own link name with peer's interface name */
+               if_name =  strrchr(l->name, ':') + 1;
+--- a/net/tipc/name_distr.c
++++ b/net/tipc/name_distr.c
+@@ -397,6 +397,7 @@ void tipc_named_rcv(struct net *net, str
+ 
+       spin_lock_bh(&tn->nametbl_lock);
+       for (skb = skb_dequeue(inputq); skb; skb = skb_dequeue(inputq)) {
++              skb_linearize(skb);
+               msg = buf_msg(skb);
+               mtype = msg_type(msg);
+               item = (struct distr_item *)msg_data(msg);
+--- a/net/tipc/udp_media.c
++++ b/net/tipc/udp_media.c
+@@ -48,7 +48,6 @@
+ #include <linux/tipc_netlink.h>
+ #include "core.h"
+ #include "bearer.h"
+-#include "msg.h"
+ 
+ /* IANA assigned UDP port */
+ #define UDP_PORT_DEFAULT      6118
+@@ -224,10 +223,6 @@ static int tipc_udp_recv(struct sock *sk
+ {
+       struct udp_bearer *ub;
+       struct tipc_bearer *b;
+-      int usr = msg_user(buf_msg(skb));
+-
+-      if ((usr == LINK_PROTOCOL) || (usr == NAME_DISTRIBUTOR))
+-              skb_linearize(skb);
+ 
+       ub = rcu_dereference_sk_user_data(sk);
+       if (!ub) {