cascardo/linux.git
8 years agomac80211: fix statistics leak if dev_alloc_name() fails
Johannes Berg [Tue, 26 Apr 2016 11:47:08 +0000 (13:47 +0200)]
mac80211: fix statistics leak if dev_alloc_name() fails

In the case that dev_alloc_name() fails, e.g. because the name was
given by the user and already exists, we need to clean up properly
and free the per-CPU statistics. Fix that.

Cc: stable@vger.kernel.org
Fixes: 5a490510ba5f ("mac80211: use per-CPU TX/RX statistics")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agonl80211: check netlink protocol in socket release notification
Dmitry Ivanov [Wed, 6 Apr 2016 14:23:18 +0000 (17:23 +0300)]
nl80211: check netlink protocol in socket release notification

A non-privileged user can create a netlink socket with the same port_id as
used by an existing open nl80211 netlink socket (e.g. as used by a hostapd
process) with a different protocol number.

Closing this socket will then lead to the notification going to nl80211's
socket release notification handler, and possibly cause an action such as
removing a virtual interface.

Fix this issue by checking that the netlink protocol is NETLINK_GENERIC.
Since generic netlink has no notifier chain of its own, we can't fix the
problem more generically.

Fixes: 026331c4d9b5 ("cfg80211/mac80211: allow registering for and sending action frames")
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Ivanov <dima@ubnt.com>
[rewrite commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agoMerge tag 'mac80211-for-davem-2016-04-06' of git://git.kernel.org/pub/scm/linux/kerne...
David S. Miller [Fri, 8 Apr 2016 20:41:28 +0000 (16:41 -0400)]
Merge tag 'mac80211-for-davem-2016-04-06' of git://git./linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
For the current RC series, we have the following fixes:
 * TDLS fixes from Arik and Ilan
 * rhashtable fixes from Ben and myself
 * documentation fixes from Luis
 * U-APSD fixes from Emmanuel
 * a TXQ fix from Felix
 * and a compiler warning suppression from Jeff
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agobridge, netem: mark mailing lists as moderated
stephen hemminger [Tue, 5 Apr 2016 20:43:53 +0000 (13:43 -0700)]
bridge, netem: mark mailing lists as moderated

I moderate these (lightly loaded) lists to block spam.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotuntap: restore default qdisc
Jason Wang [Fri, 8 Apr 2016 05:26:48 +0000 (13:26 +0800)]
tuntap: restore default qdisc

After commit f84bb1eac027 ("net: fix IFF_NO_QUEUE for drivers using
alloc_netdev"), default qdisc was changed to noqueue because
tuntap does not set tx_queue_len during .setup(). This patch restores
default qdisc by setting tx_queue_len in tun_setup().

Fixes: f84bb1eac027 ("net: fix IFF_NO_QUEUE for drivers using alloc_netdev")
Cc: Phil Sutter <phil@nwl.cc>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agompls: find_outdev: check for err ptr in addition to NULL check
Roopa Prabhu [Fri, 8 Apr 2016 04:28:38 +0000 (21:28 -0700)]
mpls: find_outdev: check for err ptr in addition to NULL check

find_outdev calls inet{,6}_fib_lookup_dev() or dev_get_by_index() to
find the output device. In case of an error, inet{,6}_fib_lookup_dev()
returns error pointer and dev_get_by_index() returns NULL. But the function
only checks for NULL and thus can end up calling dev_put on an ERR_PTR.
This patch adds an additional check for err ptr after the NULL check.

Before: Trying to add an mpls route with no oif from user, no available
path to 10.1.1.8 and no default route:
$ip -f mpls route add 100 as 200 via inet 10.1.1.8
[  822.337195] BUG: unable to handle kernel NULL pointer dereference at
00000000000003a3
[  822.340033] IP: [<ffffffff8148781e>] mpls_nh_assign_dev+0x10b/0x182
[  822.340033] PGD 1db38067 PUD 1de9e067 PMD 0
[  822.340033] Oops: 0000 [#1] SMP
[  822.340033] Modules linked in:
[  822.340033] CPU: 0 PID: 11148 Comm: ip Not tainted 4.5.0-rc7+ #54
[  822.340033] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
BIOS rel-1.7.5.1-0-g8936dbb-20141113_115728-nilsson.home.kraxel.org
04/01/2014
[  822.340033] task: ffff88001db82580 ti: ffff88001dad4000 task.ti:
ffff88001dad4000
[  822.340033] RIP: 0010:[<ffffffff8148781e>]  [<ffffffff8148781e>]
mpls_nh_assign_dev+0x10b/0x182
[  822.340033] RSP: 0018:ffff88001dad7a88  EFLAGS: 00010282
[  822.340033] RAX: ffffffffffffff9b RBX: ffffffffffffff9b RCX:
0000000000000002
[  822.340033] RDX: 00000000ffffff9b RSI: 0000000000000008 RDI:
0000000000000000
[  822.340033] RBP: ffff88001ddc9ea0 R08: ffff88001e9f1768 R09:
0000000000000000
[  822.340033] R10: ffff88001d9c1100 R11: ffff88001e3c89f0 R12:
ffffffff8187e0c0
[  822.340033] R13: ffffffff8187e0c0 R14: ffff88001ddc9e80 R15:
0000000000000004
[  822.340033] FS:  00007ff9ed798700(0000) GS:ffff88001fc00000(0000)
knlGS:0000000000000000
[  822.340033] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  822.340033] CR2: 00000000000003a3 CR3: 000000001de89000 CR4:
00000000000006f0
[  822.340033] Stack:
[  822.340033]  0000000000000000 0000000100000000 0000000000000000
0000000000000000
[  822.340033]  0000000000000000 0801010a00000000 0000000000000000
0000000000000000
[  822.340033]  0000000000000004 ffffffff8148749b ffffffff8187e0c0
000000000000001c
[  822.340033] Call Trace:
[  822.340033]  [<ffffffff8148749b>] ? mpls_rt_alloc+0x2b/0x3e
[  822.340033]  [<ffffffff81488e66>] ? mpls_rtm_newroute+0x358/0x3e2
[  822.340033]  [<ffffffff810e7bbc>] ? get_page+0x5/0xa
[  822.340033]  [<ffffffff813b7d94>] ? rtnetlink_rcv_msg+0x17e/0x191
[  822.340033]  [<ffffffff8111794e>] ? __kmalloc_track_caller+0x8c/0x9e
[  822.340033]  [<ffffffff813c9393>] ?
rht_key_hashfn.isra.20.constprop.57+0x14/0x1f
[  822.340033]  [<ffffffff813b7c16>] ? __rtnl_unlock+0xc/0xc
[  822.340033]  [<ffffffff813cb794>] ? netlink_rcv_skb+0x36/0x82
[  822.340033]  [<ffffffff813b4507>] ? rtnetlink_rcv+0x1f/0x28
[  822.340033]  [<ffffffff813cb2b1>] ? netlink_unicast+0x106/0x189
[  822.340033]  [<ffffffff813cb5b3>] ? netlink_sendmsg+0x27f/0x2c8
[  822.340033]  [<ffffffff81392ede>] ? sock_sendmsg_nosec+0x10/0x1b
[  822.340033]  [<ffffffff81393df1>] ? ___sys_sendmsg+0x182/0x1e3
[  822.340033]  [<ffffffff810e4f35>] ?
__alloc_pages_nodemask+0x11c/0x1e4
[  822.340033]  [<ffffffff8110619c>] ? PageAnon+0x5/0xd
[  822.340033]  [<ffffffff811062fe>] ? __page_set_anon_rmap+0x45/0x52
[  822.340033]  [<ffffffff810e7bbc>] ? get_page+0x5/0xa
[  822.340033]  [<ffffffff810e85ab>] ? __lru_cache_add+0x1a/0x3a
[  822.340033]  [<ffffffff81087ea9>] ? current_kernel_time64+0x9/0x30
[  822.340033]  [<ffffffff813940c4>] ? __sys_sendmsg+0x3c/0x5a
[  822.340033]  [<ffffffff8148f597>] ?
entry_SYSCALL_64_fastpath+0x12/0x6a
[  822.340033] Code: 83 08 04 00 00 65 ff 00 48 8b 3c 24 e8 40 7c f2 ff
eb 13 48 c7 c3 9f ff ff ff eb 0f 89 ce e8 f1 ae f1 ff 48 89 c3 48 85 db
74 15 <48> 8b 83 08 04 00 00 65 ff 08 48 81 fb 00 f0 ff ff 76 0d eb 07
[  822.340033] RIP  [<ffffffff8148781e>] mpls_nh_assign_dev+0x10b/0x182
[  822.340033]  RSP <ffff88001dad7a88>
[  822.340033] CR2: 00000000000003a3
[  822.435363] ---[ end trace 98cc65e6f6b8bf11 ]---

After patch:
$ip -f mpls route add 100 as 200 via inet 10.1.1.8
RTNETLINK answers: Network is unreachable

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv6: Count in extension headers in skb->network_header
Jakub Sitnicki [Tue, 5 Apr 2016 16:41:08 +0000 (18:41 +0200)]
ipv6: Count in extension headers in skb->network_header

When sending a UDPv6 message longer than MTU, account for the length
of fragmentable IPv6 extension headers in skb->network_header offset.
Same as we do in alloc_new_skb path in __ip6_append_data().

This ensures that later on __ip6_make_skb() will make space in
headroom for fragmentable extension headers:

/* move skb->data to ip header from ext header */
if (skb->data < skb_network_header(skb))
__skb_pull(skb, skb_network_offset(skb));

Prevents a splat due to skb_under_panic:

skbuff: skb_under_panic: text:ffffffff8143397b len:2126 put:14 \
head:ffff880005bacf50 data:ffff880005bacf4a tail:0x48 end:0xc0 dev:lo
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:104!
invalid opcode: 0000 [#1] KASAN
CPU: 0 PID: 160 Comm: reproducer Not tainted 4.6.0-rc2 #65
[...]
Call Trace:
 [<ffffffff813eb7b9>] skb_push+0x79/0x80
 [<ffffffff8143397b>] eth_header+0x2b/0x100
 [<ffffffff8141e0d0>] neigh_resolve_output+0x210/0x310
 [<ffffffff814eab77>] ip6_finish_output2+0x4a7/0x7c0
 [<ffffffff814efe3a>] ip6_output+0x16a/0x280
 [<ffffffff815440c1>] ip6_local_out+0xb1/0xf0
 [<ffffffff814f1115>] ip6_send_skb+0x45/0xd0
 [<ffffffff81518836>] udp_v6_send_skb+0x246/0x5d0
 [<ffffffff8151985e>] udpv6_sendmsg+0xa6e/0x1090
[...]

Reported-by: Ji Jianwen <jiji@redhat.com>
Signed-off-by: Jakub Sitnicki <jkbs@redhat.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoRDS: fix congestion map corruption for PAGE_SIZE > 4k
shamir rabinovitch [Thu, 7 Apr 2016 11:57:36 +0000 (07:57 -0400)]
RDS: fix congestion map corruption for PAGE_SIZE > 4k

When PAGE_SIZE > 4k single page can contain 2 RDS fragments. If
'rds_ib_cong_recv' ignore the RDS fragment offset in to the page it
then read the data fragment as far congestion map update and lead to
corruption of the RDS connection far congestion map.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoRDS: memory allocated must be align to 8
shamir rabinovitch [Thu, 7 Apr 2016 11:57:35 +0000 (07:57 -0400)]
RDS: memory allocated must be align to 8

Fix issue in 'rds_ib_cong_recv' when accessing unaligned memory
allocated by 'rds_page_remainder_alloc' using uint64_t pointer.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoGRE: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU
Alexander Duyck [Tue, 5 Apr 2016 16:13:39 +0000 (09:13 -0700)]
GRE: Disable segmentation offloads w/ CSUM and we are encapsulated via FOU

This patch fixes an issue I found in which we were dropping frames if we
had enabled checksums on GRE headers that were encapsulated by either FOU
or GUE.  Without this patch I was barely able to get 1 Gb/s of throughput.
With this patch applied I am now at least getting around 6 Gb/s.

The issue is due to the fact that with FOU or GUE applied we do not provide
a transport offset pointing to the GRE header, nor do we offload it in
software as the GRE header is completely skipped by GSO and treated like a
VXLAN or GENEVE type header.  As such we need to prevent the stack from
generating it and also prevent GRE from generating it via any interface we
create.

Fixes: c3483384ee511 ("gro: Allow tunnel stacking in the case of FOU/GUE")
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: add the AF_KCM entries to family name tables
Dexuan Cui [Tue, 5 Apr 2016 14:41:11 +0000 (07:41 -0700)]
net: add the AF_KCM entries to family name tables

This is for the recent kcm driver, which introduces AF_KCM(41) in
b7ac4eb(kcm: Kernel Connection Multiplexor module).

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Cc: Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMAINTAINERS: intel-wired-lan list is moderated
Jiri Benc [Tue, 5 Apr 2016 14:39:37 +0000 (16:39 +0200)]
MAINTAINERS: intel-wired-lan list is moderated

I got the following message:

> Your mail to 'Intel-wired-lan' with the subject
>
>     [PATCH net-next] net: intel: remove dead links
>
> Is being held until the list moderator can review it for approval.
>
> The reason it is being held:
>
>     Post by non-member to a members-only list

Mark the list as moderated.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agolib/test_bpf: Add additional BPF_ADD tests
Naveen N. Rao [Tue, 5 Apr 2016 10:02:56 +0000 (15:32 +0530)]
lib/test_bpf: Add additional BPF_ADD tests

Some of these tests proved useful with the powerpc eBPF JIT port due to
sign-extended 16-bit immediate loads. Though some of these aspects get
covered in other tests, it is better to have explicit tests so as to
quickly tag the precise problem.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agolib/test_bpf: Add test to check for result of 32-bit add that overflows
Naveen N. Rao [Tue, 5 Apr 2016 10:02:55 +0000 (15:32 +0530)]
lib/test_bpf: Add test to check for result of 32-bit add that overflows

BPF_ALU32 and BPF_ALU64 tests for adding two 32-bit values that results in
32-bit overflow.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agolib/test_bpf: Add tests for unsigned BPF_JGT
Naveen N. Rao [Tue, 5 Apr 2016 10:02:54 +0000 (15:32 +0530)]
lib/test_bpf: Add tests for unsigned BPF_JGT

Unsigned Jump-if-Greater-Than.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agolib/test_bpf: Fix JMP_JSET tests
Naveen N. Rao [Tue, 5 Apr 2016 10:02:53 +0000 (15:32 +0530)]
lib/test_bpf: Fix JMP_JSET tests

JMP_JSET tests incorrectly used BPF_JNE. Fix the same.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoVSOCK: Detach QP check should filter out non matching QPs.
Jorgen Hansen [Tue, 5 Apr 2016 08:59:32 +0000 (01:59 -0700)]
VSOCK: Detach QP check should filter out non matching QPs.

The check in vmci_transport_peer_detach_cb should only allow a
detach when the qp handle of the transport matches the one in
the detach message.

Testing: Before this change, a detach from a peer on a different
socket would cause an active stream socket to register a detach.

Reviewed-by: George Zhang <georgezhang@vmware.com>
Signed-off-by: Jorgen Hansen <jhansen@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agostmmac: fix adjust link call in case of a switch is attached
Giuseppe CAVALLARO [Tue, 5 Apr 2016 06:46:57 +0000 (08:46 +0200)]
stmmac: fix adjust link call in case of a switch is attached

While initializing the phy, the stmmac driver sets the
PHY_IGNORE_INTERRUPT so the PAL won't call the adjust hook
that is needed, on some platforms, e.g. STi, to invoke the glue.

The patch allows the PAL to poll the stmmac_adjust_link just one time
in case of a switch is attached, setting later the PHY_IGNORE_INTERRUPT
flag.
Moving this kind of logic inside the adjust_link it makes sense to
anticipate the check for EEE that will never initialized in this
scenario.

Reported-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Tested-by: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoaf_packet: tone down the Tx-ring unsupported spew.
Dave Jones [Mon, 4 Apr 2016 19:11:50 +0000 (15:11 -0400)]
af_packet: tone down the Tx-ring unsupported spew.

Trinity and other fuzzers can hit this WARN on far too easily,
resulting in a tainted kernel that hinders automated fuzzing.

Replace it with a rate-limited printk.

Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet_sched: fix a memory leak in tc action
WANG Cong [Mon, 4 Apr 2016 17:32:48 +0000 (10:32 -0700)]
net_sched: fix a memory leak in tc action

Fixes: ddf97ccdd7cb ("net_sched: add network namespace support for tc actions")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosamples/bpf: Enable powerpc support
Naveen N. Rao [Mon, 4 Apr 2016 17:01:34 +0000 (22:31 +0530)]
samples/bpf: Enable powerpc support

Add the necessary definitions for building bpf samples on ppc.

Since ppc doesn't store function return address on the stack, modify how
PT_REGS_RET() and PT_REGS_FP() work.

Also, introduce PT_REGS_IP() to access the instruction pointer.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosamples/bpf: Use llc in PATH, rather than a hardcoded value
Naveen N. Rao [Mon, 4 Apr 2016 17:01:33 +0000 (22:31 +0530)]
samples/bpf: Use llc in PATH, rather than a hardcoded value

While at it, remove the generation of .s files and fix some typos in the
related comment.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosamples/bpf: Fix build breakage with map_perf_test_user.c
Naveen N. Rao [Mon, 4 Apr 2016 17:01:32 +0000 (22:31 +0530)]
samples/bpf: Fix build breakage with map_perf_test_user.c

Building BPF samples is failing with the below error:

samples/bpf/map_perf_test_user.c: In function ‘main’:
samples/bpf/map_perf_test_user.c:134:9: error: variable ‘r’ has
initializer but incomplete type
  struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
         ^
samples/bpf/map_perf_test_user.c:134:21: error: ‘RLIM_INFINITY’
undeclared (first use in this function)
  struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
                     ^
samples/bpf/map_perf_test_user.c:134:21: note: each undeclared
identifier is reported only once for each function it appears in
samples/bpf/map_perf_test_user.c:134:9: warning: excess elements in
struct initializer [enabled by default]
  struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
         ^
samples/bpf/map_perf_test_user.c:134:9: warning: (near initialization
for ‘r’) [enabled by default]
samples/bpf/map_perf_test_user.c:134:9: warning: excess elements in
struct initializer [enabled by default]
samples/bpf/map_perf_test_user.c:134:9: warning: (near initialization
for ‘r’) [enabled by default]
samples/bpf/map_perf_test_user.c:134:16: error: storage size of ‘r’
isn’t known
  struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
                ^
samples/bpf/map_perf_test_user.c:139:2: warning: implicit declaration of
function ‘setrlimit’ [-Wimplicit-function-declaration]
  setrlimit(RLIMIT_MEMLOCK, &r);
  ^
samples/bpf/map_perf_test_user.c:139:12: error: ‘RLIMIT_MEMLOCK’
undeclared (first use in this function)
  setrlimit(RLIMIT_MEMLOCK, &r);
            ^
samples/bpf/map_perf_test_user.c:134:16: warning: unused variable ‘r’
[-Wunused-variable]
  struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
                ^
make[2]: *** [samples/bpf/map_perf_test_user.o] Error 1

Fix this by including the necessary header file.

Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoRevert "bridge: Fix incorrect variable assignment on error path in br_sysfs_addbr"
David S. Miller [Wed, 6 Apr 2016 19:42:45 +0000 (15:42 -0400)]
Revert "bridge: Fix incorrect variable assignment on error path in br_sysfs_addbr"

This reverts commit c862cc9b70526a71d07e7bd86d9b61d1c792cead.

Patch lacks a real-name Signed-off-by.

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agocxgb4: Add pci device id for chelsio t520-cr adapter
Hariprasad Shenai [Mon, 4 Apr 2016 04:24:53 +0000 (09:54 +0530)]
cxgb4: Add pci device id for chelsio t520-cr adapter

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomac80211: fix "warning: ‘target_metric’ may be used uninitialized"
Jeff Mahoney [Mon, 4 Apr 2016 18:15:23 +0000 (14:15 -0400)]
mac80211: fix "warning: ‘target_metric’ may be used uninitialized"

This fixes:

net/mac80211/mesh_hwmp.c:603:26: warning: ‘target_metric’ may be used uninitialized in this function

target_metric is only consumed when reply = true so no bug exists here,
but not all versions of gcc realize it.  Initialize to 0 to remove the
warning.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agoip6_tunnel: set rtnl_link_ops before calling register_netdevice
Thadeu Lima de Souza Cascardo [Fri, 1 Apr 2016 20:17:50 +0000 (17:17 -0300)]
ip6_tunnel: set rtnl_link_ops before calling register_netdevice

When creating an ip6tnl tunnel with ip tunnel, rtnl_link_ops is not set
before ip6_tnl_create2 is called. When register_netdevice is called, there
is no linkinfo attribute in the NEWLINK message because of that.

Setting rtnl_link_ops before calling register_netdevice fixes that.

Fixes: 0b112457229d ("ip6tnl: add support of link creation via rtnl")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoRevert "netpoll: Fix extra refcount release in netpoll_cleanup()"
Bjorn Helgaas [Tue, 5 Apr 2016 20:58:22 +0000 (15:58 -0500)]
Revert "netpoll: Fix extra refcount release in netpoll_cleanup()"

This reverts commit 543e3a8da5a4c453e992d5351ef405d5e32f27d7.

Direct callers of __netpoll_setup() depend on it to set np->dev,
so we can't simply move that assignment up to netpoll_stup().

Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Tue, 5 Apr 2016 23:31:19 +0000 (19:31 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-04-05

This series contains updates to i40e and e1000.

Jesse fixes an issue where code was added by a previous commit but the
flag to enable it was never set.

Alex fixes the e1000 driver from grossly overestimated the descriptors
needed to transmit a frame.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoe1000: Double Tx descriptors needed check for 82544
Alexander Duyck [Wed, 2 Mar 2016 21:16:08 +0000 (16:16 -0500)]
e1000: Double Tx descriptors needed check for 82544

The 82544 has code that adds one additional descriptor per data buffer.
However we weren't taking that into account when determining the descriptors
needed for the next transmit at the end of the xmit_frame path.

This change takes that into account by doubling the number of descriptors
needed for the 82544 so that we can avoid a potential issue where we could
hang the Tx ring by loading frames with xmit_more enabled and then stopping
the ring without writing the tail.

In addition it adds a few more descriptors to account for some additional
workarounds that have been added over time.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
8 years agoe1000: Do not overestimate descriptor counts in Tx pre-check
Alexander Duyck [Wed, 2 Mar 2016 21:16:01 +0000 (16:16 -0500)]
e1000: Do not overestimate descriptor counts in Tx pre-check

The current code path is capable of grossly overestimating the number of
descriptors needed to transmit a new frame.  This specifically occurs if
the skb contains a number of 4K pages.  The issue is that the logic for
determining the descriptors needed is ((S) >> (X)) + 1.  When X is 12 it
means that we were indicating that we required 2 descriptors for each 4K
page when we only needed one.

This change corrects this by instead adding (1 << (X)) - 1 to the S value
instead of adding 1 after the fact.  This way we get an accurate descriptor
needed count as we are essentially doing a DIV_ROUNDUP().

Reported-by: Ivan Suzdal <isuzdal@mirantis.com>
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
8 years agoi40e: fix errant PCIe bandwidth message
Jesse Brandeburg [Mon, 29 Feb 2016 19:00:24 +0000 (11:00 -0800)]
i40e: fix errant PCIe bandwidth message

There was an error introduced with commit 3fced535079a ("i40e: X722 is
on the IOSF bus and does not report the PCI bus info"), where code was
added but the enabling flag is never set.

CC: Anjali Singhai Jain <anjali.singhai@intel.com>
CC: Stefan Assman <sassman@redhat.com>
Fixes: 3fced535079a ("i40e: X722 is on the IOSF bus ...")
Reported-by: Steve Best <sbest@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
8 years agosctp: use list_* in sctp_list_dequeue
Marcelo Ricardo Leitner [Fri, 1 Apr 2016 17:30:32 +0000 (14:30 -0300)]
sctp: use list_* in sctp_list_dequeue

Use list_* helpers in sctp_list_dequeue, more readable.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agosctp: flush if we can't fit another DATA chunk
Marcelo Ricardo Leitner [Fri, 1 Apr 2016 17:05:48 +0000 (14:05 -0300)]
sctp: flush if we can't fit another DATA chunk

There is no point on delaying the packet if we can't fit a single byte
of data on it anymore. So lets just reduce the threshold by the amount
that a data chunk with 4 bytes (rounding) would use.

v2: based on the right tree

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agomac80211: close the SP when we enqueue frames during the SP
Emmanuel Grumbach [Thu, 17 Mar 2016 14:51:42 +0000 (16:51 +0200)]
mac80211: close the SP when we enqueue frames during the SP

Since we enqueued the frame that was supposed to be sent
during the SP, and that frame may very well cary the
IEEE80211_TX_STATUS_EOSP bit, we may never close the SP
(WLAN_STA_SP will never be cleared). If that happens, we
will not open any new SP and will never respond to any poll
frame from the client.
Clear WLAN_STA_SP manually if a frame that was polled during
the SP is queued because of a starting A-MPDU session. The
client may not see the EOSP bit, but it will at least be
able to poll new frames in another SP.

Reported-by: Alesya Shapira <alesya.shapira@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[remove erroneous comment]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: Fix BW upgrade for TDLS peers
Ilan Peer [Tue, 8 Mar 2016 11:35:31 +0000 (13:35 +0200)]
mac80211: Fix BW upgrade for TDLS peers

It is possible that the station is connected to an AP
with bandwidth of 80+80MHz or 160MHz. In such cases
there is no need to perform an upgrade as the maximal
supported bandwidth is 80MHz.

In addition, when upgrading and setting center_freq1
and bandwidth to 80MHz also set center_freq2 to 0.

Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible"
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: don't send deferred frames outside the SP
Emmanuel Grumbach [Thu, 17 Mar 2016 14:51:41 +0000 (16:51 +0200)]
mac80211: don't send deferred frames outside the SP

Frames that are sent between
ampdu_action(IEEE80211_AMPDU_TX_START) and the move to the
HT_AGG_STATE_OPERATIONAL state are buffered.
If we try to start an A-MPDU session while the peer is
sleeping and polling frames with U-APSD, we may have frames
that will be buffered by ieee80211_tx_prep_agg. These frames
have IEEE80211_TX_CTL_NO_PS_BUFFER set since they are sent to
a sleeping client and possibly IEEE80211_TX_STATUS_EOSP.
If the frame is buffered, we need clear these two flags
since they will be re-sent after the move to
HT_AGG_STATE_OPERATIONAL state which is very likely to
happen after the SP ends.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: remove description of dropped member
Luis de Bethencourt [Fri, 18 Mar 2016 19:23:18 +0000 (19:23 +0000)]
mac80211: remove description of dropped member

Commit 976bd9efdae6 ("mac80211: move beacon_loss_count into ifmgd")
removed the member from the sta_info struct but the description stayed
lingering. Remove it.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: add doc for RX_FLAG_DUP_VALIDATED flag
Luis de Bethencourt [Fri, 18 Mar 2016 16:09:29 +0000 (16:09 +0000)]
mac80211: add doc for RX_FLAG_DUP_VALIDATED flag

Add documentation for the flag for duplication check.

Fixes the following warning when running make htmldocs:
warning: Enum value 'RX_FLAG_DUP_VALIDATED' not described in enum 'mac80211_rx_flags'

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
[fix description]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: ensure no limits on station rhashtable
Ben Greear [Fri, 1 Apr 2016 21:13:31 +0000 (14:13 -0700)]
mac80211: ensure no limits on station rhashtable

By default, the rhashtable logic will fail to insert
objects if the key-chains are too long and un-balanced.

In the degenerate case where mac80211 is creating many
virtual interfaces connected to the same peer(s), this
case can happen.

St insecure_elasticity to true to allow chains to grow
as long as needed.

Signed-off-by: Ben Greear <greearb@candelatech.com>
[remove message, change commit message slightly]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: properly deal with station hashtable insert errors
Johannes Berg [Thu, 31 Mar 2016 15:22:45 +0000 (17:22 +0200)]
mac80211: properly deal with station hashtable insert errors

The original hand-implemented hash-table in mac80211 couldn't result
in insertion errors, and while converting to rhashtable I evidently
forgot to check the errors.

This surfaced now only because Ben is adding many identical keys and
that resulted in hidden insertion errors.

Cc: stable@vger.kernel.org
Fixes: 7bedd0cfad4e1 ("mac80211: use rhashtable for station table")
Reported-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: recalc min_def chanctx even when chandef is identical
Arik Nemtsov [Wed, 2 Mar 2016 21:28:33 +0000 (23:28 +0200)]
mac80211: recalc min_def chanctx even when chandef is identical

The min_def chanctx is affected not only by the current chandef, but
sometimes also by other stations on the vif. There's a valid scenario
where a TDLS peer can widen its BW, thereby causing the min_def
to increase.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: TDLS: change BW calculation for WIDER_BW peers
Arik Nemtsov [Wed, 2 Mar 2016 21:28:32 +0000 (23:28 +0200)]
mac80211: TDLS: change BW calculation for WIDER_BW peers

The previous approach simply ignored chandef restrictions when calculating
the appropriate peer BW for a WIDER_BW peer. This could result in a
regulatory violation if both peers indicated 80MHz support, but the
regdomain forbade it.

Change the approach to setting a WIDER_BW peer's BW. Don't exempt it from
the chandef width at first. If during TDLS negotiation the chandef width
is upgraded, update the peer's BW to match.

Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible")
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: TDLS: always downgrade invalid chandefs
Arik Nemtsov [Wed, 2 Mar 2016 21:28:31 +0000 (23:28 +0200)]
mac80211: TDLS: always downgrade invalid chandefs

Even if the current chandef width is equal to the station's max-BW, it
doesn't mean it's a valid width for TDLS. Make sure to always check
regulatory constraints in these cases.

Fixes: 0fabfaafec3a ("mac80211: upgrade BW of TDLS peers when possible")
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agomac80211: fix AP buffered multicast frames with queue control and txq
Felix Fietkau [Sun, 28 Feb 2016 14:19:53 +0000 (15:19 +0100)]
mac80211: fix AP buffered multicast frames with queue control and txq

Buffered multicast frames must be passed to the driver directly via
drv_tx instead of going through the txq, otherwise they cannot easily be
scheduled to be sent after DTIM.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
8 years agobridge: Fix incorrect variable assignment on error path in br_sysfs_addbr
Bastien Philbert [Sun, 3 Apr 2016 23:04:26 +0000 (19:04 -0400)]
bridge: Fix incorrect variable assignment on error path in br_sysfs_addbr

This fixes the incorrect variable assignment on error path in
br_sysfs_addbr for when the call to kobject_create_and_add
fails to assign the value of -EINVAL to the returned variable of
err rather then incorrectly return zero making callers think this
function has succeededed due to the previous assignment being
assigned zero when assigning it the successful return value of
the call to sysfs_create_group which is zero.

Signed-off-by: Bastien Philbert <bastienphilbert@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv6: l2tp: fix a potential issue in l2tp_ip6_recv
Haishuang Yan [Sun, 3 Apr 2016 14:09:24 +0000 (22:09 +0800)]
ipv6: l2tp: fix a potential issue in l2tp_ip6_recv

pskb_may_pull() can change skb->data, so we have to load ptr/optr at the
right place.

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoipv4: l2tp: fix a potential issue in l2tp_ip_recv
Haishuang Yan [Sun, 3 Apr 2016 14:09:23 +0000 (22:09 +0800)]
ipv4: l2tp: fix a potential issue in l2tp_ip_recv

pskb_may_pull() can change skb->data, so we have to load ptr/optr at the
right place.

Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sat, 2 Apr 2016 01:03:33 +0000 (20:03 -0500)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Missing device reference in IPSEC input path results in crashes
    during device unregistration.  From Subash Abhinov Kasiviswanathan.

 2) Per-queue ISR register writes not being done properly in macb
    driver, from Cyrille Pitchen.

 3) Stats accounting bugs in bcmgenet, from Patri Gynther.

 4) Lightweight tunnel's TTL and TOS were swapped in netlink dumps, from
    Quentin Armitage.

 5) SXGBE driver has off-by-one in probe error paths, from Rasmus
    Villemoes.

 6) Fix race in save/swap/delete options in netfilter ipset, from
    Vishwanath Pai.

 7) Ageing time of bridge not set properly when not operating over a
    switchdev device.  Fix from Haishuang Yan.

 8) Fix GRO regression wrt nested FOU/GUE based tunnels, from Alexander
    Duyck.

 9) IPV6 UDP code bumps wrong stats, from Eric Dumazet.

10) FEC driver should only access registers that actually exist on the
    given chipset, fix from Fabio Estevam.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits)
  net: mvneta: fix changing MTU when using per-cpu processing
  stmmac: fix MDIO settings
  Revert "stmmac: Fix 'eth0: No PHY found' regression"
  stmmac: fix TX normal DESC
  net: mvneta: use cache_line_size() to get cacheline size
  net: mvpp2: use cache_line_size() to get cacheline size
  net: mvpp2: fix maybe-uninitialized warning
  tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
  net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card
  rtnl: fix msg size calculation in if_nlmsg_size()
  fec: Do not access unexisting register in Coldfire
  net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
  net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
  net: dsa: mv88e6xxx: Clear the PDOWN bit on setup
  net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
  bpf: make padding in bpf_tunnel_key explicit
  ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
  bnxt_en: Fix ethtool -a reporting.
  bnxt_en: Fix typo in bnxt_hwrm_set_pause_common().
  bnxt_en: Implement proper firmware message padding.
  ...

8 years agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 2 Apr 2016 00:57:13 +0000 (19:57 -0500)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "A handful of const updates for reset ops and a couple fixes to the
  newly introduced IPQ4019 clock driver"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll
  clk: qcom: ipq4019: switch remaining defines to enums
  clk: qcom: Make reset_control_ops const
  clk: tegra: Make reset_control_ops const
  clk: sunxi: Make reset_control_ops const
  clk: atlas7: Make reset_control_ops const
  clk: rockchip: Make reset_control_ops const
  clk: mmp: Make reset_control_ops const
  clk: mediatek: Make reset_control_ops const

8 years agoMerge tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Sat, 2 Apr 2016 00:52:10 +0000 (19:52 -0500)]
Merge tag 'pm+acpi-4.6-rc2' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fix from Rafael J. Wysocki:
 "Just one fix for a nasty boot failure on some systems based on Intel
  Skylake that shipped with broken firmware where enabling
  hardware-coordinated P-states management (HWP) causes a faulty
  interrupt handler in SMM to be invoked and crash the system (Srinivas
  Pandruvada)"

* tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI / processor: Request native thermal interrupt handling via _OSC

8 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Sat, 2 Apr 2016 00:31:19 +0000 (19:31 -0500)]
Merge branch 'akpm' (patches from Andrew)

Merge fixes from Andrew Morton:
 "11 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  .mailmap: add Christophe Ricard
  Make CONFIG_FHANDLE default y
  mm/page_isolation.c: fix the function comments
  oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head
  mm/page_isolation: fix tracepoint to mirror check function behavior
  mm/rmap: batched invalidations should use existing api
  x86/mm: TLB_REMOTE_SEND_IPI should count pages
  mm: fix invalid node in alloc_migrate_target()
  include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()
  mm, kasan: fix compilation for CONFIG_SLAB
  MAINTAINERS: orangefs mailing list is subscribers-only

8 years agoMerge branch 'acpi-processor'
Rafael J. Wysocki [Fri, 1 Apr 2016 23:17:36 +0000 (01:17 +0200)]
Merge branch 'acpi-processor'

* acpi-processor:
  ACPI / processor: Request native thermal interrupt handling via _OSC

8 years agoMerge branch 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
Linus Torvalds [Fri, 1 Apr 2016 23:08:34 +0000 (18:08 -0500)]
Merge branch 'for-linus-4.6' of git://git./linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "This has a few fixes Dave Sterba had queued up.  These are all pretty
  small, but since they were tested I decided against waiting for more"

* 'for-linus-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: transaction_kthread() is not freezable
  btrfs: cleaner_kthread() doesn't need explicit freeze
  btrfs: do not write corrupted metadata blocks to disk
  btrfs: csum_tree_block: return proper errno value

8 years agoMerge tag 'for-linus' of git://github.com/martinbrandenburg/linux
Linus Torvalds [Fri, 1 Apr 2016 22:17:32 +0000 (17:17 -0500)]
Merge tag 'for-linus' of git://github.com/martinbrandenburg/linux

Pull OrangeFS fixes from Martin Brandenburg:
 "Two bugfixes for OrangeFS.

  One is a reference counting bug and the other is a typo in client
  minimum version"

* tag 'for-linus' of git://github.com/martinbrandenburg/linux:
  orangefs: minimum userspace version is 2.9.3
  orangefs: don't put readdir slot twice

8 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 1 Apr 2016 22:15:51 +0000 (17:15 -0500)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:

 - fix oops when patching in alternative sequences on big-endian CPUs

 - reconcile asm/perf_event.h after merge window fallout with KVM ARM

 - defconfig updates

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: defconfig: updates for 4.6
  arm64: perf: Move PMU register related defines to asm/perf_event.h
  arm64: opcodes.h: Add arm big-endian config options before including arm header

8 years agoMerge tag 'sound-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 1 Apr 2016 22:13:23 +0000 (17:13 -0500)]
Merge tag 'sound-4.6-rc2' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes:

   - a fix in ALSA timer core to avoid possible BUG() trigger
   - a fix in ALSA timer core 32bit compat layer
   - a few HD-audio quirks for ASUS and HP machines
   - AMD HD-audio HDMI controller quirks
   - fixes of USB-audio double-free at some error paths
   - a fix for memory leak in DICE driver at hotunplug"

* tag 'sound-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: timer: Use mod_timer() for rearming the system timer
  ALSA: hda - fix front mic problem for a HP desktop
  ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call
  ALSA: hda: add AMD Polaris-10/11 AZ PCI IDs with proper driver caps
  ALSA: dice: fix memory leak when unplugging
  ALSA: hda - Apply fix for white noise on Asus N550JV, too
  ALSA: hda - Fix white noise on Asus N750JV headphone
  ALSA: hda - Asus N750JV external subwoofer fixup
  ALSA: timer: fix gparams ioctl compatibility for different architectures

8 years ago.mailmap: add Christophe Ricard
Christophe Ricard [Fri, 1 Apr 2016 21:31:42 +0000 (14:31 -0700)]
.mailmap: add Christophe Ricard

Different computers had different settings in the mail client.  Some
contributions appear as Christophe Ricard, others as Christophe RICARD.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMake CONFIG_FHANDLE default y
Andi Kleen [Fri, 1 Apr 2016 21:31:40 +0000 (14:31 -0700)]
Make CONFIG_FHANDLE default y

Newer Fedora and OpenSUSE didn't boot with my standard configuration.
It took me some time to figure out why, in fact I had to write a script
to try different config options systematically.

The problem is that something (systemd) in dracut depends on
CONFIG_FHANDLE, which adds open by file handle syscalls.

While it is set in defconfigs it is very easy to miss when updating
older configs because it is not default y.

Make it default y and also depend on EXPERT, as dracut use is likely
widespread.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm/page_isolation.c: fix the function comments
Neil Zhang [Fri, 1 Apr 2016 21:31:37 +0000 (14:31 -0700)]
mm/page_isolation.c: fix the function comments

Commit fea85cff11de ("mm/page_isolation.c: return last tested pfn rather
than failure indicator") changed the meaning of the return value.  Let's
change the function comments as well.

Signed-off-by: Neil Zhang <neilzhang1123@hotmail.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agooom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head
Michal Hocko [Fri, 1 Apr 2016 21:31:34 +0000 (14:31 -0700)]
oom, oom_reaper: do not enqueue task if it is on the oom_reaper_list head

Commit bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using
simpler way") has simplified the check for tasks already enqueued for
the oom reaper by checking tsk->oom_reaper_list != NULL.  This check is
not sufficient because the tsk might be the head of the queue without
any other tasks queued and then we would simply lockup looping on the
same task.  Fix the condition by checking for the head as well.

Fixes: bb29902a7515 ("oom, oom_reaper: protect oom_reaper_list using simpler way")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm/page_isolation: fix tracepoint to mirror check function behavior
Lucas Stach [Fri, 1 Apr 2016 21:31:32 +0000 (14:31 -0700)]
mm/page_isolation: fix tracepoint to mirror check function behavior

Page isolation has not failed if the fin pfn extends beyond the end pfn
and test_pages_isolated checks this correctly.  Fix the tracepoint to
report the same result as the actual check function.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <js1304@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm/rmap: batched invalidations should use existing api
Nadav Amit [Fri, 1 Apr 2016 21:31:26 +0000 (14:31 -0700)]
mm/rmap: batched invalidations should use existing api

The recently introduced batched invalidations mechanism uses its own
mechanism for shootdown.  However, it does wrong accounting of
interrupts (e.g., inc_irq_stat is called for local invalidations),
trace-points (e.g., TLB_REMOTE_SHOOTDOWN for local invalidations) and
may break some platforms as it bypasses the invalidation mechanisms of
Xen and SGI UV.

This patch reuses the existing TLB flushing mechnaisms instead.  We use
NULL as mm to indicate a global invalidation is required.

Fixes 72b252aed506b8 ("mm: send one IPI per CPU to TLB flush all entries after unmapping pages")
Signed-off-by: Nadav Amit <namit@vmware.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agox86/mm: TLB_REMOTE_SEND_IPI should count pages
Nadav Amit [Fri, 1 Apr 2016 21:31:23 +0000 (14:31 -0700)]
x86/mm: TLB_REMOTE_SEND_IPI should count pages

TLB_REMOTE_SEND_IPI was recently introduced, but it counts bytes instead
of pages.  In addition, it does not report correctly the case in which
flush_tlb_page flushes a page.  Fix it to be consistent with other TLB
counters.

Fixes: 5b74283ab251b9d ("x86, mm: trace when an IPI is about to be sent")
Signed-off-by: Nadav Amit <namit@vmware.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm: fix invalid node in alloc_migrate_target()
Xishi Qiu [Fri, 1 Apr 2016 21:31:20 +0000 (14:31 -0700)]
mm: fix invalid node in alloc_migrate_target()

It is incorrect to use next_node to find a target node, it will return
MAX_NUMNODES or invalid node.  This will lead to crash in buddy system
allocation.

Fixes: c8721bbbdd36 ("mm: memory-hotplug: enable memory hotplug to handle hugepage")
Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: "Laura Abbott" <lauraa@codeaurora.org>
Cc: Hui Zhu <zhuhui@xiaomi.com>
Cc: Wang Xiaoqiang <wangxq10@lzu.edu.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoinclude/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()
Chen Gang [Fri, 1 Apr 2016 21:31:17 +0000 (14:31 -0700)]
include/linux/huge_mm.h: return NULL instead of false for pmd_trans_huge_lock()

The return value of pmd_trans_huge_lock() is a pointer, not a boolean
value, so use NULL instead of false as the return value.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agomm, kasan: fix compilation for CONFIG_SLAB
Alexander Potapenko [Fri, 1 Apr 2016 21:31:15 +0000 (14:31 -0700)]
mm, kasan: fix compilation for CONFIG_SLAB

Add the missing argument to set_track().

Fixes: cd11016e5f52 ("mm, kasan: stackdepot implementation. Enable stackdepot for SLAB")
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <adech.fo@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Konstantin Serebryany <kcc@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agoMAINTAINERS: orangefs mailing list is subscribers-only
Joe Perches [Fri, 1 Apr 2016 21:31:12 +0000 (14:31 -0700)]
MAINTAINERS: orangefs mailing list is subscribers-only

So update MAINTAINERS to say so.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
8 years agonet: mvneta: fix changing MTU when using per-cpu processing
Marcin Wojtas [Fri, 1 Apr 2016 13:21:18 +0000 (15:21 +0200)]
net: mvneta: fix changing MTU when using per-cpu processing

After enabling per-cpu processing it appeared that under heavy load
changing MTU can result in blocking all port's interrupts and
transmitting data is not possible after the change.

This commit fixes above issue by disabling percpu interrupts for the
time, when TXQs and RXQs are reconfigured.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'stmmac-fixes'
David S. Miller [Fri, 1 Apr 2016 18:38:59 +0000 (14:38 -0400)]
Merge branch 'stmmac-fixes'

Giuseppe Cavallaro says:

====================
stmmac MDIO and normal descr fixes

This patch series is to fix the problems below and recently debugged
in this mailing list:

o to fix a problem for the HW where the normal descriptor
o to fix the mdio registration according to the different
  platform configurations

I am resending all the patches again: built on top of net.git repo.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agostmmac: fix MDIO settings
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:16 +0000 (09:07 +0200)]
stmmac: fix MDIO settings

Initially the phy_bus_name was added to manipulate the
driver name but it was recently just used to manage the
fixed-link and then to take some decision at run-time.
So the patch uses the is_pseudo_fixed_link and removes
the phy_bus_name variable not necessary anymore.

The driver can manage the mdio registration by using phy-handle,
dwmac-mdio and own parameter e.g. snps,phy-addr.
This patch takes care about all these possible configurations
and fixes the mdio registration in case of there is a real
transceiver or a switch (that needs to be managed by using
fixed-link).

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Tested-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Phil Reid <preid@electromag.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoRevert "stmmac: Fix 'eth0: No PHY found' regression"
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:15 +0000 (09:07 +0200)]
Revert "stmmac: Fix 'eth0: No PHY found' regression"

This reverts commit 88f8b1bb41c6208f81b6a480244533ded7b59493.
due to problems on GeekBox and Banana Pi M1 board when
connected to a real transceiver instead of a switch via
fixed-link.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Gabriel Fernandez <gabriel.fernandez@linaro.org>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Frank Schäfer <fschaefer.oss@googlemail.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agostmmac: fix TX normal DESC
Giuseppe CAVALLARO [Fri, 1 Apr 2016 07:07:14 +0000 (09:07 +0200)]
stmmac: fix TX normal DESC

This patch fixs a regression raised when test on chips that use
the normal descriptor layout. In fact, no len bits were set for
the TDES1 and no OWN bit inside the TDES0.

Signed-off-by: Giuseppe CAVALLARO <peppe.cavallaro@st.com>
Tested-by: Andreas Färber <afaerber@suse.de>
Cc: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: mvneta: use cache_line_size() to get cacheline size
Jisheng Zhang [Fri, 1 Apr 2016 09:12:49 +0000 (17:12 +0800)]
net: mvneta: use cache_line_size() to get cacheline size

L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
to determine the cacheline size in runtime.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Suggested-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: mvpp2: use cache_line_size() to get cacheline size
Jisheng Zhang [Fri, 1 Apr 2016 09:11:05 +0000 (17:11 +0800)]
net: mvpp2: use cache_line_size() to get cacheline size

L1_CACHE_BYTES may not be the real cacheline size, use cache_line_size
to determine the cacheline size in runtime.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Suggested-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: mvpp2: fix maybe-uninitialized warning
Jisheng Zhang [Thu, 31 Mar 2016 09:01:23 +0000 (17:01 +0800)]
net: mvpp2: fix maybe-uninitialized warning

This is to fix the following maybe-uninitialized warning:

drivers/net/ethernet/marvell/mvpp2.c:6007:18: warning: 'err' may be
used uninitialized in this function [-Wmaybe-uninitialized]

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agotun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter
Daniel Borkmann [Thu, 31 Mar 2016 00:13:18 +0000 (02:13 +0200)]
tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter

Sasha Levin reported a suspicious rcu_dereference_protected() warning
found while fuzzing with trinity that is similar to this one:

  [   52.765684] net/core/filter.c:2262 suspicious rcu_dereference_protected() usage!
  [   52.765688] other info that might help us debug this:
  [   52.765695] rcu_scheduler_active = 1, debug_locks = 1
  [   52.765701] 1 lock held by a.out/1525:
  [   52.765704]  #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff816a64b7>] rtnl_lock+0x17/0x20
  [   52.765721] stack backtrace:
  [   52.765728] CPU: 1 PID: 1525 Comm: a.out Not tainted 4.5.0+ #264
  [...]
  [   52.765768] Call Trace:
  [   52.765775]  [<ffffffff813e488d>] dump_stack+0x85/0xc8
  [   52.765784]  [<ffffffff810f2fa5>] lockdep_rcu_suspicious+0xd5/0x110
  [   52.765792]  [<ffffffff816afdc2>] sk_detach_filter+0x82/0x90
  [   52.765801]  [<ffffffffa0883425>] tun_detach_filter+0x35/0x90 [tun]
  [   52.765810]  [<ffffffffa0884ed4>] __tun_chr_ioctl+0x354/0x1130 [tun]
  [   52.765818]  [<ffffffff8136fed0>] ? selinux_file_ioctl+0x130/0x210
  [   52.765827]  [<ffffffffa0885ce3>] tun_chr_ioctl+0x13/0x20 [tun]
  [   52.765834]  [<ffffffff81260ea6>] do_vfs_ioctl+0x96/0x690
  [   52.765843]  [<ffffffff81364af3>] ? security_file_ioctl+0x43/0x60
  [   52.765850]  [<ffffffff81261519>] SyS_ioctl+0x79/0x90
  [   52.765858]  [<ffffffff81003ba2>] do_syscall_64+0x62/0x140
  [   52.765866]  [<ffffffff817d563f>] entry_SYSCALL64_slow_path+0x25/0x25

Same can be triggered with PROVE_RCU (+ PROVE_RCU_REPEATEDLY) enabled
from tun_attach_filter() when user space calls ioctl(tun_fd, TUN{ATTACH,
DETACH}FILTER, ...) for adding/removing a BPF filter on tap devices.

Since the fix in f91ff5b9ff52 ("net: sk_{detach|attach}_filter() rcu
fixes") sk_attach_filter()/sk_detach_filter() now dereferences the
filter with rcu_dereference_protected(), checking whether socket lock
is held in control path.

Since its introduction in 994051625981 ("tun: socket filter support"),
tap filters are managed under RTNL lock from __tun_chr_ioctl(). Thus the
sock_owned_by_user(sk) doesn't apply in this specific case and therefore
triggers the false positive.

Extend the BPF API with __sk_attach_filter()/__sk_detach_filter() pair
that is used by tap filters and pass in lockdep_rtnl_is_held() for the
rcu_dereference_protected() checks instead.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 1 Apr 2016 12:21:18 +0000 (07:21 -0500)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "Nothing too crazy in here: a bunch of AMD fixes/quirks, two msm fixes,
  some rockchip fixes, and a udl warning fix, along with one locking fix
  for displayport that seems to fix some dodgy monitors"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/udl: Use unlocked gem unreferencing
  drm/dp: move hw_mutex up the call stack
  drm/amdgpu: Don't move pinned BOs
  drm/radeon: Don't move pinned BOs
  drm/radeon: add a dpm quirk for all R7 370 parts
  drm/radeon: add another R7 370 quirk
  drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
  drm/rockchip: vop: Fix vop crtc cleanup
  drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
  drm/rockchip: vop: Disable planes when disabling CRTC
  drm/rockchip: vop: Don't reject empty modesets
  drm/rockchip: cancel pending vblanks on close
  drm/rockchip: vop: fix crtc size in plane check
  drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
  drm/amd: Beef up ACP Kconfig menu text
  drm/msm: fix typo in the !COMMON_CLK case
  drm/msm: fix bug after preclose removal

8 years agoMerge tag 'powerpc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 1 Apr 2016 12:18:27 +0000 (07:18 -0500)]
Merge tag 'powerpc-4.6-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 - Fixup preempt underflow with huge pages from Sebastian Siewior
 - Fix altivec SPR not being saved from Oliver O'Halloran
 - Correct used_vsr comment from Simon Guo

* tag 'powerpc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc: Correct used_vsr comment
  powerpc/process: Fix altivec SPR not being saved
  powerpc/mm: Fixup preempt underflow with huge pages

8 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 1 Apr 2016 12:15:54 +0000 (07:15 -0500)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 fixes from Martin Schwidefsky:
 - A proper fix for the locking issue in the dasd driver
 - Wire up the new preadv2 nad pwritev2 system calls
 - Add the mark_rodata_ro function and set DEBUG_RODATA=y
 - A few more bug fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: wire up preadv2/pwritev2 syscalls
  s390/pci: PCI function group 0 is valid for clp_query_pci_fn
  s390/crypto: provide correct file mode at device register.
  s390/mm: handle PTE-mapped tail pages in fast gup
  s390: add DEBUG_RODATA support
  s390: disable postinit-readonly for now
  s390/dasd: reorder lcu and device lock
  s390/cpum_sf: Fix cpu hotplug notifier transitions
  s390/cpum_cf: Fix missing cpu hotplug notifier transition

8 years agoALSA: timer: Use mod_timer() for rearming the system timer
Takashi Iwai [Fri, 1 Apr 2016 10:28:16 +0000 (12:28 +0200)]
ALSA: timer: Use mod_timer() for rearming the system timer

ALSA system timer backend stops the timer via del_timer() without sync
and leaves del_timer_sync() at the close instead.  This is because of
the restriction by the design of ALSA timer: namely, the stop callback
may be called from the timer handler, and calling the sync shall lead
to a hangup.  However, this also triggers a kernel BUG() when the
timer is rearmed immediately after stopping without sync:
 kernel BUG at kernel/time/timer.c:966!
 Call Trace:
  <IRQ>
  [<ffffffff8239c94e>] snd_timer_s_start+0x13e/0x1a0
  [<ffffffff8239e1f4>] snd_timer_interrupt+0x504/0xec0
  [<ffffffff8122fca0>] ? debug_check_no_locks_freed+0x290/0x290
  [<ffffffff8239ec64>] snd_timer_s_function+0xb4/0x120
  [<ffffffff81296b72>] call_timer_fn+0x162/0x520
  [<ffffffff81296add>] ? call_timer_fn+0xcd/0x520
  [<ffffffff8239ebb0>] ? snd_timer_interrupt+0xec0/0xec0
  ....

It's the place where add_timer() checks the pending timer.  It's clear
that this may happen after the immediate restart without sync in our
cases.

So, the workaround here is just to use mod_timer() instead of
add_timer().  This looks like a band-aid fix, but it's a right move,
as snd_timer_interrupt() takes care of the continuous rearm of timer.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
8 years agos390: wire up preadv2/pwritev2 syscalls
Heiko Carstens [Mon, 21 Mar 2016 12:48:43 +0000 (13:48 +0100)]
s390: wire up preadv2/pwritev2 syscalls

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
8 years agos390/pci: PCI function group 0 is valid for clp_query_pci_fn
Pierre Morel [Wed, 16 Mar 2016 12:56:35 +0000 (13:56 +0100)]
s390/pci: PCI function group 0 is valid for clp_query_pci_fn

The PCI function group 0 is a valid function group,
it is wrong to reject it.

Let's accept PCI function group 0.

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
8 years agoALSA: hda - fix front mic problem for a HP desktop
Hui Wang [Fri, 1 Apr 2016 03:00:15 +0000 (11:00 +0800)]
ALSA: hda - fix front mic problem for a HP desktop

The front mic jack (pink color) can't detect any plug or unplug. After
applying this fix, both detecting function and recording function
work well.

BugLink: https://bugs.launchpad.net/bugs/1564712
Cc: stable@vger.kernel.org
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
8 years agodrm/udl: Use unlocked gem unreferencing
Daniel Vetter [Wed, 30 Mar 2016 09:40:43 +0000 (11:40 +0200)]
drm/udl: Use unlocked gem unreferencing

For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with

commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Oct 15 09:36:25 2015 +0200

    drm/gem: Check locking in drm_gem_object_unreference

Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
8 years agodrm/dp: move hw_mutex up the call stack
Rob Clark [Thu, 25 Feb 2016 21:15:05 +0000 (16:15 -0500)]
drm/dp: move hw_mutex up the call stack

1) don't let other threads trying to bang on aux channel interrupt the
defer timeout/logic
2) don't let other threads interrupt the i2c over aux logic

Technically, according to people who actually have the DP spec, this
should not be required.  In practice, it makes some troublesome Dell
monitor (and perhaps others) work, so probably a case of "It's compliant
if it works with windows" on the hw vendor's part..

v2: rebased to come before DPCD/AUX logging patch for easier backport
to stable branches.

Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1274157
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
8 years agoMerge branch 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kerne...
Dave Airlie [Fri, 1 Apr 2016 03:14:24 +0000 (13:14 +1000)]
Merge branch 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes

bunch of rockchip fixes.

* 'drm-rockchip-next-fixes-2016-03-28' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: dw_hdmi: Don't call platform_set_drvdata()
  drm/rockchip: vop: Fix vop crtc cleanup
  drm/rockchip: dw_hdmi: Call drm_encoder_cleanup() in error path
  drm/rockchip: vop: Disable planes when disabling CRTC
  drm/rockchip: vop: Don't reject empty modesets
  drm/rockchip: cancel pending vblanks on close
  drm/rockchip: vop: fix crtc size in plane check

8 years agoMerge branch 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux...
Dave Airlie [Fri, 1 Apr 2016 03:14:10 +0000 (13:14 +1000)]
Merge branch 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux into drm-fixes

two minor msm fixes.

* 'msm-fixes-4.6-rc1' of git://people.freedesktop.org/~robclark/linux:
  drm/msm: fix typo in the !COMMON_CLK case
  drm/msm: fix bug after preclose removal

8 years agoMerge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 1 Apr 2016 03:13:34 +0000 (13:13 +1000)]
Merge branch 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Just a few fixes for 4.6 this week:
- Add some SI DPM quirks
- Improve the ACP Kconfig text
- Additional BO pinning checks

* 'drm-next-4.6' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: Don't move pinned BOs
  drm/radeon: Don't move pinned BOs
  drm/radeon: add a dpm quirk for all R7 370 parts
  drm/radeon: add another R7 370 quirk
  drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
  drm/amd: Beef up ACP Kconfig menu text

8 years agonet: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card
Daniele Palmas [Thu, 31 Mar 2016 13:16:47 +0000 (15:16 +0200)]
net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card

Telit LE910 V2 is a mobile broadband card with no ARP capabilities:
the patch makes this device to use wwan_noarp_info struct

Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Reviewed-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agortnl: fix msg size calculation in if_nlmsg_size()
Nicolas Dichtel [Thu, 31 Mar 2016 16:10:31 +0000 (18:10 +0200)]
rtnl: fix msg size calculation in if_nlmsg_size()

Size of the attribute IFLA_PHYS_PORT_NAME was missing.

Fixes: db24a9044ee1 ("net: add support for phys_port_name")
CC: David Ahern <dsahern@gmail.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agofec: Do not access unexisting register in Coldfire
Fabio Estevam [Thu, 31 Mar 2016 15:05:17 +0000 (12:05 -0300)]
fec: Do not access unexisting register in Coldfire

Commit 55cd48c821de ("net: fec: stop the "rcv is not +last, " error
messages") introduces a write to a register that does not exist in
Coldfire.

Move the FEC_FTRL register access inside the FEC_QUIRK_HAS_RACC 'if' block,
so that we guarantee it will not be used on Coldfire CPUs.

Reported-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
Jisheng Zhang [Wed, 30 Mar 2016 11:55:21 +0000 (19:55 +0800)]
net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES

The mvneta is also used in some Marvell berlin family SoCs which may
have 64bytes cacheline size. Replace the MVNETA_CPU_D_CACHE_LINE_SIZE
usage with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
Jisheng Zhang [Wed, 30 Mar 2016 11:53:41 +0000 (19:53 +0800)]
net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES

The mvpp2 ip maybe used in SoCs which may have have 64bytes cacheline
size. Replace the MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: dsa: mv88e6xxx: Clear the PDOWN bit on setup
Patrick Uiterwijk [Wed, 30 Mar 2016 01:39:41 +0000 (01:39 +0000)]
net: dsa: mv88e6xxx: Clear the PDOWN bit on setup

Some of the vendor-specific bootloaders set up this part
of the initialization for us, so this was never added.
However, since upstream bootloaders don't initialize the
chip specifically, they leave the fiber MII's PDOWN flag
set, which means that the CPU port doesn't connect.

This patch checks whether this flag has been clear prior
by something else, and if not make us clear it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agonet: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
Patrick Uiterwijk [Wed, 30 Mar 2016 01:39:40 +0000 (01:39 +0000)]
net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}

Add versions of the phy_page_read and _write functions to
be used in a context where the SMI mutex is held.

Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
8 years agoALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream()...
Vladis Dronov [Thu, 31 Mar 2016 16:05:43 +0000 (12:05 -0400)]
ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call

create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and
create_uaxx_quirk() functions allocate the audioformat object by themselves
and free it upon error before returning. However, once the object is linked
to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be
double-freed, eventually resulting in a memory corruption.

This patch fixes these failures in the error paths by unlinking the audioformat
object before freeing it.

Based on a patch by Takashi Iwai <tiwai@suse.de>

[Note for stable backports:
 this patch requires the commit 902eb7fd1e4a ('ALSA: usb-audio: Minor
 code cleanup in create_fixed_stream_quirk()')]

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1283358
Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: <stable@vger.kernel.org> # see the note above
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
8 years agoorangefs: minimum userspace version is 2.9.3
Martin Brandenburg [Wed, 30 Mar 2016 20:18:43 +0000 (16:18 -0400)]
orangefs: minimum userspace version is 2.9.3

Version 2.9.4 isn't even released yet.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
8 years agoorangefs: don't put readdir slot twice
Martin Brandenburg [Mon, 28 Mar 2016 21:18:27 +0000 (17:18 -0400)]
orangefs: don't put readdir slot twice

This was quite an oversight. After a readdir, the module could not be
unloaded, the number of slots is wrong, and memory near the slot bitmap
is possibly corrupt. Oops.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
8 years agoMerge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net...
David S. Miller [Thu, 31 Mar 2016 15:40:16 +0000 (11:40 -0400)]
Merge branch '10GbE' of git://git./linux/kernel/git/jkirsher/net-queue

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-03-29

This series contains fixes to ixgbe and ixgbevf.

Tushar fixes an issue which was introduced with an earlier commit, where
hardware register RAR0 default MAC address does not get set properly.

Alex fixes two issues, first being the VXLAN port number should be stored
in network order instead of in host order.  The second fix corrects the ATR
code to handle IPv6 extension headers.  The issue was ATR code was assuming
that it would be able to use tcp_hdr for every TCP frame that came through,
but that is not the case, which resulted in bad filters being setup.

Mark fixes a use of usleep_range() to udelay() in the case where a lock
is being held.

Stefan fixes the offline self tests where ndo_stop() should be used instead
of ndo_close(), which causes IFF_UP to be cleared and interface routes get
removed.

Emil fixes the error case where we need to return an error when a MAC
address change is rejected by the PF.  This helps prevent the user from
modifying the MAC address when the operation is not permitted.

Sridhar provides three fixes for ixgbe, all dealing with traffic class
offload handling.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>