ARM: sun7i: dt: Fix interrupt trigger types

The Allwinner A20 uses the ARM GIC as its internal interrupts controller. The
GIC can work on several interrupt triggers, and the A20 was actually setting it
up to use a rising edge as a trigger, while it was actually a level high
trigger, leading to some interrupts that would be completely ignored if the
edge was missed.

Fix this for the remaining DT nodes that slipped through.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: stable@vger.kernel.org
ARM: sunxi: dt: Change the touchscreen compatibles

Switch the device tree touchscreen compatibles to have a common pattern accross
all Allwinner SoCs. Since the touchscreen driver has not been merged yet, it
has no side effect.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
mac80211: fix sched_scan restart on recovery

In case we were not suspended, the reconfig function returns without
configuring the scheduled scan.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
mac80211: fix memory leak

In case ieee80211_prep_connection() fails to dereference
sdata->vif.chanctx_conf, the function returns and doesn't
free new_sta. fixed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
mac80211: send control port protocol frames to the VO queue

Improves reliability of wifi connections with WPA, since authentication
frames are prioritized over normal traffic and also typically exempt
from aggregation.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
netfilter: nft_reject_inet: fix unintended fall-through in switch-statatement

For IPv4 packets, we call both IPv4 and IPv6 reject.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: nft_meta: fix typo "CONFIG_NET_CLS_ROUTE"

There are two checks for CONFIG_NET_CLS_ROUTE, but the corresponding
Kconfig symbol was dropped in v2.6.39. Since the code guards access to
dst_entry.tclassid it seems CONFIG_IP_ROUTE_CLASSID should be used
instead.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: nf_nat_snmp_basic: fix duplicates in if/else branches

The solution was found by Patrick in 2.4 kernel sources.

Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Francois-Xavier Le Bail <fx.lebail@yahoo.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: nf_tables: fix nf_trace always-on with XT_TRACE=n

When using nftables with CONFIG_NETFILTER_XT_TARGET_TRACE=n, we get
lots of "TRACE: filter:output:policy:1 IN=..." warnings as several
places will leave skb->nf_trace uninitialised.

Unlike iptables tracing functionality is not conditional in nftables,
so always copy/zero nf_trace setting when nftables is enabled.

Move this into __nf_copy() helper.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: nf_tables: check if payload length is a power of 2

Add a check if payload's length is a power of 2 when selecting ops.
The fast ops were meant for well aligned loads, also this fixes a
small bug when using a length of 3 with some offsets which causes
only 1 byte to be loaded because the fast ops are chosen.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
netfilter: ctnetlink: force null nat binding on insert

Quoting Andrey Vagin:
  When a conntrack is created  by kernel, it is initialized (sets
  IPS_{DST,SRC}_NAT_DONE_BIT bits in nf_nat_setup_info) and only then it
  is added in hashes (__nf_conntrack_hash_insert), so one conntract
  can't be initialized from a few threads concurrently.

  ctnetlink can add an uninitialized conntrack (w/o
  IPS_{DST,SRC}_NAT_DONE_BIT) in hashes, then a few threads can look up
  this conntrack and start initialize it concurrently. It's dangerous,
  because BUG can be triggered from nf_nat_setup_info.

Fix this race by always setting up nat, even if no CTA_NAT_ attribute
was requested before inserting the ct into the hash table. In absence
of CTA_NAT_ attribute, a null binding is created.

This alters current behaviour: Before this patch, the first packet
matching the newly injected conntrack would be run through the nat
table since nf_nat_initialized() returns false.  IOW, this forces
ctnetlink users to specify the desired nat transformation on ct
creation time.

Thanks for Florian Westphal, this patch is based on his original
patch to address this problem, including this patch description.

Reported-By: Andrey Vagin <avagin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Florian Westphal <fw@strlen.de>
ARM: 7963/1: mm: report both sections from PMD

On 2-level page table systems, the PMD has 2 section entries. Report
these, otherwise ARM_PTDUMP will miss reporting permission changes on
odd section boundaries.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 7964/1: Detect section mismatches in thumb relocations

Add processing for normally encountered thumb relocation types so that
section mismatches will be detected.

Comment from Rusty Russell follows:

Happiest for this to go through an ARM tree, so:

Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
mtip32xx: Reduce the number of unaligned writes to 2

After several experiments, deduced the the optimal number of unaligned
writes to be 2. Changing the value accordingly.

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Sam Bradshaw <sbradshaw@micron.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
cfg80211: bugfix in regulatory user hint process

After processing hint_user, we would want to schedule the
timeout work only if we are actually waiting to CRDA. This happens
when the status is not "IGNORE" nor "ALREADY_SET".

Signed-off-by: Inbal Hacohen <Inbal.Hacohen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
spi/topcliff-pch: Fix DMA channel

bus_num might be asigned dynamically to e.g. 32766. In this case the
calculated DMA channel based on SPI bus number is bogus. Use SPI channel
number instead for calculation.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
ARM: OMAP5: PRM: Fix reboot handling

Use the correct register offset for issuing the
reset command in OMAP5. Since dev_inst is set dynamically
OMAP4 should not be affected by this change.

Signed-off-by: Vaibhav Bedia <vaibhav.bedia@gmail.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for your net tree,
they are:

* Fix nf_trace in nftables if XT_TRACE=n, from Florian Westphal.

* Don't use the fast payload operation in nf_tables if the length is
  not power of 2 or it is not aligned, from Nikolay Aleksandrov.

* Fix missing break statement the inet flavour of nft_reject, which
  results in evaluating IPv4 packets with the IPv6 evaluation routine,
  from Patrick McHardy.

* Fix wrong kconfig symbol in nft_meta to match the routing realm,
  from Paul Bolle.

* Allocate the NAT null binding when creating new conntracks via
  ctnetlink to avoid that several packets race at initializing the
  the conntrack NAT extension, original patch from Florian Westphal,
  revisited version from me.

* Fix DNAT handling in the snmp NAT helper, the same handling was being
  done for SNAT and DNAT and 2.4 already contains that fix, from
  Francois-Xavier Le Bail.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
ARM: DRA7: hwmod data: correct the sysc data for spinlock

The spinlock module's SYSCONFIG register on DRA7xx does not
support smart wakeup, and also does not have the CLKACTIVITY
field. The sysc data for spinlock module has been appropriately
fixed up to reflect the same.

Cc: Ambresh K <ambresh@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
ARM: OMAP4: hwmod: Fix SOFTRESET logic for OMAP4

Commit 313a76e (ARM: OMAP2+: hwmod: Fix SOFTRESET logic) introduced
softreset bit cleaning right after set one. It is caused L3 error for
OMAP4 ISS because ISS register write occurs when ISS reset process is in
progress. Avoid this situation by cleaning softreset bit later, when reset
process is successfully finished.

Signed-off-by: Illia Smyrnov <illia.smyrnov@globallogic.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>