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2016-09-30arc: Add "model" properly in device tree description of all boardsAlexey Brodkin
As it was discussed quite some time ago (see https://lkml.org/lkml/2015/11/5/862) it's a good practice to add "model" property in .dts. Moreover as per ePAPR "model" property is required and should look like "manufacturer,model" so we do here. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Jonas Gorski <jonas.gorski@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Rob Herring <robh@kernel.org> Cc: Christian Ruppert <christian.ruppert@alitech.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-09-30netfilter: xt_hashlimit: Fix link error in 32bit arch because of 64bit divisionVishwanath Pai
Division of 64bit integers will cause linker error undefined reference to `__udivdi3'. Fix this by replacing divisions with div64_64 Fixes: 11d5f15723c9 ("netfilter: xt_hashlimit: Create revision 2 to ...") Signed-off-by: Vishwanath Pai <vpai@akamai.com> Acked-by: Maciej Żenczykowski <maze@google.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-09-30netfilter: accommodate different kconfig in nf_set_hooks_headAaron Conole
When CONFIG_NETFILTER_INGRESS is unset (or no), we need to handle the request for registration properly by dropping the hook. This releases the entry during the set. Fixes: e3b37f11e6e4 ("netfilter: replace list_head with single linked list") Signed-off-by: Aaron Conole <aconole@bytheb.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-09-30netfilter: Fix potential null pointer dereferenceAaron Conole
It's possible for nf_hook_entry_head to return NULL. If two nf_unregister_net_hook calls happen simultaneously with a single hook entry in the list, both will enter the nf_hook_mutex critical section. The first will successfully delete the head, but the second will see this NULL pointer and attempt to dereference. This fix ensures that no null pointer dereference could occur when such a condition happens. Fixes: e3b37f11e6e4 ("netfilter: replace list_head with single linked list") Signed-off-by: Aaron Conole <aconole@bytheb.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-09-30MAINTAINERS: Switch to kernel.org email address for Javi MerinoJavi Merino
Change my email address to my kernel.org account instead of the ARM one. Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-09-30Merge tag 'asoc-v4.9' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v4.9 Apart from the cleanups done by Morimoto-san this has very much been a driver focused release with very little generic change: - A big factoring out of the simple-card code to allow it to be shared more with the rcar generic card from Kuninori Morimoto. - Removal of some operations duplicated on the CODEC level, again by Kuninori Morimoto. - Lots more machine support for x86 systems. - New drivers for Nuvoton NAU88C10, Realtek RT5660 and RT5663.
2016-09-30Merge remote-tracking branches 'spi/topic/ti-qspi', 'spi/topic/tools', ↵Mark Brown
'spi/topic/txx9' and 'spi/topic/xlp' into spi-next
2016-09-30Merge remote-tracking branches 'spi/topic/rspi', 'spi/topic/sc18is602', ↵Mark Brown
'spi/topic/sh-msiof', 'spi/topic/spidev-test' and 'spi/topic/st-ssc4' into spi-next
2016-09-30Merge remote-tracking branches 'spi/topic/octeon', 'spi/topic/pic32-sqi', ↵Mark Brown
'spi/topic/pxa2xx' and 'spi/topic/qup' into spi-next
2016-09-30Merge remote-tracking branches 'spi/topic/fsl-espi', 'spi/topic/imx', ↵Mark Brown
'spi/topic/jcore', 'spi/topic/loopback' and 'spi/topic/meson' into spi-next
2016-09-30Merge remote-tracking branches 'spi/topic/bcm', 'spi/topic/dw' and ↵Mark Brown
'spi/topic/fsl-dspi' into spi-next
2016-09-30Merge remote-tracking branch 'spi/topic/dma' into spi-nextMark Brown
2016-09-30Merge remote-tracking branch 'spi/topic/core' into spi-nextMark Brown
2016-09-30Merge remote-tracking branch 'spi/fix/spidev' into spi-linusMark Brown
2016-09-30Merge remote-tracking branch 'regulator/topic/tps80031' into regulator-nextMark Brown
2016-09-30Merge remote-tracking branches 'regulator/topic/of', ↵Mark Brown
'regulator/topic/pv88080', 'regulator/topic/rk808', 'regulator/topic/set-voltage' and 'regulator/topic/tps65218' into regulator-next
2016-09-30Merge remote-tracking branches 'regulator/topic/bulk', ↵Mark Brown
'regulator/topic/dbx500', 'regulator/topic/hi6421', 'regulator/topic/load' and 'regulator/topic/ltc3676' into regulator-next
2016-09-30Merge remote-tracking branch 'regulator/fix/tps65910' into regulator-linusMark Brown
2016-09-30gpio: stmpe: use BIT() macroLinus Walleij
Avoid custom (1 << bits) shifting by consequently using the BIT() macro from <linux/bitops.h>. Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-30gpio: stmpe: forbid unused lines to be mapped as IRQsLinus Walleij
Exploit the new mechanism for masking off disallowed IRQs added by Mika Westerberg to properly manage the STMPE "norequest mask" to disallow also mapping said lines as IRQs. Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-09-30rxrpc: Fix the call timer handlingDavid Howells
The call timer's concept of a call timeout (of which there are three) that is inactive is that it is the timeout has the same expiration time as the call expiration timeout (the expiration timer is never inactive). However, I'm not resetting the timeouts when they expire, leading to repeated processing of expired timeouts when other timeout events occur. Fix this by: (1) Move the timer expiry detection into rxrpc_set_timer() inside the locked section. This means that if a timeout is set that will expire immediately, we deal with it immediately. (2) If a timeout is at or before now then it has expired. When an expiry is detected, an event is raised, the timeout is automatically inactivated and the event processor is queued. (3) If a timeout is at or after the expiry timeout then it is inactive. Inactive timeouts do not contribute to the timer setting. (4) The call timer callback can now just call rxrpc_set_timer() to handle things. (5) The call processor work function now checks the event flags rather than checking the timeouts directly. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30rxrpc: Keep the call timeouts as ktimes rather than jiffiesDavid Howells
Keep that call timeouts as ktimes rather than jiffies so that they can be expressed as functions of RTT. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30rxrpc: Remove error from struct rxrpc_skb_priv as it is unusedDavid Howells
Remove error from struct rxrpc_skb_priv as it is no longer used. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30rxrpc: The offset field in struct rxrpc_skb_priv is unnecessaryDavid Howells
The offset field in struct rxrpc_skb_priv is unnecessary as the value can always be calculated. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30rxrpc: Reduce ssthresh to peer's receive windowDavid Howells
When we receive an ACK from the peer that tells us what the peer's receive window (rwind) is, we should reduce ssthresh to rwind if rwind is smaller than ssthresh. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30rxrpc: Switch to Congestion Avoidance mode at cwnd==ssthreshDavid Howells
Switch to Congestion Avoidance mode at cwnd == ssthresh rather than relying on cwnd getting incremented beyond ssthresh and the window size, the mode being shifted and then cwnd being corrected. We need to make sure we switch into CA mode so that we stop marking every packet for ACK. Signed-off-by: David Howells <dhowells@redhat.com>
2016-09-30mac80211: Move reorder-sensitive TX handlers to after TXQ dequeueToke Høiland-Jørgensen
The TXQ intermediate queues can cause packet reordering when more than one flow is active to a single station. Since some of the wifi-specific packet handling (notably sequence number and encryption handling) is sensitive to re-ordering, things break if they are applied before the TXQ. This splits up the TX handlers and fast_xmit logic into two parts: An early part and a late part. The former is applied before TXQ enqueue, and the latter after dequeue. The non-TXQ path just applies both parts at once. Because fragments shouldn't be split up or reordered, the fragmentation handler is run after dequeue. Any fragments are then kept in the TXQ and on subsequent dequeues they take precedence over dequeueing from the FQ structure. This approach avoids having to scatter special cases all over the place for when TXQ is enabled, at the cost of making the fast_xmit and TX handler code slightly more complex. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> [fix a few code-style nits, make ieee80211_xmit_fast_finish void, remove a useless txq->sta check] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30x86/entry/64: Fix context tracking state warning when load_gs_index failsWanpeng Li
This warning: WARNING: CPU: 0 PID: 3331 at arch/x86/entry/common.c:45 enter_from_user_mode+0x32/0x50 CPU: 0 PID: 3331 Comm: ldt_gdt_64 Not tainted 4.8.0-rc7+ #13 Call Trace: dump_stack+0x99/0xd0 __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 enter_from_user_mode+0x32/0x50 error_entry+0x6d/0xc0 ? general_protection+0x12/0x30 ? native_load_gs_index+0xd/0x20 ? do_set_thread_area+0x19c/0x1f0 SyS_set_thread_area+0x24/0x30 do_int80_syscall_32+0x7c/0x220 entry_INT80_compat+0x38/0x50 ... can be reproduced by running the GS testcase of the ldt_gdt test unit in the x86 selftests. do_int80_syscall_32() will call enter_form_user_mode() to convert context tracking state from user state to kernel state. The load_gs_index() call can fail with user gsbase, gsbase will be fixed up and proceed if this happen. However, enter_from_user_mode() will be called again in the fixed up path though it is context tracking kernel state currently. This patch fixes it by just fixing up gsbase and telling lockdep that IRQs are off once load_gs_index() failed with user gsbase. Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1475197266-3440-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-30x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUIDAndy Lutomirski
Otherwise arch_task_struct_size == 0 and we die. While we're at it, set X86_FEATURE_ALWAYS, too. Reported-by: David Saggiorato <david@saggiorato.net> Tested-by: David Saggiorato <david@saggiorato.net> Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Fixes: aaeb5c01c5b ("x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86") Link: http://lkml.kernel.org/r/8de723afbf0811071185039f9088733188b606c9.1475103911.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-30mac80211: mesh: decrease max driftPedersen, Thomas
The old value was 30ms, which means mesh sync will treat any value below as merely TSF drift. This isn't really reasonable (typical drift is < 10us/s) since people probably want to adjust TSF in smaller increments (for ie. beacon collision avoidance) without mesh sync fighting back. Change max drift adjustment to 0.8ms, so manual TSF adjustments can be made in 1ms increments, with some margin. Signed-off-by: Thomas Pedersen <twp@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: add offset_tsf driver op and use it for meshPedersen, Thomas
This allows the mesh sync (and debugfs) code to make incremental TSF adjustments, avoiding any uncertainty introduced by delay in programming absolute TSF. Signed-off-by: Thomas Pedersen <twp@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: Set lower memory limit for non-VHT devicesToke Høiland-Jørgensen
Small devices can run out of memory from queueing too many packets. If VHT is not supported by the PHY, having more than 4 MBytes of total queue in the TXQ intermediate queues is not needed, and so we can safely limit the memory usage in these cases and avoid OOM. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: Export fq memory limit information in debugfsToke Høiland-Jørgensen
Add memory limit, usage and overlimit counter to per-PHY 'aqm' debugfs file. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30fq.h: Port memory limit mechanism from fq_codelToke Høiland-Jørgensen
The reusable fairness queueing implementation (fq.h) lacks the memory usage limit that the fq_codel qdisc has. This means that small devices (e.g. WiFi routers) can run out of memory when flooded with a large number of packets. This ports the memory limit feature from fq_codel to fq.h. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: Add API to report NAN function matchAyala Beker
Provide an API to report NAN function match. Mac80211 will lookup the corresponding cookie and report the match to cfg80211. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: Implement add_nan_func and rm_nan_funcAyala Beker
Implement add/rm_nan_func functions and handle NAN function termination notifications. Handle instance_id allocation for NAN functions and implement the reconfig flow. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: implement nan_change_confAyala Beker
Implement nan_change_conf callback which allows to change current NAN configuration (master preference and dual band operation). Store the current NAN configuration in sdata, so it can be used both to provide the driver the updated configuration with changes and also it will be used in hw reconfig flows in next patches. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: Provide an API to report NAN function terminationAyala Beker
Provide a function that reports NAN DE function termination. The function may be terminated due to one of the following reasons: user request, ttl expiration or failure. If the NAN instance is tied to the owner, the notification will be sent to the socket that started the NAN interface only Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: provide a function to report a match for NANAyala Beker
Provide a function the driver can call to report a match. This will send the event to the user space. If the NAN instance is tied to the owner, the notifications will be sent to the socket that started the NAN interface only. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: allow the user space to change current NAN configurationAyala Beker
Some NAN configuration paramaters may change during the operation of the NAN device. For example, a user may want to update master preference value when the device gets plugged/unplugged to the power. Add API that allows to do so. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: add add_nan_func / del_nan_funcAyala Beker
A NAN function can be either publish, subscribe or follow up. Make all the necessary verifications and just pass the request to the driver. Allow the user space application that starts NAN to forbid any other socket to add or remove functions. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: add boilerplate code for start / stop NANAyala Beker
This code doesn't do much besides allowing to start and stop the vif. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Ayala Beker <ayala.beker@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: add start / stop NAN commandsAyala Beker
This allows user space to start/stop NAN interface. A NAN interface is like P2P device in a few aspects: it doesn't have a netdev associated to it. Add the new interface type and prevent operations that can't be executed on NAN interface like scan. Define several attributes that may be configured by user space when starting NAN functionality (master preference and dual band operation) Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30cfg80211: Add support for static WEP in the driverDavid Spinadel
Add support for drivers that implement static WEP internally, i.e. expose connection keys to the driver in connect flow and don't upload the keys after the connection. Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30mac80211: Move ieee802111_tx_dequeue() to later in tx.cToke Høiland-Jørgensen
The TXQ path restructure requires ieee80211_tx_dequeue() to call TX handlers and parts of the xmit_fast path. Move the function to later in tx.c in preparation for this. Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-09-30x86/asm: Get rid of __read_cr4_safe()Andy Lutomirski
We use __read_cr4() vs __read_cr4_safe() inconsistently. On CR4-less CPUs, all CR4 bits are effectively clear, so we can make the code simpler and more robust by making __read_cr4() always fix up faults on 32-bit kernels. This may fix some bugs on old 486-like CPUs, but I don't have any easy way to test that. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Brian Gerst <brgerst@gmail.com> Cc: Borislav Petkov <bp@alien8.de> Cc: david@saggiorato.net Link: http://lkml.kernel.org/r/ea647033d357d9ce2ad2bbde5a631045f5052fb6.1475178370.git.luto@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-30Merge branch 'x86/urgent' into x86/asmThomas Gleixner
Get the cr4 fixes so we can apply the final cleanup
2016-09-30x86/vdso: Fix building on big endian hostSegher Boessenkool
We need to call GET_LE to read hdr->e_type. Fixes: 57f90c3dfc75 ("x86/vdso: Error out if the vDSO isn't a valid DSO") Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Andy Lutomirski <luto@kernel.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: linux-next@vger.kernel.org Link: http://lkml.kernel.org/r/20160929193442.GA16617@gate.crashing.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-30x86/boot: Fix another __read_cr4() case on 486Andy Lutomirski
The condition for reading CR4 was wrong: there are some CPUs with CPUID but not CR4. Rather than trying to make the condition exact, use __read_cr4_safe(). Fixes: 18bc7bd523e0 ("x86/boot: Synchronize trampoline_cr4_features and mmu_cr4_features directly") Reported-by: david@saggiorato.net Signed-off-by: Andy Lutomirski <luto@kernel.org> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Link: http://lkml.kernel.org/r/8c453a61c4f44ab6ff43c29780ba04835234d2e5.1475178369.git.luto@kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-09-30sched/irqtime: Consolidate irqtime flushing codeFrederic Weisbecker
The code performing irqtime nsecs stats flushing to kcpustat is roughly the same for hardirq and softirq. So lets consolidate that common code. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1474849761-12678-6-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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