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2017-02-10iommu: Make iommu_device_link/unlink take a struct iommu_deviceJoerg Roedel
This makes the interface more consistent with iommu_device_sysfs_add/remove. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Add sysfs bindings for struct iommu_deviceJoerg Roedel
There is currently support for iommu sysfs bindings, but those need to be implemented in the IOMMU drivers. Add a more generic version of this by adding a struct device to struct iommu_device and use that for the sysfs bindings. Also convert the AMD and Intel IOMMU driver to make use of it. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Introduce new 'struct iommu_device'Joerg Roedel
This struct represents one hardware iommu in the iommu core code. For now it only has the iommu-ops associated with it, but that will be extended soon. The register/unregister interface is also added, as well as making use of it in the Intel and AMD IOMMU drivers. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10iommu: Rename iommu_get_instance()Joerg Roedel
Rename the function to iommu_ops_from_fwnode(), because that is what the function actually does. The new name is much more descriptive about what the function does. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-02-10time: Remove CONFIG_TIMER_STATSKees Cook
Currently CONFIG_TIMER_STATS exposes process information across namespaces: kernel/time/timer_list.c print_timer(): SEQ_printf(m, ", %s/%d", tmp, timer->start_pid); /proc/timer_list: #11: <0000000000000000>, hrtimer_wakeup, S:01, do_nanosleep, cron/2570 Given that the tracer can give the same information, this patch entirely removes CONFIG_TIMER_STATS. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: John Stultz <john.stultz@linaro.org> Cc: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: linux-doc@vger.kernel.org Cc: Lai Jiangshan <jiangshanlai@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Xing Gao <xgao01@email.wm.edu> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Jessica Frazelle <me@jessfraz.com> Cc: kernel-hardening@lists.openwall.com Cc: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Michal Marek <mmarek@suse.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Olof Johansson <olof@lixom.net> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-api@vger.kernel.org Cc: Arjan van de Ven <arjan@linux.intel.com> Link: http://lkml.kernel.org/r/20170208192659.GA32582@beast Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-02-10perf/core: Allow kernel filters on CPU eventsAlexander Shishkin
While supporting file-based address filters for CPU events requires some extra context switch handling, kernel address filters are easy, since the kernel mapping is preserved across address spaces. It is also useful as it permits tracing scheduling paths of the kernel. This patch allows setting up kernel filters for CPU events. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: Will Deacon <will.deacon@arm.com> Cc: vince@deater.net Link: http://lkml.kernel.org/r/20170126094057.13805-4-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-10kref: Implement 'struct kref' using refcount_tPeter Zijlstra
Use the refcount_t 'atomic' type to implement 'struct kref', this makes kref more robust by bringing saturation semantics. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-10refcount_t: Introduce a special purpose refcount typePeter Zijlstra
Provide refcount_t, an atomic_t like primitive built just for refcounting. It provides saturation semantics such that overflow becomes impossible and thereby 'spurious' use-after-free is avoided. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-09mtd: Add partition device node to mtd partition devicesSascha Hauer
The user visible change here is that mtd partitions get an of_node link in sysfs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-10Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/selinux ↵James Morris
into next
2017-02-09PCI/AER: Remove unused .link_reset() callbackMichael S. Tsirkin
No hardware seems to actually call .link_reset(), and no driver implements it as more than a nop stub. Drop mentions of the callback from everywhere. It's dropped from the documentation as well, but the doc really needs to be updated to reflect reality better (e.g., on PCIe, slot reset is the link reset). This will be done in a later patch. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2017-02-09sctp: add support for generating stream reconf add incoming/outgoing streams ↵Xin Long
request chunk This patch is to define Add Incoming/Outgoing Streams Request Parameter described in rfc6525 section 4.5 and 4.6. They can be in one same chunk trunk as rfc6525 section 3.1-7 describes, so make them in one function. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-09sctp: add support for generating stream reconf ssn/tsn reset request chunkXin Long
This patch is to define SSN/TSN Reset Request Parameter described in rfc6525 section 4.3. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-09sctp: drop unnecessary __packed from some stream reconf structuresXin Long
commit 85c727b59483 ("sctp: drop __packed from almost all SCTP structures") has removed __packed from almost all SCTP structures. But there still are three structures where it should be dropped. This patch is to remove it from some stream reconf structures. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-09Merge OPP material for v4.11 to satisfy dependencies.Rafael J. Wysocki
2017-02-09PM / OPP: Expose _of_get_opp_desc_node as dev_pm_opp APIDave Gerlach
Rename _of_get_opp_desc_node to dev_pm_opp_of_get_opp_desc_node and add it to include/linux/pm_opp.h to allow other drivers, such as platform OPP and cpufreq drivers, to make use of it. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-09module.h: remove extable.h include now users have migratedPaul Gortmaker
With hopefully most/all users of module.h that were looking for exception table functions moved over to the new extable.h header, we can remove the back-compat include that let us transition without introducing build regressions. Cc: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Jessica Yu <jeyu@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2017-02-09of: make of_device_make_bus_id() staticFrank Rowand
of_device_make_bus_id() was changed to non-static by commit c66012253800 ("of/device: Make of_device_make_bus_id() usable by other code") more than 6 years ago, but there are no users of it outside of platform.c. Make the function static again. Signed-off-by: Frank Rowand <frank.rowand@am.sony.com> Signed-off-by: Rob Herring <robh@kernel.org>
2017-02-09PCI: Disable MSI for HiSilicon Hip06/Hip07 Root PortsDongdong Liu
The PCIe Root Port in Hip06/Hip07 SoCs advertises an MSI capability, but it cannot generate MSIs. It can transfer MSI/MSI-X from downstream devices, but does not support MSI/MSI-X itself. Add a quirk to prevent use of MSI/MSI-X by the Root Port. [bhelgaas: changelog, sort vendor ID #define, drop device ID #define] Signed-off-by: Dongdong Liu <liudongdong3@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Gabriele Paoloni <gabriele.paoloni@huawei.com> Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
2017-02-09PM / Domains: Provide dummy governors if CONFIG_PM_GENERIC_DOMAINS=nGeert Uytterhoeven
This allows to compile-test drivers that refer to governors (always by reference) when CONFIG_PM_GENERIC_DOMAINS=n. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-08cpumask: use nr_cpumask_bits for parsing functionsTejun Heo
Commit 513e3d2d11c9 ("cpumask: always use nr_cpu_ids in formatting and parsing functions") converted both cpumask printing and parsing functions to use nr_cpu_ids instead of nr_cpumask_bits. While this was okay for the printing functions as it just picked one of the two output formats that we were alternating between depending on a kernel config, doing the same for parsing wasn't okay. nr_cpumask_bits can be either nr_cpu_ids or NR_CPUS. We can always use nr_cpu_ids but that is a variable while NR_CPUS is a constant, so it can be more efficient to use NR_CPUS when we can get away with it. Converting the printing functions to nr_cpu_ids makes sense because it affects how the masks get presented to userspace and doesn't break anything; however, using nr_cpu_ids for parsing functions can incorrectly leave the higher bits uninitialized while reading in these masks from userland. As all testing and comparison functions use nr_cpumask_bits which can be larger than nr_cpu_ids, the parsed cpumasks can erroneously yield false negative results. This made the taskstats interface incorrectly return -EINVAL even when the inputs were correct. Fix it by restoring the parse functions to use nr_cpumask_bits instead of nr_cpu_ids. Link: http://lkml.kernel.org/r/20170206182442.GB31078@htj.duckdns.org Fixes: 513e3d2d11c9 ("cpumask: always use nr_cpu_ids in formatting and parsing functions") Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Martin Steigerwald <martin.steigerwald@teamix.de> Debugged-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Cc: <stable@vger.kernel.org> [4.0+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-08mm: avoid returning VM_FAULT_RETRY from ->page_mkwrite handlersJan Kara
Some ->page_mkwrite handlers may return VM_FAULT_RETRY as its return code (GFS2 or Lustre can definitely do this). However VM_FAULT_RETRY from ->page_mkwrite is completely unhandled by the mm code and results in locking and writeably mapping the page which definitely is not what the caller wanted. Fix Lustre and block_page_mkwrite_ret() used by other filesystems (notably GFS2) to return VM_FAULT_NOPAGE instead which results in bailing out from the fault code, the CPU then retries the access, and we fault again effectively doing what the handler wanted. Link: http://lkml.kernel.org/r/20170203150729.15863-1-jack@suse.cz Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-08Merge tag 'nand/for-4.11' of github.com:linux-nand/linuxBrian Norris
From Boris: """ This pull request contains minor fixes/improvements on existing drivers: - sunxi: avoid busy-waiting for NAND events - ifc: fix ECC handling on IFC v1.0 - OX820: add explicit dependency on ARCH_OXNAS in Kconfig - core: add a new manufacture ID and fix a kernel-doc warning - fsmc: kill pdata support - lpc32xx_slc: remove unneeded NULL check """ Conflicts: include/linux/mtd/nand.h [Brian: trivial conflict in the comment section]
2017-02-08mtd: nand: Add max_bb_per_die and blocks_per_die fields to nand_chipZach Brown
The fields max_bb_per_die and blocks_per_die are useful determining the number of bad blocks a MTD needs to allocate. How they are set will depend on if the chip is ONFI, JEDEC or a full-id entry in the nand_ids table. Signed-off-by: Zach Brown <zach.brown@ni.com> Acked-by: Boris Brezillon <boris.brezillon@free-electron.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-08mtd: introduce function max_bad_blocksJeff Westfahl
If implemented, 'max_bad_blocks' returns the maximum number of bad blocks to reserve for a MTD. An implementation for NAND is coming soon. Signed-off-by: Jeff Westfahl <jeff.westfahl@ni.com> Signed-off-by: Zach Brown <zach.brown@ni.com> Acked-by: Boris Brezillon <boris.brezillon@free-electron.com> Acked-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-08nvme: support ranged discard requestsChristoph Hellwig
NVMe supports up to 256 ranges per DSM command, so wire up support for ranged discards up to that limit. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-08block: optionally merge discontiguous discard bios into a single requestChristoph Hellwig
Add a new merge strategy that merges discard bios into a request until the maximum number of discard ranges (or the maximum discard size) is reached from the plug merging code. I/O scheduler merging is not wired up yet but might also be useful, although not for fast devices like NVMe which are the only user for now. Note that for now we don't support limiting the size of each discard range, but if needed that can be added later. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-08block: enumify ELEVATOR_*_MERGEChristoph Hellwig
Switch these constants to an enum, and make let the compiler ensure that all callers of blk_try_merge and elv_merge handle all potential values. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-08net: stmmac: Remove the bus_setup function pointerLABBE Corentin
The bus_setup function pointer is not used at all, this patch remove it. Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com> Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-08perf: add qcom l2 cache perf events driverNeil Leeder
Adds perf events support for L2 cache PMU. The L2 cache PMU driver is named 'l2cache_0' and can be used with perf events to profile L2 events such as cache hits and misses on Qualcomm Technologies processors. Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Neil Leeder <nleeder@codeaurora.org> [will: minimise nesting in l2_cache_associate_cpu_with_cluster] [will: use kstrtoul for unsigned long, remove redunant .owner setting] Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-08mtd: bcm47xxsflash: use platform_(set|get)_drvdataRafał Miłecki
We have generic place & helpers for storing platform driver data so there is no reason for using custom priv pointer. This allows cleaning up struct bcma_sflash from unneeded fields. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Kalle Valo <kvalo@codeaurora.org> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2017-02-08net: introduce device min_header_lenWillem de Bruijn
The stack must not pass packets to device drivers that are shorter than the minimum link layer header length. Previously, packet sockets would drop packets smaller than or equal to dev->hard_header_len, but this has false positives. Zero length payload is used over Ethernet. Other link layer protocols support variable length headers. Support for validation of these protocols removed the min length check for all protocols. Introduce an explicit dev->min_header_len parameter and drop all packets below this value. Initially, set it to non-zero only for Ethernet and loopback. Other protocols can follow in a patch to net-next. Fixes: 9ed988cd5915 ("packet: validate variable length ll headers") Reported-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-08ARM: smccc: Update HVC comment to describe new quirk parameterWill Deacon
Commit 680a0873e193 ("arm: kernel: Add SMC structure parameter") added a new "quirk" parameter to the SMC and HVC SMCCC backends, but only updated the comment for the SMC version. This patch adds the new paramater to the comment describing the HVC version too. Signed-off-by: Will Deacon <will.deacon@arm.com>
2017-02-08irqchip/gic-v3: Remove duplicate definition of GICD_TYPER_LPISAlim Akhtar
GICD_TYPER_LPIS macro is defined twice in this file. This patch removes the duplicate entry. Fixes: f5c1434c217f ("irqchip: GICv3: rework redistributor structure") Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08irqchip/gic-v3-its: Rename MAPVI to MAPTIMarc Zyngier
Back in the days when the GICv3/v4 architecture was drafted, the command to an event to an LPI number was called MAPVI. Later on, and to avoid confusion with the GICv4 command VMAPI, it was renamed MAPTI. We've carried the old name for a long time, but it gets in the way of people reading the code in the light of the public architecture specification. Just repaint all the references and kill the old definition. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08irqchip/gic-v3-its: Drop deprecated GITS_BASER_TYPE_CPUMarc Zyngier
During the development of the GICv3/v4 architecture, it was envisaged to have a CPU table, though the use for it was never completely clear (the collection table serves that role pretty well). It ended being dropped before the specification was published, though it lived on in the driver. In order to avoid people scratching their head too much, let's do the same in the kernel. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-02-08i2c: allow specify device properties in i2c_board_infoDmitry Torokhov
With many drivers converting to using generic device properties, it is useful to provide array of device properties when instantiating new i2c client via i2c_board_info and have them automatically added to the device in question. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-02-08mfd: cros-ec: Update cros_ec_commands.h for buttons and switchesDouglas Anderson
Add the defines for the new buttons and switches connected to the CrosEC. Signed-off-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-02-08printk: introduce per-cpu safe_print seq bufferSergey Senozhatsky
This patch extends the idea of NMI per-cpu buffers to regions that may cause recursive printk() calls and possible deadlocks. Namely, printk() can't handle printk calls from schedule code or printk() calls from lock debugging code (spin_dump() for instance); because those may be called with `sem->lock' already taken or any other `critical' locks (p->pi_lock, etc.). An example of deadlock can be vprintk_emit() console_unlock() up() << raw_spin_lock_irqsave(&sem->lock, flags); wake_up_process() try_to_wake_up() ttwu_queue() ttwu_activate() activate_task() enqueue_task() enqueue_task_fair() cfs_rq_of() task_of() WARN_ON_ONCE(!entity_is_task(se)) vprintk_emit() console_trylock() down_trylock() raw_spin_lock_irqsave(&sem->lock, flags) ^^^^ deadlock and some other cases. Just like in NMI implementation, the solution uses a per-cpu `printk_func' pointer to 'redirect' printk() calls to a 'safe' callback, that store messages in a per-cpu buffer and flushes them back to logbuf buffer later. Usage example: printk() printk_safe_enter_irqsave(flags) // // any printk() call from here will endup in vprintk_safe(), // that stores messages in a special per-CPU buffer. // printk_safe_exit_irqrestore(flags) The 'redirection' mechanism, though, has been reworked, as suggested by Petr Mladek. Instead of using a per-cpu @print_func callback we now keep a per-cpu printk-context variable and call either default or nmi vprintk function depending on its value. printk_nmi_entrer/exit and printk_safe_enter/exit, thus, just set/celar corresponding bits in printk-context functions. The patch only adds printk_safe support, we don't use it yet. Link: http://lkml.kernel.org/r/20161227141611.940-4-sergey.senozhatsky@gmail.com Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Cc: Calvin Owens <calvinowens@fb.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2017-02-08printk: rename nmi.c and exported apiSergey Senozhatsky
A preparation patch for printk_safe work. No functional change. - rename nmi.c to print_safe.c - add `printk_safe' prefix to some (which used both by printk-safe and printk-nmi) of the exported functions. Link: http://lkml.kernel.org/r/20161227141611.940-3-sergey.senozhatsky@gmail.com Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jan Kara <jack@suse.cz> Cc: Tejun Heo <tj@kernel.org> Cc: Calvin Owens <calvinowens@fb.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Peter Hurley <peter@hurleysoftware.com> Cc: linux-kernel@vger.kernel.org Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Signed-off-by: Petr Mladek <pmladek@suse.com>
2017-02-08nl80211: add HT/VHT capabilities to AP parametersJohannes Berg
For the benefit of drivers that rebuild IEs in firmware, parse the IEs for HT/VHT capabilities and the respective membership selector in the (extended) supported rates. This avoids duplicating the same code into all drivers that need this information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
The conflict was an interaction between a bug fix in the netvsc driver in 'net' and an optimization of the RX path in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONXLaura Abbott
Both of these options are poorly named. The features they provide are necessary for system security and should not be considered debug only. Change the names to CONFIG_STRICT_KERNEL_RWX and CONFIG_STRICT_MODULE_RWX to better describe what these options do. Signed-off-by: Laura Abbott <labbott@redhat.com> Acked-by: Jessica Yu <jeyu@redhat.com> Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07clockevents: Add a clkevt-of mechanism like clksrc-ofDaniel Lezcano
The current code uses the CLOCKSOURCE_OF_DECLARE macro to fill the clksrc table with a t-uple (name, init_function). Unfortunately it ends up to the clockevent and the clocksource being both initialized with this macro. It is not a problem by itself but there is not a clear distinction between a clockevent and a clocksource in the code initialization path. Somebody can argue there are the same IP block and the same DT node. But conceptually from the software side, there are two distincts entities and as is they should be initialized separetely. Some drivers which do not have a clocksource end up by using the CLOCKSOURCE_OF_DECLARE macro to declare a clockevent. Another result is the fuzzy organization in the clocksource directory, where the clockevents are implemented in the same file than the clocksources or file labelled timer-something implementing a clocksource. This patch provides another macro to specifically declare a clockevent in the same way than the clocksource and gives the opportunity to write two separate drivers, one for the clocksource and another for the clockevents. Hopefully, that can help to do some housework in the directory, perhaps split the drivers in to entities, for example: - clksrc-rockchip.c - clkevt-rockchip.c Also, it gives the possibility to declare clocksources separately in the DT and then use a clocksource from IP block while while clockevents are used from another IP block. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07sctp: drop __packed from almost all SCTP structuresMarcelo Ricardo Leitner
__packed is considered harmful as it potentially generates code that doesn't perform well and its usage should be avoided as much as possible. This patch drops __packed from all SCTP structures except one, which is sctp_signed_cookie. In there it's required, as per changelog on commit 9834a2bb4970 ("[SCTP]: Fix sctp_cookie alignment in the packet."). After this patch, no alignment changes neither in x86 or x86_64 and no exceptions were noticed during testing on both archs. Code size for SCTP module also didn't change with this patch. Cc: David Miller <davem@davemloft.net> Cc: David Laight <David.Laight@ACULAB.COM> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07Merge tag 'mlx5-updates-2017-01-31' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5-updates-2017-01-31 This series includes some updates to mlx5 core and ethernet driver. We got one patch from Or to fix some static checker warnings. 2nd patche from Dan came to add the support for 128B cache line in the HCA, which will configures the hardware to use 128B alignment only on systems with 128B cache lines, otherwise it will be kept as the current default of 64B. From me three patches to support no inline copy on TX on ConnectX-5 and later HCAs. Starting with two small infrastructure changes and refactoring patches followed by two patches to add the actual support for both xmit ndo and XDP xmit routines. Last patch is a simple fix to return a mistakenly removed pointer from the SQ structure, which was remove in previous submission of mlx5 4K UAR. Saeed. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07net: add dst_pending_confirm flag to skbuffJulian Anastasov
Add new skbuff flag to allow protocols to confirm neighbour. When same struct dst_entry can be used for many different neighbours we can not use it for pending confirmations. Add sock_confirm_neigh() helper to confirm the neighbour and use it for IPv4, IPv6 and VRF before dst_neigh_output. Signed-off-by: Julian Anastasov <ja@ssi.bg> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07net: phy: bcm7xxx: Add BCM74371 PHY IDFlorian Fainelli
Add the BCM74371 PHY ID to the list of supported chips. This is a 28nm technology Gigabit PHY SoC. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07Merge tag 'samsung-drivers-soc-pmu-4.11-3' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers Pull "soc: samsung: pmu for v4.11, third round" from Krzysztof Kozłowski: 3rd round of improvements for Exynos PMU driver for v4.11: 1. Add defines in header for future patches changing the pad retention control. * tag 'samsung-drivers-soc-pmu-4.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: soc: samsung: pmu: Add register defines for pad retention control
2017-02-07net: phy: Allow pre-declaration of MDIO devicesFlorian Fainelli
Allow board support code to collect pre-declarations for MDIO devices by registering them with mdiobus_register_board_info(). SPI and I2C buses have a similar feature, we were missing this for MDIO devices, but this is particularly useful for e.g: MDIO-connected switches which need to provide their port layout (often board-specific) to a MDIO Ethernet switch driver. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>