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2017-02-27lib/vsprintf.c: remove %Z supportAlexey Dobriyan1-1/+1
Now that %z is standartised in C99 there is no reason to support %Z. Unlike %L it doesn't even make format strings smaller. Use BUILD_BUG_ON in a couple ATM drivers. In case anyone didn't notice lib/vsprintf.o is about half of SLUB which is in my opinion is quite an achievement. Hopefully this patch inspires someone else to trim vsprintf.c more. Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-27scripts/spelling.txt: add "comsume(r)" pattern and fix typo instancesMasahiro Yamada1-1/+1
Fix typos and add the following to the scripts/spelling.txt: comsume||consume comsumer||consumer comsuming||consuming I see some variable names with this pattern, but this commit is only touching comment blocks to avoid unexpected impact. Link: http://lkml.kernel.org/r/1481573103-11329-19-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-25Merge branch 'i2c/for-4.11' of ↵Linus Torvalds1-26/+19
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "I2C has for you two new drivers (Tegra BPMP and STM32F4), interrupt support for pca954x muxes, and a bunch of driver bugfixes and improvements. Nothing really special this cycle. A few commits have been added to my tree just recently. Those are the Tegra BPMP driver and a few straightforward bugfixes or cleanups which I prefer to have upstream rather soonish. The rest had proper linux-next exposure" * 'i2c/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (25 commits) i2c: thunderx: Replace pci_enable_msix() i2c: exynos5: fix arbitration lost handling i2c: exynos5: disable fifo-almost-empty irq signal when necessary i2c: at91: ensure state is restored after suspending i2c: bcm2835: Avoid possible NULL ptr dereference i2c: Add Tegra BPMP I2C proxy driver dt-bindings: Add Tegra186 BPMP I2C binding misc: eeprom: at24: use device_property_*() functions instead of of_get_property() i2c: mux: pca954x: Add interrupt controller support dt: bindings: i2c-mux-pca954x: Add documentation for interrupt controller i2c: mux: pca954x: Add missing pca9542 definition to chip_desc i2c: riic: correctly finish transfers i2c: i801: Add support for Intel Gemini Lake i2c: mux: pca9541: Export OF device ID table as module aliases i2c: mux: pca954x: Export OF device ID table as module aliases i2c: mux: mlxcpld: remove unused including <linux/version.h> i2c: busses: constify i2c_algorithm structures i2c: i2c-mux-gpio: rename i2c-gpio-mux to i2c-mux-gpio i2c: sh_mobile: document support for r8a7796 (R-Car M3-W) i2c: i2c-cros-ec-tunnel: Reduce logging noise ...
2017-02-25Merge tag 'for-next-dma_ops' of ↵Linus Torvalds5-8/+8
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma DMA mapping updates from Doug Ledford: "Drop IB DMA mapping code and use core DMA code instead. Bart Van Assche noted that the ib DMA mapping code was significantly similar enough to the core DMA mapping code that with a few changes it was possible to remove the IB DMA mapping code entirely and switch the RDMA stack to use the core DMA mapping code. This resulted in a nice set of cleanups, but touched the entire tree and has been kept separate for that reason." * tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits) IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it IB/core: Remove ib_device.dma_device nvme-rdma: Switch from dma_device to dev.parent RDS: net: Switch from dma_device to dev.parent IB/srpt: Modify a debug statement IB/srp: Switch from dma_device to dev.parent IB/iser: Switch from dma_device to dev.parent IB/IPoIB: Switch from dma_device to dev.parent IB/rxe: Switch from dma_device to dev.parent IB/vmw_pvrdma: Switch from dma_device to dev.parent IB/usnic: Switch from dma_device to dev.parent IB/qib: Switch from dma_device to dev.parent IB/qedr: Switch from dma_device to dev.parent IB/ocrdma: Switch from dma_device to dev.parent IB/nes: Remove a superfluous assignment statement IB/mthca: Switch from dma_device to dev.parent IB/mlx5: Switch from dma_device to dev.parent IB/mlx4: Switch from dma_device to dev.parent IB/i40iw: Remove a superfluous assignment statement IB/hns: Switch from dma_device to dev.parent ...
2017-02-24mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmfDave Jiang3-3/+5
->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to take a vma and vmf parameter when the vma already resides in vmf. Remove the vma parameter to simplify things. [arnd@arndb.de: fix ARM build] Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.com> Cc: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-23Merge tag 'sound-4.11-rc1' of ↵Linus Torvalds1-0/+50
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "Here is the update of sound bits for 4.11: again at this time, no big changes in ALSA and ASoC core but only cosmetic changes like consitifaction. Meanwhile, quite a lot of developments are seen in a few driver side. ALSA Core: - Clean up, consitification of some ops HD-audio: - A slight behavior change of single_cmd option - Quirks for AmigaOne X1000, Samsung Ativ Book 8, Dell AiO, ALC221 HP, and fixes for Lewisburg controller - Realtek ALC299, ALC1220 codecs Others: - USB-audio: Tascam US-16x08 DSP mixer quirk - Intel HDMI LPE audio support for Baytrail / Cherrytrail; this contains some updates in drm/i915 for the new platform binding ASoC: - Lots of updates in Intel drivers, mostly for DisplayPort and HDMI on Skylake and onwards, as well as more Baytrail / Cherrytrail boards support - Channel mapping support for HDMI - Support for AllWinner A31 and A33, Everest Semiconductor ES8328, Nuvoton NAU8540. * tag 'sound-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (323 commits) ALSA: usb-audio: Tidy up mixer_us16x08.c ALSA: usb-audio: Fix memory leak and corruption in mixer_us16x08.c ALSA: usb-audio: purge needless variable length array ALSA: x86: hdmi: select CONFIG_SND_PCM ALSA: x86: Don't enable runtime PM as default ALSA: x86: Use runtime PM autosuspend ALSA: usb-audio: localize function without external linkage ALSA: usb-audio: localize one-referrer variable ALSA: usb-audio: Tascam US-16x08 DSP mixer quirk ALSA: emu10k1: constify snd_emux_operators structure ASoC: sun4i-spdif: drop unnessary snd_soc_unregister_component() ASoC: Intel: bxt: Add jack port initialize in bxt_rt298 machine ASoC: nau8825: automatic BCLK and LRC divde in master mode ASoC: hdac_hdmi: Add device id for Geminilake ASoC: Intel: Skylake: Add Geminlake IDs ASoC: rt298: Add DMI match for Geminilake reference platform ASoC: Intel: Skylake: Check device type to get endpoint configuration ASoC: Intel: bxt: Add jack port initialize in da7219_max98357a machine ASoC: Intel: Skylake: Add jack port initialize in nau88l25_ssm4567 machine ASoC: Intel: Skylake: Add jack port initialize in nau88l25_max98357a machine ...
2017-02-22Merge tag 'char-misc-4.11-rc1' of ↵Linus Torvalds28-519/+2215
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver patchset for 4.11-rc1. Lots of different driver subsystems updated here: rework for the hyperv subsystem to handle new platforms better, mei and w1 and extcon driver updates, as well as a number of other "minor" driver updates. All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits) goldfish: Sanitize the broken interrupt handler x86/platform/goldfish: Prevent unconditional loading vmbus: replace modulus operation with subtraction vmbus: constify parameters where possible vmbus: expose hv_begin/end_read vmbus: remove conditional locking of vmbus_write vmbus: add direct isr callback mode vmbus: change to per channel tasklet vmbus: put related per-cpu variable together vmbus: callback is in softirq not workqueue binder: Add support for file-descriptor arrays binder: Add support for scatter-gather binder: Add extra size to allocator binder: Refactor binder_transact() binder: Support multiple /dev instances binder: Deal with contexts in debugfs binder: Support multiple context managers binder: Split flat_binder_object auxdisplay: ht16k33: remove private workqueue auxdisplay: ht16k33: rework input device initialization ...
2017-02-22Merge tag 'powerpc-4.11-1' of ↵Linus Torvalds6-29/+95
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "Highlights include: - Support for direct mapped LPC on POWER9, giving Linux direct access to devices that may be on there such as a UART. - Memory hotplug support for the Power9 Radix MMU. - Add new AUX vectors describing the processor's cache geometry, to be used by glibc. - The ability for a guest to ask the hypervisor to resize the guest's hash table, and in addition support for doing so automatically when memory is hotplugged into/out-of the guest. This allows the hash table to be sized based on the current memory usage of the guest, rather than the maximum possible memory usage. - Implementation of optprobes (kprobe optimisation) for powerpc. In addition there's the topic branch shared with the KVM tree, which includes support for guests to use the Radix MMU on Power9. Thanks to: Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T, Anton Blanchard, Benjamin Herrenschmidt, Chris Packham, Daniel Axtens, Daniel Borkmann, David Gibson, Finn Thain, Gautham R. Shenoy, Gavin Shan, Greg Kurz, Joel Stanley, John Allen, Madhavan Srinivasan, Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Nathan Fontenot, Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Ravi Bangoria, Reza Arbab, Shailendra Singh, Vaibhav Jain, Wei Yongjun" * tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (129 commits) powerpc/mm/radix: Skip ptesync in pte update helpers powerpc/mm/radix: Use ptep_get_and_clear_full when clearing pte for full mm powerpc/mm/radix: Update pte update sequence for pte clear case powerpc/mm: Update PROTFAULT handling in the page fault path powerpc/xmon: Fix data-breakpoint powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n powerpc/pseries: Fix typo in parameter description powerpc/kprobes: Remove kprobe_exceptions_notify() kprobes: Introduce weak variant of kprobe_exceptions_notify() powerpc/ftrace: Fix confusing help text for DISABLE_MPROFILE_KERNEL powerpc/powernv: Fix opal_exit tracepoint opcode powerpc: Add a prototype for mcount() so it can be versioned powerpc: Drop GPL from of_node_to_nid() export to match other arches powerpc/kprobes: Optimize kprobe in kretprobe_trampoline() powerpc/kprobes: Implement Optprobes powerpc/kprobes: Fixes for kprobe_lookup_name() on BE powerpc: Add helper to check if offset is within relative branch range powerpc/bpf: Introduce __PPC_SH64() ...
2017-02-20Merge branch 'locking-core-for-linus' of ↵Linus Torvalds5-20/+87
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The main changes in this cycle were: - Implement wraparound-safe refcount_t and kref_t types based on generic atomic primitives (Peter Zijlstra) - Improve and fix the ww_mutex code (Nicolai Hähnle) - Add self-tests to the ww_mutex code (Chris Wilson) - Optimize percpu-rwsems with the 'rcuwait' mechanism (Davidlohr Bueso) - Micro-optimize the current-task logic all around the core kernel (Davidlohr Bueso) - Tidy up after recent optimizations: remove stale code and APIs, clean up the code (Waiman Long) - ... plus misc fixes, updates and cleanups" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits) fork: Fix task_struct alignment locking/spinlock/debug: Remove spinlock lockup detection code lockdep: Fix incorrect condition to print bug msgs for MAX_LOCKDEP_CHAIN_HLOCKS lkdtm: Convert to refcount_t testing kref: Implement 'struct kref' using refcount_t refcount_t: Introduce a special purpose refcount type sched/wake_q: Clarify queue reinit comment sched/wait, rcuwait: Fix typo in comment locking/mutex: Fix lockdep_assert_held() fail locking/rtmutex: Flip unlikely() branch to likely() in __rt_mutex_slowlock() locking/rwsem: Reinit wake_q after use locking/rwsem: Remove unnecessary atomic_long_t casts jump_labels: Move header guard #endif down where it belongs locking/atomic, kref: Implement kref_put_lock() locking/ww_mutex: Turn off __must_check for now locking/atomic, kref: Avoid more abuse locking/atomic, kref: Use kref_get_unless_zero() more locking/atomic, kref: Kill kref_sub() locking/atomic, kref: Add kref_read() locking/atomic, kref: Add KREF_INIT() ...
2017-02-19Merge remote-tracking branches 'asoc/topic/max9867', 'asoc/topic/mtk', ↵Mark Brown5-0/+17
'asoc/topic/nau8540', 'asoc/topic/nau8825' and 'asoc/topic/omap' into asoc-next
2017-02-19Merge remote-tracking branches 'asoc/topic/atmel', 'asoc/topic/chmap', ↵Mark Brown1-0/+50
'asoc/topic/cq93vc' and 'asoc/topic/da7218' into asoc-next
2017-02-11misc: eeprom: at24: use device_property_*() functions instead of ↵Ben Gardner1-26/+19
of_get_property() Allow the at24 driver to get configuration information from both OF and ACPI by using the more generic device_property functions. This change was inspired by the at25.c driver. I have a custom board with a ST M24C02 EEPROM attached to an I2C bus. With the following ACPI construct, this patch instantiates a working instance of the driver. Device (EEP0) { Name (_HID, "PRP0001") Name (_DSD, Package () { ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), Package () { Package () {"compatible", Package () {"st,24c02"}}, Package () {"pagesize", 16}, }, }) Name (_CRS, ResourceTemplate () { I2cSerialBus ( 0x0057, ControllerInitiated, 400000, AddressingMode7Bit, "\\_SB.PCI0.I2C3", 0x00, ResourceConsumer,,) }) } Signed-off-by: Ben Gardner <gardner.ben@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-02-10misc: panel: Abstract temporary backlight handlingGeert Uytterhoeven1-41/+60
Currently the periodic scan timer is used for three purposes, entangling keypad and display handling, which are both optional: 1. Scanning the keypad, 2. Flashing the backlight when a key is pressed, 3. Disabling temporary backlighting after a fixed period of time. Abstract the second purpose using a new lcd_poke() function. Make the non-periodic temporary backlight handling independent from keypad handling by converting it to a delayed workqueue. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Add lcd_home() helperGeert Uytterhoeven1-24/+15
Add a helper function to move the cursor to the home position, so callers no longer need access to internal state. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Remove always-true check from panel_detach()Geert Uytterhoeven1-16/+14
panel_detach() already verified that pptr is a valid pointer. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Move all suboptions into a big if sectionGeert Uytterhoeven1-18/+19
All 18 suboptions related to the panel driver have individual dependencies on PANEL. Replace them by a single "if PANEL / endif # PANEL" section for easier dependency management. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Remove reference to misc device supportGeert Uytterhoeven1-4/+3
As of commit 7c5763b8453a9487 ("drivers: misc: Remove MISC_DEVICES config option"), misc device support no longer needs to be enabled manually. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Remove unused LCD_FLAG_S and LCD_FLAG_IDGeert Uytterhoeven1-2/+0
These definitions were never used in any publicly available version since (at least) 2004. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Remove PANEL_VERSIONGeert Uytterhoeven1-12/+6
Hardcoded driver versions are so pre-git. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10misc: panel: Fix LCD_FLAG_F/LCD_FLAG_N exchangeGeert Uytterhoeven1-2/+3
LCD_FLAG_F is the font flag, LCD_FLAG_N is the two-lines flag. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10mei: remove support for broken parallel readAlexander Usyskin1-22/+26
Parallel reads from multiple threads on a file descriptor are not well defined and racy. It is safer to return to original behavior and simply fail the additional read. The solution is to remove request for next read credit. Cc: <stable@vger.kernel.org> #4.9 Fixes: ff1586a7ea57 ("mei: enqueue consecutive reads") Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-10lkdtm: Convert to refcount_t testingKees Cook3-18/+85
Since we'll be using refcount_t instead of atomic_t for refcounting, change the LKDTM tests to reflect the new interface and test conditions. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Hans Liljestrand <ishkamiel@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: arnd@arndb.de Cc: dhowells@redhat.com Cc: dwindsor@gmail.com Cc: elena.reshetova@intel.com Cc: gregkh@linuxfoundation.org Cc: h.peter.anvin@intel.com Cc: kernel-hardening@lists.openwall.com Cc: will.deacon@arm.com Link: http://lkml.kernel.org/r/1486164412-7338-3-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-03cxl: Fix build when CONFIG_DEBUG_FS=nAndrew Donnellan2-5/+57
Stub out the debugfs functions so that the build doesn't break when CONFIG_DEBUG_FS=n. Reported-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-02-03mei: me: generate an interrupt if the hw indicates reset.Alexander Usyskin1-0/+16
In rare case the driver may lose connection with the device after device reset due to a missed interrupt. The driver will unlock the flow by generating an interrupt towards the firmware (HIG) when the device is in the resetting state. The FW is able to ignore the interrupt during orderly flow. The effected platforms are skylake and newer. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03mei: me: add a wrapper to set host generated data interruptAlexander Usyskin1-6/+15
Consolidate setting H_IG, an interrupt from host towards hw, into a wrapper to eliminate code duplication. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03misc: fix typo on KconfigMiguel Bernal Marin1-0/+1
When panel driver was moved from staging to misc a new line was missing to be added on Kconfig file. Fixes: 305b37bd01c2 ("misc: Move panel driver out of staging") Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03vmw_vmci: switch to pci_irq_alloc_vectorsChristoph Hellwig1-55/+20
Cleans up the IRQ management code a lot, including removing a lot of state from the per-device structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: simplify error handling via devres function.Tomas Winkler5-105/+26
Use devm_ and pcim_ functions to make error handling simpler and code smaller and tidier. Based on original patch by mei: me: use managed functions pcim_* and devm_* https://lkml.org/lkml/2016/2/1/339 Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: revamp io list cleanup function.Tomas Winkler3-72/+47
Specify in function names by which object is the io list filtered: cl for a client and fp for file descriptor. In that course a code duplication is resolved by dropping mei_cl_read_cb_flush and mei_clear_list and using mei_io_list_free_fp function. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: replace callback structures used as list head by list_headAlexander Usyskin9-98/+85
mei_dev structure used struct mei_cl_cb type variables as for holding callbacks list heads. Replace them by the actual struct list_head as there is no other info that is handled. This slims down the mei_dev structure and mostly streamline the code. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: amthif: allow the read completion after closeTomas Winkler1-1/+1
The amthif client connection is shared over multiple file descriptors. In case a file descriptor was closed immediately after a write, the read credits should be still available so the pending reads can be cleaned from the queue, hence we cannot drop the control read list, this is done only upon connection close. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: amthif: clean command queue upon disconnectionTomas Winkler1-1/+1
In order to prevent memory leak clean up the amthif command queue upon disconnection. The issue may happen only on error path as the command queue is cleaned upon file descriptor close. And remove the cleanup from mei_cl_flush_queues as this code is never reached for amthif client. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: abort waiting for notification on unsupported HWAlexander Usyskin1-0/+5
On legacy HW, pre Skylake, the notifications are not supported, return -EOPNOTSUPP in mei_cl_notify_get and prevent waiting indefinitely. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: return error on notification request to a disconnected clientAlexander Usyskin1-0/+3
Request for a notification from a disconnected client will be ignored silently by the FW but the caller should know that the operation hasn't succeeded. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: bus: unregister callbacks upon me client disable callAlexander Usyskin1-8/+22
Stop and unregister receive and notification callbacks from the disable function, to allow its later re-enablement. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: bus: prevent hardware module unload if device on bus is activeAlexander Usyskin3-2/+41
The hardware module should not be unloaded if the bus has active devices. Get get_/put_ bus parent module upon client device connection/disconnection, to prevent the hardware managing module to disappear underneath. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-31mei: bus: cancel and disable callback after release callAlexander Usyskin1-4/+4
A driver on the mei bus may rely on the availability of the receive callback during driver remove() call, e.g. mei_wdt. Move callbacks dismantling after the remove() call to unblock that scenario. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-27eeprom: idt_89hpesx: Drop kfree for memory allocated with devm_kzallocWei Yongjun1-4/+0
It's not necessary to free memory allocated with devm_kzalloc and using kfree leads to a double free. Fixes: cfad6425382e ("eeprom: Add IDT 89HPESx EEPROM/CSR driver") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-27eeprom: idt_89hpesx: Discard memory freeing allocated by devm_kmallocSerge Semin1-3/+0
Indeed, the data structure is allocated by device resource manager, so the driver doesn't need to free anything on remove() callback. Reported-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25misc: sram: Integrate protect-exec reserved sram area typeDave Gerlach4-2/+25
Introduce a new "protect-exec" reserved sram area type which is makes use of the the existing functionality provided for the "pool" sram region type for use with the genalloc framework and with the added requirement that it be maintained as read-only and executable while allowing for an arbitrary number of drivers to share the space. This introduces a common way to maintain a region of sram as read-only and executable and also introduces a helper function, sram_exec_copy, which allows for copying data to this protected region while maintaining locking to avoid conflicts between multiple users of the same space. A region of memory that is marked with the "protect-exec" flag in the device tree also has the requirement of providing a page aligned block of memory so that the page attribute manipulation does not affect surrounding regions. Also, selectively enable this only for builds that support set_memory_* calls, for now just ARM, through the use of Kconfig. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25misc: sram: Introduce support code for protect-exec sram typeDave Gerlach2-0/+123
Some platforms, like many ARM SoCs, require the ability to run code from on-chip memory like SRAM for tasks like reconfiguring the SDRAM controller or entering low-power sleep modes. In order to do this we must be able to allocate memory that the code can be copied to but then change the mapping to be read-only and executable so that no memory is both writable and executable at the same time to avoid opening any unneccesary security holes. By using the existing "pool" partition type that the SRAM driver allows we can create a memory space that will already be exposed by the genalloc framework to allow for allocating memory but we must extend this to meet the executable requirements. By making use of various set_memory_* APIs we can change the attributes of pages to make them writable for code upload but then read-only and executable when we want to actually run code. Because SRAM is a shared resource we need a centralized manager of these set memory calls. Because the SRAM driver itself is responsible for allocating the memory we can introduce a sram_copy_exec API for the driver that works like memcpy but also manages the page attributes and locking to allow multiple users of the same SRAM space to all copy their code over independent of other each before starting execution. It is maintained in a separate file from the core SRAM driver to allow it to be selectively built depending on whether or not a platform has the appropriate set_memory_* APIs. A future patch will integrate it with the core SRAM driver. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25misc: sram: Split sram data structures into local headerDave Gerlach2-28/+41
In preparation of a coming file split of the sram driver, move the common data structures into a local header file that can be shared between files related to the sram driver. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25lkdtm: Fix Oops when unloading the moduleJuerg Haefliger1-1/+3
No jprobe is registered when the module is loaded without specifying a crashpoint that uses a jprobe. At the moment, we unconditionally try to unregister the jprobe on module unload which results in an Oops. Add a check to fix this. Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25eeprom: fix platform_no_drv_owner.cocci warningsJulia Lawall1-1/+0
No need to set .owner here. The core will do it. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci CC: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25eeprom: fix memory leak on buf when failed allocation of csraddr_strColin Ian King1-2/+4
The error return path When csraddr_str fails to free buf, causing a memory leak. Fix this by returning via the free_buf label that performs the necessary cleanup. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25cxl: Prevent read/write to AFU config space while AFU not configuredAndrew Donnellan4-23/+35
During EEH recovery, we deconfigure all AFUs whilst leaving the corresponding vPHB and virtual PCI device in place. If something attempts to interact with the AFU's PCI config space (e.g. running lspci) after the AFU has been deconfigured and before it's reconfigured, cxl_pcie_{read,write}_config() will read invalid values from the deconfigured struct cxl_afu and proceed to Oops when they try to dereference pointers that have been set to NULL during deconfiguration. Add a rwsem to struct cxl_afu so we can prevent interaction with config space while the AFU is deconfigured. Reported-by: Pradipta Ghosh <pradghos@in.ibm.com> Suggested-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Cc: stable@vger.kernel.org # v4.9+ Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-01-25cxl: Force psl data-cache flush during device shutdownVaibhav Jain1-0/+3
This change adds a force psl data cache flush during device shutdown callback. This should reduce a possibility of psl holding a dirty cache line while the CAPP is being reinitialized, which may result in a UE [load/store] machine check error. Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-01-25cxl: Drop unused header asm/pnv-pci.hGreg Kurz1-1/+0
The kernel API does not use anything from this header file. Signed-off-by: Greg Kurz <groug@kaod.org> Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-01-24treewide: Move dma_ops from struct dev_archdata into struct deviceBart Van Assche3-3/+3
Some but not all architectures provide set_dma_ops(). Move dma_ops from struct dev_archdata into struct device such that it becomes possible on all architectures to configure dma_ops per device. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-01-24treewide: Constify most dma_map_ops structuresBart Van Assche5-6/+6
Most dma_map_ops structures are never modified. Constify these structures such that these can be write-protected. This patch has been generated as follows: git grep -l 'struct dma_map_ops' | xargs -d\\n sed -i \ -e 's/struct dma_map_ops/const struct dma_map_ops/g' \ -e 's/const struct dma_map_ops {/struct dma_map_ops {/g' \ -e 's/^const struct dma_map_ops;$/struct dma_map_ops;/' \ -e 's/const const struct dma_map_ops /const struct dma_map_ops /g'; sed -i -e 's/const \(struct dma_map_ops intel_dma_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops intel_dma_ops'); sed -i -e 's/const \(struct dma_map_ops dma_iommu_ops\)/\1/' \ $(git grep -l 'struct dma_map_ops' | grep ^arch/powerpc); sed -i -e '/^struct vmd_dev {$/,/^};$/ s/const \(struct dma_map_ops[[:blank:]]dma_ops;\)/\1/' \ -e '/^static void vmd_setup_dma_ops/,/^}$/ s/const \(struct dma_map_ops \*dest\)/\1/' \ -e 's/const \(struct dma_map_ops \*dest = \&vmd->dma_ops\)/\1/' \ drivers/pci/host/*.c sed -i -e '/^void __init pci_iommu_alloc(void)$/,/^}$/ s/dma_ops->/intel_dma_ops./' arch/ia64/kernel/pci-dma.c sed -i -e 's/static const struct dma_map_ops sn_dma_ops/static struct dma_map_ops sn_dma_ops/' arch/ia64/sn/pci/pci_dma.c sed -i -e 's/(const struct dma_map_ops \*)//' drivers/misc/mic/bus/vop_bus.c Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 07:55:36 +0000