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2017-04-20powerpc/kprobes: Emulate instructions on kprobe handler re-entryNaveen N. Rao
On kprobe handler re-entry, try to emulate the instruction rather than single stepping always. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kprobes: Factor out code to emulate instruction into a helperNaveen N. Rao
Factor out code to emulate instruction into a try_to_emulate() helper function. This makes no functional changes. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kretprobes: Override default function entry offsetNaveen N. Rao
With ABIv2, we offset 8 bytes into a function to get at the local entry point. mpe: NB this function is currently not called, the change to generic code to call it is being merged via the tip tree. Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20powerpc/kprobes: Fix handling of function offsets on ABIv2Naveen N. Rao
commit 239aeba76409 ("perf powerpc: Fix kprobe and kretprobe handling with kallsyms on ppc64le") changed how we use the offset field in struct kprobe on ABIv2. perf now offsets from the global entry point if an offset is specified and otherwise chooses the local entry point. Fix the same in kernel for kprobe API users. We do this by extending kprobe_lookup_name() to accept an additional parameter to indicate the offset specified with the kprobe registration. If offset is 0, we return the local function entry and return the global entry point otherwise. With: # cd /sys/kernel/debug/tracing/ # echo "p _do_fork" >> kprobe_events # echo "p _do_fork+0x10" >> kprobe_events before this patch: # cat ../kprobes/list c0000000000d0748 k _do_fork+0x8 [DISABLED] c0000000000d0758 k _do_fork+0x18 [DISABLED] c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED] and after: # cat ../kprobes/list c0000000000d04c8 k _do_fork+0x8 [DISABLED] c0000000000d04d0 k _do_fork+0x10 [DISABLED] c0000000000412b0 k kretprobe_trampoline+0x0 [OPTIMIZED] Acked-by: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20kprobes: Convert kprobe_lookup_name() to a functionNaveen N. Rao
The macro is now pretty long and ugly on powerpc. In the light of further changes needed here, convert it to a __weak variant to be over-ridden with a nicer looking function. Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20kprobes: Skip preparing optprobe if the probe is ftrace-basedMasami Hiramatsu
Skip preparing optprobe if the probe is ftrace-based, since anyway, it must not be optimized (or already optimized by ftrace). Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-20ALSA: fireface: obsolete usage of ktime_set() for zero assignmentTakashi Sakamoto
In development period for Linux v4.10, ktime_t became an alias of s64, instead of union. I forgot it. We can just assign zero, instead of usage of ktime_set(0, 0). Fixes: 19174295788 ("ALSA: fireface: add transaction support") Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-20timer/sysclt: Restrict timer migration sysctl values to 0 and 1Myungho Jung
timer_migration sysctl acts as a boolean switch, so the allowed values should be restricted to 0 and 1. Add the necessary extra fields to the sysctl table entry to enforce that. [ tglx: Rewrote changelog ] Signed-off-by: Myungho Jung <mhjungk@gmail.com> Link: http://lkml.kernel.org/r/1492640690-3550-1-git-send-email-mhjungk@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20arm64/arch_timer: Mark errata handlers as __maybe_unusedArnd Bergmann
In some rare randconfig builds, we end up with two functions being entirely unused: drivers/clocksource/arm_arch_timer.c:342:12: error: 'erratum_set_next_event_tval_phys' defined but not used [-Werror=unused-function] static int erratum_set_next_event_tval_phys(unsigned long evt, drivers/clocksource/arm_arch_timer.c:335:12: error: 'erratum_set_next_event_tval_virt' defined but not used [-Werror=unused-function] static int erratum_set_next_event_tval_virt(unsigned long evt, We could add an #ifdef around them, but we would already have to check for several symbols there and there is a chance this would get more complicated over time, so marking them as __maybe_unused is the simplest way to avoid the harmless warnings. Fixes: 01d3e3ff2608 ("arm64: arch_timer: Rework the set_next_event workarounds") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: Christoffer Dall <christoffer.dall@linaro.org> Link: http://lkml.kernel.org/r/20170419173737.3846098-1-arnd@arndb.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20Clocksource/mips-gic: Remove redundant non devicetree initMatt Redfearn
Malta was the only platform probing this driver from platform code without using device tree. With that code removed, gic_clocksource_init is redundant so remove it. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Jason Cooper <jason@lakedaemon.net> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492604806-23420-2-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20MIPS/Malta: Probe gic-timer via devicetreeMatt Redfearn
The Malta platform is the only platform remaining to probe the GIC clocksource via gic_clocksource_init. This route hardcodes an expected virq number based on MIPS_GIC_IRQ_BASE, which can be fragile to the eventual virq layout. Instread, probe the driver using the preferred and more modern devicetree method. Before the driver is probed, set the "clock-frequency" property of the devicetree node to the value detected by Malta platform code. Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com> Cc: linux-mips@linux-mips.org Cc: James Hogan <james.hogan@imgtec.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/1492604806-23420-1-git-send-email-matt.redfearn@imgtec.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20clocksource: Use GENMASK_ULL in definition of CLOCKSOURCE_MASKMatthias Kaehlcke
Besides reusing existing code this removes the special case handling for 64-bit masks, which causes clang to raise a shift count overflow warning due to https://bugs.llvm.org//show_bug.cgi?id=10030. Suggested-by: Dmitry Torokhov <dtor@chromium.org> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Cc: Grant Grundler <grundler@chromium.org> Cc: Greg Hackmann <ghackmann@google.com> Cc: Michael Davidson <md@google.com> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/20170418233037.70990-1-mka@chromium.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2017-04-20mmc: sdhci-esdhc-imx: increase the pad I/O drive strength for DDR50 cardHaibo Chen
Currently for DDR50 card, it need tuning in default. We meet tuning fail issue for DDR50 card and some data CRC error when DDR50 sd card works. This is because the default pad I/O drive strength can't make sure DDR50 card work stable. So increase the pad I/O drive strength for DDR50 card, and use pins_100mhz. This fixes DDR50 card support for IMX since DDR50 tuning was enabled from commit 9faac7b95ea4 ("mmc: sdhci: enable tuning for DDR50") Tested-and-reported-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Cc: stable@vger.kernel.org # v4.4+ Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-20s390/kvm: Add use_cmma field to mm_context_tClaudio Imbrenda
Add use_cmma field to mm_context_t, like we do for storage keys. Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Acked-by: Janosch Frank <frankja@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-04-20s390/kvm: Add PGSTE manipulation functionsClaudio Imbrenda
Add PGSTE manipulation functions: * set_pgste_bits sets specific bits in a PGSTE * get_pgste returns the whole PGSTE * pgste_perform_essa manipulates a PGSTE to set specific storage states * ESSA_[SG]ET_* macros used to indicate the action for manipulate_pgste Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Reviewed-by: Janosch Frank <frankja@de.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-04-20rt2800: fix mt7620 E2 channel registersTomislav Požega
update RF register 47 and 54 values according to vendor driver Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rt2800: fix mt7620 vco calibration registersTomislav Požega
Use register values from init LNA function instead of the ones from restore LNA function. Apply register values based on rx path configuration. Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rt2800: do VCO calibration after programming ALCDaniel Golle
Somehow AP doesn't come up and the first scan fails if we don't do VCO calibration every time. The vendor driver duplicates the VCO calibration function into the channel switching logic, we can do the same with less duplication. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rt2800: fix LNA gain assignment for MT7620Daniel Golle
The base value used for MT7620 differs from Rt5392 which resulted in quite bad RX signal quality. Fix this by using the correct base value as well as the LNA calibration values for HT20. Reported-by: Tom Psyborg <pozega.tomislav@gmail.com> Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20ARM: hyp-stub: Fix Thumb-2 compilationMarc Zyngier
The assembler defaults to emiting the short form of ADR, leading to an out-of-range immediate. Using the wide version solves this issue. Fixes: bc845e4fbbbb ("ARM: KVM: Implement HVC_RESET_VECTORS stub hypercall in the init code") Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-04-20ALSA: firewire-motu: mark trace helpers as __maybe_unusedArnd Bergmann
Two functions were introduced for the purpose of tracing but cause warnings when tracing is disabled: sound/firewire/motu/amdtp-motu.c:284:13: error: 'copy_message' defined but not used [-Werror=unused-function] static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks, sound/firewire/motu/amdtp-motu.c:271:13: error: 'copy_sph' defined but not used [-Werror=unused-function] static void copy_sph(u32 *frames, __be32 *buffer, unsigned int data_blocks, Marking them as __maybe_unused will do the right thing here. Fixes: 17909c1b3058 ("ALSA: firewire-motu: add tracepoints for SPH in IEC 61883-1 fashion") Fixes: c6b0b9e65f09 ("ALSA: firewire-motu: add tracepoints for messages for unique protocol") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-04-20ACPI / PMIC: Stop xpower OPRegion handler relying on IIOHans de Goede
The intel_pmic_xpower code provides an OPRegion handler, which must be available before other drivers using it are loaded, which can only be ensured if both the mfd and opregion drivers are built in, which is why the Kconfig option for intel_pmic_xpower is a bool. The use of IIO is causing trouble for generic distro configs here as distros will typically want to build IIO drivers as modules and there really is no reason to use IIO here. The reading of the ADC value is a single regmap_bulk_read, which is already protected against races by the regmap-lock. This commit removes the use of IIO, allowing distros to enable the driver without needing to built IIO in and also actually simplifies the code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-20ACPI / PMIC: Add opregion driver for Intel CHT Whiskey Cove PMICHans de Goede
Add opregion driver for Intel CHT Whiskey Cove PMIC, based on various non upstreamed CHT Whiskey Cove PMIC patches. This does not include support for the Thermal opregion (DPTF) due to lacking documentation. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-20ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTERAbel Vesa
The support for dynamic ftrace with CONFIG_DEBUG_RODATA involves overriding the weak arch_ftrace_update_code() with a variant which makes the kernel text writable around the patching. This override was however added under the CONFIG_OLD_MCOUNT ifdef, and CONFIG_OLD_MCOUNT is only enabled if frame pointers are enabled. This leads to non-functional dynamic ftrace (ftrace triggers a WARN_ON()) when CONFIG_DEBUG_RODATA is enabled and CONFIG_FRAME_POINTER is not. Move the override out of that ifdef and into the CONFIG_DYNAMIC_FTRACE ifdef where it belongs. Fixes: 80d6b0c2eed2a ("ARM: mm: allow text and rodata sections to be read-only") Suggested-by: Nicolai Stange <nicstange@gmail.com> Suggested-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Abel Vesa <abelvesa@gmail.com> Acked-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-04-20ARM: 8667/3: Fix memory attribute inconsistencies when using fixmapJon Medhurst
To cope with the variety in ARM architectures and configurations, the pagetable attributes for kernel memory are generated at runtime to match the system the kernel finds itself on. This calculated value is stored in pgprot_kernel. However, when early fixmap support was added for ARM (commit a5f4c561b3b1) the attributes used for mappings were hard coded because pgprot_kernel is not set up early enough. Unfortunately, when fixmap is used after early boot this means the memory being mapped can have different attributes to existing mappings, potentially leading to unpredictable behaviour. A specific problem also exists due to the hard coded values not include the 'shareable' attribute which means on systems where this matters (e.g. those with multiple CPU clusters) the cache contents for a memory location can become inconsistent between CPUs. To resolve these issues we change fixmap to use the same memory attributes (from pgprot_kernel) that the rest of the kernel uses. To enable this we need to refactor the initialisation code so build_mem_type_table() is called early enough. Note, that relies on early param parsing for memory type overrides passed via the kernel command line, so we need to make sure this call is still after parse_early_params(). [ardb: keep early_fixmap_init() before param parsing, for earlycon] Fixes: a5f4c561b3b1 ("ARM: 8415/1: early fixmap support for earlycon") Cc: <stable@vger.kernel.org> # v4.3+ Tested-by: afzal mohammed <afzal.mohd.ma@gmail.com> Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
2017-04-20HID: wacom: Override incorrect logical maximum contact identifierJason Gerecke
It apears that devices designed around Wacom's G11 chipset (e.g. Lenovo ThinkPad Yoga 260, Lenovo ThinkPad X1 Yoga, Dell XPS 12 9250, Dell Venue 8 Pro 5855, etc.) suffer from a common issue in their HID descriptors. The logical maximum is not updated for the "Contact Identifier" usage, leaving it as just "1" despite these devices being capable of tracking far more touches. Commit 60a221869803 began ignoring usages with out-of-range values, causing problems for devices based on this chipset. Touches after the first will have an out-of-range Contact Identifier, and ignoring that usage will cause the kernel to incorrectly slot each finger's events (along with all the knock-on userspace effects that entails). This commit checks for these buggy descriptors and updates the maximum where required. Prior chipsets have used "255" as the maximum (and the G11, at least, doesn't seem to actually use IDs outside the range of 1..CONTACTMAX) so continue using this value. Cc: stable@vger.kernel.org Fixes: 60a221869803 ("HID: wacom: generic: add support for touchring") Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-04-20dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macroLogan Gunthorpe
Seeing the kunmap_atomic dma_buf_ops share the same name with a macro in highmem.h, the former can be aliased if any dma-buf user includes that header. I'm personally trying to include highmem.h inside scatterlist.h and this breaks the dma-buf code proper. Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP. To maintain consistency I've renamed all four of kmap* and kunmap* to be map* and unmap*. (Even though only kmap_atomic presently conflicts.) [1] https://www.spinics.net/lists/target-devel/msg15070.html Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/1492630570-879-1-git-send-email-logang@deltatee.com
2017-04-20Merge ath-next from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.gitKalle Valo
ath.git patches for 4.12. Major changes: ath9k * add support for Dell Wireless 1601 PCI device * add debugfs file to manually override noise floor ath10k * bump up FW API to 6 for a new QCA6174 firmware branch wil6210 * support 8 kB RX buffers
2017-04-20sched/x86: Update reschedule warning textPrarit Bhargava
Modify the reschedule warning to output the offline CPU number and use a better debug message. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Link: http://lkml.kernel.org/r/1492518305-3808-1-git-send-email-prarit@redhat.com [ Tweaked the warning message. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-20Merge tag 'perf-core-for-mingo-4.12-20170419' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core cleanups from Arnaldo Carvalho de Melo: - Introduce new header files out of the hodge-podge that util/util.h became, trying to disentangle the includes hell that all C projects end up growing. This should help in build times, as changes to seemingly unrelated files (util.h included tons of headers) won't trigger a rebuild of most object files. - Use equivalent facilities found in the kernel source code base originated tools/include/ header files, such as __stringify(), ARRAY_SIZE, that has extra checks (__must_be_array()), etc. - For that get some more files from the kernel sources, like include/linux/bug.h, some just with the bits needed at this time. - Use the headers where facilities declared in them are used, such as PRIxu(32,64) macros (inttypes.h), errno defines (errno.h), etc. - Remove various leftovers from the initial code base we copied from git.git: FLEX_ARRAY, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-04-20Merge branch 'WIP.x86/process' into perf/coreIngo Molnar
2017-04-20x86/reboot: Turn off KVM when halting a CPUTiantian Feng
A CPU in VMX root mode will ignore INIT signals and will fail to bring up the APs after reboot. Therefore, on a panic we disable VMX on all CPUs before rebooting or triggering kdump. Do this when halting the machine as well, in case a firmware-level reboot does not perform a cold reset for all processors. Without doing this, rebooting the host may hang. Signed-off-by: Tiantian Feng <fengtiantian@huawei.com> Signed-off-by: Xishi Qiu <qiuxishi@huawei.com> [ Rewritten commit message. ] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: kvm@vger.kernel.org Link: http://lkml.kernel.org/r/20170419161839.30550-1-pbonzini@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-20x86/boot: Fix BSS corruption/overwrite bug in early x86 kernel startupAshish Kalra
The minimum size for a new stack (512 bytes) setup for arch/x86/boot components when the bootloader does not setup/provide a stack for the early boot components is not "enough". The setup code executing as part of early kernel startup code, uses the stack beyond 512 bytes and accidentally overwrites and corrupts part of the BSS section. This is exposed mostly in the early video setup code, where it was corrupting BSS variables like force_x, force_y, which in-turn affected kernel parameters such as screen_info (screen_info.orig_video_cols) and later caused an exception/panic in console_init(). Most recent boot loaders setup the stack for early boot components, so this stack overwriting into BSS section issue has not been exposed. Signed-off-by: Ashish Kalra <ashish@bluestacks.com> Cc: <stable@vger.kernel.org> Cc: 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/20170419152015.10011-1-ashishkalra@Ashishs-MacBook-Pro.local Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-04-20Merge tag 'iwlwifi-next-for-kalle-2017-04-19-2' of ↵Kalle Valo
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next Another series of patches intended for v4.12. These are the changes: * Heavy work for the A000 device series; * Some cleanup patches; * A few fixes; * Dynamic SAR support; * Geographical SAR support; * Support a few new PCI device IDs;
2017-04-20nubus: Add MVC and VSC video card definitionsFinn Thain
Also move the NUBUS_DRHW_APPLE_JET definition, for numerical order. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20nubus: Clean up whitespaceFinn Thain
Signed-off-by: Finn Thain <fthain@telegraphics.com.au> [geert: rebased] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20nubus: Clean up printk callsDavid Huggins-Daines
Some long forgotten changes from the linux-mac68k CVS: Fix swapped DrvrSW and DrvrHW values in printk message. Suppress debug printk messages. Avoid console_loglevel misuse. The original commits are these: http://linux-mac68k.cvs.sourceforge.net/viewvc/linux-mac68k/linux-mac68k/drivers/nubus/nubus.c?r1=1.22.2.1&r2=1.22.2.2&pathrev=linux-2_2 http://linux-mac68k.cvs.sourceforge.net/viewvc/linux-mac68k/linux-mac68k/drivers/nubus/nubus.c?r1=1.21&r2=1.22&pathrev=linux-2_2 The CVS commits fell short of removing all of the misuse of console_loglevel in nubus_add_board() so I finished the job. I've also added some missing message severity levels and converted a printk loop to the MAC address "%pM" format specifier. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20nubus: Fix nubus_rewinddirDavid Huggins-Daines
A long forgotten fix from the linux-mac68k CVS: Initialize dir->done pointer in nubus_rewinddir(). The original commit is here: http://linux-mac68k.cvs.sourceforge.net/viewvc/linux-mac68k/linux-mac68k/drivers/nubus/nubus.c?r1=1.22&r2=1.22.2.1&pathrev=linux-2_2 Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20m68k/mac: Clarify IOP message alloc/free confusionFinn Thain
The alloc/free metaphor used for IOP messages is misleading and can cause mistakes like the pointless msg2 temporary variable. Use a more meaningful name to help simplify the code. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20m68k/mac: Adopt platform_device_register_simple()Finn Thain
These changes save 1014 bytes according to scripts/bloat-o-meter. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20m68k/mac: Modernize printing of kernel messagesGeert Uytterhoeven
Convert from printk() to pr_*(). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> [FT: Adjusted log message severity levels and retained bootinfo log] Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20m68k/mac: IOP - Modernize printing of kernel messagesGeert Uytterhoeven
- Introduce helpers for printing debug messages, incl. dummies for validating format strings when debugging is disabled, - Convert from printk() to pr_*(), - Add missing continuations, - Drop superfluous casts. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> [FT: Renamed pr_iop* macros, adjusted log message severity and eliminated DEBUG_IOP] Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: wifi is linking actionYan-Hsuan Chuang
When wifi is under scanning/linking/roaming, do not run the reset of the coex mechanism because these activities are important for wifi, just run the linking process and return. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: just return when wifi is under ipsYan-Hsuan Chuang
If wifi is in power saving mode, do nothing. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> --- drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a2ant.c | 6 ++++++ 1 file changed, 6 insertions(+) Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: do not limit rx agg sizeYan-Hsuan Chuang
For bt profiling, we do not need to limit the rx agg size. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: macro for bt rssi thresholdYan-Hsuan Chuang
Using macro to control the bt threshold. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: dec bt power according to bt rssi and set tdmaYan-Hsuan Chuang
Check the bt rssi first and decrease it if the bt rssi is too high. Then set the tdma and coex table. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: notify fw the number of APsYan-Hsuan Chuang
Use h2c to tell the firmware if the number of AP is more than 10 or not. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: monitor extra wifi rssi to examine network statusYan-Hsuan Chuang
Here we monitor one more wifi rssi to check the status of the network and set the coex table instead of the legacy way. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2017-04-20rtlwifi: btcoex: 21a 2ant: add multiport action for p2p/miracastYan-Hsuan Chuang
For p2p/miracast, the wifi may have multiple ports for different roles. Under this, we need extra settings for turning off the tdma and proper coex table parameters. We monnitor the number of links on a port to determine if it is for p2p/miracast or not. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Pkshih <pkshih@realtek.com> Cc: Birming Chiu <birming@realtek.com> Cc: Shaofu <shaofu@realtek.com> Cc: Steven Ting <steventing@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
generated by cgit (git 2.34.1) at 2025-09-29 12:01:43 +0000