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2016-07-19tpm_tis_core: convert max timeouts from msec to jiffiesapronin@chromium.org
tpm_tis_core was missing conversion from msec when assigning max timeouts from constants. Fixes: aec04cbdf723 ("tpm: TPM 2.0 FIFO Interface") Signed-off-by: Andrey Pronin <apronin@chromium.org> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2016-07-19arm64: localise Image objcopy flagsMark Rutland
We currently define OBJCOPYFLAGS in the top-level arm64 Makefile, and thus these flags will be passed to all uses of objcopy, kernel-wide, for which they are not explicitly overridden. The flags we set are intended for converting vmlinux (and ELF) into Image (a raw binary), and thus the flags chosen are problematic for some other uses which do not expect a raw binary result, e.g. the upcoming lkdtm rodata test: http://www.openwall.com/lists/kernel-hardening/2016/06/08/2 This patch localises the objcopy flags such that they are only used for the vmlinux -> Image conversion. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Acked-by: Kees Cook <keescook@chromium.org> Tested-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: ptrace: remove extra define for CPSR's E bitVladimir Murzin
...and do not confuse source navigation tools ;) Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19kprobes: Add arm64 case in kprobe example moduleSandeepa Prabhu
Add info prints in sample kprobe handlers for ARM64 Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Add kernel return probes support (kretprobes)Sandeepa Prabhu
The pre-handler of this special 'trampoline' kprobe executes the return probe handler functions and restores original return address in ELR_EL1. This way the saved pt_regs still hold the original register context to be carried back to the probed kernel function. Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Add trampoline code for kretprobesWilliam Cohen
The trampoline code is used by kretprobes to capture a return from a probed function. This is done by saving the registers, calling the handler, and restoring the registers. The code then returns to the original saved caller return address. It is necessary to do this directly instead of using a software breakpoint because the code used in processing that breakpoint could itself be kprobe'd and cause a problematic reentry into the debug exception handler. Signed-off-by: William Cohen <wcohen@redhat.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: removed unnecessary masking of the PSTATE bits] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: kprobes instruction simulation supportSandeepa Prabhu
Kprobes needs simulation of instructions that cannot be stepped from a different memory location, e.g.: those instructions that uses PC-relative addressing. In simulation, the behaviour of the instruction is implemented using a copy of pt_regs. The following instruction categories are simulated: - All branching instructions(conditional, register, and immediate) - Literal access instructions(load-literal, adr/adrp) Conditional execution is limited to branching instructions in ARM v8. If conditions at PSTATE do not match the condition fields of opcode, the instruction is effectively NOP. Thanks to Will Cohen for assorted suggested changes. Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: William Cohen <wcohen@redhat.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: removed linux/module.h include] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Treat all entry code as non-kprobe-ablePratyush Anand
Entry symbols are not kprobe safe. So blacklist them for kprobing. Signed-off-by: Pratyush Anand <panand@redhat.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: Do not include syscall wrappers in .entry.text] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Blacklist non-kprobe-able symbolPratyush Anand
Add all function symbols which are called from do_debug_exception under NOKPROBE_SYMBOL, as they can not kprobed. Signed-off-by: Pratyush Anand <panand@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Kprobes with single stepping supportSandeepa Prabhu
Add support for basic kernel probes(kprobes) and jump probes (jprobes) for ARM64. Kprobes utilizes software breakpoint and single step debug exceptions supported on ARM v8. A software breakpoint is placed at the probe address to trap the kernel execution into the kprobe handler. ARM v8 supports enabling single stepping before the break exception return (ERET), with next PC in exception return address (ELR_EL1). The kprobe handler prepares an executable memory slot for out-of-line execution with a copy of the original instruction being probed, and enables single stepping. The PC is set to the out-of-line slot address before the ERET. With this scheme, the instruction is executed with the exact same register context except for the PC (and DAIF) registers. Debug mask (PSTATE.D) is enabled only when single stepping a recursive kprobe, e.g.: during kprobes reenter so that probed instruction can be single stepped within the kprobe handler -exception- context. The recursion depth of kprobe is always 2, i.e. upon probe re-entry, any further re-entry is prevented by not calling handlers and the case counted as a missed kprobe). Single stepping from the x-o-l slot has a drawback for PC-relative accesses like branching and symbolic literals access as the offset from the new PC (slot address) may not be ensured to fit in the immediate value of the opcode. Such instructions need simulation, so reject probing them. Instructions generating exceptions or cpu mode change are rejected for probing. Exclusive load/store instructions are rejected too. Additionally, the code is checked to see if it is inside an exclusive load/store sequence (code from Pratyush). System instructions are mostly enabled for stepping, except MSR/MRS accesses to "DAIF" flags in PSTATE, which are not safe for probing. This also changes arch/arm64/include/asm/ptrace.h to use include/asm-generic/ptrace.h. Thanks to Steve Capper and Pratyush Anand for several suggested Changes. Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: David A. Long <dave.long@linaro.org> Signed-off-by: Pratyush Anand <panand@redhat.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: add conditional instruction simulation supportDavid A. Long
Cease using the arm32 arm_check_condition() function and replace it with a local version for use in deprecated instruction support on arm64. Also make the function table used by this available for future use by kprobes and/or uprobes. This function is derived from code written by Sandeepa Prabhu. Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Add more test functions to insn.cDavid A. Long
Certain instructions are hard to execute correctly out-of-line (as in kprobes). Test functions are added to insn.[hc] to identify these. The instructions include any that use PC-relative addressing, change the PC, or change interrupt masking. For efficiency and simplicity test functions are also added for small collections of related instructions. Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19arm64: Add HAVE_REGS_AND_STACK_ACCESS_API featureDavid A. Long
Add HAVE_REGS_AND_STACK_ACCESS_API feature for arm64, including supporting functions and defines. Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> [catalin.marinas@arm.com: Remove unused functions] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2016-07-19ath6kl: Unset IFF_LOWER_UP flag on AP mode leave.Pierre Le Magourou
When disabling tethering after having enabled it, the ath6kl driver does not set the IFF_LOWER_UP flag to 0 (carrier off) on the wlan interface. The upper layers (eg. connman) are not notified of the tethering mode status change. So, tethering can not be activated anymore. This patch adds a netif_carrier_off() call when stopping AP mode to fix the problem. Signed-off-by: Pierre Le Magourou <plemagourou@aldebaran.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-19ath6kl: Fix wrong regulatory domain disconnection.Pierre Le Magourou
One minute after a successful connection, the kernel checks if the frequency and the channel width are well configured for the country we are in. (regulatory domain) ath6kl driver was setting the NL80211_CHAN_HT20 channel without checking for the HT capabilities. (we should have NL80211_CHAN_NO_HT in our case because the firmware did not support HT) This patch adds a check on ht_cap.ht_supported in order to create the channel corresponding to the firmware capabilities. Signed-off-by: Pierre Le Magourou <plemagourou@aldebaran.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-19ath6kl: Fix WLAN tethering authentication problem.Pierre Le Magourou
When enabling WLAN tethering, a new AP is visible and a STA could connect to it. When the STA tries to authenticate to the newly created AP, the WPA authentication mechanism is stuck in the 1/4 msg of 4-Way Handshake. In ath6kl_rx(), the ath6kl_find_sta() function is looking for the h_source field of the Ethernet frame header received by the STA. The datap pointer that points to the Ethernet frame header is incorrect, and was pointing at the wrong offset in the buffer. This commit adds a pad_before_data_start offset to set the datap pointer to the Ethernet frame header. datap->h_source parameter is now really pointing to the source ethernet address and the authentication process can continue. Signed-off-by: Pierre Le Magourou <plemagourou@aldebaran.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-19ath10k: disable wake_tx_queue for older devicesMichal Kazior
Ideally wake_tx_queue should be used regardless as it is a requirement for reducing bufferbloat and implementing airtime fairness in the future. However some setups (typically low-end platforms hosting QCA988X) suffer performance regressions with the current wake_tx_queue implementation. Therefore disable it unless it is really beneficial with current codebase (which is when firmware supports smart pull-push tx scheduling). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-07-19leds: is31fl32xx: define complete i2c_device_id tableH. Nikolaus Schaller
Otherwise the driver module will not be automatically probed. Fixes: 9d7cffaf99f5 ("leds: Add driver for the ISSI IS31FL32xx family of LED controllers") Fixes: e0442d7def8f ("leds: Add SN3218 and SN3216 support to the IS31FL32XX driver") Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Tested-by: David Rivshin <drivshin@allworx.com> Acked-by: David Rivshin <drivshin@allworx.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-07-19leds: is31fl32xx: fix typo in id and match table namesH. Nikolaus Schaller
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Tested-by: David Rivshin <drivshin@allworx.com> Acked-by: David Rivshin <drivshin@allworx.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-07-19tick/nohz: Optimize nohz idle enterGaurav Jindal
tick_nohz_start_idle is called before checking whether the idle tick can be stopped. If the tick cannot be stopped, calling tick_nohz_start_idle() is pointless and just wasting CPU cycles. Only invoke tick_nohz_start_idle() when can_stop_idle_tick() returns true. A short one minute observation of the effect on ARM64 shows a reduction of calls by 1.5% thus optimizing the idle entry sequence. [tglx: Massaged changelog ] Co-developed-by: Sanjeev Yadav<sanjeev.yadav@spreadtrum.com> Signed-off-by: Gaurav Jindal<gaurav.jindal@spreadtrum.com> Link: http://lkml.kernel.org/r/20160714120416.GB21099@gaurav.jindal@spreadtrum.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-19powerpc/32: Remove RELOCATABLE_PPC32Kevin Hao
It is seldom used in the kernel code and can be easily replaced by either RELOCATABLE or PPC32. So there is no reason to keep a separate kernel option for this. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc: Merge the RELOCATABLE config entries for ppc32 and ppc64Kevin Hao
It makes no sense to keep two separate RELOCATABLE config entries for ppc32 and ppc64 respectively. Merge them into one and move it to a common place. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/32/booke: Fix the build error when CRASH_DUMP is enabledKevin Hao
In the current code, the RELOCATABLE will be forcedly enabled when enabling CRASH_DUMP. But for ppc32, the RELOCABLE also depend on ADVANCED_OPTIONS and select NONSTATIC_KERNEL. This will cause the following build error when CRASH_DUMP=y && ADVANCED_OPTIONS=n because the select of NONSTATIC_KERNEL doesn't take effect. arch/powerpc/include/asm/io.h: In function 'virt_to_phys': arch/powerpc/include/asm/page.h:113:26: error: 'virt_phys_offset' undeclared (first use in this function) #define VIRT_PHYS_OFFSET virt_phys_offset ^ It doesn't have any strong reasons to make the RELOCATABLE depend on ADVANCED_OPTIONS. So remove this dependency to fix this issue. Signed-off-by: Kevin Hao <haokexin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/pseries: Use kernel hotplug queue for PowerVM hotplug eventsJohn Allen
The sysfs interface used to handle PowerVM hotplug events should use the hotplug queue as well. PRRN events will soon be placing many hotplug events on the queue at once and we will need ordinary hotplug events to use the queue as well in order to ensure these events will still be handled and that proper serialization is maintained during the PRRN event. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/pseries: Add support for hotplug interrupt sourceJohn Allen
Add handler for new hotplug interrupt. For memory and CPU hotplug events, we will add the hotplug errorlog to the hotplug workqueue. Since PCI hotplug is not currently supported in the kernel, PCI hotplug events are written to the rtas_log_bug and are handled by rtas_errd. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/pseries: Add pseries hotplug workqueueJohn Allen
In support of PAPR changes to add a new hotplug interrupt, introduce a hotplug workqueue to avoid processing hotplug events in interrupt context. We will also take advantage of the queue on PowerVM to ensure hotplug events initiated from different sources (HMC and PRRN events) are handled and serialized properly. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19cxl: fix potential NULL dereference in free_adapter()Andrew Donnellan
If kzalloc() fails when allocating adapter->guest in cxl_guest_init_adapter(), we call free_adapter() before erroring out. free_adapter() in turn attempts to dereference adapter->guest, which in this case is NULL. In free_adapter(), skip the adapter->guest cleanup if adapter->guest is NULL. Fixes: 14baf4d9c739 ("cxl: Add guest-specific code") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19cxl: remove dead Kconfig optionsAndrew Donnellan
Remove the CXL_KERNEL_API and CXL_EEH Kconfig options, as they were only needed to coordinate the merging of the cxlflash driver. Also remove the stub implementation of cxl_perst_reloads_same_image() in cxlflash which is only used if CXL_EEH isn't defined (i.e. never). Suggested-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=nIan Munsie
pnv_cxl_enable_phb_kernel_api() grabs a reference to the cxl module to prevent it from being unloaded after the PHB has been switched to CX4 mode. This breaks the build when CONFIG_MODULES=n as module_mutex doesn't exist. However, if we don't have modules, we don't need to protect against the case of the cxl module being unloaded. As such, split the relevant code out into a function surrounded with #if IS_MODULE(CXL) so we don't try to compile it if cxl isn't being compiled as a module. Fixes: 5918dbc9b4ec ("powerpc/powernv: Add support for the cxl kernel api on the real phb") Reported-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19powerpc/mm: Cleanup LPCR definesAneesh Kumar K.V
This makes it easy to verify we are not overloading the bits. No functionality change by this patch. mpe: Cleanup more. Completely fixup whitespace, convert all UL values to ASM_CONST(), and replace all occurrences of 63-x with the actual shift. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-07-19genirq: Fix missing irq allocation affinity hintVincent Stehle
The new affinity hint argument of __irq_domain_alloc_irqs() is missing in irq_reserve_ipi(). Add it. This fixes the following compilation error: kernel/irq/ipi.c: In function ‘irq_reserve_ipi’: kernel/irq/ipi.c:85:9: error: too few arguments to function ‘__irq_domain_alloc_irqs’ virq = __irq_domain_alloc_irqs(domain, virq, nr_irqs, NUMA_NO_NODE, ^ Fixes: 06ee6d571f0e ("genirq: Add affinity hint to irq allocation") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: linux-pci@vger.kernel.org Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-19clockevents: Make clockevents_subsys staticBen Dooks
The clockevents_subsys struct is used for sysfs support and is not declared or used outside the file it is defined in. Fix the following warning by making it static: kernel/time/clockevents.c:648:17: warning: symbol 'clockevents_subsys' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Cc: linux-kernel@lists.codethink.co.uk Link: http://lkml.kernel.org/r/1466178974-7105-1-git-send-email-ben.dooks@codethink.co.uk Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-07-19watchdog: sbsa: Drop status functionGuenter Roeck
The watchdog status function is supposed to return WDIOF_ flags, not internal status flags. The available WDIOF_ flags are now returned by the watchdog core, so the status function in this driver is unnecessary. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-19watchdog: Implement status function in watchdog coreGuenter Roeck
Up to now, the watchdog status function called a driver function, which was supposed to return the watchdog status. All but one driver using the watchdog core did not implement this function, and the driver implementing it did not implement it correctly (the function is supposed to return WDIOF_ flags). At the same time, at least some of the status information can be provided by the watchdog core. Provide the available status bits directly from the watchdog driver core. Call the driver status function if it exists to get the boot status, but always provide WDIOF_MAGICCLOSE and WDIOF_KEEPALIVEPING internally. This patch makes the 'status' sysfs attribute always available. This attribute is now displayed as hex number with 0x prepended to be easier to decode. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2016-07-19Merge tag 'topic/kbl-4.7-fixes-2016-07-18' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes As promised here's the pile of kbl cherry-picks assembled by Mika&Rodrigo. It's a bit much, but all well-contained to kbl code and been tested for a while in drm-intel-next. Still separate in case too much, but in that case I think we'd need to disable kbl by default again (which would be annoying too) in 4.7. * tag 'topic/kbl-4.7-fixes-2016-07-18' of git://anongit.freedesktop.org/drm-intel: (28 commits) drm/i915/kbl: Introduce the first official DMC for Kabylake. drm/i915: Introduce Kabypoint PCH for Kabylake H/DT. drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance drm/i195/fbc: Add WaFbcNukeOnHostModify drm/i915/gen9: Add WaFbcWakeMemOn drm/i915/gen9: Add WaFbcTurnOffFbcWatermark drm/i915/kbl: Add WaClearSlmSpaceAtContextSwitch drm/i915/gen9: Add WaEnableChickenDCPR drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing drm/i915/kbl: Add WaDisableGafsUnitClkGating drm/i915/kbl: Add WaForGAMHang drm/i915: Add WaInsertDummyPushConstP for bxt and kbl drm/i915/kbl: Add WaDisableDynamicCreditSharing drm/i915/kbl: Add WaDisableGamClockGating drm/i915/gen9: Enable must set chicken bits in config0 reg drm/i915/kbl: Add WaDisableLSQCROPERFforOCL drm/i915/kbl: Add WaDisableSDEUnitClockGating drm/i915/kbl: Add WaDisableFenceDestinationToSLM for A0 drm/i915/kbl: Add WaEnableGapsTsvCreditFix ...
2016-07-19irqchip/armada: Avoid unused function warningsArnd Bergmann
When building with CONFIG_SMP disabled, we get some new harmless warnings: drivers/irqchip/irq-armada-370-xp.c:356:12: error: 'mpic_cascaded_starting_cpu' defined but not used [-Werror=unused-function] static int mpic_cascaded_starting_cpu(unsigned int cpu) ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/irqchip/irq-armada-370-xp.c:349:12: error: 'armada_xp_mpic_starting_cpu' defined but not used [-Werror=unused-function] static int armada_xp_mpic_starting_cpu(unsigned int cpu) This moves the unused functions into the #ifdef, as they previously were. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Jason Cooper <jason@lakedaemon.net> Cc: David S. Miller <davem@davemloft.net> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Richard Cochran <rcochran@linutronix.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Fixes: cb5ff2d245c1 ("irqchip/armada-370-xp: Convert to hotplug state machine") Link: http://lkml.kernel.org/r/20160718160335.3134412-1-arnd@arndb.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-19crypto: vmx - Adding support for XTSLeonidas S. Barbosa
This patch add XTS support using VMX-crypto driver. Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19crypto: vmx - Adding asm subroutines for XTSPaulo Flabiano Smorigo
This patch add XTS subroutines using VMX-crypto driver. It gives a boost of 20 times using XTS. These code has been adopted from OpenSSL project in collaboration with the original author (Andy Polyakov <appro@openssl.org>). Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19crypto: skcipher - Add comment for skcipher_alg->baseHerbert Xu
This patch adds a missing comment for the base parameter in struct skcipher_alg. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19crypto: testmgr - Print akcipher algorithm nameHerbert Xu
When an akcipher test fails, we don't know which algorithm failed because the name is not printed. This patch fixes this. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19crypto: marvell - Fix wrong flag used for GFP in mv_cesa_dma_add_iv_opRomain Perier
Use the parameter 'gfp_flags' instead of 'flag' as second argument of dma_pool_alloc(). The parameter 'flag' is for the TDMA descriptor, its content has no sense for the allocator. Fixes: bac8e805a30d ("crypto: marvell - Copy IV vectors by DMA...") Signed-off-by: Romain Perier <romain.perier@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-07-19m68k/defconfig: Update defconfigs for v4.7-rc2Geert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2016-07-19fuse: don't mess with blocking signalsAl Viro
just use wait_event_killable{,_exclusive}(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-19new helper: wait_event_killable_exclusive()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-07-19Merge tag 'perf-core-for-mingo-20160718' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Properly report when a function wildcard produces no matches in 'perf probe' (Masami Hiramatsu) - Balance opening and reading events in 'perf stat', which could cause it to get stuck trying to close invalid file descriptors (Mark Rutland) Infrastructure changes: - Copy more headers from the kernel, this time for headers that were just including the contents of its kernel counterparts, should help resolving the problems with linux-next, where some uapi related patches seem to be breaking tools/object/ build. (Arnaldo Carvalho de Melo) Some more combing will be done, but at least it is possible to build perf out of tree, via a detached tarball (make help | grep perf), without including kernel files in its MANIFEST (Arnaldo Carvalho de Melo) - Fix smatch found errors that were not causing problems, but are mistakes nonetheless (Dan Carpenter) - Fix string vs. byte array resolving in the python script code (Jiri Olsa) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-19Merge tag 'drm-intel-fixes-2016-07-18' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes Two more regression fixes for 4.7. * tag 'drm-intel-fixes-2016-07-18' of git://anongit.freedesktop.org/drm-intel: drm/i915: add missing condition for committing planes on crtc drm/i915: Treat eDP as always connected, again
2016-07-18sctp: load transport header after sk_filterWillem de Bruijn
Do not cache pointers into the skb linear segment across sk_filter. The function call can trigger pskb_expand_head. Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-18net/sched/sch_htb: clamp xstats tokens to fit into 32-bit intKonstantin Khlebnikov
In kernel HTB keeps tokens in signed 64-bit in nanoseconds. In netlink protocol these values are converted into pshed ticks (64ns for now) and truncated to 32-bit. In struct tc_htb_xstats fields "tokens" and "ctokens" are declared as unsigned 32-bit but they could be negative thus tool 'tc' prints them as signed. Big values loose higher bits and/or become negative. This patch clamps tokens in xstat into range from INT_MIN to INT_MAX. In this way it's easier to understand what's going on here. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-18macvtap: correctly free skb during socket destructionJason Wang
We should use kfree_skb() instead of kfree() to free an skb. Fixes: 362899b8725b ("macvtap: switch to use skb array") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-19i2c: efm32: fix a failure path in efm32_i2c_probe()Alexey Khoroshilov
There is the only failure path in efm32_i2c_probe(), where clk_disable_unprepare() is missed. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Fixes: 1b5b23718b84 ("i2c: efm32: new bus driver") Cc: stable@kernel.org
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