- 26 Jan, 2015 10 commits
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Magnus Damm authored
Add r8a7779 specific support for IRLM bit configuration in the INTC-IRQPIN driver. Without this code we need special workaround code in arch/arm/mach-shmobile. The IRLM bit for the INTC hardware exists on various older SH-based SoCs and is used to select between two modes for the external interrupt pins IRQ0 to IRQ3: IRLM = 0: (default from reset on r8a7779) In this mode the pins IRQ0 to IRQ3 are used together to give a value between 0 and 15 to the SoC. External logic is required for masking. This mode is not supported by the INTC-IRQPIN driver. IRLM = 1: (needs this patch or configuration elsewhere) In this mode IRQ0 to IRQ3 operate as 4 individual external interrupt pins. In this mode the SMSC ethernet chip can be used via IRQ1 on r8a7779 Marzen. This mode is the only supported mode by the INTC-IRQPIN driver. For this patch to work the r8a7779 DTS needs to pass the ICR0 register as the last register bank. Signed-off-by: Magnus Damm <damm+renesas@opensource.se> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: horms@verge.net.au Cc: jason@lakedaemon.net Link: http://lkml.kernel.org/r/20141203121803.5936.35881.sendpatchset@w520Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Thomas Gleixner authored
Reason: Pull in upstream fixes on which new patches depend on.
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "Hopefully the last round of fixes for 3.19 - regression fix for the LDT changes - regression fix for XEN interrupt handling caused by the APIC changes - regression fixes for the PAT changes - last minute fixes for new the MPX support - regression fix for 32bit UP - fix for a long standing relocation issue on 64bit tagged for stable - functional fix for the Hyper-V clocksource tagged for stable - downgrade of a pr_err which tends to confuse users Looks a bit on the large side, but almost half of it are valuable comments" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/tsc: Change Fast TSC calibration failed from error to info x86/apic: Re-enable PCI_MSI support for non-SMP X86_32 x86, mm: Change cachemode exports to non-gpl x86, tls: Interpret an all-zero struct user_desc as "no segment" x86, tls, ldt: Stop checking lm in LDT_empty x86, mpx: Strictly enforce empty prctl() args x86, mpx: Fix potential performance issue on unmaps x86, mpx: Explicitly disable 32-bit MPX support on 64-bit kernels x86, hyperv: Mark the Hyper-V clocksource as being continuous x86: Don't rely on VMWare emulating PAT MSR correctly x86, irq: Properly tag virtualization entry in /proc/interrupts x86, boot: Skip relocs when load address unchanged x86/xen: Override ACPI IRQ management callback __acpi_unregister_gsi ACPI: pci: Do not clear pci_dev->irq in acpi_pci_irq_disable() x86/xen: Treat SCI interrupt as normal GSI interrupt
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "From the irqchip departement you get: - regression fix for omap-intc - regression fix for atmel-aic-common - functional correctness fix for hip04 - type mismatch fix for gic-v3-its - proper error pointer check for mtd-sysirq Mostly one and two liners except for the omap regression fix which is slightly larger than desired" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: atmel-aic-common: Prevent clobbering of priority when changing IRQ type irqchip: omap-intc: Fix legacy DMA regression irqchip: gic-v3-its: Fix use of max with decimal constant irqchip: hip04: Initialize hip04_cpu_map to 0xffff irqchip: mtk-sysirq: Use IS_ERR() instead of NULL pointer check
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer fixes from Thomas Gleixner: "A set of small fixes: - regression fix for exynos_mct clocksource - trivial build fix for kona clocksource - functional one liner fix for the sh_tmu clocksource - two validation fixes to prevent (root only) data corruption in the kernel via settimeofday and adjtimex. Tagged for stable" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: time: adjtimex: Validate the ADJ_FREQUENCY values time: settimeofday: Validate the values of tv from user clocksource: sh_tmu: Set cpu_possible_mask to fix SMP broadcast clocksource: kona: fix __iomem annotation clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds authored
Pull ARM SoC fixes from Olof Johansson: "A week's worth of fixes for various ARM platforms. Diff wise, the largest fix is for OMAP to deal with how GIC now registers interrupts (irq_domain_add_legacy() -> irq_domain_add_linear() changes). Besides this, a few more renesas platforms needed the GIC instatiation done for legacy boards. There's also a fix that disables coherency of mvebu due to issues, and a few other smaller fixes" * tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: add baud rate to Juno stdout-path ARM: dts: imx25: Fix PWM "per" clocks bus: mvebu-mbus: fix support of MBus window 13 Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes ARM: mvebu: completely disable hardware I/O coherency ARM: OMAP: Work around hardcoded interrupts ARM: shmobile: r8a7779: Instantiate GIC from C board code in legacy builds ARM: shmobile: r8a7778: Instantiate GIC from C board code in legacy builds arm: boot: dts: dra7: enable dwc3 suspend PHY quirk
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fixes from Al Viro: "A couple of fixes - deadlock in CIFS and build breakage in cris serial driver (resurfaced f_dentry in there)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: VFS: Convert file->f_dentry->d_inode to file_inode() fix deadlock in cifs_ioctl_clone()
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmLinus Torvalds authored
Pull device mapper fixes from Mike Snitzer: "Two stable fixes for dm-cache and one 3.19 DM core fix: - fix potential for dm-cache metadata corruption via stale metadata buffers being used when switching an inactive cache table to active; this could occur due to each table having it's own bufio client rather than sharing the client between tables. - fix dm-cache target to properly account for discard IO while suspending otherwise IO quiescing could complete prematurely. - fix DM core's handling of multiple internal suspends by maintaining an 'internal_suspend_count' and only resuming the device when this count drops to zero" * tag 'dm-3.19-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: fix handling of multiple internal suspends dm cache: fix problematic dual use of a single migration count variable dm cache: share cache-metadata object across inactive and active DM tables
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull two block layer fixes from Jens Axboe: "Two small patches that should make it into 3.19: - a fixup from me for NVMe, making the cq_vector a signed variable. Otherwise our -1 comparison fails, and commit 2b25d981 doesn't do what it was supposed to. - a fixup for the hotplug handling for blk-mq from Ming Lei, using the proper kobject referencing to ensure we release resources at the right time" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: fix hctx/ctx kobject use-after-free NVMe: cq_vector should be signed
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- 24 Jan, 2015 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
pULL SCSI fixes from James Bottomley: "This consists of four real fixes and three MAINTAINER updates. Three of the fixes are obvious (the DIX and atomic allocation are bug on and warn on fixes and the other is just trivial) and the ipr one is a bit more involved but is required because without it, the card double completes aborted commands and causes a kernel oops" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: MAINTAINERS: ibmvscsi driver maintainer change MAINTAINERS: ibmvfc driver maintainer change MAINTAINERS: Remove self as isci maintainer scsi_debug: test always evaluates to false, || should be used instead scsi: Avoid crashing if device uses DIX but adapter does not support it scsi_debug: use atomic allocation in resp_rsup_opcodes ipr: wait for aborted command responses
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git://www.linux-watchdog.org/linux-watchdogLinus Torvalds authored
Pull watchdog fixes from Wim Van Sebroeck: "This will fix reboot issues with the imx2_wdt driver and it also drops some forgotten owner assignments from platform_drivers" * git://www.linux-watchdog.org/linux-watchdog: watchdog: drop owner assignment from platform_drivers watchdog: imx2_wdt: Disable power down counter on boot watchdog: imx2_wdt: Improve power management support.
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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/stagingLinus Torvalds authored
Pull hwmon update from Jean Delvare: "This contains a single thing: a new driver for the temperature sensor embedded in the Intel 5500/5520/X58 chipsets. Sorry for the late request, it's been so long since I last sent a pull request and I've been so busy with other tasks meanwhile that I simply forgot about these patches. But given that this is a new driver, it can't introduce any regression so I thought it could still be OK. This has been in linux-next for months now" * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: hwmon: (i5500_temp) Convert to use ATTRIBUTE_GROUPS macro hwmon: (i5500_temp) Convert to module_pci_driver hwmon: (i5500_temp) Don't bind to disabled sensors hwmon: (i5500_temp) Convert to devm_hwmon_device_register_with_groups hwmon: (i5500_temp) New driver for the Intel 5500/5520/X58 chipsets
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: - fix some race conditions caused by a regression on videobuf2 - fix a interrupt release bug on cx23885 - fix support for Mygica T230 and HVR4400 - fix compilation breakage when USB is not selected on tlg2300 - fix capabilities report on ompa3isp, soc-camera, rcar_vin and pvrusb2 * tag 'media/v3.19-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: [media] omap3isp: Correctly set QUERYCAP capabilities [media] cx23885: fix free interrupt bug [media] pvrusb2: fix missing device_caps in querycap [media] vb2: fix vb2_thread_stop race conditions [media] rcar_vin: Update device_caps and capabilities in querycap [media] soc-camera: fix device capabilities in multiple camera host drivers [media] Fix Mygica T230 support [media] cx23885: Split Hauppauge WinTV Starburst from HVR4400 card entry [media] tlg2300: Fix media dependencies
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Mikulas Patocka authored
Commit ffcc3936 ("dm: enhance internal suspend and resume interface") attempted to handle multiple internal suspends on the same device, but it did that incorrectly. When these functions are called in this order on the same device the device is no longer suspended, but it should be: dm_internal_suspend_noflush dm_internal_suspend_noflush dm_internal_resume Fix this bug by maintaining an 'internal_suspend_count' and resuming the device when this count drops to zero. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Axel Lin authored
Use ATTRIBUTE_GROUPS macro to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Jean Delvare <jdelvare@suse.de>
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Axel Lin authored
Use module_pci_driver to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Jean Delvare <jdelvare@suse.de>
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Jean Delvare authored
On many motherboards, for an unknown reason, the thermal sensor seems to be disabled and will return a constant temperature value of 36.5 degrees Celsius. Don't bind to the device in that case, so that we don't report this bogus value to userspace. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Romain Dolbeau <romain@dolbeau.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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Jean Delvare authored
Use devm_hwmon_device_register_with_groups() to simplify the code a bit. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Romain Dolbeau <romain@dolbeau.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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Jean Delvare authored
The Intel 5500, 5520 and X58 chipsets embed a digital thermal sensor. This new driver supports it. Note that on many boards the sensor seems to be disabled and reports the minimum value (36.5 degrees Celsius) all the time. Signed-off-by: Jean Delvare <jdelvare@suse.de> Tested-by: Romain Dolbeau <romain@dolbeau.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixes from Chris Mason: "We have a few fixes in my for-linus branch. Qu Wenruo's batch fix a regression between some our merge window pull and the inode_cache feature. The rest are smaller bugs" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: Don't call btrfs_start_transaction() on frozen fs to avoid deadlock. btrfs: Fix the bug that fs_info->pending_changes is never cleared. btrfs: fix state->private cast on 32 bit machines Btrfs: fix race deleting block group from space_info->ro_bgs list Btrfs: fix incorrect freeing in scrub_stripe btrfs: sync ioctl, handle errors after transaction start
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- 23 Jan, 2015 19 commits
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Linus Torvalds authored
Merge tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull platform driver fix from Darren Hart: "Revert keyboard backlight sysfs support and documentation. The support for the dell-laptop keyboard backlight was flawed and the fix: https://lkml.org/lkml/2015/1/14/539 was more invasive that I felt comfortable sending at RC5. This series reverts the support for the dell-laptop keyboard backlight as well as the documentation for the newly created sysfs attributes. We'll get this implemented correctly for 3.20" * tag 'platform-drivers-x86-v3.19-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: Revert "platform: x86: dell-laptop: Add support for keyboard backlight" Revert "Documentation: Add entry for dell-laptop sysfs interface"
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pciLinus Torvalds authored
Pull PCI fixes from Bjorn Helgaas: "These are fixes for: - a resource management problem that causes a Radeon "Fatal error during GPU init" on machines where the BIOS programmed an invalid Root Port window. This was a regression in v3.16. - an Atheros AR93xx device that doesn't handle PCI bus resets correctly. This was a regression in v3.14. - an out-of-date email address" * tag 'pci-v3.19-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: MAINTAINERS: Update Richard Zhu's email address sparc/PCI: Clip bridge windows to fit in upstream windows powerpc/PCI: Clip bridge windows to fit in upstream windows parisc/PCI: Clip bridge windows to fit in upstream windows mn10300/PCI: Clip bridge windows to fit in upstream windows microblaze/PCI: Clip bridge windows to fit in upstream windows ia64/PCI: Clip bridge windows to fit in upstream windows frv/PCI: Clip bridge windows to fit in upstream windows alpha/PCI: Clip bridge windows to fit in upstream windows x86/PCI: Clip bridge windows to fit in upstream windows PCI: Add pci_claim_bridge_resource() to clip window if necessary PCI: Add pci_bus_clip_resource() to clip to fit upstream window PCI: Pass bridge device, not bus, when updating bridge windows PCI: Mark Atheros AR93xx to avoid bus reset PCI: Add flag for devices where we can't use bus reset
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git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linuxLinus Torvalds authored
Pull devicetree bug fixes and documentation updates from Grant Likely: "A few bugfixes for the new DT overlay feature, documentation updates, spelling corrections, and changes to MAINTAINERS. Nothing earth shattering here" * tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux: of/unittest: Overlays with sub-devices tests of/platform: Handle of_populate drivers in notifier of/overlay: Do not generate duplicate nodes devicetree: document the "qemu" and "virtio" vendor prefixes devicetree: document ARM bindings for QEMU's Firmware Config interface Documentation: of: fix typo in graph bindings dma-mapping: fix debug print to display correct dma_pfn_offset of: replace Asahi Kasei Corp vendor prefix ARM: dt: GIC: Spelling s/specific/specifier/, s/flaggs/flags/ dt/bindings: arm-boards: Spelling s/pointong/pointing/ MAINTAINERS: Update DT website and git repository MAINTAINERS: drop DT regex matching on of_get_property and of_match_table
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Olof Johansson authored
Merge tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes Merge "ARM: imx: fixes for 3.19, 2nd round" from Shawn Guo: The i.MX fixes for 3.19, 2nd round: - Correct pwm clock assignment in i.MX25 device tree to fix the broken pwm support on i.MX25 * tag 'imx-fixes-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: imx25: Fix PWM "per" clocks Signed-off-by: Olof Johansson <olof@lixom.net>
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Robin Murphy authored
Without explicit command-line parameters, the Juno UART ends up running at 57600 baud in the kernel, which is at odds with the 115200 baud used by the rest of the firmware. Since commit 7914a7c5 now lets us fix this by specifying default options in stdout-path, do so. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.infradead.org/linux-mvebuOlof Johansson authored
Merge "mvebu/fixes #3" from Andrew Lunn: mvebu fixes for 3.19. (Part 4) bus: mvebu-mbus: fix support of MBus window 13 * tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu: bus: mvebu-mbus: fix support of MBus window 13 ARM: mvebu: completely disable hardware I/O coherency Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fixes from Paolo Bonzini: "Three small fixes. Two for x86 and one avoids that sparse bails out" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: SYSENTER emulation is broken KVM: x86: Fix of previously incomplete fix for CVE-2014-8480 KVM: fix sparse warning in include/trace/events/kvm.h
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git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "Another round of small ARM fixes. restore_user_regs early stack deallocation is buggy in the presence of FIQs which switch to SVC mode, and could lead to corrupted registers being returned to a user process given an inopportune FIQ event. Another bug was spotted in the ARM perf code where it could lose track of perf counter overflows, leading to incorrect perf results. Lastly, a bug in arm_add_memory() was spotted where the memory sizes aren't properly rounded. As most people pass properly rounded sizes, this hasn't been noticed" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8292/1: mm: fix size rounding-down of arm_add_memory() function ARM: 8255/1: perf: Prevent wraparound during overflow ARM: 8266/1: Remove early stack deallocation from restore_user_regs
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull two arm64 fixes from Will Deacon: "Arm64 fixes seem to come in pairs recently. We've got a fix for removing device-tree blobs when doing a make clean and another one addressing a missing include, which fixes build failures in -next for allmodconfig (spotted by Mark's buildbot). Summary from signed tag: - fix cleaning of .dtbs following directory restructuring - fix allmodconfig build breakage in -next due to missing include" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: dump: Fix implicit inclusion of definition for PCI_IOBASE arm64: Add dtb files to archclean rule
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Darren Hart authored
This reverts commit 02b2aaaa. This interface was determined to be flawed and required too invasive a fix for the RC cycle. This will be revisited in 3.20. Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Darren Hart authored
This reverts commit 3161293b. This interface was determined to be flawed and required too invasive a fix for the RC cycle. This will be revisited in 3.20. Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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Joe Thornber authored
Introduce a new variable to count the number of allocated migration structures. The existing variable cache->nr_migrations became overloaded. It was used to: i) track of the number of migrations in flight for the purposes of quiescing during suspend. ii) to estimate the amount of background IO occuring. Recent discard changes meant that REQ_DISCARD bios are processed with a migration. Discards are not background IO so nr_migrations was not incremented. However this could cause quiescing to complete early. (i) is now handled with a new variable cache->nr_allocated_migrations. cache->nr_migrations has been renamed cache->nr_io_migrations. cleanup_migration() is now called free_io_migration(), since it decrements that variable. Also, remove the unused cache->next_migration variable that got replaced with with prealloc_structs a while ago. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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Joe Thornber authored
If a DM table is reloaded with an inactive table when the device is not suspended (normal procedure for LVM2), then there will be two dm-bufio objects that can diverge. This can lead to a situation where the inactive table uses bufio to read metadata at the same time the active table writes metadata -- resulting in the inactive table having stale metadata buffers once it is promoted to the active table slot. Fix this by using reference counting and a global list of cache metadata objects to ensure there is only one metadata object per metadata device. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
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Pantelis Antoniou authored
Introduce selftests for overlays using sub-devices present in children nodes. Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Grant Likely <grant.likely@linaro.org>
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Nadav Amit authored
SYSENTER emulation is broken in several ways: 1. It misses the case of 16-bit code segments completely (CVE-2015-0239). 2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can still be set without causing #GP). 3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in legacy-mode. 4. There is some unneeded code. Fix it. Cc: stable@vger.linux.org Signed-off-by: Nadav Amit <namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Nadav Amit authored
STR and SLDT with rip-relative operand can cause a host kernel oops. Mark them as DstMem as well. Cc: stable@vger.linux.org Signed-off-by: Nadav Amit <namit@cs.technion.ac.il> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Mark Brown authored
Since c9465b4e (arm64: add support to dump the kernel page tables) allmodconfig has failed to build on arm64 as a result of: ../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function) Fix this by explicitly including io.h to ensure that a definition is present. Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
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Jesse Brandeburg authored
Problem: The default behavior of the kernel is somewhat undesirable as all requested interrupts end up on CPU0 after registration. A user can run irqbalance daemon, or can manually configure smp_affinity via the proc filesystem, but the default affinity of the interrupts for all devices is always CPU zero, this can cause performance problems or very heavy cpu use of only one core if not noticed and fixed by the user. Solution: Enable the setting of the initial affinity directly when the driver sets a hint. This enabling means that kernel drivers can include an initial affinity setting for the interrupt, instead of all interrupts starting out life on CPU0. Of course if irqbalance is still running then the interrupts will get moved as before. This function is currently called by drivers in block, crypto, infiniband, ethernet and scsi trees, but only a handful, so these will be the devices affected by this change. Tested on i40e, and default interrupts were spread across the CPUs according to the hint. drivers/block/mtip32xx/mtip32xx.c:3 drivers/block/nvme-core.c:2 drivers/crypto/qat/qat_dh895xcc/adf_isr.c:3 drivers/infiniband/hw/qib/qib_iba7322.c:2 drivers/net/ethernet/intel/i40e/i40e_main.c:3 drivers/net/ethernet/intel/i40evf/i40evf_main.c:3 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3 drivers/net/ethernet/mellanox/mlx4/en_cq.c:2 drivers/scsi/hpsa.c:3 drivers/scsi/lpfc/lpfc_init.c:3 drivers/scsi/megaraid/megaraid_sas_base.c:8 drivers/soc/ti/knav_qmss_acc.c:1 drivers/soc/ti/knav_qmss_queue.c:2 drivers/virtio/virtio_pci_common.c:2 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: netdev@vger.kernel.org Link: http://lkml.kernel.org/r/20141219012206.4220.27491.stgit@jbrandeb-cp2.jf.intel.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>
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Alexandre Demers authored
Many users see this message when booting without knowning that it is of no importance and that TSC calibration may have succeeded by another way. As explained by Paul Bolle in http://lkml.kernel.org/r/1348488259.1436.22.camel@x61.thuisdomein "Fast TSC calibration failed" should not be considered as an error since other calibration methods are being tried afterward. At most, those send a warning if they fail (not an error). So let's change the message from error to warning. [ tglx: Make if pr_info. It's really not important at all ] Fixes: c767a54b x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level> Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1418106470-6906-1-git-send-email-alexandre.f.demers@gmail.comSigned-off-by: Thomas Gleixner <tglx@linutronix.de>
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