- 20 Aug, 2012 3 commits
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
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- 19 Aug, 2012 17 commits
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David S. Miller authored
Describe how we support two types of PMU setups, one with a single control register and two counters stored in a single register, and another with one control register per counter and each counter living in it's own register. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
When cpuc->n_events is zero, we actually don't do anything and we just write the cpuc->pcr[0] value as-is without any modifications. The "pcr = 0;" assignment there was just useless and confusing. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Make the per-cpu pcr save area an array instead of one u64. Describe how many PCR and PIC registers the chip has in the sparc_pmu descriptor. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Now specified in sparc_pmu descriptor. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Starting with SPARC-T4 we have a seperate PCR control register for each performance counter, and there are absolutely no restrictions on what events can run on which counters. Add flags that we can use to elide the conflict and dependency logic used to handle older chips. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This is enough to get the NMIs working, more work is needed for perf events. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
We assumed PCR_PIC_PRIV can always be used to disable it, but that won't be true for SPARC-T4. This allows us also to get rid of some messy defines used in only one location. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
And, like for the PCR, allow indexing of different PIC register numbers. This also removes all of the non-__KERNEL__ bits from asm/perfctr.h, nothing kernel side should include it any more. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
SPARC-T4 and later have multiple PCR registers, one for each PIC counter. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Unlike for previous chips, access to the perf-counter control registers are all hyper-privileged. Therefore, access to them must go through a hypervisor interface. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Compare and branch, pause, and the various new cryptographic opcodes. We advertise the crypto opcodes to userspace using one hwcap bit, HWCAP_SPARC_CRYPTO. This essentially indicates that the %cfr register can be interrograted and used to determine exactly which crypto opcodes are available on the current cpu. We use the %cfr register to report all of the crypto opcodes available in the bootup CPU caps log message, and via /proc/cpuinfo. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 18 Aug, 2012 4 commits
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git://git.linaro.org/people/rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "The largest thing in this set of changes is bringing back some of the ARMv3 code to fix a compile problem noticed on RiscPC, which we still support, even though we only support ARMv4 there. (The reason is that the system bus doesn't support ARMv4 half-word accesses, so we need the ARMv3 library code for this platform.) The rest are all quite minor fixes." * 'fixes' of git://git.linaro.org/people/rmk/linux-arm: ARM: 7490/1: Drop duplicate select for GENERIC_IRQ_PROBE ARM: Bring back ARMv3 IO and user access code ARM: 7489/1: errata: fix workaround for erratum #720789 on UP systems ARM: 7488/1: mm: use 5 bits for swapfile type encoding ARM: 7487/1: mm: avoid setting nG bit for user mappings that aren't present ARM: 7486/1: sched_clock: update epoch_cyc on resume ARM: 7484/1: Don't enable GENERIC_LOCKBREAK with ticket spinlocks ARM: 7483/1: vfp: only advertise VFPv4 in hwcaps if CONFIG_VFPv3 is enabled ARM: 7482/1: topology: fix section mismatch warning for init_cpu_topology
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management fixes from Rafael J. Wysocki: - Fixes for three obscure problems in the runtime PM core code found recently. - Two fixes for the new "coupled" cpuidle code from Colin Cross and Jon Medhurst. - intel_idle driver fix from Konrad Rzeszutek Wilk. * tag 'pm-for-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: intel_idle: Check cpu_idle_get_driver() for NULL before dereferencing it. cpuidle: Prevent null pointer dereference in cpuidle_coupled_cpu_notify cpuidle: coupled: fix sleeping while atomic in cpu notifier PM / Runtime: Check device PM QoS setting before "no callbacks" check PM / Runtime: Clear power.deferred_resume on success in rpm_suspend() PM / Runtime: Fix rpm_resume() return value for power.no_callbacks set
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfsLinus Torvalds authored
Pull vfs fixes from Miklos Szeredi. This mainly fixes some confusion about whether the open 'mode' variable passed around should contain the full file type (S_IFREG etc) information or just the permission mode. In particular, the lack of proper file type information had confused fuse. * 'vfs-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: vfs: fix propagation of atomic_open create error on negative dentry fuse: check create mode in atomic open vfs: pass right create mode to may_o_create() vfs: atomic_open(): fix create mode usage vfs: canonicalize create mode in build_open_flags()
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git://neil.brown.name/mdLinus Torvalds authored
Pull md fixes from NeilBrown: "2 fixes for md, tagged for -stable" * tag 'md-3.6-fixes' of git://neil.brown.name/md: md/raid10: fix problem with on-stack allocation of r10bio structure. md: Don't truncate size at 4TB for RAID0 and Linear
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- 17 Aug, 2012 16 commits
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NeilBrown authored
A 'struct r10bio' has an array of per-copy information at the end. This array is declared with size [0] and r10bio_pool_alloc allocates enough extra space to store the per-copy information depending on the number of copies needed. So declaring a 'struct r10bio on the stack isn't going to work. It won't allocate enough space, and memory corruption will ensue. So in the two places where this is done, declare a sufficiently large structure and use that instead. The two call-sites of this bug were introduced in 3.4 and 3.5 so this is suitable for both those kernels. The patch will have to be modified for 3.4 as it only has one bug. Cc: stable@vger.kernel.org Reported-by: Ivan Vasilyev <ivan.vasilyev@gmail.com> Tested-by: Ivan Vasilyev <ivan.vasilyev@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
Pull infiniband/rdma fixes from Roland Dreier: "Grab bag of InfiniBand/RDMA fixes: - IPoIB fixes for regressions introduced by path database conversion - mlx4 fixes for bugs with large memory systems and regressions from SR-IOV patches - RDMA CM fix for passing bad event up to userspace - Other minor fixes" * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mlx4: Check iboe netdev pointer before dereferencing it mlx4_core: Clean up buddy bitmap allocation mlx4_core: Fix integer overflow issues around MTT table mlx4_core: Allow large mlx4_buddy bitmaps IB/srp: Fix a race condition IB/qib: Fix error return code in qib_init_7322_variables() IB: Fix typos in infiniband drivers IB/ipoib: Fix RCU pointer dereference of wrong object IB/ipoib: Add missing locking when CM object is deleted RDMA/ucma.c: Fix for events with wrong context on iWARP RDMA/ocrdma: Don't call vlan_dev_real_dev() for non-VLAN netdevs IB/mlx4: Fix possible deadlock on sm_lock spinlock
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull TTY fixes from Greg Kroah-Hartman: "Here are 4 tiny patches, each fixing a serial driver problem that people have reported. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'tty-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: pmac_zilog,kdb: Fix console poll hook to return instead of loop serial: mxs-auart: fix the wrong RTS hardware flow control serial: ifx6x60: fix paging fault on spi_register_driver serial: Change Kconfig entry for CLPS711X-target
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Konrad Rzeszutek Wilk authored
If the machine is booted without any cpu_idle driver set (b/c disable_cpuidle() has been called) we should follow other users of cpu_idle API and check the return value for NULL before using it. Reported-and-tested-by: Mark van Dijk <mark@internecto.net> Suggested-by: Jan Beulich <JBeulich@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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Jon Medhurst (Tixy) authored
When a kernel is built to support multiple hardware types it's possible that CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is set but the hardware the kernel is run on doesn't support cpuidle and therefore doesn't load a driver for it. In this case, when the system is shut down, cpuidle_coupled_cpu_notify() gets called with cpuidle_devices set to NULL. There are quite possibly other circumstances where this situation can also occur and we should check for it. Signed-off-by: Jon Medhurst <tixy@linaro.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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Colin Cross authored
The cpu hotplug notifier gets called in both atomic and non-atomic contexts, it is not always safe to lock a mutex. Filter out all events except the six necessary ones, which are all sleepable, before taking the mutex. Signed-off-by: Colin Cross <ccross@android.com> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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Rafael J. Wysocki authored
If __dev_pm_qos_read_value(dev) returns a negative value, rpm_suspend() should return -EPERM for dev even if its power.no_callbacks flag is set. For this to happen, the device's power.no_callbacks flag has to be checked after the PM QoS check, so move the PM QoS check to rpm_check_suspend_allowed() (this will make it cover idle notifications as well as runtime suspend too). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable@vger.kernel.org
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Rafael J. Wysocki authored
The power.deferred_resume can only be set if the runtime PM status of device is RPM_SUSPENDING and it should be cleared after its status has been changed, regardless of whether or not the runtime suspend has been successful. However, it only is cleared on suspend failure, while it may remain set on successful suspend and is happily leaked to rpm_resume() executed in that case. That shouldn't happen, so if power.deferred_resume is set in rpm_suspend() after the status has been changed to RPM_SUSPENDED, clear it before calling rpm_resume(). Then, it doesn't need to be cleared before changing the status to RPM_SUSPENDING any more, because it's always cleared after the status has been changed to either RPM_SUSPENDED (on success) or RPM_ACTIVE (on failure). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable@vger.kernel.org
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Rafael J. Wysocki authored
For devices whose power.no_callbacks flag is set, rpm_resume() should return 1 if the device's parent is already active, so that the callers of pm_runtime_get() don't think that they have to wait for the device to resume (asynchronously) in that case (the core won't queue up an asynchronous resume in that case, so there's nothing to wait for anyway). Modify the code accordingly (and make sure that an idle notification will be queued up on success, even if 1 is to be returned). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging fixes from Greg Kroah-Hartman: "Here are some staging driver fixes (and iio driver fixes, they get lumped in with the staging stuff due to dependancies) for your 3.6-rc3 tree. Nothing major, just a bunch of fixes that people have reported. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'staging-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (26 commits) iio: lm3533-als: Fix build warnings staging:iio:ad7780: Mark channels as unsigned staging:iio:ad7192: Report offset and scale for temperature channel staging:iio:ad7192: Report channel offset staging:iio:ad7192: Mark channels as unsigned staging:iio:ad7192: Fix setting ACX staging:iio:ad7192: Add missing break in switch statement staging:iio:ad7793: Fix internal reference value staging:iio:ad7793: Follow new IIO naming spec staging:iio:ad7793: Fix temperature scale and offset staging:iio:ad7793: Report channel offset staging:iio:ad7793: Mark channels as unsigned staging:iio:ad7793: Add missing break in switch statement iio/adjd_s311: Fix potential memory leak in adjd_s311_update_scan_mode() iio: frequency: ADF4350: Fix potential reference div factor overflow. iio: staging: ad7298_ring: Fix maybe-uninitialized warning staging: comedi: usbduxfast: Declare MODULE_FIRMWARE usage staging: comedi: usbdux: Declare MODULE_FIRMWARE usage staging: comedi: usbduxsigma: Declare MODULE_FIRMWARE usage staging: csr: add INET dependancy ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core fixes from Greg Kroah-Hartman: "Here are two tiny patches, one fixing a dynamic debug problem that the printk rework turned up, and the other one fixing an extcon problem that people reported. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'driver-core-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: extcon: extcon_gpio: Replace gpio_request_one by devm_gpio_request_one drivers-core: make structured logging play nice with dynamic-debug
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull Char / Misc driver fixes from Greg Kroah-Hartman: "Here are some small misc and w1 driver fixes for 3.6-rc3. Nothing major, just some some bugfixes and a new device id for a w1 driver. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'char-misc-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: 1-Wire: Add support for the maxim ds1825 temperature sensor ti-st: Fix check for pdata->chip_awake function pointer mei: add mei_quirk_probe function mei: fix device stall after wd is stopped
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB patches from Greg Kroah-Hartman: "Here are a number of small USB patches for 3.6-rc3. The "large" one is just a number of device id updates to the option driver, done by the manufacturer, properly fixing up the device ids based on shipping devices. Other than that, some gadget driver fixes, the obligitary XHCI patches, and some other device ids and bugs fixed. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" * tag 'usb-3.6-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits) USB: qcserial: fix port handling on Gobi 1K and 2K+ USB: serial: Fix mos7840 timeout USB: option: add ZTE K5006-Z usb: gadget: u_ether: fix kworker 100% CPU issue with still used interfaces in eth_stop usb: host: tegra: fix warning messages in ehci_remove usb: host: mips: sead3: Update for EHCI register structure. usb: renesas_usbhs: fixup resume method for autonomy mode usb: renesas_usbhs: mod_host: add missing .bus_suspend/resume update MAINTAINERS for Oliver Neukum usb: usb_wwan: resume/suspend can be called after port is gone usb: serial: prevent suspend/resume from racing against probe/remove usb: usb_wwan: replace release and disconnect with a port_remove hook usb: serial: mos7840: Fixup mos7840_chars_in_buffer() USB: isp1362-hcd.c: usb message always saved in case of underrun OMAP: USB : Fix the EHCI enumeration and core retention issue usb: chipidea: fix and improve dependencies if usb host or gadget support is built as module USB: support the new interfaces of Huawei Data Card devices in option driver USB: ftdi_sio: Add VID/PID for Kondo Serial USB xhci: Switch PPT ports to EHCI on shutdown. xhci: Fix bug after deq ptr set to link TRB. ...
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Randy Dunlap authored
Fix fatal error in scripts/kernel-doc by ignoring the "__weak" attribute: Error(drivers/pci/pci.c:2820): cannot understand prototype: 'char * __weak pcibios_setup(char *str) ' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-securityLinus Torvalds authored
Pull a Yama bugfix from James Morris. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: Yama: access task_struct->comm directly
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git://linux-c6x.org/git/projects/linux-c6x-upstreamingLinus Torvalds authored
Pull C6X atomic64 support from Mark Salter: "Enable atomic64 ops in C6X - define L1_CACHE_SHIFT - select GENERIC_ATOMIC64" * tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming: C6X: select GENERIC_ATOMIC64 C6X: add Lx_CACHE_SHIFT defines
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