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2015-08-04mei: me: d0i3: add flag to indicate D0i3 supportAlexander Usyskin3-3/+14
Detect d0i3 low power state during hw configuration, the value is set in HFS_1 pci config reigister. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: me: d0i3: add the control registersTomas Winkler1-5/+15
Starting with Intel Sunrisepoint (Skylake PCH) the MEI device supports D0i3 low power state. Add D0i3 control registers. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: hbm: add new error code MEI_CL_CONN_NOT_ALLOWEDAlexander Usyskin2-0/+3
The device can return error 5 (NOT_ALLOWED) on connection attempt. This error can happen if: 1. An another connection attempt is in progress 2. There is an attempt to connect a fixed (connectionless) client 3. The number of available connections is exceeded (new in HBM 2.0) We should not hit that error unless there is an internal book keeping hiccup except option (3), therefore we translate the error code to errno EBUSY; Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: add and call callback on notify eventAlexander Usyskin5-5/+55
Enable drivers on mei client bus to subscribe to asynchronous event notifications. Introduce events_mask to the existing callback infrastructure so it is possible to handle both RX and event notification. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: implement fasync for event notificationTomas Winkler5-4/+53
A process can be informed about client notification also via SIGIO with POLL_PRI event. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: support polling for event notificationTomas Winkler1-0/+8
Polling on priority events is translated on waiting for event notification. One need to enable notification prior for calling select or poll system call otherwise process will not wait. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: add async event notification ioctlsTomas Winkler4-1/+132
Add ioctl IOCTL_MEI_NOTIFY_SET for enabling and disabling async event notification. Add ioctl IOCTL_MEI_NOTIFY_GET for receiving and acking an event notification. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: add a handler that waits for notification on eventTomas Winkler4-1/+58
mei_cl_notify_get is to be called by a host client to wait, receive, and ack the event notification. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: add mei_cl_notify_request commandTomas Winkler4-4/+157
Add per client notification request infrastructure that allows client to enable or disable async event notification. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: enable async event notifications only from hbm version 2.0Tomas Winkler4-0/+14
Only FW version 2.0 and newer support the async event notification. For backward compatibility block the feature if the FW version is older then 2.0 Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: implement async notification hbm messagesTomas Winkler3-0/+145
Implement sending and reception handlers for the async event notification hbm commands. Add client notification book keeping data required for the messages notify_en to indicate whether notification is enabled notify_ev to indicate whether an event is pending Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: define async notification hbm commandsTomas Winkler1-0/+62
FW has gained new capability where a FW client can asynchronously notify the host that an event has occurred in its process. The notification doesn't provide any data and host may need to query further the FW client in order to get details of the event. Host can subscribe or unsubscribe to the event notification via designated HBM commands, and also the notification is carried on a new HBM command. This patch adds definitions of asynchronous notification HBM commands. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: disconnect on connection request timeoutAlexander Usyskin6-29/+95
For the FW with HBM version >= 2.0 we don't need to reset the whole device in case of a particular client failing to connect, it is enough to send disconnect a request to bring the device to the stable state. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: support for dynamic clientsTomas Winkler4-2/+144
HBM version 2.0 and above allows ME clients in the system to register/unregister after the system is fully initialized. Clients may be added or removed after enum_resp message was received 1. To preserve backward compatibility the driver can opt-in to receive client add messages by setting allow_add field in enum_req 2. A new client is added upon reception of MEI_HBM_ADD_CLIENT_REQ_CMD 3. A client is removed in a lazy manner when connection request respond with MEI_HBMS_CLIENT_NOT_FOUND status Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: link client devices instead of host clientsTomas Winkler5-310/+213
MEI bus was designed around nfc and was hard to extend. Instead of the hard coded way of adding the devices on the mei bus we scan the whole me client list and create a device for each eligible me client (mei_cl_bus_rescan); currently we support only clients with single connection and fixed address clients. NFC radio name detection is run as a fixup routine The patch replaces handling the device list based on struct me_cl to device list based on me_cl_devices. The creating a connection is pushed from the device creation time to device enablement. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: simplify how we build nfc bus nameTomas Winkler3-64/+55
Remove the dependency on struct ndev from the nfc device name creation function so it is possible to use it in a fixup routine Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: blacklist clients by number of connectionsTomas Winkler1-0/+19
Currently we support only clients with single connection and fixed address clients so all other clients are blacklisted Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: blacklist the nfc info clientTomas Winkler1-4/+19
Blacklist nfc info client which is only used for retrieval of the NFC radio version Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: enable running fixup routines before device registrationTomas Winkler4-16/+111
Split the device registration into allocation and device struct initialization, device setup, and the final device registration. This why it is possible to run fixups and quirks during the setup stage on an initialized device. Each fixup routine effects do_match flag. If the flag is set to false at the end the device won't be registered on the bus. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: add me client device list infrastructureTomas Winkler4-2/+10
Instead of holding the list of host clients (me_cl) we want to keep the list me client devices (mei_cl_device) This way we can create host to me client connection only when needed. Add list head to mei_cl_device and cl_bus_lock Add bus_added flag to the me client (mei_me_client) to track if the appropriate mei_cl_device was already created and is_added flag to mei_cl_device to track if it was already added to the device list across the bus rescans Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: add reference to bus device in struct mei_cl_clientTomas Winkler2-0/+20
Add reference to the bus device (mei_device) for easier access. To ensures that referencing cldev->bus is valid during cldev life time we increase the bus ref counter on a client device creation and drop it on the device release. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: revamp probe and remove functionsTomas Winkler1-11/+30
Instead of generating device id on the fly during probing we find the matching id entry on the device id table. Get bus the module reference counter so it cannot be unloaded after the driver has bounded to the client device Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: revamp device matchingTomas Winkler1-19/+44
mei_cl_device_match now calls mei_cl_device_find that returns the matching device id in the device id table. We will utilize the mei_cl_device_find during probing to locate the matching entry. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: report if event registration failedTomas Winkler1-1/+5
If event registeration has failed, the caller should know about it. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: don't enable events implicitly in device enableTomas Winkler1-3/+0
Do not enable events implicitly in mei_cl_enable_device, it should be done explicitly using mei_cl_register_event_cb so the events are enabled only when needed. The NFC drivers has been already using it that way so no need for further changes just remove the code from mei_cl_enable_device. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: rename uevent handler to mei_cl_device_ueventTomas Winkler1-2/+10
Rename mei_cl_uevent to mei_cl_device_uevent to match the naming convention of mei_cl_bus_type functions Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: move driver api functions at the start of the fileTomas Winkler1-262/+351
To make the file more organize move mei client driver api to the start of the file and add Kdoc. There are no functional changes in this patch. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: rename nfc.c to bus-fixup.cTomas Winkler2-1/+1
The bus-fixup.c will be a place for fixups and quirks for all types of me client devices. As for now it contians only the fixup for setting the nfc device name on the me client bus. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: bus: fix drivers and devices names confusionTomas Winkler3-176/+176
In the mei bus layer there is use of different variables of driver and device types with no clear naming convention. There are generic struct device and struct driver, then mei_cl_{device, driver}, and finally mei_device which in this context serves as a bus device. The patch sets following naming convention: the variables of type struct device remains dev the variables of type struct driver remains drv the variables of type struct mei_cl_device are now cldev the variables of type struct mei_cl_driver are now cldrv the variables of type struct mei_device are now bus, in bus layer context Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04mei: do not access freed cb in blocking writeAlexander Usyskin1-7/+9
The mei_cl_write function is giving up on a write cb ownership after it was sent or queued. The write cb is then freed in the completion handler. Especially during blocking write mei_cl_write function waits for the completion handler and then access the freed memory to fetch the written size. The quick fix is to store the buffer size prior to sending, the size is not altered during the flow. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04scripts/checkkconfigsymbols.py: support default statementsValentin Rothberg1-2/+7
Until now, checkkonfigsymbols.py did not check default statements for references on missing Kconfig symbols (i.e., undefined Kconfig options). Hence, add support to parse and check the Kconfig default statement. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04checkkconfigsymbols.py: colored outputValentin Rothberg1-6/+20
Color output to make it more readable. Symbols will be printed yellow, relevant commits (see --find) red. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Acked-by: Stefan Hengelein <stefan.hengelein@fau.de> Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-04checkkconfigsymbols.py: find relevant commitsValentin Rothberg1-0/+21
Add option -f/--find to find relevant commits when using the --diff option. --find is useful in case a user wants to check commits that potentially cause a Kconfig symbol to be missing. This is done via 'git log -G $SYMBOL' (i.e., to get a list of commits that change $SYMBOL). The relevant commits are printed below the "SYMBOL\tFILES" line, followed by an empty line to increase readability. Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Acked-by: Stefan Hengelein <stefan.hengelein@fau.de> Acked-by: Andreas Ruprecht <andreas.ruprecht@fau.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-29ARM: dts: qcom: Add dts changes for qcom coincell chargerTim Bird2-0/+16
Add framework for the coincell charger DT block in pm8941 file, and actual values for honami battery in the honami dts file. Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Reviewed-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-29ARM: qcom: Add coincell charger driverTim Bird3-0/+163
This driver is used to configure the coincell charger found in Qualcomm PMICs. The driver allows configuring the current-limiting resistor for the charger, as well as the voltage to apply to the coincell (or capacitor) when charging. Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Reviewed-by: Andy Gross <agross@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-29ARM: dts: qcom: Add binding for the qcom coincell chargerTim Bird1-0/+48
This binding is used to configure the driver for the coincell charger found in Qualcomm PMICs. Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Reviewed-by: Andy Gross <agross@codeaurora.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27misc: Drop owner assignment from i2c_driverKrzysztof Kozlowski9-9/+0
i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27char: misc: fix error pathSudip Mukherjee1-2/+4
Lets call remove_proc_entry() in the error path only if we have successfully created "misc" in procfs. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-27char: misc: remove redundant ifdefSudip Mukherjee1-2/+0
The check for CONFIG_PROC_FS is not required as the check is being done in proc_fs.h and incase CONFIG_PROC_FS is not defined then proc_create() is defined as NULL. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-26Linux 4.2-rc4v4.2-rc4Linus Torvalds1-1/+1
2015-07-26Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Thomas Gleixner: "A single fix for the intel cqm perf facility to prevent IPIs from interrupt context" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/cqm: Return cached counter value from IRQ context
2015-07-26Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds11-59/+81
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "This update contains: - the manual revert of the SYSCALL32 changes which caused a regression - a fix for the MPX vma handling - three fixes for the ioremap 'is ram' checks. - PAT warning fixes - a trivial fix for the size calculation of TLB tracepoints - handle old EFI structures gracefully This also contains a PAT fix from Jan plus a revert thereof. Toshi explained why the code is correct" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/pat: Revert 'Adjust default caching mode translation tables' x86/asm/entry/32: Revert 'Do not use R9 in SYSCALL32' commit x86/mm: Fix newly introduced printk format warnings mm: Fix bugs in region_is_ram() x86/mm: Remove region_is_ram() call from ioremap x86/mm: Move warning from __ioremap_check_ram() to the call site x86/mm/pat, drivers/media/ivtv: Move the PAT warning and replace WARN() with pr_warn() x86/mm/pat, drivers/infiniband/ipath: Replace WARN() with pr_warn() x86/mm/pat: Adjust default caching mode translation tables x86/fpu: Disable dependent CPU features on "noxsave" x86/mpx: Do not set ->vm_ops on MPX VMAs x86/mm: Add parenthesis for TLB tracepoint size calculation efi: Handle memory error structures produced based on old versions of standard
2015-07-26x86/mm/pat: Revert 'Adjust default caching mode translation tables'Thomas Gleixner1-3/+3
Toshi explains: "No, the default values need to be set to the fallback types, i.e. minimal supported mode. For WC and WT, UC is the fallback type. When PAT is disabled, pat_init() does update the tables below to enable WT per the default BIOS setup. However, when PAT is enabled, but CPU has PAT -errata, WT falls back to UC per the default values." Revert: ca1fec58bc6a 'x86/mm/pat: Adjust default caching mode translation tables' Requested-by: Toshi Kani <toshi.kani@hp.com> Cc: Jan Beulich <jbeulich@suse.de> Link: http://lkml.kernel.org/r/1437577776.3214.252.camel@hp.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-26perf/x86/intel/cqm: Return cached counter value from IRQ contextMatt Fleming1-0/+8
Peter reported the following potential crash which I was able to reproduce with his test program, [ 148.765788] ------------[ cut here ]------------ [ 148.765796] WARNING: CPU: 34 PID: 2840 at kernel/smp.c:417 smp_call_function_many+0xb6/0x260() [ 148.765797] Modules linked in: [ 148.765800] CPU: 34 PID: 2840 Comm: perf Not tainted 4.2.0-rc1+ #4 [ 148.765803] ffffffff81cdc398 ffff88085f105950 ffffffff818bdfd5 0000000000000007 [ 148.765805] 0000000000000000 ffff88085f105990 ffffffff810e413a 0000000000000000 [ 148.765807] ffffffff82301080 0000000000000022 ffffffff8107f640 ffffffff8107f640 [ 148.765809] Call Trace: [ 148.765810] <NMI> [<ffffffff818bdfd5>] dump_stack+0x45/0x57 [ 148.765818] [<ffffffff810e413a>] warn_slowpath_common+0x8a/0xc0 [ 148.765822] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765824] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765825] [<ffffffff810e422a>] warn_slowpath_null+0x1a/0x20 [ 148.765827] [<ffffffff811613f6>] smp_call_function_many+0xb6/0x260 [ 148.765829] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765831] [<ffffffff81161748>] on_each_cpu_mask+0x28/0x60 [ 148.765832] [<ffffffff8107f6ef>] intel_cqm_event_count+0x7f/0xe0 [ 148.765836] [<ffffffff811cdd35>] perf_output_read+0x2a5/0x400 [ 148.765839] [<ffffffff811d2e5a>] perf_output_sample+0x31a/0x590 [ 148.765840] [<ffffffff811d333d>] ? perf_prepare_sample+0x26d/0x380 [ 148.765841] [<ffffffff811d3497>] perf_event_output+0x47/0x60 [ 148.765843] [<ffffffff811d36c5>] __perf_event_overflow+0x215/0x240 [ 148.765844] [<ffffffff811d4124>] perf_event_overflow+0x14/0x20 [ 148.765847] [<ffffffff8107e7f4>] intel_pmu_handle_irq+0x1d4/0x440 [ 148.765849] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765853] [<ffffffff81219bad>] ? vunmap_page_range+0x19d/0x2f0 [ 148.765854] [<ffffffff81219d11>] ? unmap_kernel_range_noflush+0x11/0x20 [ 148.765859] [<ffffffff814ce6fe>] ? ghes_copy_tofrom_phys+0x11e/0x2a0 [ 148.765863] [<ffffffff8109e5db>] ? native_apic_msr_write+0x2b/0x30 [ 148.765865] [<ffffffff8109e44d>] ? x2apic_send_IPI_self+0x1d/0x20 [ 148.765869] [<ffffffff81065135>] ? arch_irq_work_raise+0x35/0x40 [ 148.765872] [<ffffffff811c8d86>] ? irq_work_queue+0x66/0x80 [ 148.765875] [<ffffffff81075306>] perf_event_nmi_handler+0x26/0x40 [ 148.765877] [<ffffffff81063ed9>] nmi_handle+0x79/0x100 [ 148.765879] [<ffffffff81064422>] default_do_nmi+0x42/0x100 [ 148.765880] [<ffffffff81064563>] do_nmi+0x83/0xb0 [ 148.765884] [<ffffffff818c7c0f>] end_repeat_nmi+0x1e/0x2e [ 148.765886] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765888] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765890] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765891] <<EOE>> [<ffffffff8110ab66>] finish_task_switch+0x156/0x210 [ 148.765898] [<ffffffff818c1671>] __schedule+0x341/0x920 [ 148.765899] [<ffffffff818c1c87>] schedule+0x37/0x80 [ 148.765903] [<ffffffff810ae1af>] ? do_page_fault+0x2f/0x80 [ 148.765905] [<ffffffff818c1f4a>] schedule_user+0x1a/0x50 [ 148.765907] [<ffffffff818c666c>] retint_careful+0x14/0x32 [ 148.765908] ---[ end trace e33ff2be78e14901 ]--- The CQM task events are not safe to be called from within interrupt context because they require performing an IPI to read the counter value on all sockets. And performing IPIs from within IRQ context is a "no-no". Make do with the last read counter value currently event in event->count when we're invoked in this context. Reported-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vikas Shivappa <vikas.shivappa@intel.com> Cc: Kanaka Juvva <kanaka.d.juvva@intel.com> Cc: Will Auld <will.auld@intel.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/1437490509-15373-1-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-26Merge tag 'usb-4.2-rc4' of ↵Linus Torvalds20-161/+170
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here's a few USB and PHY fixes for 4.2-rc4. Nothing major, the shortlog has the full details. All of these have been in linux-next successfully" * tag 'usb-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits) USB: OHCI: fix bad #define in ohci-tmio.c cdc-acm: Destroy acm_minors IDR on module exit usb-storage: Add ignore-device quirk for gm12u320 based usb mini projectors usb-storage: ignore ZTE MF 823 card reader in mode 0x1225 USB: OHCI: Fix race between ED unlink and URB submission usb: core: lpm: set lpm_capable for root hub device xhci: do not report PLC when link is in internal resume state xhci: prevent bus_suspend if SS port resuming in phase 1 xhci: report U3 when link is in resume state xhci: Calculate old endpoints correctly on device reset usb: xhci: Bugfix for NULL pointer deference in xhci_endpoint_init() function xhci: Workaround to get D3 working in Intel xHCI xhci: call BIOS workaround to enable runtime suspend on Intel Braswell usb: dwc3: Reset the transfer resource index on SET_INTERFACE usb: gadget: udc: core: Fix argument of dma_map_single for IOMMU usb: gadget: mv_udc_core: fix phy_regs I/O memory leak usb: ulpi: ulpi_init should be executed in subsys_initcall phy: berlin-usb: fix divider for BG2 phy: berlin-usb: fix divider for BG2CD phy/pxa: add HAS_IOMEM dependency ...
2015-07-26Merge tag 'tty-4.2-rc4' of ↵Linus Torvalds10-23/+57
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver fixes from Greg KH: "Here are a number of small serial and tty fixes for reported issues. All have been in linux-next successfully" * tag 'tty-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection() serial: core: Fix crashes while echoing when closing m32r: Add ioreadXX/iowriteXX big-endian mmio accessors Revert "serial: imx: initialized DMA w/o HW flow enabled" sc16is7xx: fix FIFO address of secondary UART sc16is7xx: fix Kconfig dependencies serial: etraxfs-uart: Fix release etraxfs_uart_ports tty/vt: Fix the memory leak in visual_init serial: amba-pl011: Fix devm_ioremap_resource return value check n_tty: signal and flush atomically
2015-07-26Merge tag 'staging-4.2-rc4' of ↵Linus Torvalds8-26/+31
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are a number of iio and staging driver fixes for reported issues for 4.2-rc4. All have been in linux-next for a while with no problems" * tag 'staging-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (34 commits) iio:light:stk3310: make endianness independent of host iio:light:stk3310: move device register to end of probe iio: mma8452: use iio event type IIO_EV_TYPE_MAG iio: mcp320x: Fix NULL pointer dereference iio: adc: vf610: fix the adc register read fail issue iio: mlx96014: Replace offset sign iio: magnetometer: mmc35240: fix SET/RESET sequence iio: magnetometer: mmc35240: Fix SET/RESET mask iio: magnetometer: mmc35240: Fix crash in pm suspend iio:magnetometer:bmc150_magn: output intended variable iio:magnetometer:bmc150_magn: add regmap dependency staging: vt6656: check ieee80211_bss_conf bssid not NULL staging: vt6655: check ieee80211_bss_conf bssid not NULL iio: tmp006: Check channel info on write iio: sx9500: Add missing init in sx9500_buffer_pre{en,dis}able() iio:light:ltr501: fix regmap dependency iio:light:ltr501: fix variable in ltr501_init iio: sx9500: fix bug in compensation code iio: sx9500: rework error handling of raw readings iio: magnetometer: mmc35240: fix available sampling frequencies ...
2015-07-26Merge tag 'char-misc-4.2-rc4' of ↵Linus Torvalds3-16/+12
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some char and misc driver fixes for reported issues. One parport patch is reverted as it was incorrect, thanks to testing by the 0-day bot" * tag 'char-misc-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: parport: Revert "parport: fix memory leak" mei: prevent unloading mei hw modules while the device is opened. misc: mic: scif bug fix for vmalloc_to_page crash parport: fix freeing freed memory parport: fix memory leak parport: fix error handling
2015-07-25parport: Revert "parport: fix memory leak"Sudip Mukherjee1-1/+0
This reverts commit 23c405912b88 ("parport: fix memory leak") par_dev->state was already being removed in parport_unregister_device(). Reported-by: Ying Huang <ying.huang@intel.com> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-25Merge tag 'trace-v4.2-rc2-fix3' of ↵Linus Torvalds2-18/+37
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull ftrace fix from Steven Rostedt: "Back in 3.16 the ftrace code was redesigned and cleaned up to remove the double iteration list (one for registered ftrace ops, and one for registered "global" ops), to just use one list. That simplified the code but also broke the function tracing filtering on pid. This updates the code to handle the filtering again with the new logic" * tag 'trace-v4.2-rc2-fix3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Fix breakage of set_ftrace_pid
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-20 17:41:49 +0300