The newly merged versatile sched clock support uses a deprecated
interface. Of course that patch got routed through the ARM tree instead
of going through the relevant maintainer tree.
Use the proper interface so we can get rid of the cruft.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix perf probe to find correct variable DIE which has location or
external instance by tracking down the lexical blocks.
Current die_find_variable() expects that the all variable DIEs
which has DW_TAG_variable have a location. However, since recent
dwarf information may have declaration variable DIEs at the
entry of function (subprogram), die_find_variable() returns it.
To solve this problem, it must track down the DIE tree to find
a DIE which has an actual location or a reference for external
instance.
e.g. finding a DIE which origin is <0xdc73>;
<1><11496>: Abbrev Number: 95 (DW_TAG_subprogram)
<11497> DW_AT_abstract_origin: <0xdc42>
<1149b> DW_AT_low_pc : 0x1850
[...]
<2><114cc>: Abbrev Number: 119 (DW_TAG_variable) <- this is a declaration
<114cd> DW_AT_abstract_origin: <0xdc73>
<2><114d1>: Abbrev Number: 119 (DW_TAG_variable)
[...]
<3><115a7>: Abbrev Number: 105 (DW_TAG_lexical_block)
<115a8> DW_AT_ranges : 0xaa0
<4><115ac>: Abbrev Number: 96 (DW_TAG_variable) <- this has a location
<115ad> DW_AT_abstract_origin: <0xdc73>
<115b1> DW_AT_location : 0x486c (location list)
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Tested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Acked-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20140529121930.30879.87092.stgit@ltc230.yrl.intra.hitachi.co.jp
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Fix a segfault bug by asking for variable it doesn't find.
Since the convert_variable() didn't handle error code returned
from convert_variable_location(), it just passed an incomplete
variable field and then a segfault was occurred when formatting
the field.
This fixes that bug by handling success code correctly in
convert_variable(). Other callers of convert_variable_location()
are correctly checking the return code.
This bug was introduced by following commit. But another hidden
erroneous error handling has been there previously (-ENOMEM case).
commit 3d918a12a1
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20140529105232.28251.30447.stgit@ltc230.yrl.intra.hitachi.co.jp
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
check_irq_vectors_for_cpu_disable() can overestimate the number of
available interrupt vectors, so the check for cpu down succeeds, but
the actual cpu removal fails.
It iterates from FIRST_EXTERNAL_VECTOR to NR_VECTORS, which is wrong
because the systems vectors are not taken into account.
Limit the search to first_system_vector instead of NR_VECTORS.
The second indicator for vector availability the used_vectors bitmap
is not taken into account at all. So system vectors,
e.g. IA32_SYSCALL_VECTOR (0x80) and IRQ_MOVE_CLEANUP_VECTOR (0x20),
are accounted as available.
Add a check for the used_vectors bitmap and do not account vectors
which are marked there.
[ tglx: Simplified code. Rewrote changelog and code comments. ]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Prarit Bhargava <prarit@redhat.com>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Steven Rostedt (Red Hat) <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Elliott, Robert (Server Storage)" <Elliott@hp.com>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/1400160305-17774-2-git-send-email-prarit@redhat.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add an early check for the node argument in __of_get_next_child and
of_get_next_available_child() to avoid dereferencing a NULL node pointer
a few lines after.
CC: Daniel Mack <zonque@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
The pci-rcar driver is enabled for compile tests, and this has
now shown that the driver cannot build without CONFIG_OF,
following the inclusion of f8f2fe7355 "PCI: rcar: Use new OF
interrupt mapping when possible":
drivers/built-in.o: In function `rcar_pci_map_irq':
:(.text+0x1cc7c): undefined reference to `of_irq_parse_and_map_pci'
pci/host/pcie-rcar.c: In function 'pci_dma_range_parser_init':
pci/host/pcie-rcar.c:875:2: error: implicit declaration of function 'of_n_addr_cells' [-Werror=implicit-function-declaration]
As pointed out by Ben Dooks and Geert Uytterhoeven, this is actually
supposed to build fine, which we can achieve if we make the
declaration of of_irq_parse_and_map_pci conditional on CONFIG_OF
and provide an empty inline function otherwise, as we do for
a lot of other of interfaces.
This lets us build the rcar_pci driver again without CONFIG_OF
for build testing. All platforms using this driver select OF,
so this doesn't change anything for the users.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: devicetree@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Magnus Damm <damm@opensource.se>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ben Dooks <ben.dooks@codethink.co.uk>
Cc: linux-pci@vger.kernel.org
Cc: linux-sh@vger.kernel.org
[robh: drop wrappers for of_n_addr_cells and of_n_size_cells which are
low-level functions that should not be used for !OF]
Signed-off-by: Rob Herring <robh@kernel.org>
There's been a check for CONFIG_XILINX_CONSOLE since v2.6.30. But the
Kconfig symbol XILINX_CONSOLE was never added. Remove this check.
And, since DUMMY_CONSOLE depends on VT, we can now drop the check for
CONFIG_VT.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
PCI_DRAM_OFFSET/pci_dram_offset is 0 all the time and there
is no difference for PCI and !PCI cases.
Also remove the whole code which setup archdata.dma_data
which is completely unused.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Return Microblaze default dma operations
and remove bus notifier which setups the same dma operations
by default when device is added to the system.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
SERIAL_OF_PLATFORM is required for getting 8250 to work.
Reported-by: Subbaraya Sundeep Bhatta <sbhatta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The first one is a one liner fixing a stupid typo in the VM handling code and is only relevant if play with one of the VM defines.
The other two switches CIK to use the CPDMA instead of the SDMA for buffer moves, as it turned out the SDMA is still sometimes not 100% reliable.
* 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux:
drm/radeon: use the CP DMA on CIK
drm/radeon: sync page table updates
drm/radeon: fix vm buffer size estimation
blk_mq_map_request() can return NULL if we fail entering the queue
(dying, or removed), in which case it has already ended IO on the
bio. So nothing more to do, except just return.
Signed-off-by: Jens Axboe <axboe@fb.com>
'struct blk_mq_ctx' is __percpu, so add the annotation
and fix the sparse warning reported from Fengguang:
[block:for-linus 2/3] block/blk-mq.h:75:16: sparse: incorrect
type in initializer (different address spaces)
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
blk_mq_put_ctx() has to be called before io_schedule() in
bt_get().
This patch fixes the problem by taking similar approach from
percpu_ida allocation for the situation.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This patch fixes a iser-target specific regression introduced in
v3.15-rc6 with:
commit 14f4b54fe3
Author: Sagi Grimberg <sagig@mellanox.com>
Date: Tue Apr 29 13:13:47 2014 +0300
Target/iscsi,iser: Avoid accepting transport connections during stop stage
where the change to set iscsi_np->enabled = false within
iscsit_clear_tpg_np_login_thread() meant that a iscsi_np with
two iscsi_tpg_np exports would have it's parent iscsi_np set
to a disabled state, even if other iscsi_tpg_np exports still
existed.
This patch changes iscsit_clear_tpg_np_login_thread() to only
set iscsi_np->enabled = false when shutdown = true, and also
changes iscsit_del_np() to set iscsi_np->enabled = true when
iscsi_np->np_exports is non zero.
Cc: Sagi Grimberg <sagig@dev.mellanox.co.il>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
In non-leading connection login, iscsi_login_non_zero_tsih_s1() calls
iscsi_change_param_value() with the buffer it uses to hold the login
PDU, not a temporary buffer. This leads to the login header getting
corrupted and login failing for non-leading connections in MC/S.
Fix this by adding a wrapper iscsi_change_param_sprintf() that handles
the temporary buffer itself to avoid confusion. Also handle sending a
reject in case of failure in the wrapper, which lets the calling code
get quite a bit smaller and easier to read.
Finally, bump the size of the temporary buffer from 32 to 64 bytes to be
safe, since "MaxRecvDataSegmentLength=" by itself is 25 bytes; with a
trailing NUL, a value >= 1M will lead to a buffer overrun. (This isn't
the default but we don't need to run right at the ragged edge here)
Reported-by: Santosh Kulkarni <santosh.kulkarni@calsoftinc.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This patch addresses a bug where an early exception for SCSI WRITE
with ImmediateData=Yes was missing the target_put_sess_cmd() call
to drop the extra se_cmd->cmd_kref reference obtained during the
normal iscsit_setup_scsi_cmd() codepath execution.
This bug was manifesting itself during session shutdown within
isert_cq_rx_comp_err() where target_wait_for_sess_cmds() would
end up waiting indefinately for the last se_cmd->cmd_kref put to
occur for the failed SCSI WRITE + ImmediateData descriptors.
This fix follows what traditional iscsi-target code already does
for the same failure case within iscsit_get_immediate_data().
Reported-by: Sagi Grimberg <sagig@dev.mellanox.co.il>
Cc: Sagi Grimberg <sagig@dev.mellanox.co.il>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
The Allwinner sunxi mmc host uses dma in bus-master mode using a built-in
designware idmac controller, which is identical to the one found in the mmc-dw
hosts. However the rest of the host is not identical to mmc-dw, it deals with
sending stop commands in hardware which makes it significantly different
from the mmc-dw devices.
Signed-off-by: David Lanzendörfer <david.lanzendoerfer@o2s.ch>
[hdegoede@redhat.com: various cleanups and fixes]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Chris Ball <chris@printf.net>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Pull x86/UV changes from Ingo Molnar:
"Continued updates for SGI UV 3 hardware support"
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/UV: Fix conditional in gru_exit()
x86/UV: Set n_lshift based on GAM_GR_CONFIG MMR for UV3
Pull x86 RAS changes from Ingo Molnar:
"Improve mcheck device initialization and bootstrap robustness"
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
mce: Panic when a core has reached a timeout
x86/mce: Improve mcheck_init_device() error handling
Pull x86 IOSF platform updates from Ingo Molnar:
"IOSF (Intel OnChip System Fabric) updates:
- generalize the IOSF interface to allow mixed mode drivers: non-IOSF
drivers to utilize of IOSF features on IOSF platforms.
- add 'Quark X1000' IOSF/MBI support
- clean up BayTrail and Quark PCI ID enumeration"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, iosf: Add PCI ID macros for better readability
x86, iosf: Add Quark X1000 PCI ID
x86, iosf: Added Quark MBI identifiers
x86, iosf: Make IOSF driver modular and usable by more drivers
Pull x86 mm update from Ingo Molnar:
- speed up 256 GB PCI BAR ioremap()s
- speed up PTE swapout page reclaim case
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, ioremap: Speed up check for RAM pages
x86/mm: In the PTE swapout page reclaim case clear the accessed bit instead of flushing the TLB
Pull x86 microcode changes from Ingo Molnar:
"A microcode-debugging boot flag plus related refactoring"
* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, microcode: Add a disable chicken bit
x86, boot: Carve out early cmdline parsing function
Pull x86 irq cleanup from Ingo Molnar:
"A single, trivial cleanup"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/irq: Clean up VECTOR_UNDEFINED and VECTOR_RETRIGGERED definition
Pull x86 build cleanups from Ingo Molnar:
"Two small build related cleanups"
* 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/build: Supress realmode.bin is up to date message
compiler-intel.h: Remove duplicate definition
Pull x86 boot changes from Ingo Molnar:
"Two small cleanups"
* 'x86-boot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, boot: Remove misc.h inclusion from compressed/string.c
x86, boot: Do not include boot.h in string.c
* acpi-tools:
ACPI / tools: Introduce ec_access.c - tool to access the EC
* pm-tools:
cpupower: Remove mc and smt power aware scheduler info/settings
cpupower: cpupower info -b should return 0 on success, not the perf bias value
cpupower: If root, try to load msr driver on x86 if /dev/cpu/0/msr is not available
cpupower: Install recently added cpupower-idle-{set, info} manpages
cpupower: Introduce idle state disable-by-latency and enable-all
cpupower: Remove all manpages on make uninstall
cpupower: Remove dead link to homepage, and update the targets built.
cpupower: Rename cpufrequtils -> cpupower, and libcpufreq -> libcpupower.
PM / tools: cpupower: add option to display values without round offs
tools / power: turbostat: Drop temperature checks
* pm-cpufreq: (28 commits)
cpufreq: handle calls to ->target_index() in separate routine
cpufreq: s5pv210: drop check for CONFIG_PM_VERBOSE
cpufreq: intel_pstate: Remove unused member name of cpudata
cpufreq: Break out early when frequency equals target_freq
cpufreq: Tegra: drop wrapper around tegra_update_cpu_speed()
cpufreq: imx6q: Remove unused include
cpufreq: imx6q: Drop devm_clk/regulator_get usage
cpufreq: powernow-k8: Suppress checkpatch warnings
cpufreq: powernv: make local function static
cpufreq: Enable big.LITTLE cpufreq driver on arm64
cpufreq: nforce2: remove DEFINE_PCI_DEVICE_TABLE macro
intel_pstate: Add CPU IDs for Broadwell processors
cpufreq: Fix build error on some platforms that use cpufreq_for_each_*
PM / OPP: Move cpufreq specific OPP functions out of generic OPP library
PM / OPP: Remove cpufreq wrapper dependency on internal data organization
cpufreq: Catch double invocations of cpufreq_freq_transition_begin/end
intel_pstate: Remove sample parameter in intel_pstate_calc_busy
cpufreq: Kconfig: Fix spelling errors
cpufreq: Make linux-pm@vger.kernel.org official mailing list
cpufreq: exynos: Use dev_err/info function instead of pr_err/info
...
* pnp:
MAINTAINERS: Remove Bjorn Helgaas as PNP maintainer
PNP / resources: remove positive test on unsigned values
* powercap:
powercap / RAPL: add new CPU IDs
powercap / RAPL: further relax energy counter checks
* pm-runtime:
PM / runtime: Update documentation to reflect the current code flow
* pm-opp:
PM / OPP: discard duplicate OPPs
PM / OPP: Make OPP invisible to users in Kconfig
PM / OPP: fix incorrect OPP count handling in of_init_opp_table
* acpi-video:
ACPI / video: Add 4 new models to the use_native_backlight DMI list
ACPI / video: Add use native backlight quirk for the ThinkPad W530
ACPI / video: Unregister the backlight device if a raw one shows up later
backlight: Add backlight device (un)registration notification
nouveau: Don't check acpi_video_backlight_support() before registering backlight
acer-wmi: Add Aspire 5741 to video_vendor_dmi_table
acer-wmi: Switch to acpi_video_unregister_backlight
ACPI / video: Add an acpi_video_unregister_backlight function
ACPI / video: Don't register acpi_video_resume notifier without backlight devices
ACPI / video: change acpi-video brightness_switch_enabled default to 0
* acpica: (63 commits)
ACPICA: Namespace: Remove _PRP method support.
ACPI: Fix x86 regression related to early mapping size limitation
ACPICA: Tables: Add mechanism to control early table checksum verification.
ACPICA: acpidump: Fix repetitive table dump in -n mode.
ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem.
ACPICA: Clean up redudant definitions already defined elsewhere
ACPICA: Linux headers: Add <asm/acenv.h> to remove mis-ordered inclusion of <asm/acpi.h>
ACPICA: Linux headers: Add <acpi/platform/aclinuxex.h>
ACPICA: Linux headers: Remove ACPI_PREEMPTION_POINT() due to no usages.
ACPICA: Update version to 20140424.
ACPICA: Comment/format update, no functional change.
ACPICA: Events: Update GPE handling and initialization code.
ACPICA: Remove extraneous error message for large number of GPEs.
ACPICA: Tables: Remove old mechanism to validate if XSDT contains NULL entries.
ACPICA: Tables: Add new mechanism to skip NULL entries in RSDT and XSDT.
ACPICA: acpidump: Add support to force using RSDT.
ACPICA: Back port of improvements on exception code.
ACPICA: Back port of _PRP update.
ACPICA: acpidump: Fix truncated RSDP signature validation.
ACPICA: Linux header: Add support for stubbed externals.
...
* acpi-enumeration:
ACPI / scan: use platform bus type by default for _HID enumeration
ACPI / scan: always register ACPI LPSS scan handler
ACPI / scan: always register memory hotplug scan handler
ACPI / scan: always register container scan handler
ACPI / scan: Change the meaning of missing .attach() in scan handlers
ACPI / scan: introduce platform_id device PNP type flag
ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list
ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule
ACPI / PNP: use device ID list for PNPACPI device enumeration
ACPI / scan: .match() callback for ACPI scan handlers
* acpi-pm:
ACPI / PM: Export rest of the subsys PM callbacks
ACPI / PM: Avoid resuming devices in ACPI PM domain during system suspend
ACPI / PM: Hold ACPI scan lock over the "freeze" sleep state
ACPI / PM: Export acpi_target_system_state() to modules
* acpi-battery:
ACPI / battery: wakeup the system only when necessary
power_supply: allow power supply devices registered w/o wakeup source
ACPI / battery: introduce support for POWER_SUPPLY_PROP_CAPACITY_LEVEL
ACPI / battery: Accelerate battery resume callback
* pm-sleep:
PM / hibernate: fixed typo in comment
PM / sleep: unregister wakeup source when disabling device wakeup
PM / sleep: Introduce command line argument for sleep state enumeration
PM / sleep: Use valid_state() for platform-dependent sleep states only
PM / sleep: Add state field to pm_states[] entries
PM / sleep: Update device PM documentation to cover direct_complete
PM / sleep: Mechanism to avoid resuming runtime-suspended devices unnecessarily
PM / hibernate: Fix memory corruption in resumedelay_setup()
PM / hibernate: convert simple_strtoul to kstrtoul
PM / hibernate: Documentation: Fix script for unswapping
PM / hibernate: no kernel_power_off when pm_power_off NULL
PM / hibernate: use unsigned local variables in swsusp_show_speed()
* pm-cpuidle:
PM / suspend: Always use deepest C-state in the "freeze" sleep state
cpuidle / menu: move repeated correction factor check to init
cpuidle / menu: Return (-1) if there are no suitable states
cpuidle: Combine cpuidle_enabled() with cpuidle_select()
ARM: clps711x: Add cpuidle driver
