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Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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- Move the verbosity knob from .data to .bss by using inverted logic
- No need to readout PD1 descriptor
- clip the non pfn bits of PD0 to avoid clipping inside the loop
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Mapping a large range of foreign GFNs can take a long time, add a
reschedule point after each batch of 16 GFNs.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Recent GDB (at least on a vanilla Debian box) looks for debug information in
/usr/lib/debug/.build-id/nn/nnnnnnn
where nn/nnnnnn is the build-id of the stripped ELF binary. This is
documented here:
https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html
This was not working in perf because we didn't read the build id until
AFTER we searched for the separate debug information file. This patch
reads the build ID and THEN does the search.
Signed-off-by: Dima Kogan <dima@secretsauce.net>
Link: http://lkml.kernel.org/r/87si6pfwz4.fsf@secretsauce.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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This was benign, but wrong. The build-id should live in a char[], not a char*[]
Signed-off-by: Dima Kogan <dima@secretsauce.net>
Link: http://lkml.kernel.org/r/87si6pfwz4.fsf@secretsauce.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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bdi_split_work_to_wbs()
bdi_split_work_to_wbs() uses list_for_each_entry_rcu_continue()
to walk @bdi->wb_list. To set up the initial iteration
condition, it uses list_entry_rcu() to calculate the entry
pointer corresponding to the list head; however, this isn't an
actual RCU dereference and using list_entry_rcu() for it ended
up breaking a proposed list_entry_rcu() change because it was
feeding an non-lvalue pointer into the macro.
Don't use the RCU variant for simple pointer offsetting. Use
list_entry() instead.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Darren Hart <dvhart@linux.intel.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Patrick Marlier <patrick.marlier@gmail.com>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: pranith kumar <bobby.prani@gmail.com>
Link: http://lkml.kernel.org/r/20151027051939.GA19355@mtj.duckdns.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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These have been missing in the template file although they provide
good kernel doc comments. Let's add them.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Give some readable comment in kernel doc style for each exported
function, as I promised in the previous meetings. While we're at it,
fix the wrong comments, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Commit:
0f96a99dab36 ("efi: Add "efi_fake_mem" boot option")
introduced the following warning message:
drivers/firmware/efi/fake_mem.c:186:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
new_memmap_phy was defined as a u64 value and cast to void*,
causing a int-to-pointer-cast warning on x86 32-bit builds.
However, since the void* type is inappropriate for a physical
address, the definition of struct efi_memory_map::phys_map has
been changed to phys_addr_t in the previous patch, and so the
cast can be dropped entirely.
This patch also changes the type of the "new_memmap_phy"
variable from "u64" to "phys_addr_t" to align with the types of
memblock_alloc() and struct efi_memory_map::phys_map.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
[ Removed void* cast, updated commit log]
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kamezawa.hiroyu@jp.fujitsu.com
Cc: linux-efi@vger.kernel.org
Cc: matt.fleming@intel.com
Link: http://lkml.kernel.org/r/1445593697-1342-2-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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We have been getting away with using a void* for the physical
address of the UEFI memory map, since, even on 32-bit platforms
with 64-bit physical addresses, no truncation takes place if the
memory map has been allocated by the firmware (which only uses
1:1 virtually addressable memory), which is usually the case.
However, commit:
0f96a99dab36 ("efi: Add "efi_fake_mem" boot option")
adds code that clones and modifies the UEFI memory map, and the
clone may live above 4 GB on 32-bit platforms.
This means our use of void* for struct efi_memory_map::phys_map has
graduated from 'incorrect but working' to 'incorrect and
broken', and we need to fix it.
So redefine struct efi_memory_map::phys_map as phys_addr_t, and
get rid of a bunch of casts that are now unneeded.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: izumi.taku@jp.fujitsu.com
Cc: kamezawa.hiroyu@jp.fujitsu.com
Cc: linux-efi@vger.kernel.org
Cc: matt.fleming@intel.com
Link: http://lkml.kernel.org/r/1445593697-1342-1-git-send-email-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Cc: <stable@vger.kernel.org> #3.9+
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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With prev fixes, all cores now start via common entry point @stext which
already calls EARLY_CPU_SETUP for all cores - so no need to invoke it
again
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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MCIP now registers it's own per cpu setup routine (for IPI IRQ request)
using smp_ops.init_irq_cpu().
So no need for platforms to do that. This now completely decouples
platforms from MCIP.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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Note this is not part of platform owned static machine_desc,
but more of device owned plat_smp_ops (rather misnamed) which a IPI
provider or some such typically defines.
This will help us seperate out the IPI registration from platform
specific init_cpu_smp() into device specific init_irq_cpu()
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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This conveys better that it is called for each cpu
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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MCIP now registers it's own probe callback with smp_ops.init_early_smp()
which is called by ARC common code, so no need for platforms to do that.
This decouples the platforms and MCIP and helps confine MCIP details
to it's own file.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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This adds a platform agnostic early SMP init hook which is called on
Master core before calling setup_processor()
setup_arch()
smp_init_cpus()
smp_ops.init_early_smp()
...
setup_processor()
How this helps:
- Used for one time init of certain SMP centric IP blocks, before
calling setup_processor() which probes various bits of core,
possibly including this block
- Currently platforms need to call this IP block init from their
init routines, which doesn't make sense as this is specific to ARC
core and not platform and otherwise requires copy/paste in all
(and hence a possible point of failure)
e.g. MCIP init is called from 2 platforms currently (axs10x and sim)
which will go away once we have this.
This change only adds the hooks but they are empty for now. Next commit
will populate them and remove the explicit init calls from platforms.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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These are not in use for ARC platforms. Moreover DT mechanims exist to
probe them w/o explicit platform calls.
- clocksource drivers can use CLOCKSOURCE_OF_DECLARE()
- intc IRQCHIP_DECLARE() calls + cascading inside DT allows external
intc to be probed automatically
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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The reason this was not done so far was lack of genuine IPI_IRQ for
ARC700, as we don't have a SMP version of core yet (which might change
soon thx to EZChip). Nevertheles to increase the build coverage, we
need to allow CONFIG_SMP for ARC700 and still be able to run it on a
UP platform (nsim or AXS101) with a UP Device Tree (SMP-on-UP)
The build itself requires some define for IPI_IRQ and even a dummy
value is fine since that code won't run anyways.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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The ALSA core does not modify the constraints provided by a driver. Most
constraint helper functions already take a const pointer to the constraint
description, the exception at the moment being the ratden and ratnum
constraints. Make those const as well, this allows a driver to declare them
as const.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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For Run-on-reset, non masters need to spin wait. For Halt-on-reset they
can jump to entry point directly.
Also while at it, made reset vector handler as "the" entry point for
kernel including host debugger based boot (which uses the ELF header
entry point)
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
- powerpc/dma: dma_set_coherent_mask() should not be GPL only from Ben
* tag 'powerpc-4.3-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/dma: dma_set_coherent_mask() should not be GPL only
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The sysfs policy directory is postfixed currently with the CPU number
for which the policy was created, which isn't necessarily the first CPU
in related_cpus mask.
To make it more consistent and predictable, lets postfix the policy with
the first cpu in related-cpus mask.
Suggested-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The cpufreq sysfs interface had been a bit inconsistent as one of the
CPUs for a policy had a real directory within its sysfs 'cpuX' directory
and all other CPUs had links to it. That also made the code a bit
complex as we need to take care of moving the sysfs directory if the CPU
containing the real directory is getting physically hot-unplugged.
Solve this by creating 'policyX' directories (per-policy) in
/sys/devices/system/cpu/cpufreq/ directory, where X is the CPU for which
the policy was first created.
This also removes the need of keeping kobj_cpu and we can remove it now.
Suggested-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Acked-by: is more of a general agreement from the person that he is
Reviewed-by: is a more strict tag and implies that the reviewer has
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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They don't do anything special now, remove the unnecessary wrapper.
Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Later patches will need to create policy specific directories in
/sys/devices/system/cpu/cpufreq/ directory and so the cpufreq directory
wouldn't be ever empty.
And so no fun creating/destroying it on need basis anymore. Create it
once on system boot.
Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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->related_cpus is empty at this point of time and copying ->cpus to it
or orring ->related_cpus with ->cpus would result in the same value. But
cpumask_copy makes it rather clear.
Reviewed-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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'timer_mutex' is required to sync work-handlers of policy->cpus.
update_sampling_rate() is just canceling the works and queuing them
again. This isn't protecting anything at all in update_sampling_rate()
and is not gonna be of any use.
Even if a work-handler is already running for a CPU,
cancel_delayed_work_sync() will wait for it to finish.
Drop these unnecessary locks.
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Per http://www.nvmexpress.org/resources/linux-driver-information/, the
old nvme git repo is stale. Updating MAINTAINERS to the Supported
target currently used by the community.
Signed-off-by: Jay Freyensee <james_p_freyensee@linux.intel.com>
Updated by me to add Keith as the maintainer, me as the co-maintainer.
Signed-off-by: Jens Axboe <axboe@fb.com>
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This is the downside of using bitfields in the struct definition, rather
than doing all the explicit masking and shifting.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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This fixes a build error that seems to be toochain
dependent (Not seen with gcc v5.1):
In file included from net/nfc/nci/rsp.c:36:0:
net/nfc/nci/rsp.c: In function ‘nci_rsp_packet’:
include/net/nfc/nci_core.h:355:12: error: inlining failed in call to
always_inline ‘nci_prop_rsp_packet’: function body not available
inline int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode,
Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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When turning this from inline to an exported function I was a bit
over-eager and made it GPL only. This prevents the use of pretty much
all non-GPL PCI driver which is a bit over the top. Let's bring it
back in line with other architecture.
Fixes: 817820b0226a ("powerpc/iommu: Support "hybrid" iommu/direct DMA ops for coherent_mask < dma_mask")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Measure latency does by itself contribute to an increased latency, thus we
should avoid it when it isn't needed.
By merging the latency measurements for the ->save_state() and the
->stop() callbacks, we get one measurement instead of two and we get one
value to store instead of two. Let's also apply the likewise change for
the ->start() and ->restore_state() callbacks.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Lina Iyer <lina.iyer@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Measure latency does by itself contribute to an increased latency, thus we
should avoid it when it isn't needed.
Genpd measures latencies in the system PM phase for the ->start|stop()
callbacks and is thus affecting the system PM suspend/resume time.
Moreover these latencies are validated only at runtime PM suspend/resume.
To this reasoning, let's decide to leave these measurements out of the
system PM phase. There should be plenty of occasions during runtime PM to
perform these measurements anyway.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Lina Iyer <lina.iyer@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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If an architecture's main Kconfig file doesn't include
kernel/power/Kconfig, but CONFIG_PM=y and HAVE_CLK=y (e.g. m68knommu
allmodconfig):
drivers/base/power/clock_ops.c: In function ‘__pm_clk_add’:
drivers/base/power/clock_ops.c:106: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c: At top level:
drivers/base/power/clock_ops.c:120: error: redefinition of ‘pm_clk_add’
include/linux/pm_clock.h:64: error: previous definition of ‘pm_clk_add’ was here
drivers/base/power/clock_ops.c:135: error: redefinition of ‘pm_clk_add_clk’
include/linux/pm_clock.h:69: error: previous definition of ‘pm_clk_add_clk’ was here
drivers/base/power/clock_ops.c:171: error: redefinition of ‘pm_clk_remove’
include/linux/pm_clock.h:73: error: previous definition of ‘pm_clk_remove’ was here
drivers/base/power/clock_ops.c: In function ‘pm_clk_remove’:
drivers/base/power/clock_ops.c:180: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c:180: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c: At top level:
drivers/base/power/clock_ops.c:207: error: redefinition of ‘pm_clk_init’
include/linux/pm_clock.h:54: error: previous definition of ‘pm_clk_init’ was here
drivers/base/power/clock_ops.c: In function ‘pm_clk_init’:
drivers/base/power/clock_ops.c:210: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c: At top level:
drivers/base/power/clock_ops.c:221: error: redefinition of ‘pm_clk_create’
include/linux/pm_clock.h:57: error: previous definition of ‘pm_clk_create’ was here
drivers/base/power/clock_ops.c:234: error: redefinition of ‘pm_clk_destroy’
include/linux/pm_clock.h:61: error: previous definition of ‘pm_clk_destroy’ was here
drivers/base/power/clock_ops.c: In function ‘pm_clk_destroy’:
drivers/base/power/clock_ops.c:246: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c:246: error: ‘struct pm_subsys_data’ has no member named ‘clock_list’
drivers/base/power/clock_ops.c: At top level:
drivers/base/power/clock_ops.c:263: error: expected identifier or ‘(’ before ‘void’
drivers/base/power/clock_ops.c:263: error: expected ‘)’ before numeric constant
drivers/base/power/clock_ops.c:293: error: expected identifier or ‘(’ before ‘void’
drivers/base/power/clock_ops.c:293: error: expected ‘)’ before numeric constant
drivers/base/power/clock_ops.c: In function ‘pm_clk_runtime_suspend’:
drivers/base/power/clock_ops.c:384: error: called object ‘0u’ is not a function
drivers/base/power/clock_ops.c: In function ‘pm_clk_runtime_resume’:
drivers/base/power/clock_ops.c:400: error: called object ‘0u’ is not a function
This happens because:
- drivers/base/power/clock_ops.c depends on CONFIG_HAVE_CLK,
- the failing code inside clock_ops.c additionally depends on
CONFIG_PM,
- the forward declarations and other definitions in <linux/pm_clock.h>
depend on CONFIG_PM_CLK,
- CONFIG_PM_CLK is defined as PM && HAVE_CLK in kernel/power/Kconfig,
but it is not included on all architectures.
Fix this by protecting the failing code inside clock_ops.c by
CONFIG_PM_CLK instead of CONFIG_PM, so it matches <linux/pm_clock.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Or Gerlitz says:
====================
Mellanox mlx4 driver fixes for 4.3-rc7
Jack's fix is for a regression introduced in 4.3-rc1
Carol's fix addresses an issue which exists for while and
turns to beat us hard on PPC, please queue for -stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When doing memcpy/memset of EQEs, we should use sizeof struct
mlx4_eqe as the base size and not caps.eqe_size which could be bigger.
If caps.eqe_size is bigger than the struct mlx4_eqe then we corrupt
data in the master context.
When using a 64 byte stride, the memcpy copied over 63 bytes to the
slave_eq structure. This resulted in copying over the entire eqe of
interest, including its ownership bit -- and also 31 bytes of garbage
into the next WQE in the slave EQ -- which did NOT include the ownership
bit (and therefore had no impact).
However, once the stride is increased to 128, we are overwriting the
ownership bits of *three* eqes in the slave_eq struct. This results
in an incorrect ownership bit for those eqes, which causes the eq to
seem to be full. The issue therefore surfaced only once 128-byte EQEs
started being used in SRIOV and (overarchitectures that have 128/256
byte cache-lines such as PPC) - e.g after commit 77507aa249ae
"net/mlx4_core: Enable CQE/EQE stride support".
Fixes: 08ff32352d6f ('mlx4: 64-byte CQE/EQE support')
Signed-off-by: Carol L Soto <clsoto@linux.vnet.ibm.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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present
We do not set the ins_vlan field to zero when no vlan id is present in the packet.
Since WQEs in the TX ring are not zeroed out between uses, this oversight
could result in having vlan flags present in the WQE ctrl segment when no
vlan is preset.
Fixes: e38af4faf01d ('net/mlx4_en: Add support for hardware accelerated 802.1ad vlan')
Reported-by: Gideon Naim <gideonn@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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updates the bindings documents and dtsi file according to the review
comments[https://lkml.org/lkml/2015/9/21/670] from Rob Herring <robh@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: yankejian <yankejian@huawei.com>
Signed-off-by: huangdaode <huangdaode@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 2751c9882b947292fcfb084c4f604e01724af804 ("vhost: cross-endian
support for legacy devices") introduced a minor regression: even with
cross-endian disabled, and even on LE host, vhost_is_little_endian is
checking is_le flag so there's always a branch.
To fix, simply check virtio_legacy_is_little_endian first.
Cc: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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delete action of ETHTOOL_ID_ON/ETHTOOL_ID_OFF in XGE ethtool -p,
so Hardware control the LED state instead of software.
Signed-off-by: Li Peng <lipeng321@huawei.com>
Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: yankejian <yankejian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Increased TX_TIMEOUT to 5HZ to accommodate worst case situation
for traffic and CPU intensive use cases
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Abhimanyu <abhimanyu@freescale.com>
Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Building with CONFIG_DEBUG_SECTION_MISMATCH gives the following warning:
The function .msi_bitmap_alloc() references
the function __init .memblock_virt_alloc_try_nid().
Memory allocation in msi_bitmap_alloc() uses either slab allocator or
memblock boot time allocator depending on slab_is_available().
So the section mismatch warning is correct, but in practice there is no
bug so mark msi_bitmap_alloc() as __init_refok.
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
[mpe: Flesh out change log a bit]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Use of_get_next_parent() to simplifiy the logic in of_get_ibm_chip_id().
Original-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Commit a030e1e4bbd085bbcfd0a23f8d355fcd41f39bed make a change to use
kstrndup() instead of kmalloc() + strlcpy() in the pseries_of_derive_parent()
routine that introduces a subtle change in the parent path name generated.
The kstrndup() routine will copy n characters followed by a terminating null,
whereas strlcpy() will copy n-1 characters and add a terminating null.
This slight difference results in having a parent path that includes the
tailing '/' character, "/cpus/" vs. "/cpus". This then causes the subsequent
call to of_find_node_by_path() to fail, and in the case of DLPAR add
operations the DLPAR request fails.
This patch decrements the pointer returned from kbasename() to point to the
'/' character before the base name instead of the base name. This then
adjusts the string length calculations to not include the trailing '/'
in the parent path name.
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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http://git.linaro.org/people/daniel.lezcano/linux into pm-cpuidle
Pull ARM cpuidle changes for v4.4 from Daniel Lezcano.
* 'cpuidle/4.4' of http://git.linaro.org/people/daniel.lezcano/linux:
cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
cpuidle: mvebu: clean up multiple platform drivers
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git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valo says:
====================
here's a bigger pull request for 4.4. The diffstat looks scary as we
created a new directory realtek for all realtek drivers. In the future
I'm planning to create similar directories for all vendors, currently we
just have ath, mediatek and realtek. This change has been in linux-next
for a couple of weeks so it should be safe, but of course you never
know.
There's also a new driver rtl8xxxu for few realtek USB devices. This
just made it to the last linux-next build.
Otherwise there's nothing really special, more info below. If time
permits, and it's ok for you, I'm hoping to send you a one more pull
request this week.
brcmfmac
* using netdev carrier state
* add and rework some cfg80211 callbacks mainly for AP mode
* use devcoredump when triggered by firmware event
realtek
* create new directory drivers/net/wireless/realtek/ for all realtek
drivers, not visible to users (no kconfig changes etc)
* add rtl8xxxu, a new mac80211 driver for RTL8723AU, RTL8188CU,
RTL8188RU, RTL8191CU, RTL8192CU and hopefully more in the future
ath10k
* add board 2 API support for automatically choosing correct board file
* data path optimisations
* disable PCI power save for qca988x and QCA99x0 due to interop reasons
wil6210
* BlockAckReq support
* firmware crashdump using devcoredump
* capture all frames with sniffer
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for dumping a process' (classic BPF) seccomp
filters via ptrace.
PTRACE_SECCOMP_GET_FILTER allows the tracer to dump the user's classic BPF
seccomp filters. addr should be an integer which represents the ith seccomp
filter (0 is the most recently installed filter). data should be a struct
sock_filter * with enough room for the ith filter, or NULL, in which case
the filter is not saved. The return value for this command is the number of
BPF instructions the program represents, or negative in the case of errors.
Command specific errors are ENOENT: which indicates that there is no ith
filter in this seccomp tree, and EMEDIUMTYPE, which indicates that the ith
filter was not installed as a classic BPF filter.
A caveat with this approach is that there is no way to get explicitly at
the heirarchy of seccomp filters, and users need to memcmp() filters to
decide which are inherited. This means that a task which installs two of
the same filter can potentially confuse users of this interface.
v2: * make save_orig const
* check that the orig_prog exists (not necessary right now, but when
grows eBPF support it will be)
* s/n/filter_off and make it an unsigned long to match ptrace
* count "down" the tree instead of "up" when passing a filter offset
v3: * don't take the current task's lock for inspecting its seccomp mode
* use a 0x42** constant for the ptrace command value
v4: * don't copy to userspace while holding spinlocks
v5: * add another condition to WARN_ON
v6: * rebase on net-next
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
CC: Will Drewry <wad@chromium.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
CC: Andy Lutomirski <luto@amacapital.net>
CC: Pavel Emelyanov <xemul@parallels.com>
CC: Serge E. Hallyn <serge.hallyn@ubuntu.com>
CC: Alexei Starovoitov <ast@kernel.org>
CC: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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