From: Joe Stringer
Date: Fri, 28 Aug 2015 19:22:11 -0700
> Fix build with !CONFIG_NF_CONNTRACK_MARK && CONFIG_OPENVSWITCH_CONNTRACK
>
> Fixes: 182e304 ("openvswitch: Allow matching on conntrack mark")
> Reported-by: Simon Horman
> Signed-off-by: Joe Stringer
Applied, thanks.
--
To
From: Raghavendra K T
Date: Sat, 29 Aug 2015 08:27:15 +0530
> resending the patch with memset. Please let me know if you want to
> resend all the patches.
Do not post patches as replies to existing discussion threads.
Instead, make a new, fresh, patch posting, updating the Subject line
as
From: Alexey Klimov
Date: Sat, 29 Aug 2015 04:45:03 +0300
>> @@ -717,9 +833,24 @@ static void nic_unregister_interrupts(struct nicpf *nic)
>> nic_disable_msix(nic);
>> }
>>
>> +static int nic_num_sqs_en(struct nicpf *nic, int vf_en)
>> +{
>> + int pos = 0, sqs_per_vf =
This is the final patch which makes basic BPF filter work. After
applying this patch, users are allowed to use BPF filter like:
# perf record --event ./hello_world.c ls
In this patch PERF_EVENT_IOC_SET_BPF ioctl is used to attach eBPF
program to a newly created perf event. The file descriptor
Before this patch, --filter options can't be applied to BPF object
'events'. For example, the following command:
# perf record -e cycles -e test_bpf.o --exclude-perf -a sleep 1
doesn't apply '--exclude-perf' to events in test_bpf.o. Instead, the
filter will be applied to 'cycles' event. This is
Cross compiling perf to other platform failed due to missing symbol:
...
AR /pathofperf/libperf.a
LD /pathofperf/tests/perf-in.o
LD /pathofperf/perf-in.o
LINK /pathofperf/perf
/pathofperf/libperf.a(libperf-in.o): In function `intel_pt_synth_branch_sample':
The 'bpf-loader.[ch]' files are introduced in this patch. Which will be
the interface between perf and libbpf. bpf__prepare_load() resides in
bpf-loader.c. Dummy functions should be used because bpf-loader.c is
available only when CONFIG_LIBBPF is on.
Functions in bpf-loader.c should not report
This patch allows linking dummy evsel onto evlist as a placeholder. It
is for following patch which allows passing BPF object using '--event
object.o'.
Doesn't link other event selectors, if passing a BPF object file to
'--event', nothing is linked onto evlist. Instead, events described in
BPF
This patch adds BPF testcase for testing BPF event filtering.
By utilizing the result of 'perf test LLVM', this patch compiles the
eBPF sample program then test it ability. The BPF script in 'perf test
LLVM' collects half of execution of epoll_pwait(). This patch runs 111
times of it, so the
Before this patch there's no way to connect a loaded bpf object
to its source file. However, during applying perf's '--filter' to BPF
object, without this connection makes things harder, because perf loads
all programs together, but '--filter' setting is for each object.
API of
If parse_events__scanner() collects no entry, perf_evlist__last(evlist)
is invalid. Then setting of cmdline_group_boundary touches invalid.
It could happend in currect BPF implementation. See [1]. Although it
can be fixed, for safety reason it whould be better to introduce this
check.
Instead of
This patch replaces the original toy BPF program with previous introduced
bpf-script-example.c. Dynamically embedded it into 'llvm-src.c'.
The newly introduced BPF program attaches a BPF program at
'sys_epoll_pwait()', and collect half samples from it. perf itself never
use that syscall, so
This patch drops struct __event_package structure. Instead, it adds
trace_probe_event into 'struct perf_probe_event'.
trace_probe_event information gives further patches a chance to access
actual probe points and actual arguments. Using them, bpf_loader will
be able to attach one bpf program to
By introducing new rules in tools/perf/util/parse-events.[ly], this
patch enables 'perf record --event bpf_file.o' to select events by an
eBPF object file. It calls parse_events_load_bpf() to load that file,
which uses bpf__prepare_load() and finally calls bpf_object__open() for
the object files.
This patch utilizes bpf_program__set_private(), binding perf_probe_event
with bpf program by private field.
Saving those information so 'perf record' knows which kprobe point a program
should be attached.
Since data in 'struct perf_probe_event' is build by 2 stages, tev_ready
is used to mark
From: He Kuang
Support helper function __get_dynamic_array_len() in libtraceevent,
this function is used accompany with __print_array() or __print_hex(),
but currently it is not an available function in the function list of
process_function().
The total allocated length of the dynamic array is
This patch generates prologue for a BPF program which fetch arguments
for it. With this patch, the program can have arguments as follow:
SEC("lock_page=__lock_page page->flags")
int lock_page(struct pt_regs *ctx, int err, unsigned long flags)
{
return 1;
}
This patch passes at most
Before this patch, add_perf_probe_events() init symbol maps only for
uprobe if the first 'struct perf_probe_event' passed to it is a uprobe
event. This is a trick because 'perf probe''s command line syntax
constrains the first elements of the probe_event arrays must be kprobes
if there is one
This patch utilizes bpf_object__load() provided by libbpf to load all
objects into kernel.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: Brendan Gregg
Cc: Daniel Borkmann
Cc: David Ahern
Cc: He Kuang
Cc: Jiri Olsa
Cc: Kaixu Xia
Cc: Masami Hiramatsu
Cc: Namhyung Kim
Cc: Paul
From: He Kuang
Make perf-record command support --vmlinux option if BPF_PROLOGUE is on.
'perf record' needs vmlinux as the source of DWARF info to generate
prologue for BPF programs, so path of vmlinux should be specified.
Short name 'k' has been taken by 'clockid'. This patch skips the short
If both LIBBPF and DWARF are detected, it is possible to create prologue
for eBPF programs to help them accessing kernel data. HAVE_BPF_PROLOGUE
and CONFIG_BPF_PROLOGUE is added as flags for this feature.
PERF_HAVE_ARCH_GET_REG_OFFSET indicates an architecture supports
converting name of a
This patch generates prologue for each 'struct probe_trace_event' for
fetching arguments for BPF programs.
After bpf__probe(), iterate over each programs to check whether
prologue is required. If none of 'struct perf_probe_event' a program
will attach to has at least one argument, simply skip
This patch allows creating only one BPF program for different
'probe_trace_event'(tev) generated by one 'perf_probe_event'(pev), if
their prologues are identical.
This is done by comparing argument list of different tev, and maps type
of prologue and tev using a mapping array. This patch utilizes
From: He Kuang
arch_get_reg_info() is a helper function which converts register name
like "%rax" to offset of a register in 'struct pt_regs', which is
required by BPF prologue generator.
This patch replaces original string table by a 'struct reg_info' table,
which records offset of registers
This patch adds a bpf_fd field to 'struct evsel' then introduces method
to config it. In bpf-loader, a bpf__foreach_tev() function is added,
which calls the callback function for each 'struct probe_trace_event'
events for each bpf program with their file descriptors. In evlist.c,
In this patch, caller of libbpf is able to control the loaded programs
by installing a preprocessor callback for a BPF program. With
preprocessor, different instances can be created from one BPF program.
This patch will be used by perf to generate different prologue for
different 'struct
From: He Kuang
This patch moves filter.h from include/linux/kernel.h to
tools/include/linux/filter.h to enable other libraries use macros in
it, like libbpf which will be introduced by further patches. Currenty,
the moved filter.h only contains the useful macros needed by libbpf
for not
This patch appends new syntax to BPF object section name to support
probing at uprobe event. Now we can use BPF program like this:
SEC(
"target=/lib64/libc.so.6\n"
"libcwrite=__write"
)
int libcwrite(void *ctx)
{
return 1;
}
Where, in section name of a program, before the main config
When failure occures in add_probe_trace_event(), args in
probe_trace_event is incomplete. Since information in it may be used
in further, this patch frees the allocated memory and set it to NULL
to avoid dangling pointer.
Signed-off-by: Wang Nan
Cc: Alexei Starovoitov
Cc: Brendan Gregg
Cc:
This patch suppresses message output by add_perf_probe_events() and
del_perf_probe_events() if they are triggered by BPF loading. Before
this patch, when using 'perf record' with BPF object/source as event
selector, following message will be output:
Added new event:
Although previous patch allows setting BPF compiler related options in
perfconfig, on some ad-hoc situation it still requires passing options
through cmdline. This patch introduces 2 options to 'perf record' for
this propose: --clang-path and --clang-opt.
Signed-off-by: Wang Nan
Cc: Alexei
This patch provides infrastructure for passing source files to --event
directly using:
# perf record --event bpf-file.c command
This patch does following works:
1) Allow passing '.c' file to '--event'. parse_events_load_bpf() is
expanded to allow caller tell it whether the passed file is
This patch introduces bpf__{un,}probe() functions to enable callers to
create kprobe points based on section names of BPF programs. It parses
the section names of each eBPF program and creates corresponding 'struct
perf_probe_event' structures. The parse_perf_probe_command() function is
used to do
By adding libbpf into perf's Makefile, this patch enables perf to build
libbpf during building if libelf is found and neither NO_LIBELF nor
NO_LIBBPF is set. The newly introduced code is similar to libapi and
libtraceevent building in Makefile.perf.
MANIFEST is also updated for 'make
Hi Arnaldo and Ingo,
Several small proglems are fixed based on yesterday's pull request. Please
see below. Since patch order is changed (original 20/32 and 32/32 are
dropped), I decide to send all of them again. Sorry for the noisy.
In addition: I collect a cross-compiling fix I posted yesterday
On Sat, Aug 29, 2015 at 9:11 AM, Luis R. Rodriguez wrote:
> On Thu, Aug 27, 2015 at 08:55:13AM +0800, Ming Lei wrote:
>> On Thu, Aug 27, 2015 at 2:07 AM, Linus Torvalds
>> wrote:
>> > On Wed, Aug 26, 2015 at 1:06 AM, Liam Girdwood
>> > wrote:
>> >>
>> >> I think the options are to either :-
>>
On Fri, 2015-08-28 at 15:48 -0600, Toshi Kani wrote:
> On Fri, 2015-08-28 at 14:47 -0700, Dan Williams wrote:
> > On Fri, Aug 28, 2015 at 2:41 PM, Toshi Kani wrote:
> > > On Wed, 2015-08-26 at 21:34 +, Williams, Dan J wrote:
> > [..]
> > > > -#define ARCH_MEMREMAP_PMEM MEMREMAP_WB
> > >
> >
Hi Mike,
On Tue, Aug 25, 2015 at 02:50:51PM -0700, Michael Turquette wrote:
> Quoting Maxime Ripard (2015-08-20 08:15:10)
> > On Tue, Aug 18, 2015 at 09:43:56AM -0700, Michael Turquette wrote:
> > > Quoting Maxime Ripard (2015-08-18 08:45:52)
> > > > Hi Mike,
> > > >
> > > > On Fri, Aug 07, 2015
On Wed, Aug 26, 2015 at 07:54:23AM +0100, Lee Jones wrote:
> On Tue, 25 Aug 2015, Michael Turquette wrote:
>
> > Quoting Maxime Ripard (2015-08-20 08:15:10)
> > > On Tue, Aug 18, 2015 at 09:43:56AM -0700, Michael Turquette wrote:
> > > > Quoting Maxime Ripard (2015-08-18 08:45:52)
> > > > > Hi
From: Oleg Nesterov
Currently down_write/up_write calls synchronize_sched_expedited()
twice, which is evil. Change this code to rely on rcu-sync primitives.
This avoids the _expedited "big hammer", and this can be faster in
the contended case or even in the case when a single thread does
From: Oleg Nesterov
This commit adds the new struct rcu_sync_ops which holds sync/call
methods, and turns the function pointers in rcu_sync_struct into an array
of struct rcu_sync_ops. This simplifies the "init" helpers by collapsing
a switch statement and explicit multiple definitions into a
From: Oleg Nesterov
The rcu_sync infrastructure can be thought of as infrastructure to be
used to implement reader-writer primitives having extremely lightweight
readers during times when there are no writers. The first use is in
the percpu_rwsem used by the VFS subsystem.
This infrastructure
From: Oleg Nesterov
Code like this in inline functions confuses some recent versions of gcc:
const int n = const-expr;
whatever_t array[n];
For more details, see:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67055#c13
This compiler bug results in the following failure
From: Oleg Nesterov
Update the comments broken by the previous change.
Signed-off-by: Oleg Nesterov
Signed-off-by: Paul E. McKenney
---
kernel/locking/percpu-rwsem.c | 50 ++-
1 file changed, 11 insertions(+), 39 deletions(-)
diff --git
Hello!
This series implements an rcu_sync primitive and updates percpu_rwsem to
be implemented in terms of it. This is an updated version of the series
posted by Oleg Nesterov, responding to feedback from Ingo Molnar. The
patches in this series, all courtesy of Oleg (and some in turn based
on
From: Oleg Nesterov
This is the temporary ugly hack which will be reverted later. We only
need it to ensure that the next patch will not break "change sb_writers
to use percpu_rw_semaphore" patches routed via the VFS tree.
The alloc_super()->destroy_super() error path assumes that it is safe
to
From: Oleg Nesterov
Based on Peter Zijlstra's earlier patch.
Change percpu_down_read() to use __down_read(), this way we can
do rwsem_acquire_read() unconditionally at the start to make this
code more symmetric and clean.
Originally-From: Peter Zijlstra
Signed-off-by: Oleg Nesterov
From: Oleg Nesterov
This commit validates that the caller of rcu_sync_is_idle() holds the
corresponding type of RCU read-side lock, but only in kernels built
with CONFIG_PROVE_RCU=y. This validation is carried out via a new
rcu_sync_ops->held() method that is checked within rcu_sync_is_idle().
From: Oleg Nesterov
This commit allows rcu_sync structures to be safely deallocated,
The trick is to add a new ->wait field to the gp_ops array.
This field is a pointer to the rcu_barrier() function corresponding
to the flavor of RCU in question. This allows a new rcu_sync_dtor()
to wait for
On Fri, Aug 28, 2015 at 5:16 PM, Toshi Kani wrote:
> ARCH_MEMREMAP_PMEM is defined on x86_64 only per ARCH_HAS_PMEM_API.
> The following compile error in __nfit_spa_map() was observed on
> x86_32 as it refers ARCH_MEMREMAP_PMEM without #ifdef.
>
> drivers/acpi/nfit.c:1205:8: error:
On Fri, Aug 28, 2015 at 6:18 PM, Toshi Kani wrote:
> The following compile error was observed on x86_32 since nfit.c
> relies on to include , which only
> works when CONFIG_ARCH_HAS_PMEM_API is set on x86_64.
>
> drivers/acpi/nfit.c:1085:5: error: implicit declaration of
> function
On Sat, 2015-08-29 at 08:27 +0530, Raghavendra K T wrote:
>
> /* Use put_unaligned() because stats may not be aligned for u64. */
> put_unaligned(items, [0]);
> for (i = 1; i < items; i++)
> - put_unaligned(snmp_fold_field64(mib, i, syncpoff), [i]);
> +
On Fri, Aug 28, 2015 at 7:42 PM, Eric Dumazet wrote:
>
> We could add yet another cond_resched() in the reverse loop, or we
> can simply remove the reversal, as I do not think anything
> would depend on order of task_work_add() submitted works.
So I think this should be ok, with things like file
This patch implements arch_get_reg_info() for arm64 to enable
HAVE_BPF_PROLOGUE feature. For arm64, structure pt_regs is not composed
by fields of register names but an array of regs, so here we simply
multiply fixed register size by index number to get the byte offset.
Signed-off-by: He Kuang
Hi Ma Jun,
On Wed, Aug 19, 2015 at 5:55 AM, MaJun wrote:
> From: Ma Jun
>
> Mbigen means Message Based Interrupt Generator(MBIGEN).
>
> Its a kind of interrupt controller that collects
>
> the interrupts from external devices and generate msi interrupt.
>
> Mbigen is applied to reduce the
On Fri, Aug 28, 2015 at 07:38:56PM +0200, David Sterba wrote:
> On Thu, Aug 27, 2015 at 11:53:45PM +, Alexandru Moise wrote:
> > Just call kmem_cache_zalloc() instead of calling kmem_cache_alloc().
> > We're just initializing most fields to 0, false and NULL later on
> > _anyway_, so to make
* David Miller [2015-08-28 11:24:13]:
> From: Raghavendra K T
> Date: Fri, 28 Aug 2015 12:09:52 +0530
>
> > On 08/28/2015 12:08 AM, David Miller wrote:
> >> From: Raghavendra K T
> >> Date: Wed, 26 Aug 2015 23:07:33 +0530
> >>
> >>> @@ -4641,10 +4647,12 @@ static inline void
On 2015/8/29 10:49, Alexei Starovoitov wrote:
On 8/28/15 7:36 PM, Wangnan (F) wrote:
For current patch 32/32, I think it is useful enough for some simple
cases,
and we have already start using it internally. What about keep it as
what it
is now and create a independent method for your
On 8/28/15 7:36 PM, Wangnan (F) wrote:
For current patch 32/32, I think it is useful enough for some simple cases,
and we have already start using it internally. What about keep it as
what it
is now and create a independent method for your usecase?
well, though the patch is small and
On 8/28/15 7:14 PM, xiakaixu wrote:
Right, this is just a little example. Actually, I have tested this
ability on kernel side and user space side, that is kprobe and uprobe.
great to hear.
At this time i wish to get your comment on the current chosen implementation.
Now the struct
From: Eric Dumazet
In commit f341861fb0b ("task_work: add a scheduling point in
task_work_run()") I fixed a latency problem adding a cond_resched()
call.
Later, commit ac3d0da8f329 added yet another loop to reverse a list,
bringing back the latency spike :
I've seen in some cases this loop
On Fri, Aug 28, 2015 at 07:22:11PM -0700, Joe Stringer wrote:
> Fix build with !CONFIG_NF_CONNTRACK_MARK && CONFIG_OPENVSWITCH_CONNTRACK
>
> Fixes: 182e304 ("openvswitch: Allow matching on conntrack mark")
> Reported-by: Simon Horman
> Signed-off-by: Joe Stringer
Thanks Joe,
this seems to
On 2015/8/29 10:22, Alexei Starovoitov wrote:
On 8/28/15 7:15 PM, Wangnan (F) wrote:
I'd like to see whether it is possible to create dynamic tracepoints so
different receivers can listen on different tracepoints.
see my proposal A. I think ftrace instances might work for this.
I'm not
On 28 August 2015 at 16:57, Simon Horman wrote:
> On Wed, Aug 26, 2015 at 11:31:43AM -0700, Joe Stringer wrote:
>> The goal of this series is to allow OVS to send packets through the Linux
>> kernel connection tracker, and subsequently match on fields populated by
>> conntrack. This functionality
Fix build with !CONFIG_NF_CONNTRACK_MARK && CONFIG_OPENVSWITCH_CONNTRACK
Fixes: 182e304 ("openvswitch: Allow matching on conntrack mark")
Reported-by: Simon Horman
Signed-off-by: Joe Stringer
---
net/openvswitch/conntrack.c | 17 ++---
1 file changed, 14 insertions(+), 3
On 8/28/15 7:15 PM, Wangnan (F) wrote:
I'd like to see whether it is possible to create dynamic tracepoints so
different receivers can listen on different tracepoints.
see my proposal A. I think ftrace instances might work for this.
I'm not sure about 'format' part though. Kernel side
On Thu, Aug 27, 2015 at 07:54:33PM -0400, Mimi Zohar wrote:
> On Thu, 2015-08-27 at 23:29 +0200, Luis R. Rodriguez wrote:
> > On Thu, Aug 27, 2015 at 10:57:23AM -, David Woodhouse wrote:
> > > > Luis R. Rodriguez wrote:
> > > >
> > > >> "PKCS#7: Add an optional authenticated attribute to hold
On 2015/8/29 9:34, Alexei Starovoitov wrote:
On 8/28/15 6:19 PM, Wangnan (F) wrote:
For me, I use bpf_output_trace_data() to output information like PMU
count
value. Perf is the only receiver, so global collector is perfect.
Could you
please describe your usecase in more detail?
there is
于 2015/8/29 9:28, Alexei Starovoitov 写道:
> On 8/27/15 3:42 AM, Kaixu Xia wrote:
>> An example is pasted at the bottom of this cover letter. In that example,
>> we can get the cpu_cycles and exception taken in sys_write.
>>
>> $ cat /sys/kernel/debug/tracing/trace_pipe
>> $ ./perf record
After a bit of poking around wondering why my 32-bit user-space can't
seem to send a proper ioctl(BLKPG) to an MTD on my 64-bit kernel
(ARM64), I noticed that struct blkpg_ioctl_arg is actually pretty
unsuitable for use in the ioctl() ABI, due to its use of raw pointers,
and its lack of
On 08/28/15 17:17, Luis R. Rodriguez wrote:
>
> arch/s390/Kconfig | 8 +
> arch/s390/include/asm/io.h| 11 ---
> arch/s390/include/asm/pci.h | 2 --
> arch/s390/include/asm/pci_iomap.h | 33 +
> arch/s390/pci/pci.c | 2 ++
On Fri, Aug 28, 2015 at 06:26:05PM -0400, Paul Moore wrote:
> On Fri, Aug 28, 2015 at 7:20 AM, Roberts, William C
> wrote:
> > Even triggered updates make sense, since you can at least have some form of
> > trust
> > of where that binary policy came from.
>
> It isn't always that simple, see my
On Fri, Aug 28, 2015 at 11:20:10AM +, Roberts, William C wrote:
> > -Original Message-
> > From: Paul Moore [mailto:p...@paul-moore.com]
> >
> > While I question the usefulness of a SELinux policy signature in the
> > general case,
> > there are some situations where it might make
On 2015/8/29 0:54, Thomas Gleixner wrote:
> On Thu, 27 Aug 2015, Keith Busch wrote:
>
>> This patch adds struct x86_msi_ops to x86's PCI sysdata. This gives a
>> host bridge driver the option to provide alternate MSI Data Register
>> and MSI-X Table Entry programming for devices in PCI domains
Hi Aleksey,
let me add few minor points below.
On Fri, Aug 28, 2015 at 5:59 PM, Aleksey Makarov
wrote:
> From: Sunil Goutham
>
> Rework interrupt handler to avoid checking IRQ affinity of
> CQ interrupts. Now separate handlers are registered for each IRQ
> including RBDR. Also register
On Fri, Aug 28, 2015 at 5:59 PM, Aleksey Makarov
wrote:
> From: Sunil Goutham
>
> This patch adds support for handling multiple qsets assigned to a
> single VF. There by increasing no of queues from earlier 8 to max
> no of CPUs in the system i.e 48 queues on a single node and 96 on
> dual node
Hello,
So, looking at this, I don't see how it supports the algorithm I've
been using
for years. For that algorithm to successfully migrate PRs across multiple paths
on a single machine without affecting other possible users (who may legitimately
have PR'ed the same device) I need PR_IN
On 8/28/15 6:19 PM, Wangnan (F) wrote:
For me, I use bpf_output_trace_data() to output information like PMU count
value. Perf is the only receiver, so global collector is perfect. Could you
please describe your usecase in more detail?
there is a special receiver in user space that only wants
On Wed, 2015-08-26 at 20:16 +0200, Peter Zijlstra wrote:
> Of course, if anything else prior to futex_atomic_op_inuser() implies an
> (RCsc) RELEASE or stronger the primitive can do without providing
> anything itself.
>
> This turns out to be the case, a successful get_futex_key() implies a
>
On 8/27/15 3:42 AM, Kaixu Xia wrote:
An example is pasted at the bottom of this cover letter. In that example,
we can get the cpu_cycles and exception taken in sys_write.
$ cat /sys/kernel/debug/tracing/trace_pipe
$ ./perf record --event perf-bpf.o ls
...
cat-1653
Add a binding documentation for the Broadcom BCM7038 PWM controller found in
BCM7xxx chips.
Signed-off-by: Florian Fainelli
---
Changes in v3:
- list 'clocks' property as mandatory
.../devicetree/bindings/pwm/brcm,bcm7038-pwm.txt | 20
1 file changed, 20 insertions(+)
Add support for the BCM7038-style PWM controller found in all BCM7xxx STB SoCs.
This controller has a hardcoded 2 channels per controller, and cascades a
variable frequency generator on top of a fixed frequency generator which offers
a range of a 148ns period all the way to ~622ms periods.
Hi,
This patch series add PWM support for the Broadcom BCM7xxx
chips which feature one or more PWM controllers capable of
output periods from 148ns to ~622ms using a combination of
variable and fixed frequency settings.
The controller does not support setting a polarity.
This is based on
The following compile error was observed on x86_32 since nfit.c
relies on to include , which only
works when CONFIG_ARCH_HAS_PMEM_API is set on x86_64.
drivers/acpi/nfit.c:1085:5: error: implicit declaration of
function 'mmio_flush_range' [-Werror=implicit-function-declaration]
Change
On 2015/8/29 8:45, Alexei Starovoitov wrote:
On 8/28/15 12:06 AM, Wang Nan wrote:
his patch adds a new trace event to establish infrastruction for bpf to
output data to perf. Userspace perf tools can detect and use this event
as using the existing tracepoint events.
New bpf trace event entry
From: "Luis R. Rodriguez"
We are phasing out the usermode helper from the kernel,
systemd already ripped support for this a while ago, the
only remaining valid user is the Dell rbu driver. The
firmware is now being read directly from the filesystem
by the kernel. What this means is that if you
On Thu, Aug 27, 2015 at 08:55:13AM +0800, Ming Lei wrote:
> On Thu, Aug 27, 2015 at 2:07 AM, Linus Torvalds
> wrote:
> > On Wed, Aug 26, 2015 at 1:06 AM, Liam Girdwood
> > wrote:
> >>
> >> I think the options are to either :-
> >>
> >> 1) Don not support audio DSP drivers using topology data as
Currently, if the resource table is completely missing in the
firmware, powering up the remoteproc fails silently. Add a message
indicating that the resource table is missing in the firmware.
Signed-off-by: Stefan Agner
---
Hi Ohad,
I am currently working on remoteproc support for Freescale
The drivers have a I2C device ID table that is used to create the module
aliases and also "cyttsp" and "cyttsp4" are not supported I2C device IDs
so these module aliases are never used.
Signed-off-by: Javier Martinez Canillas
---
drivers/input/touchscreen/cyttsp4_i2c.c | 1 -
On Aug 28, 2015 2:54 PM, "Andreas Grünbacher"
wrote:
>
> 2015-08-28 23:36 GMT+02:00 Andy Lutomirski :
> > Silly question from the peanut gallery: is there any such thing as
> > opening an fd pointing at a file such that the "open file description"
> > (i.e. the struct file) captures the right to
On Fri, 2015-08-28 at 17:35 -0700, Joe Perches wrote:
> That of course depends on what a "leaf" is and
> whether or not any other function call in the
> "leaf" consumes stack.
>
> inet6_fill_ifla6_attrs does call other functions
> (none of which has the stack frame size of k.alloc)
Just
On 2015/8/28 15:05, Wang Nan wrote:
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ef5fde6..24c8b63 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -3090,6 +3090,7 @@ int cmd_trace(int argc, const char **argv, const char
*prefix
On 8/28/15 12:06 AM, Wang Nan wrote:
his patch adds a new trace event to establish infrastruction for bpf to
output data to perf. Userspace perf tools can detect and use this event
as using the existing tracepoint events.
New bpf trace event entry in debugfs:
The contents of smem are always in little endian, but the smem
driver is not capable of being used on big endian CPUs. Annotate
the little endian data members and update the code to do the
proper byte swapping.
Cc: Bjorn Andersson
Signed-off-by: Stephen Boyd
---
drivers/soc/qcom/smem.c | 230
The driver has a I2C device id table that is used to create the modaliases
and also "pfuze100-regulator" is not a supported I2C id, so is never used.
Signed-off-by: Javier Martinez Canillas
---
drivers/regulator/pfuze100-regulator.c | 1 -
1 file changed, 1 deletion(-)
diff --git
On Fri, 2015-08-28 at 17:06 -0700, Eric Dumazet wrote:
> On Fri, 2015-08-28 at 16:12 -0700, Joe Perches wrote:
> > Generally true. It's always difficult to know how much
> > stack has been consumed though and smaller stack frames
> > are generally better.
[]
> So for a _leaf_ function, it is
On Wed, Aug 26, 2015 at 02:19:41AM +0200, Javier Martinez Canillas wrote:
> The driver is a platform driver and not a I2C driver so its modalias
> should be exported with MODULE_DEVICE_TABLE(platform,...) instead of
> MODULE_DEVICE_TABLE(i2c,...).
>
> Also, remove the unnecessary
On Wed, Aug 26, 2015 at 11:19:31AM -0700, Benson Leung wrote:
> Search for "vaildpage_count" and replace with "validpage_count".
>
> Signed-off-by: Benson Leung
Applied, thank you.
> ---
> drivers/input/mouse/elan_i2c_core.c | 18 +-
> 1 file changed, 9 insertions(+), 9
On 8/28/15 12:06 AM, Wang Nan wrote:
From: He Kuang
Support helper function __get_dynamic_array_len() in libtraceevent,
this function is used accompany with __print_array() or __print_hex(),
but currently it is not an available function in the function list of
process_function().
The total
On 8/28/15 12:05 AM, Wang Nan wrote:
Hi Arnaldo,
This time I adjust all Cc and Link field in each patch.
Four new patches (1,2,3,12/32) is newly introduced for fixing a bug
related to '--filter' option. Patch 06/32 is also modified. Please keep
an eye on it.
Arnaldo, what is the latest news
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