On Tue, 20 Aug 2019 03:54:20 + Jisheng Zhang wrote:
>
>
> KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it
> eliminates the need for a trap, as well as the need to emulate or
> single-step instructions.
>
> This patch implements KPROBES_ON_FTRACE for arm64.
>
> Test
On Tue, 20 Aug 2019 08:23:08 +0200
Alexandre Belloni wrote:
> On 19/08/2019 18:31:38+0200, Thomas Bogendoerfer wrote:
> > diff --git a/drivers/mfd/ioc3.c b/drivers/mfd/ioc3.c
> > new file mode 100644
> > index ..5bcb3461a189
> > --- /dev/null
> > +++ b/drivers/mfd/ioc3.c
> > @@ -0,0 +1
On Tue, 20 Aug 2019, Jisheng Zhang wrote:
> KPROBES_ON_FTRACE avoids much of the overhead with regular kprobes as it
> eliminates the need for a trap, as well as the need to emulate or
> single-step instructions.
>
> This patch implements KPROBES_ON_FTRACE for arm64.
git grep 'This patch' Docum
On Tue, 20 Aug 2019, Jisheng Zhang wrote:
> This is to make the x86 kprobe_ftrace_handler() more common so that
> the code could be reused in future.
While I agree with the change in general, I can't find anything which
reuses that code. So the change log is pretty useless and I have no idea
how
Hi Thomas,
On Tue, 20 Aug 2019 10:53:58 +0200 (CEST) Thomas Gleixner wrote:
>
>
> On Tue, 20 Aug 2019, Jisheng Zhang wrote:
>
> > This is to make the x86 kprobe_ftrace_handler() more common so that
> > the code could be reused in future.
>
> While I agree with the change in general, I can't
On Tue, 20 Aug 2019 09:02:59 + Jisheng Zhang wrote:
>
>
> Hi Thomas,
>
> On Tue, 20 Aug 2019 10:53:58 +0200 (CEST) Thomas Gleixner wrote:
>
> >
> >
> > On Tue, 20 Aug 2019, Jisheng Zhang wrote:
> >
> > > This is to make the x86 kprobe_ftrace_handler() more common so that
> > > the code
On Tue, Aug 13, 2019 at 01:52:20PM -0700, Yu-cheng Yu wrote:
> An ELF file's .note.gnu.property indicates features the executable file
> can support. For example, the property GNU_PROPERTY_X86_FEATURE_1_AND
> indicates the file supports GNU_PROPERTY_X86_FEATURE_1_IBT and/or
> GNU_PROPERTY_X86_FEAT
Jisheng Zhang wrote:
For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
correspondingly.
Signed-off-by: Jisheng Zhang
---
kernel/kprobes.c | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 9873fc627d61..3fd2f68
On Tue, 20 Aug 2019 15:45:24 +0530 "Naveen N. Rao" wrote:
>
>
> Jisheng Zhang wrote:
> > For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
> > correspondingly.
> >
> > Signed-off-by: Jisheng Zhang
> > ---
> > kernel/kprobes.c | 10 +++---
> > 1 file changed, 7 insertions(+),
Hi Thomas:
Thanks for your review. Will fix your comment in the
next version.
On Mon, Aug 19, 2019 at 9:27 PM Thomas Gleixner wrote:
>
> On Mon, 19 Aug 2019, lantianyu1...@gmail.com wrote:
>
> > From: Tianyu Lan
> >
> > This patch adds
>
> Same git grep command as before
>
> > ne
On Tue, Aug 20, 2019 at 09:02:59AM +, Jisheng Zhang wrote:
> In v2, actually, the arm64 version's kprobe_ftrace_handler() is the same
> as x86's, the only difference is comment, e.g
>
> /* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */
>
> while in arm64
>
> /* Kprobe handler
On 19/08/2019 05:39, Vignesh Raghavendra wrote:
Hi,
On 16/08/19 3:50 PM, John Garry wrote:
On 06/08/2019 17:40, Schrempf Frieder wrote:
[...]
Hi,
Could someone kindly advise on the following:
Hi Vignesh,
I am looking at ACPI support only for an mtd spi nor driver we're
targeting for ma
On Thu, Aug 15, 2019 at 11:25:05PM +0200, Greg Kroah-Hartman wrote:
> +Contact
> +---
> +
> +The Linux kernel hardware security team is separate from the regular Linux
> +kernel security team.
> +
> +The team only handles the coordination of embargoed hardware security
> +issues. Reports of pu
On Mon, Aug 19, 2019 at 05:15:09PM +0800, John Wang wrote:
> Add the driver to monitor Inspur Power System power supplies
> with hwmon over pmbus.
>
> This driver adds sysfs attributes for additional power supply data,
> including vendor, model, part_number, serial number,
> firmware revision, har
On Mon, 2019-08-19 at 18:02 -0700, Sean Christopherson wrote:
> On Tue, Aug 13, 2019 at 01:52:16PM -0700, Yu-cheng Yu wrote:
> > There are a few places that need do_mmap() with mm->mmap_sem held.
> > Create an in-line function for that.
> >
> > Signed-off-by: Yu-cheng Yu
> > ---
> > include/linu
Hello Shawn,
On 8/19/2019 11:15 AM, Shawn Guo wrote:
> On Fri, Aug 09, 2019 at 11:29:10AM +, Stefan-gabriel Mirea wrote:
>> +config ARCH_S32
>> + bool "Freescale S32 SoC Family"
>
> So you still want to use 'Freescale' than 'NXP' here?
>
>> + help
>> + This enables support for
Hello Shawn,
Thank you for your suggestions!
On 8/19/2019 11:58 AM, Shawn Guo wrote:
> On Fri, Aug 09, 2019 at 11:29:12AM +, Stefan-gabriel Mirea wrote:
>> .../boot/dts/freescale/fsl-s32v234-evb.dts| 24
>
> The 'fsl-' prefix can be saved here, so that we can distinguish three
> fa
On Tue, Aug 20, 2019 at 09:58:50AM -0500, Josh Poimboeuf wrote:
> On Thu, Aug 15, 2019 at 11:25:05PM +0200, Greg Kroah-Hartman wrote:
> > +Contact
> > +---
> > +
> > +The Linux kernel hardware security team is separate from the regular Linux
> > +kernel security team.
> > +
> > +The team only h
On Tue, Aug 20, 2019 at 03:09:15PM +0100, John Garry wrote:
> On 19/08/2019 05:39, Vignesh Raghavendra wrote:
> > On 16/08/19 3:50 PM, John Garry wrote:
> > > About the child spi flash devices, is the recommendation to just use
> > > PRP0001 HID and "jedec,spi-nor" compatible?
> > I am not quite
On Mon, Aug 19, 2019 at 9:26 PM Frank Rowand wrote:
>
> On 8/19/19 5:09 PM, Saravana Kannan wrote:
> > On Mon, Aug 19, 2019 at 2:30 PM Frank Rowand wrote:
> >>
> >> On 8/19/19 1:49 PM, Saravana Kannan wrote:
> >>> On Mon, Aug 19, 2019 at 10:16 AM Frank Rowand
> >>> wrote:
>
> On 8/15/
On Wed, Aug 14, 2019 at 9:53 PM Knut Omang wrote:
>
> On Wed, 2019-08-14 at 07:52 +0200, Knut Omang wrote:
> > On Wed, 2019-08-14 at 11:02 +0900, Masahiro Yamada wrote:
> > > Hi Knut,
> > >
> > > On Wed, Aug 14, 2019 at 1:19 AM Knut Omang wrote:
> > > > On Tue, 2019-08-13 at 23:01 +0900, Masahiro
Hi Jisheng,
On Tue, 20 Aug 2019 09:02:59 +
Jisheng Zhang wrote:
> Hi Thomas,
>
> On Tue, 20 Aug 2019 10:53:58 +0200 (CEST) Thomas Gleixner wrote:
>
> >
> >
> > On Tue, 20 Aug 2019, Jisheng Zhang wrote:
> >
> > > This is to make the x86 kprobe_ftrace_handler() more common so that
> > > t
Hi Peter,
On Tue, 20 Aug 2019 15:21:10 +0200 Peter Zijlstra wrote:
>
>
> On Tue, Aug 20, 2019 at 09:02:59AM +, Jisheng Zhang wrote:
> > In v2, actually, the arm64 version's kprobe_ftrace_handler() is the same
> > as x86's, the only difference is comment, e.g
> >
> > /* Kprobe handler expect
Hi Jisheng,
On Tue, 20 Aug 2019 03:53:31 +
Jisheng Zhang wrote:
> For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
> correspondingly.
Either KPROBES_ON_FTRACE=y or not, ftrace_location() check must be
done correctly. If it failed, kprobes can modify the instruction
which can
Hi,
On Wed, 21 Aug 2019 10:52:47 +0900 Masami Hiramatsu wrote:
>
>
> Hi Jisheng,
>
> On Tue, 20 Aug 2019 09:02:59 +
> Jisheng Zhang wrote:
>
> > Hi Thomas,
> >
> > On Tue, 20 Aug 2019 10:53:58 +0200 (CEST) Thomas Gleixner wrote:
> >
> > >
> > >
> > > On Tue, 20 Aug 2019, Jisheng Zhang w
Hi,
On Wed, 21 Aug 2019 11:07:39 +0900 Masami Hiramatsu wrote:
>
>
> Hi Jisheng,
>
> On Tue, 20 Aug 2019 03:53:31 +
> Jisheng Zhang wrote:
>
> > For KPROBES_ON_FTRACE case, we need to adjust the kprobe's addr
> > correspondingly.
>
> Either KPROBES_ON_FTRACE=y or not, ftrace_location(
Hi,
On Mon, Aug 12, 2019 at 10:49:56AM +0800, Wu Hao wrote:
> This patch makes init callback of sub features optional. With
> this change, people don't need to prepare any empty init callback.
>
> Signed-off-by: Wu Hao
Acked-by: Moritz Fischer
> ---
> drivers/fpga/dfl.c | 10 ++
> 1 f
Hi Hao,
On Mon, Aug 12, 2019 at 10:49:57AM +0800, Wu Hao wrote:
> This patch takes advantage of driver core which helps to create
> and remove sysfs attribute files, so there is no need to register
> sysfs entries manually in dfl-fme platform river code.
Nit: s/river/driver
>
> Signed-off-by: Wu
On Wed, 2019-08-21 at 10:47 +0900, Masahiro Yamada wrote:
> On Wed, Aug 14, 2019 at 9:53 PM Knut Omang wrote:
> >
> > On Wed, 2019-08-14 at 07:52 +0200, Knut Omang wrote:
> > > On Wed, 2019-08-14 at 11:02 +0900, Masahiro Yamada wrote:
> > > > Hi Knut,
> > > >
> > > > On Wed, Aug 14, 2019 at 1:19 A
On Tue, Aug 20, 2019 at 08:24:06PM -0700, Moritz Fischer wrote:
> Hi,
>
> On Mon, Aug 12, 2019 at 10:49:56AM +0800, Wu Hao wrote:
> > This patch makes init callback of sub features optional. With
> > this change, people don't need to prepare any empty init callback.
> >
> > Signed-off-by: Wu Hao
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