On Wed, 2019-04-24 at 09:14 +0200, Christophe Leroy wrote:
>
> Le 24/04/2019 à 08:39, Russell Currey a écrit :
> > Implement code to walk all pages and warn if any are found to be
> > both
> > writable and executable. Depends on STRICT_KERNEL_RWX enabled, and
> > is
> > behind the DEBUG_WX config
On Wed, 2019-01-16 at 14:47 -0200, Breno Leitao wrote:
> There is a kernel crash that happens if rt_sigreturn is called inside a
> transactional block.
>
> This crash happens if the kernel hits an in-kernel page fault when
> accessing userspace memory, usually through copy_ckvsx_to_user(). A major
On 01/05/2019 16:09, Alistair Popple wrote:
> Hi Alexey,
>
> Do we need a seperate patch to allow this to be used? Last time I tried
> calling dma_set_mask(52) on powernv it returned an error and there doesn't
> seem to be anything obvious to me in this series to change that behaviour,
> but
This small series consists of some small cleanups and simplifications
of the QUICC engine driver, and introduces a new DT binding that makes
it much easier to support other variants of the QUICC engine IP block
that appears in the wild: There's no reason to expect in general that
the number of vali
The current array of struct qe_snum use 256*4 bytes for just keeping
track of the free/used state of each index, and the struct layout
means there's another 768 bytes of padding. If we just unzip that
structure, the array of snum values just use 256 bytes, while the
free/inuse state can be tracked
The 'try of_find_compatible_node(NULL, NULL, "fsl,qe"), fall back to
of_find_node_by_type(NULL, "qe")' pattern is repeated five
times. Factor it into a common helper.
Reviewed-by: Christophe Leroy
Signed-off-by: Rasmus Villemoes
---
drivers/soc/fsl/qe/qe.c | 71 +
Reading table 4-30, and its footnotes, of the QUICC Engine Block
Reference Manual shows that the set of snum _values_ is not
necessarily just a function of the _number_ of snums, as given in the
fsl,qe-num-snums property.
As an alternative, to make it easier to add support for other variants
of th
Add driver support for the newly introduced fsl,qe-snums property.
Conveniently, of_property_read_variable_u8_array does exactly what we
need: If the property fsl,qe-snums is found (and has an allowed size),
the array of values get copied to snums, and the return value is the
number of snums - we
The local variable snum_init has no reason to have static storage duration.
Reviewed-by: Christophe Leroy
Signed-off-by: Rasmus Villemoes
---
drivers/soc/fsl/qe/qe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/fsl/qe/qe.c b/drivers/soc/fsl/qe/qe.c
index 612d9
The comment "No QE ever has fewer than 28 SNUMs" is false; e.g. the
MPC8309 has 14. The code path returning -EINVAL is also a recipe for
instant disaster, since the caller (qe_snums_init) uncritically
assigns the return value to the unsigned qe_num_of_snum, and would
thus proceed to attempt to copy
On Thursday, April 25, 2019 5:20:35 PM CEST Changbin Du wrote:
> On Thu, Apr 25, 2019 at 10:44:14AM +0200, Rafael J. Wysocki wrote:
> > .On Wed, Apr 24, 2019 at 7:54 PM Changbin Du wrote:
> > >
> > > Hi All,
> > > The kernel now uses Sphinx to generate intelligent and beautiful
> > > documentatio
On 5/1/19 7:14 AM, Michael Ellerman wrote:
"Aneesh Kumar K.V" writes:
This patch fixes the below crash by making sure we touch the subpage protection
related structures only if we know they are allocated on the platform. With
radix translation we don't allocate hash context at all and trying t
Laurent Dufour writes:
> Le 23/04/2019 à 18:04, Dave Hansen a écrit :
>> On 4/23/19 4:16 AM, Laurent Dufour wrote:
...
>>> There are 2 assumptions here:
>>> 1. 'start' and 'end' are page aligned (this is guaranteed by
>>> __do_munmap().
>>> 2. the VDSO is 1 page (this is guaranteed by the uni
Hi Thiago,
Thiago Jung Bauermann writes:
> Nathan Lynch writes:
>> Thiago Jung Bauermann writes:
>>> + while (true) {
>>> cpu_status = smp_query_cpu_stopped(pcpu);
>>> if (cpu_status == QCSS_STOPPED ||
>>> cpu_status == Q
On Wed, 2019-05-01 at 09:29 +, Rasmus Villemoes wrote:
> CAUTION: This email originated from outside of the organization. Do not click
> links or open attachments unless you recognize the sender and know the
> content is safe.
>
>
> Reading table 4-30, and its footnotes, of the QUICC Engine
On 04/30, Sudeep Holla wrote:
>
> On Mon, Mar 18, 2019 at 04:33:22PM +0100, Oleg Nesterov wrote:
> >
> > And it seems that _TIF_WORK_SYSCALL_ENTRY needs some cleanups too... We
> > don't need
> > "& _TIF_WORK_SYSCALL_ENTRY" in syscall_trace_enter, and
> > _TIF_WORK_SYSCALL_ENTRY
> > should not in
> -Original Message-
> From: Michael Ellerman
> Sent: Wednesday, May 1, 2019 11:20 AM
> To: Vakul Garg
> Cc: linux-cry...@vger.kernel.org; Aymen Sghaier
> ; da...@davemloft.net;
> herb...@gondor.apana.org.au; Horia Geanta ;
> linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH] crypto:
On Wed, May 01, 2019 at 05:57:11PM +0200, Oleg Nesterov wrote:
> On 04/30, Sudeep Holla wrote:
> >
> > On Mon, Mar 18, 2019 at 04:33:22PM +0100, Oleg Nesterov wrote:
> > >
> > > And it seems that _TIF_WORK_SYSCALL_ENTRY needs some cleanups too... We
> > > don't need
> > > "& _TIF_WORK_SYSCALL_ENTR
Le 01/05/2019 à 02:55, Michael Ellerman a écrit :
Christophe Leroy writes:
Serge reported some crashes with CONFIG_STRICT_KERNEL_RWX enabled
on a book3s32 machine.
Analysis shows two issues:
- BATs addresses and sizes are not properly aligned.
- There is a gap between the last address cover
Hi all,
asm-generic/ptrace.h is a little weird in that it doesn't actually
implement any functionality, but it provided multiple layers of macros
that just implement trivial inline functions. We implement those
directly in the few architectures and be off with a much simpler
design.
Doing the indirection through macros for the regs accessors just
makes them harder to read, so implement the helpers directly.
Note that only the helpers actually used are implemented now.
Signed-off-by: Christoph Hellwig
---
arch/arm64/include/asm/ptrace.h | 31 +++
Doing the indirection through macros for the regs accessors just
makes them harder to read, so implement the helpers directly.
Note that only the helpers actually used are implemented now.
Signed-off-by: Christoph Hellwig
---
arch/powerpc/include/asm/ptrace.h | 29 ++---
Doing the indirection through macros for the regs accessors just
makes them harder to read, so implement the helpers directly.
Note that only the helpers actually used are implemented now.
Signed-off-by: Christoph Hellwig
---
arch/sh/include/asm/ptrace.h | 29 +
1 fi
Doing the indirection through macros for the regs accessors just
makes them harder to read, so implement the helpers directly.
Note that only the helpers actually used are implemented now.
Signed-off-by: Christoph Hellwig
---
arch/x86/include/asm/ptrace.h | 29 -
1 f
No one is using this helper anymore.
Signed-off-by: Christoph Hellwig
---
MAINTAINERS| 1 -
arch/mips/include/asm/ptrace.h | 5 ---
include/asm-generic/ptrace.h | 74 --
3 files changed, 80 deletions(-)
delete mode 100644 include/asm-gener
On 01/05/2019 17.12, Joakim Tjernlund wrote:
> On Wed, 2019-05-01 at 09:29 +, Rasmus Villemoes wrote:
>> CAUTION: This email originated from outside of the organization. Do not
>> click links or open attachments unless you recognize the sender and know the
>> content is safe.
>>
>>
>> Reading
On Fri, Apr 5, 2019 at 9:42 AM Roy Pledge wrote:
>
> This patch series adds support for QBMan memory backed portals which is
> avaialble in devices containing QBMan verion 5.0 and above (for example
> NXP's LX2160A SoC).
>
> Memory backed portals can be mapped as normal cacheable/shareable memory
On Sat, Apr 27, 2019 at 2:14 AM wrote:
>
> From: Laurentiu Tudor
>
> Add a couple of new APIs to check the probing status of the required
> cpu bound qman and bman portals:
> 'int bman_portals_probed()' and 'int qman_portals_probed()'.
> They return the following values.
> * 1 if qman/bman por
On Sat, Apr 27, 2019 at 2:14 AM wrote:
>
> From: Laurentiu Tudor
>
> ARM SoCs use SMMU so the liodn fixup done in the qman driver is no
> longer making sense and it also breaks the ICID settings inherited
> from u-boot. Do the fixups only for PPC targets.
>
> Signed-off-by: Laurentiu Tudor
Appl
On Wed, 1 May 2019 09:29:08 +, Rasmus Villemoes wrote:
> Reading table 4-30, and its footnotes, of the QUICC Engine Block
> Reference Manual shows that the set of snum _values_ is not
> necessarily just a function of the _number_ of snums, as given in the
> fsl,qe-num-snums property.
>
> As an
* Christoph Hellwig wrote:
> Doing the indirection through macros for the regs accessors just
> makes them harder to read, so implement the helpers directly.
>
> Note that only the helpers actually used are implemented now.
>
> Signed-off-by: Christoph Hellwig
> ---
> arch/x86/include/asm/p
Nathan Lynch's on May 2, 2019 12:57 am:
> Hi Thiago,
>
> Thiago Jung Bauermann writes:
>> Nathan Lynch writes:
>>> Thiago Jung Bauermann writes:
+ while (true) {
cpu_status = smp_query_cpu_stopped(pcpu);
if (cpu_status == QCSS_STOPPE
From: Tyrel Datwyler
Wire up the host_reset function in our driver_template to allow a user
requested adpater reset via the host_reset sysfs attribute.
Example:
echo "adapter" > /sys/class/scsi_host/host0/host_reset
Signed-off-by: Tyrel Datwyler
---
drivers/scsi/ibmvscsi/ibmvscsi.c | 13
From: Tyrel Datwyler
The current implemenation relies on two flags in the drivers private host
structure to signal the need for a host reset or to reenable the CRQ after a
LPAR migration. This patch does away with those flags and introduces a single
action flag and defined enums for the supported
From: Tyrel Datwyler
After a successful SRP login response we call scsi_unblock_requests() to
kick any pending IO's. The callback to process this SRP response happens in
a tasklet and therefore is in softirq context. The result of such is
that when blk-mq is enabled it is no longer safe to call
s
The patch
ASoC: fsl_esai: Fix missing break in switch statement
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hou
The patch
ASoC: fsl_audmix: cache pdev->dev pointer
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Lin
The patch
ASoC: mpc5200_psc_i2s: Fix invalid license ID
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to
The patch
ASoC: mpc5200_dma: Fix invalid license ID
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Lin
The patch
ASoC: fsl_micfil: Remove set but not used variable 'osr'
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours)
On Sun, Apr 28, 2019 at 02:24:54AM +, S.j. Wang wrote:
> Add pm runtime support and move clock handling there.
> Close the clocks at suspend to reduce the power consumption.
>
> fsl_esai_suspend is replaced by pm_runtime_force_suspend.
> fsl_esai_resume is replaced by pm_runtime_force_resume.
Christoph Hellwig writes:
> Doing the indirection through macros for the regs accessors just
> makes them harder to read, so implement the helpers directly.
>
> Note that only the helpers actually used are implemented now.
>
> Signed-off-by: Christoph Hellwig
> ---
> arch/powerpc/include/asm/pt
Mark,
I wonder if you are going to take this patch.
Thanks
--
Gustavo
On 4/11/19 3:43 AM, S.j. Wang wrote:
> case ESAI_HCKT_EXTAL and case ESAI_HCKR_EXTAL should be
> independent of each other, so replace fall-through with break.
>
> Fixes: 43d24e76b698 ("ASoC: fsl_esai: Add ESAI CPU DAI driver
Le 01/05/2019 à 11:29, Rasmus Villemoes a écrit :
The current array of struct qe_snum use 256*4 bytes for just keeping
track of the free/used state of each index, and the struct layout
means there's another 768 bytes of padding. If we just unzip that
structure, the array of snum values just us
Le 01/05/2019 à 11:29, Rasmus Villemoes a écrit :
Add driver support for the newly introduced fsl,qe-snums property.
Conveniently, of_property_read_variable_u8_array does exactly what we
need: If the property fsl,qe-snums is found (and has an allowed size),
the array of values get copied to s
Le 01/05/2019 à 11:29, Rasmus Villemoes a écrit :
The comment "No QE ever has fewer than 28 SNUMs" is false; e.g. the
MPC8309 has 14. The code path returning -EINVAL is also a recipe for
instant disaster, since the caller (qe_snums_init) uncritically
assigns the return value to the unsigned qe
Vakul Garg writes:
>> -Original Message-
>> From: Michael Ellerman
>> Sent: Wednesday, May 1, 2019 11:20 AM
>> To: Vakul Garg
>> Cc: linux-cry...@vger.kernel.org; Aymen Sghaier
>> ; da...@davemloft.net;
>> herb...@gondor.apana.org.au; Horia Geanta ;
>> linuxppc-dev@lists.ozlabs.org
>> Su
"Reconciling" in terms of interrupt handling, is to bring the soft irq
mask state in to synch with the hardware, after an interrupt causes
MSR[EE] to be cleared (while the soft mask may be enabled, and hard
irqs not marked disabled).
General kernel code should not be called while unreconciled, bec
This implements the tricky tracing and soft irq handling bits in C,
leaving the low level bit to asm.
A functional difference is that this redirects the interrupt exit to
a return stub to execute blr, rather than the lr address itself. This
is probably irrelevant or barely measurable on real hardw
Le 01/05/2019 à 09:04, Russell Currey a écrit :
On Wed, 2019-04-24 at 09:14 +0200, Christophe Leroy wrote:
Le 24/04/2019 à 08:39, Russell Currey a écrit :
Implement code to walk all pages and warn if any are found to be
both
writable and executable. Depends on STRICT_KERNEL_RWX enabled, an
> > > > + if (radix_enabled())
> > > > + st.start_address = PAGE_OFFSET;
> > > > + else
> > > + st.start_address = KERN_VIRT_START;
> > >
> > > KERN_VIRT_START doesn't exist on PPC32.
> > >
> > > Christophe
> > >
> > Thanks a lot for the review! Applied all you
On Thu, Apr 25, 2019 at 4:20 PM Pingfan Liu wrote:
>
> On Wed, Apr 24, 2019 at 4:31 PM Matthias Brugger wrote:
> >
> >
> [...]
> > > @@ -139,6 +141,8 @@ static int __init parse_crashkernel_simple(char
> > > *cmdline,
> > > pr_warn("crashkernel: unrecognized char: %c\n", *cur);
> >
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