On 20-09-22, 16:23, Sean Anderson wrote:
> This adds support for the Lynx 10G "SerDes" devices found on various NXP
> QorIQ SoCs. There may be up to four SerDes devices on each SoC, each
> supporting up to eight lanes. Protocol support for each SerDes is highly
> heterogeneous, with each SoC typica
On Sat Sep 24, 2022 at 8:15 AM AEST, Segher Boessenkool wrote:
> On Sat, Sep 24, 2022 at 02:26:52AM +1000, Nicholas Piggin wrote:
> > I still don't see what clauses guarantees asm("%0" ::"r"(foo)) to give
> > 13. It doesn't say access via inline assembly is special,
>
> But it is. It is for all re
Haren Myneni writes:
> On Thu, 2022-09-22 at 07:14 -0500, Nathan Lynch wrote:
>> Haren Myneni writes:
>> > When the migration is initiated, the hypervisor changes VAS
>> > mappings as part of pre-migration event. Then the OS gets the
>> > migration event which closes all VAS windows before the mi
On Sat, Sep 24, 2022 at 02:26:52AM +1000, Nicholas Piggin wrote:
> I still don't see what clauses guarantees asm("%0" ::"r"(foo)) to give
> 13. It doesn't say access via inline assembly is special,
But it is. It is for all register variables, local and global. I agree
this isn't documented clear
tree/branch:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
branch HEAD: aaa11ce2ffc84166d11c4d2ac88c3fcf75425fbd Add linux-next specific
files for 20220923
Error/Warning reports:
https://lore.kernel.org/linux-doc/202209231933.vcyettul-...@intel.com
https
Hello,
On Fri, Sep 23, 2022 at 03:03:36PM -0400, Mimi Zohar wrote:
> On Fri, 2022-09-23 at 19:10 +0200, Michal Suchanek wrote:
> > Hello,
> >
> > this is backport of commit 0d519cadf751
> > ("arm64: kexec_file: use more system keyrings to verify kernel image
> > signature")
> > to table 5.15 tre
On Fri, 2022-09-23 at 19:10 +0200, Michal Suchanek wrote:
> Hello,
>
> this is backport of commit 0d519cadf751
> ("arm64: kexec_file: use more system keyrings to verify kernel image
> signature")
> to table 5.15 tree including the preparatory patches.
>
> Some patches needed minor adjustment for
On Tue, 6 Sep 2022 14:49:21 +0800, Shengjiu Wang wrote:
> This reverts commit 944c517b8c838832a166f1c89afbf8724f4a6b49.
>
> There is error after making clock and output src write only
>
> $amixer -c imxaudmix cset numid=1 1
> amixer: Cannot read the given element from control sysdefault:3
>
> [.
On Fri, Sep 23, 2022 at 11:40 AM Nathan Lynch wrote:
> Michael Ellerman writes:
> > Paul Moore writes:
> >> On Thu, Sep 22, 2022 at 3:38 PM Nathan Lynch wrote:
> >>>
> >>> The error injection facility on pseries VMs allows corruption of
> >>> arbitrary guest memory, potentially enabling a suffi
From: "Naveen N. Rao"
commit 0738eceb6201691534df07e0928d0a6168a35787 upstream.
Drop __weak attribute from functions in kexec_core.c:
- machine_kexec_post_load()
- arch_kexec_protect_crashkres()
- arch_kexec_unprotect_crashkres()
- crash_free_reserved_phys_range()
Link:
https://lkml.kernel.org
From: "Naveen N. Rao"
commit 65d9a9a60fd71be964effb2e94747a6acb6e7015 upstream.
As requested
(http://lkml.kernel.org/r/87ee0q7b92@email.froward.int.ebiederm.org),
this series converts weak functions in kexec to use the #ifdef approach.
Quoting the 3e35142ef99fe ("kexec_file: drop weak attri
Hello,
this is backport of commit 0d519cadf751
("arm64: kexec_file: use more system keyrings to verify kernel image signature")
to table 5.15 tree including the preparatory patches.
Some patches needed minor adjustment for context.
Thanks
Michal
Coiby Xu (3):
kexec: clean up arch_kexec_kern
On Fri, 23 Sep 2022 17:03:55 +0800, Gaosheng Cui wrote:
> The imx_pcm_dma_params_init_data() are no longer used since
> commit c31da0b196f9 ("ASoC: imx-ssi: Remove unused driver"),
> and the function is used to initialize some members of
> "struct imx_dma_data", it's more readable to assign the val
Applied to powerpc/next.
Great. :)
Thanks, Michael.
--
Gustavo
Le 23/09/2022 à 17:41, Nicholas Piggin a écrit :
> WARN_ONCE and similar are often used in frequently executed code, and
> should not crash the system. The program check interrupt caused by
> WARN_ON_ONCE can be a significant overhead even when nothing is being
> printed. This can cause performan
On Fri Sep 23, 2022 at 10:18 PM AEST, Segher Boessenkool wrote:
> On Fri, Sep 23, 2022 at 05:08:13PM +1000, Nicholas Piggin wrote:
> > On Tue Sep 20, 2022 at 4:41 PM AEST, Christophe Leroy wrote:
> > > local_paca is declared as global register asm("r13"), it is therefore
> > > garantied to always e
Paul Moore writes:
>> diff --git a/include/linux/security.h b/include/linux/security.h
>> index 7bd0c490703d..1ca8dbacd3cc 100644
>> --- a/include/linux/security.h
>> +++ b/include/linux/security.h
>> @@ -122,6 +122,7 @@ enum lockdown_reason {
>> LOCKDOWN_XMON_WR,
>> LOCKDOWN_BPF_W
Le 23/09/2022 à 17:41, Nicholas Piggin a écrit :
> extable is used for handling user memory access faults from kernel mode,
> as such it is a fast-ish path. Using it in the very slow WARN path
> increases the number of extable entries from 1306 to 6516 in a
> ppc64le_defconfig vmlinux, increasing
WARN_ONCE and similar are often used in frequently executed code, and
should not crash the system. The program check interrupt caused by
WARN_ON_ONCE can be a significant overhead even when nothing is being
printed. This can cause performance to become unacceptable, having the
same effective impact
extable is used for handling user memory access faults from kernel mode,
as such it is a fast-ish path. Using it in the very slow WARN path
increases the number of extable entries from 1306 to 6516 in a
ppc64le_defconfig vmlinux, increasing the average number of search
steps by ~2.3.
This patch ad
Michael Ellerman writes:
> Paul Moore writes:
>> On Thu, Sep 22, 2022 at 3:38 PM Nathan Lynch wrote:
>>>
>>> The error injection facility on pseries VMs allows corruption of
>>> arbitrary guest memory, potentially enabling a sufficiently privileged
>>> user to disable lockdown or perform other m
On Tue, Sep 06, 2022 at 02:49:21PM +0800, Shengjiu Wang wrote:
> This reverts commit 944c517b8c838832a166f1c89afbf8724f4a6b49.
Please submit patches using subject lines reflecting the style for the
subsystem, this makes it easier for people to identify relevant patches.
Look at what existing commi
On Fri, Sep 23, 2022 at 05:17:45PM +1000, Nicholas Piggin wrote:
> On Thu Sep 22, 2022 at 4:50 AM AEST, Segher Boessenkool wrote:
> > On Wed, Sep 21, 2022 at 11:41:02AM +1000, Nicholas Piggin wrote:
> > > Big-endian GENERIC_CPU supports 970, but builds with -mcpu=power5.
> > > POWER5 is ISA v2.02 w
On Fri, Sep 23, 2022 at 05:08:13PM +1000, Nicholas Piggin wrote:
> On Tue Sep 20, 2022 at 4:41 PM AEST, Christophe Leroy wrote:
> > local_paca is declared as global register asm("r13"), it is therefore
> > garantied to always ever be r13.
> >
> > It is therefore not required to opencode r13 in the
On Tue, 6 Sep 2022 11:03:13 +1000, Michael Ellerman wrote:
> Currently in pas_pci_init() a reference to the root node is leaked due
> to a missing of_node_put(). Instead just use of_root directly.
>
> Note that converting to of_find_compatible_node(NULL, ...) would
> not be entirely equivalent, be
On Tue, 6 Sep 2022 14:17:03 +, Zheng Yongjun wrote:
> After using 'np' returned by of_find_node_by_path(), of_node_put()
> need be called to decrease the refcount.
>
>
Applied to powerpc/next.
[1/1] powerpc/powernv: add missing of_node_put() in opal_export_attrs()
https://git.kernel.o
On Thu, 1 Sep 2022 21:03:34 +1000, Nicholas Piggin wrote:
> Allow PTE changes to avoid flushing the TLB when access permissions are
> being relaxed, the dirty bit is being set, and the accessed bit is being
> changed.
>
> Relaxing access permissions and setting dirty and accessed bits do not
> req
On Tue, 6 Sep 2022 22:32:13 +0100, Gustavo A. R. Silva wrote:
> Fix the following fallthrough warning:
>
> arch/powerpc/platforms/85xx/mpc85xx_cds.c:161:3: warning: unannotated
> fall-through between switch labels [-Wimplicit-fallthrough]
>
>
Applied to powerpc/next.
[1/1] powerpc: Fix fall-t
On Wed, 7 Sep 2022 17:01:11 -0500, Nathan Lynch wrote:
> At the time this was submitted by Leonardo, I confirmed -- or thought
> I had confirmed -- with PowerVM partition firmware development that
> the following RTAS functions:
>
> - ibm,get-xive
> - ibm,int-off
> - ibm,int-on
> - ibm,set-xive
>
On Tue, 13 Sep 2022 15:50:20 +0800, Gaosheng Cui wrote:
> This series contains a few cleanup patches, to remove unused
> declarations which have been removed. Thanks!
>
> Gaosheng Cui (9):
> powerpc/xmon: remove unused ppc_parse_cpu() declaration
> powerpc/spufs: remove orphan declarations fro
And I think that "Do not crash" is a stronger statement than "Avoid crashing"
so I prefer the original suggestion but it's not a big deal either way.
Yes, stronger wording is better. So how about this:
"Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE()
plus recove
On 23.09.22 04:26, John Hubbard wrote:
On 9/20/22 05:23, David Hildenbrand wrote:
[1]
https://lkml.kernel.org/r/CAHk-=wiEAH+ojSpAgx_Ep=nkpwhu8ado3v56bxccsu97oyj...@mail.gmail.com
[2]
https://lore.kernel.org/r/CAHk-=wg40eazofo16eviaj7mfqdhz2gvebvfsmf6gyzsprj...@mail.gmail.com
[2]
https://lkml.
This reverts commit 944c517b8c838832a166f1c89afbf8724f4a6b49.
There is error after making clock and output src write only
$amixer -c imxaudmix cset numid=1 1
amixer: Cannot read the given element from control sysdefault:3
Which is worse than before, so let's revert the change.
Signed-off-by: Sh
From: Sascha Hauer
The driver uses two statically ininitialized struct dma_slave_config,
but only one of them is initialized to zero. Initialize config_be to
zero as well to make sure that no fields are filled with random values.
Let the compiler do this instead of explicitly calling memset() whi
On 23/09/2022 11:56, Chancel Liu wrote:
>>> Add a string property to assign the rpmsg channel this sound card sits
>>> on. It also represents the name of ASoC platform driver. This property
>>> can be omitted if there is only one sound card and it sits on
>>> "rpmsg-audio-channel".
>>>
>>> Signed-o
> > Add a string property to assign the rpmsg channel this sound card sits
> > on. It also represents the name of ASoC platform driver. This property
> > can be omitted if there is only one sound card and it sits on
> > "rpmsg-audio-channel".
> >
> > Signed-off-by: Chancel Liu
> > ---
> > .../dev
The Hardware Voice Activity Detector (HWVAD) is a block
responsible for detect voice activity in a channel selected
by the user. It can be configured in Envelope-based or
Energy-based mode.
There are additional two interrupts for HWVAD, one is event
interrupt, another is error interrupt.
Enable h
I found a null pointer reference in arch_prepare_kprobe():
# echo 'p cmdline_proc_show' > kprobe_events
# echo 'p cmdline_proc_show+16' >> kprobe_events
[ 67.278533][ T122] Kernel attempted to read user page (0) - exploit
attempt? (uid: 0)
[ 67.279326][ T122] BUG: Kernel NULL pointe
The imx_pcm_dma_params_init_data() are no longer used since
commit c31da0b196f9 ("ASoC: imx-ssi: Remove unused driver"),
and the function is used to initialize some members of
"struct imx_dma_data", it's more readable to assign the value
directly, imx_pcm_dma_params_init_data is useless, so remove
On Thu, 2022-09-22 at 07:14 -0500, Nathan Lynch wrote:
> Haren Myneni writes:
> > When the migration is initiated, the hypervisor changes VAS
> > mappings as part of pre-migration event. Then the OS gets the
> > migration event which closes all VAS windows before the migration
> > starts. NX gener
On Fri Sep 23, 2022 at 1:02 AM AEST, Laurent Dufour wrote:
> On 28/07/2022 08:31:19, Nicholas Piggin wrote:
> > Provide an option that holds off queueing indefinitely while the lock
> > owner is preempted. This could reduce queueing latencies for very
> > overcommitted vcpu situations.
> >
> > Thi
On Wed Sep 21, 2022 at 4:56 PM AEST, Rohan McLure wrote:
> Clear user state in gprs (assign to zero) to reduce the influence of user
> registers on speculation within kernel syscall handlers. Clears occur
> at the very beginning of the sc and scv 0 interrupt handlers, with
> restores occurring foll
On Wed Sep 21, 2022 at 4:56 PM AEST, Rohan McLure wrote:
> Implement syscall wrapper as per s390, x86, arm64. When enabled
> cause handlers to accept parameters from a stack frame rather than
> from user scratch register state. This allows for user registers to be
> safely cleared in order to reduc
On Wed Sep 21, 2022 at 4:56 PM AEST, Rohan McLure wrote:
> Change system_call_exception arguments to pass a pointer to a stack frame
> container caller state, as well as the original r0, which determines the
> number of the syscall. This has been observed to yield improved performance
> to passing
Hi Geert
Am 23.09.22 um 09:14 schrieb Geert Uytterhoeven:
Hi Thomas,
On Thu, Sep 22, 2022 at 1:33 PM Thomas Zimmermann wrote:
Open Firmware provides basic display output via the 'display' node.
DT platform code already provides a device that represents the node's
framebuffer. Add a DRM driver
On Wed Sep 21, 2022 at 4:55 PM AEST, Rohan McLure wrote:
> Remove explicit clearing of the high order-word of user parameters when
> handling compatibility syscalls in system_call_exception. The
> COMPAT_SYSCALL_DEFINEx macros handle this clearing through an
> explicit cast to the signature type of
Le 23/09/2022 à 09:32, Michael Ellerman a écrit :
> Christophe Leroy writes:
>> Le 19/09/2022 à 16:01, Nicholas Piggin a écrit :
>>> Using a 16-bit constant for this marker allows it to be loaded with
>>> a single 'li' instruction. On 64-bit this avoids a TOC entry and a
>>> TOC load that depend
Christophe Leroy writes:
> Le 19/09/2022 à 16:01, Nicholas Piggin a écrit :
>> Using a 16-bit constant for this marker allows it to be loaded with
>> a single 'li' instruction. On 64-bit this avoids a TOC entry and a
>> TOC load that depends on the r2 value that has just been loaded from
>> the PA
On Thu Sep 22, 2022 at 1:22 AM AEST, Segher Boessenkool wrote:
> Hi!
>
> On Wed, Sep 21, 2022 at 11:01:18AM +1000, Nicholas Piggin wrote:
> > On Wed Sep 21, 2022 at 8:16 AM AEST, Segher Boessenkool wrote:
> > > On Tue, Sep 20, 2022 at 12:01:47AM +1000, Nicholas Piggin wrote:
> > > > Update the 64s
Hi Thomas,
On Thu, Sep 22, 2022 at 1:33 PM Thomas Zimmermann wrote:
> Support the CRTC's color-management property and implement each model's
> palette support.
>
> The OF hardware has different methods of setting the palette. The
> respective code has been taken from fbdev's offb and refactored
On Thu Sep 22, 2022 at 4:50 AM AEST, Segher Boessenkool wrote:
> On Wed, Sep 21, 2022 at 11:41:02AM +1000, Nicholas Piggin wrote:
> > Big-endian GENERIC_CPU supports 970, but builds with -mcpu=power5.
> > POWER5 is ISA v2.02 whereas 970 is v2.01 plus Altivec. 2.02 added
> > the popcntb instruction
Hi Thomas,
On Thu, Sep 22, 2022 at 1:33 PM Thomas Zimmermann wrote:
> Open Firmware provides basic display output via the 'display' node.
> DT platform code already provides a device that represents the node's
> framebuffer. Add a DRM driver for the device. The display mode and
> color format is
Paul Moore writes:
> On Thu, Sep 22, 2022 at 3:38 PM Nathan Lynch wrote:
>>
>> The error injection facility on pseries VMs allows corruption of
>> arbitrary guest memory, potentially enabling a sufficiently privileged
>> user to disable lockdown or perform other modifications of the running
>> ke
On Tue Sep 20, 2022 at 4:41 PM AEST, Christophe Leroy wrote:
> local_paca is declared as global register asm("r13"), it is therefore
> garantied to always ever be r13.
>
> It is therefore not required to opencode r13 in the assembly, use
> a reference to local_paca->irq_soft_mask instead.
>
> This
Paul Moore writes:
> On Thu, Sep 22, 2022 at 3:38 PM Nathan Lynch wrote:
>>
>> The /proc/powerpc/ofdt interface allows the root user to freely alter
>> the in-kernel device tree, enabling arbitrary physical address writes
>> via drivers that could bind to malicious device nodes, thus making it
>>
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