This is a regression introduced by the patch "migrate from ll_rw_block
usage to BIO".
Sysbot/Syskaller has reported a number of "out of bounds writes" and
"unable to handle kernel paging request in squashfs_decompress" errors
which have been identified as a regression introduced by the above
> > >"If the requested field of the HPB Region or HPB Sub-Region is out
> > > of
> > > range, then the device shall terminate the command by sending
> > > RESPONSE
> > > UPIU with CHECK CONDITION status, with the SENSE KEY set to ILLEGAL
> > > REQUEST, and the additional sense code set to INVALID
> +
> > +static void ufshpb_kick_map_work(struct ufshpb_lu *hpb)
> > +{
> > +bool ret = true;
>
> -> ret = false;
>
> > +unsigned long flags;
> > +
> > +spin_lock_irqsave(>rsp_list_lock, flags);
> > +if (!list_empty(>lh_inact_rgn) ||
> >
Hi all,
Patch [1/4] fixes a regression introduced by the "migrate from ll_rw_block
usage to BIO" patch, which has produced a number of Sysbot/Syzkaller reports.
Patches [2/4], [3/4], and [4/4] fix a number of filesystem corruption
issues which have produced Sysbot reports in the id, inode and
ThinkPad L13 Gen2 has both touchpad and trackpoint.
PNP: LEN2146 PNP0f13
With the default protocol (elantech-smbus) trackpoint is not operating,
while touchpad does. Changing to elantech renders both operational.
Signed-off-by: Nikolai Kostrigin
---
drivers/input/mouse/elantech.c | 1 +
1 file
Hi Randy,
On Fri, Feb 05, 2021 at 04:56:47PM -0800, Randy Dunlap wrote:
> On 2/5/21 5:25 AM, Sakari Ailus wrote:
> > Document the use of the _DSE object for setting desirable power state
> > during probe.
> >
> > Signed-off-by: Sakari Ailus
> > Reviewed-by: Tomasz Figa
> > ---
> >
Add two new kdb environment access methods as kdb_setenv() and
kdb_printenv() in order to abstract out environment access code
from kdb command functions.
Also, replace (char *)0 with NULL as an initializer for environment
variables array.
Signed-off-by: Sumit Garg
Reviewed-by: Douglas Anderson
Hi Daniel,
On Fri, 5 Feb 2021 at 23:06, Daniel Thompson wrote:
>
> On Thu, Feb 04, 2021 at 03:44:20PM +0530, Sumit Garg wrote:
> > @@ -318,6 +318,65 @@ int kdbgetintenv(const char *match, int *value)
> > }
> >
> > /*
> > + * kdb_setenv() - Alter an existing environment variable or create a new
Hi Rob,
On Fri, 2021-02-05 at 16:35 -0600, Rob Herring wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you
> know the content is safe
>
> On Wed, Jan 20, 2021 at 09:19:21AM +0100, Steen Hegelund wrote:
> > This provides reset driver support for the Microchip Sparx5 PCB134
On Sun, 7 Feb 2021, Xiaofei Tan wrote:
> Replace spin_lock_irqsave with spin_lock in hard IRQ of SCSI drivers.
> There are no function changes, but may speed up if interrupt happen too
> often.
This change doesn't necessarily work on platforms that support nested
interrupts.
Were you able to
> @@ -342,13 +1208,14 @@ void ufshpb_suspend(struct ufs_hba *hba)
> > struct scsi_device *sdev;
> >
> > shost_for_each_device(sdev, hba->host) {
> > - hpb = sdev->hostdata;
> > + hpb = ufshpb_get_hpb_data(sdev);
> > if (!hpb)
> >
From: Stefan Chulski
This patch adds RXQ flow control configurations.
Flow control disabled by default.
Minimum ring size limited to 1024 descriptors.
Signed-off-by: Stefan Chulski
---
drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 35 +-
From: Stefan Chulski
The firmware needs to monitor the RX Non-occupied descriptor
bits for flow control to move to XOFF mode.
These bits need to be unmasked to be functional, but they will
not raise interrupts as we leave the RX exception summary
bit in MVPP2_ISR_RX_TX_MASK_REG clear.
From: Stefan Chulski
Flow Control periodic timer would be used if port in
XOFF to transmit periodic XOFF frames.
Signed-off-by: Stefan Chulski
---
drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 13 ++
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 45
2 files
On 2021-02-08 16:03, Daejun Park wrote:
@@ -342,13 +1208,14 @@ void ufshpb_suspend(struct ufs_hba *hba)
>struct scsi_device *sdev;
>
>shost_for_each_device(sdev, hba->host) {
> - hpb = sdev->hostdata;
> + hpb = ufshpb_get_hpb_data(sdev);
>if (!hpb)
>
From: Stefan Chulski
This patch enables global flow control in FW and in the phylink validate mask.
Signed-off-by: Stefan Chulski
---
drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 11 +--
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 30 +++-
2 files changed, 37
From: Mike Rapoport
The definition of PMD_PAGE_ORDER denoting the number of base pages in the
second-level leaf page is already used by DAX and maybe handy in other
cases as well.
Several architectures already have definition of PMD_ORDER as the size of
second level page table, so to avoid
From: Mike Rapoport
Hi,
@Andrew, this is based on v5.11-rc5-mmotm-2021-01-27-23-30, with secretmem
and related patches dropped from there, I can rebase whatever way you
prefer.
This is an implementation of "secret" mappings backed by a file descriptor.
The file descriptor backing secret
Hi Mauro,
On Mon, Feb 8, 2021 at 9:49 AM Mauro Carvalho Chehab wrote:
> Em Mon, 8 Feb 2021 09:33:14 +0100
> Geert Uytterhoeven escreveu:
> > On Mon, Feb 8, 2021 at 7:35 AM Mauro Carvalho Chehab
> > wrote:
> > > Em Mon, 8 Feb 2021 11:32:08 +1100
> > > Stephen Rothwell escreveu:
> > >
> > > >
On 2/8/21 10:21 AM, nicolas.fe...@microchip.com wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> content is safe
>
> From: Nicolas Ferre
>
> Add Quad SPI driver to the sama5 defconfig. This driver is needed for
> sama5d2 SoC.
>
> Signed-off-by: Nicolas
>>> @@ -342,13 +1208,14 @@ void ufshpb_suspend(struct ufs_hba *hba)
>>> > struct scsi_device *sdev;
>>> >
>>> > shost_for_each_device(sdev, hba->host) {
>>> > -hpb = sdev->hostdata;
>>> > +hpb = ufshpb_get_hpb_data(sdev);
>>> > if
Every HugeTLB has more than one struct page structure. We __know__ that
we only use the first 4(HUGETLB_CGROUP_MIN_ORDER) struct page structures
to store metadata associated with each HugeTLB.
There are a lot of struct page structures associated with each HugeTLB
page. For tail pages, the value
When we free a HugeTLB page to the buddy allocator, we should allocate the
vmemmap pages associated with it. But we may cannot allocate vmemmap pages
when the system is under memory pressure, in this case, we just refuse to
free the HugeTLB page instead of looping forever trying to allocate the
There is no need to use API with _irqsave in hard IRQ handler, So replace
those with spin_lock.
Luo Jiaxing (2):
gpio: omap: Replace raw_spin_lock_irqsave with raw_spin_lock in
omap_gpio_irq_handler()
gpio: grgpio: Replace spin_lock_irqsave with spin_lock in
grgpio_irq_handler()
On 2021-02-08, Sergey Senozhatsky wrote:
> Can we please also ask the kernel test robot to test this patch?
LKP is an automated service. The problem was reported for an older
commit. The new patch will not apply.
I will try to contact the LKP team and see how we can get some sort of
On 2/6/21 11:17 AM, Krzysztof Kozlowski wrote:
Correct kerneldoc to fix W=1 warnings:
drivers/memory/samsung/exynos5422-dmc.c:290: warning:
expecting prototype for find_target_freq_id(). Prototype was for
find_target_freq_idx() instead
On Wed, Feb 03, 2021 at 09:56:28AM +, Russell King - ARM Linux admin wrote:
> On Wed, Feb 03, 2021 at 10:18:55AM +0100, Oleksij Rempel wrote:
> > This fixup removes the Lpi_en bit.
> >
> > If this patch breaks functionality of your board, use following device
> > tree properties:
> >
> >
Hi,
On 31/01/2021 10:57, Mykyta Poturai wrote:
> Add the "disable-hpd" binding, used to disable hotplug detected
> functionality in the driver. When it's enabled the driver assumes that
> the connector is always connected and disables the hotplug detect
> related IRQ.
DT describes the hardware,
On 2021-02-08 08:16, Lukas Bulwahn wrote:
Commit 8bcac4011ebe ("soc: bcm: add PM driver for Broadcom's PMB")
includes
a new MAINTAINERS section BROADCOM PMB (POWER MANAGEMENT BUS) DRIVER
with
'drivers/soc/bcm/bcm-pmb.c', but the file was actually added at
'drivers/soc/bcm/bcm63xx/bcm-pmb.c'.
Fix the following coccicheck warning:
./drivers/media/platform/ti-vpe/vpdma.c:946:5-26: WARNING: Comparison to
bool.
Reported-by: Abaci Robot
Signed-off-by: Jiapeng Chong
---
drivers/media/platform/ti-vpe/vpdma.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git
In order to be able to disable BTI at runtime, whether it is
for testing purposes, or to work around HW issues, let's add
support for overriding the ID_AA64PFR1_EL1.BTI field.
This is further mapped on the arm64.nobti command-line alias.
Signed-off-by: Marc Zyngier
Reviewed-by: Catalin Marinas
__read_sysreg_by_encoding() is used by a bunch of cpufeature helpers,
which should take the feature override into account. Let's do that.
For a good measure (and because we are likely to need to further
down the line), make this helper available to the rest of the
non-modular kernel.
Code that
On 08.02.21 11:23, Andrew Cooper wrote:
On 08/02/2021 09:50, Jan Beulich wrote:
On 08.02.2021 10:44, Andrew Cooper wrote:
On 06/02/2021 10:49, Juergen Gross wrote:
The ring buffer for user events is used in the local system only, so
smp barriers are fine for ensuring consistency.
On 07/02/21 16:42, Jing Liu wrote:
|In KVM, "guest_fpu" serves for any guest task working on this vcpu
during vmexit and vmenter. We provide a pre-allocated guest_fpu space
and entire "guest_fpu.state_mask" to avoid each dynamic features
detection on each vcpu task. Meanwhile, to ensure
Since syzkaller continues various test cases until the kernel crashes,
syzkaller tends to examine more locking dependencies than normal systems.
As a result, syzbot is reporting that the fuzz testing was terminated
due to hitting upper limits lockdep can track [1] [2] [3]. Since analysis
via
Hi Arend,
On 1/19/21 11:03 AM, Alvin Šipraga wrote:
> Hi,
>
> On 1/19/21 9:30 AM, Arend Van Spriel wrote:
>> On 1/15/2021 3:57 PM, Alvin Šipraga wrote:
>>> Hi Arend,
>>>
>>> On 1/15/21 3:10 PM, Arend Van Spriel wrote:
+ Johannes
- netdevs
On 1/14/2021 5:36 PM, 'Alvin Šipraga'
Hi,
I promised to Mike to have a look into this a few weeks ago.
This is my first attempt.
I carried out some tests with a module that tries to allocate with
alloc_contig_range() from a range where we have free and in-use hugetlb
pages.
So far I did not spot any problem and it worked.
Please,
alloc_contig_range is not prepared to handle hugetlb pages and will
fail if it ever sees one, but since they can be migrated as any other
page (LRU and Movable), it makes sense to also handle them.
For now, do it only when coming from alloc_contig_range.
Signed-off-by: Oscar Salvador
---
On 08.02.2021 11:23, Andrew Cooper wrote:
> On 08/02/2021 09:50, Jan Beulich wrote:
>> On 08.02.2021 10:44, Andrew Cooper wrote:
>>> On 06/02/2021 10:49, Juergen Gross wrote:
The ring buffer for user events is used in the local system only, so
smp barriers are fine for ensuring
On 2021/2/6 4:08, Bjorn Helgaas wrote:
> On Fri, Feb 05, 2021 at 10:28:32AM -0800, Guenter Roeck wrote:
>> On Fri, Feb 05, 2021 at 05:44:13PM +0800, Yicong Yang wrote:
>>> From: Junhao He
>>>
>>> Use subdir-ccflags-* instead of ccflags-* to inherit the debug
>>> settings from Kconfig when
On 08.02.2021 11:41, Jürgen Groß wrote:
> On 08.02.21 10:48, Jan Beulich wrote:
>> On 06.02.2021 11:49, Juergen Gross wrote:
>>> In evtchn_read() use READ_ONCE() for reading the producer index in
>>> order to avoid the compiler generating multiple accesses.
>>>
>>> Signed-off-by: Juergen Gross
On Mon 08-02-21 11:32:11, David Hildenbrand wrote:
> On 08.02.21 11:18, Michal Hocko wrote:
> > On Mon 08-02-21 10:49:18, Mike Rapoport wrote:
> > > From: Mike Rapoport
> > >
> > > It is unsafe to allow saving of secretmem areas to the hibernation
> > > snapshot as they would be visible after
The current memory_failure_dev_pagemap() can only handle single-mapped
dax page for fsdax mode. The dax page could be mapped by multiple files
and offsets if we let reflink feature & fsdax mode work together. So,
we refactor current implementation to support handle memory failure on
each file
On Fri, Feb 05, 2021 at 05:39:51AM +0900, Hector Martin wrote:
> This currently supports:
>
> * SMP (via spin-tables)
> * AIC IRQs
> * Serial (with earlycon)
> * Framebuffer
>
> A number of properties are dynamic, and based on system firmware
> decisions that vary from version to version. These
Call the ->memory_failure() which is implemented by pmem driver, in
order to finally notify filesystem to handle the corrupted data. The
handler which collects and kills processes are moved into
mf_dax_mapping_kill_procs(), which will be called by filesystem.
Keep the old handler in order to
As is show in the call tree:
...
pgmap->ops->memory_failure()
gendisk->fops->corrupted_range()
sb->s_ops->currupted_range()
...
currupted_range() is called from disk(pmem) to superblock(filesystem).
Thus, we need to introduce a helper function to obtain the superblock
from a given disk.
On Fri, Feb 05, 2021 at 06:34PM +0100, Andrey Konovalov wrote:
> Mark all static functions in common.c and kasan.h that are used for
> hardware tag-based KASAN as inline to avoid unnecessary function calls.
>
> Signed-off-by: Andrey Konovalov
Reviewed-by: Marco Elver
> ---
>
In fsdax mode, the memory failure happens on block device. So, it is
needed to introduce an interface for block devices. Each kind of block
device can handle the memory failure in ther own ways.
Signed-off-by: Shiyang Ruan
---
include/linux/blkdev.h | 2 ++
1 file changed, 2 insertions(+)
Pmem device could be a target of mapped device. In order to obtain
superblock on the mapped device, we introduce this to translate offset
from target device to md device.
Currently, we implement it on linear target, which is easy to do the
translation. Other targets will be supported in the
On Fri, Feb 05, 2021 at 03:46:17PM +0300, Dan Carpenter wrote:
> drivers/iommu/mtk_iommu.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Applied, thanks.
On Mon, Feb 08, 2021 at 02:35:25PM +0800, Yong Wu wrote:
> On Mon, 2021-02-08 at 07:10 +0100, Lukas Bulwahn wrote:
> > Commit 6af4873852c4 ("MAINTAINERS: Add entry for MediaTek IOMMU") mentions
> > the pattern 'drivers/iommu/mtk-iommu*', but the files are actually named
> > with an underscore, not
This log message should be a debug message, because it
doesn't return directly but continue next loop.
Signed-off-by: Shengjiu Wang
---
sound/soc/soc-pcm.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index
We can use helper huge_page_size() to get the hugepage size directly to
simplify the code slightly.
Signed-off-by: Miaohe Lin
---
mm/hugetlb.c | 14 ++
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 18628f8dbfb0..6cdb59d8f663 100644
On Mon, Feb 8, 2021 at 3:00 AM Dave Chinner wrote:
>
> On Wed, Feb 03, 2021 at 04:03:06PM +0100, Miklos Szeredi wrote:
> > On Wed, Feb 3, 2021 at 3:56 PM Matthew Wilcox wrote:
> >
> > > But let's talk specifics. What does CIFS need to contact the server for?
> > > Could it be cached earlier?
>
From: Stefan Chulski
This patch fix GMAC TX flow control autoneg.
Flow control autoneg wrongly were disabled with enabled TX
flow control.
Signed-off-by: Stefan Chulski
---
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
From: Stefan Chulski
This patch add ethtool flow control configuration support.
Tx flow control retrieved correctly by ethtool get function.
FW per port ethtool configuration capability added.
Patch also takes care about mtu change procedure, if PPv2 switch
BM pools during mtu change.
PageHead(page) is implicitly checked in set_page_huge_active() via the
PageHeadHuge(page) check. So remove this explicit one.
Signed-off-by: Miaohe Lin
---
mm/hugetlb.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 6cdb59d8f663..bbbe013a3a2d 100644
---
Hi Saravana,
On 05.02.2021 23:26, Saravana Kannan wrote:
> There are a lot of devices/drivers where they never have a struct device
> created for them or the driver initializes the hardware without ever
> binding to the struct device.
>
> This series is intended to avoid any boot regressions due
From: Mike Rapoport
It is unsafe to allow saving of secretmem areas to the hibernation
snapshot as they would be visible after the resume and this essentially
will defeat the purpose of secret memory mappings.
Prevent hibernation whenever there are active secret memory users.
Signed-off-by:
From: Mike Rapoport
Wire up memfd_secret system call on architectures that define
ARCH_HAS_SET_DIRECT_MAP, namely arm64, risc-v and x86.
Signed-off-by: Mike Rapoport
Acked-by: Palmer Dabbelt
Acked-by: Arnd Bergmann
Acked-by: Catalin Marinas
Cc: Alexander Viro
Cc: Andy Lutomirski
Cc:
Move bootmem info registration common API to individual bootmem_info.c.
And we will use {get,put}_page_bootmem() to initialize the page for the
vmemmap pages or free the vmemmap pages to buddy in the later patch.
So move them out of CONFIG_MEMORY_HOTPLUG_SPARSE. This is just code
movement without
From: Mike Rapoport
The test verifies that file descriptor created with memfd_secret does not
allow read/write operations, that secret memory mappings respect
RLIMIT_MEMLOCK and that remote accesses with process_vm_read() and
ptrace() to the secret memory fail.
Signed-off-by: Mike Rapoport
Cc:
The option HUGETLB_PAGE_FREE_VMEMMAP allows for the freeing of
some vmemmap pages associated with pre-allocated HugeTLB pages.
For example, on X86_64 6 vmemmap pages of size 4KB each can be
saved for each 2MB HugeTLB page. 4094 vmemmap pages of size 4KB
each can be saved for each 1GB HugeTLB page.
From: Mike Rapoport
Introduce "memfd_secret" system call with the ability to create memory
areas visible only in the context of the owning process and not mapped not
only to other processes but in the kernel page tables as well.
The secretmem feature is off by default and the user must
For HugeTLB page, there are more metadata to save in the struct page.
But the head struct page cannot meet our needs, so we have to abuse
other tail struct page to store the metadata. In order to avoid
conflicts caused by subsequent use of more tail struct pages, we can
gather these discrete
All the infrastructure is ready, so we introduce nr_free_vmemmap_pages
field in the hstate to indicate how many vmemmap pages associated with
a HugeTLB page that can be freed to buddy allocator. And initialize it
in the hugetlb_vmemmap_init(). This patch is actual enablement of the
feature.
There is no need to use API with _irqsave in hard IRQ handler, So replace
those with spin_lock.
Luo Jiaxing (2):
gpio: omap: Replace raw_spin_lock_irqsave with raw_spin_lock in
omap_gpio_irq_handler()
gpio: grgpio: Replace spin_lock_irqsave with spin_lock in
grgpio_irq_handler()
There is no need to use API with _irqsave in omap_gpio_irq_handler(),
because it already be in a irq-disabled context.
Signed-off-by: Luo Jiaxing
---
drivers/gpio/gpio-omap.c | 15 ++-
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpio/gpio-omap.c
There is no need to use API with _irqsave in grgpio_irq_handler(),
because it already be in a irq-disabled context.
Signed-off-by: Luo Jiaxing
---
drivers/gpio/gpio-grgpio.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpio-grgpio.c
Two index spaces and ep93xx_gpio_port are confusing.
Instead add a separate struct to store necessary data and remove
ep93xx_gpio_port.
- add struct to store IRQ related data for each IRQ capable chip
- replace offset array with defined offsets
- add IRQ registers offset for each IRQ capable
There is no need to use API with _irqsave in omap_gpio_irq_handler(),
because it already be in a irq-disabled context.
Signed-off-by: Luo Jiaxing
---
drivers/gpio/gpio-omap.c | 15 ++-
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/gpio/gpio-omap.c
On 2021/2/8 下午2:37, Eli Cohen wrote:
On Mon, Feb 08, 2021 at 12:27:18PM +0800, Jason Wang wrote:
On 2021/2/6 上午7:07, Si-Wei Liu wrote:
On 2/3/2021 11:36 PM, Eli Cohen wrote:
When a change of memory map occurs, the hardware resources are destroyed
and then re-created again with the new
From: Peng Fan
Add i.MX8MQ/M support, also include mailbox for rpmsg/virtio usage.
Signed-off-by: Peng Fan
---
.../bindings/remoteproc/fsl,imx-rproc.yaml| 51 ++-
1 file changed, 50 insertions(+), 1 deletion(-)
diff --git
From: Peng Fan
Convert the imx rproc binding to DT schema format using json-schema.
Signed-off-by: Peng Fan
---
.../bindings/remoteproc/fsl,imx-rproc.yaml| 59 +++
.../bindings/remoteproc/imx-rproc.txt | 33 ---
2 files changed, 59 insertions(+), 33
From: Peng Fan
V10:
Per Rob's comments, fix patch 1/10
V9:
Per Mathieu's comments,
update the tile of yaml in patch 2/10
update the Kconfig and MODULE_DESCRIPTION, I merge this change in patch 8/10,
since this is a minor change, I still keep Mathieu's R-b tag. If any
objection, I
On Mon, Feb 8, 2021 at 7:34:8, Leon Romanovsky wrote:
> On Tue, Feb 02, 2021 at 05:56:36PM +0100, Gustavo Pimentel wrote:
> > Add Synopsys DesignWare xData IP driver to Kconfig.
> >
> > This driver enables/disables the PCIe traffic generator module
> > pertain to the Synopsys DesignWare
1. Move curve ID from the key into the algorithm name (like 'ecdh-nist-pxxx'
so we get its tfm like 'crypto_alloc_kpp("ecdh-nist-p256", 0, 0)'),
in 'crypto/ecc.c' (has been verified by testmgr) and 'crypto/atmel-ecc.c'
(only compiled, not do test), and modify 'testmgr.c' and
Enable 'CURVE25519' algorithm in Kunpeng 930.
Signed-off-by: Meng Yu
Reviewed-by: Zaibo Xu
---
drivers/crypto/hisilicon/Kconfig| 1 +
drivers/crypto/hisilicon/hpre/hpre.h| 2 +
drivers/crypto/hisilicon/hpre/hpre_crypto.c | 366 +++-
3 files
On 08.02.21 10:38, Jan Beulich wrote:
On 06.02.2021 11:49, Juergen Gross wrote:
The ring buffer for user events is used in the local system only, so
smp barriers are fine for ensuring consistency.
Reported-by: Andrew Cooper
Signed-off-by: Juergen Gross
Reviewed-by: Jan Beulich
Albeit I
Fix the following coccicheck warning:
./tools/bpf/bpf_dbg.c:893:32-36: WARNING: Comparison to bool.
Reported-by: Abaci Robot
Signed-off-by: Jiapeng Chong
---
tools/bpf/bpf_dbg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/bpf/bpf_dbg.c b/tools/bpf/bpf_dbg.c
index
On Fri, Jan 29, 2021 at 03:47:07PM +0530, Sumit Garg wrote:
> @@ -1011,25 +1005,17 @@ int kdb_parse(const char *cmdstr)
> ++argv[0];
> }
>
> - for_each_kdbcmd(tp, i) {
> - if (tp->cmd_name) {
> - /*
> - * If this
1. Move curve id of ECDH from the key into the algorithm name instead in
crypto;
2. Modify 'testmgr.c' and 'testmgr.h' to adapt the modification.
Signed-off-by: Meng Yu
Reviewed-by: Zaibo Xu
---
crypto/ecdh.c | 72 +++
It recently came to light that there is a need to be able to override
some CPU features very early on, before the kernel is fully up and
running. The reasons for this range from specific feature support
(such as using Protected KVM on VHE HW, which is the main motivation
for this work) to errata
If someone happens to write the following code:
b 1f
init_el2_state vhe
1:
[...]
they will be in for a long debugging session, as the label "1f"
will be resolved *inside* the init_el2_state macro instead of
after it. Not really what one expects.
Instead, rewite
In order to map the override of idregs to options that a user
can easily understand, let's introduce yet another option
array, which maps an option to the corresponding idreg options.
Signed-off-by: Marc Zyngier
Reviewed-by: Catalin Marinas
Acked-by: David Brazdil
---
As we want to be able to disable VHE at runtime, let's match
"id_aa64mmfr1.vh=" from the command line as an override.
This doesn't have much effect yet as our boot code doesn't look
at the cpufeature, but only at the HW registers.
Signed-off-by: Marc Zyngier
Acked-by: David Brazdil
Acked-by:
From: Srinivas Ramana
Defer enabling pointer authentication on boot core until
after its required to be enabled by cpufeature framework.
This will help in controlling the feature dynamically
with a boot parameter.
Signed-off-by: Ajay Patil
Signed-off-by: Prasad Sodagudi
Signed-off-by:
Given that the early cpufeature infrastructure has borrowed quite
a lot of code from the kaslr implementation, let's reimplement
the matching of the "nokaslr" option with it.
Signed-off-by: Marc Zyngier
Acked-by: Catalin Marinas
Acked-by: David Brazdil
---
arch/arm64/kernel/idreg-override.c |
On 2021-02-06 10:49, Juergen Gross wrote:
> An event channel should be kept masked when an eoi is pending for it.
> When being migrated to another cpu it might be unmasked, though.
>
> In order to avoid this keep two different flags for each event channel
> to be able to distinguish "normal"
Hi, George,
On 2/7/21 2:30 PM, George Brooke wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> content is safe
>
> Adds support for the Boya Microelectronics BY25Q128AS 128 Mbit flash.
> I tested this on the Creality WB-01 embedded device which uses this,
>
On Mon, Feb 08, 2021 at 11:16:41AM +0100, Andrew Jones wrote:
> > diff --git a/tools/testing/selftests/kvm/lib/rbtree.c
> > b/tools/testing/selftests/kvm/lib/rbtree.c
> > new file mode 100644
> > index ..a703f0194ea3
> > --- /dev/null
> > +++ b/tools/testing/selftests/kvm/lib/rbtree.c
Free hugetlb pages are trickier to handle as to in order to guarantee
no userspace appplication disruption, we need to replace the
current free hugepage with a new one.
In order to do that, a new function called alloc_and_dissolve_huge_page
in introduced.
This function will first try to get a new
On 08.02.21 11:13, Song Bao Hua (Barry Song) wrote:
-Original Message-
From: owner-linux...@kvack.org [mailto:owner-linux...@kvack.org] On Behalf Of
David Hildenbrand
Sent: Monday, February 8, 2021 9:22 PM
To: Song Bao Hua (Barry Song) ; Matthew Wilcox
Cc: Wangzhou (B) ;
Emil Renner Berthing wrote:
> In commit d3ccc14dfe95 most of the tasklets in this driver was
> updated to the new API. However for the rx_work_tasklet only the
> type of the callback was changed from
> void _rtl_rx_work(unsigned long data)
> to
> void _rtl_rx_work(struct tasklet_struct *t).
Specifically do not try release resources which where
not allocated in the first place.
Cc: Tong Zhang
Signed-off-by: Gerd Hoffmann
---
drivers/gpu/drm/qxl/qxl_display.c | 3 +++
drivers/gpu/drm/qxl/qxl_kms.c | 4
2 files changed, 7 insertions(+)
diff --git
samirweng1979 wrote:
> From: wengjianfeng
>
> -ENOMEM has been used as a return value,it is not necessary to
> assign it, and if kzalloc fail,not need free it,so just return
> -ENOMEM when kzalloc fail.
>
> Signed-off-by: wengjianfeng
You sent the previous version just five days ago:
On 08.02.21 11:51, Jan Beulich wrote:
On 08.02.2021 11:41, Jürgen Groß wrote:
On 08.02.21 10:48, Jan Beulich wrote:
On 06.02.2021 11:49, Juergen Gross wrote:
In evtchn_read() use READ_ONCE() for reading the producer index in
order to avoid the compiler generating multiple accesses.
On 2/6/21 11:36 PM, Oleg Nesterov wrote:
On 02/04, Ravi Bangoria wrote:
+static int get_instr(struct mm_struct *mm, unsigned long addr, u32 *instr)
+{
+ struct page *page;
+ struct vm_area_struct *vma;
+ void *kaddr;
+ unsigned int gup_flags = FOLL_FORCE |
With the support of ->rmap(), it is possible to obtain the superblock on
a mapped device.
Signed-off-by: Shiyang Ruan
---
drivers/md/dm.c | 61 +
1 file changed, 61 insertions(+)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index
In the current code, arch_has_single_step() is not defined on MIPS,
that means MIPS does not support instruction single-step for user mode.
Delve is a debugger for the Go programming language, the ptrace syscall
PtraceSingleStep() failed [1] on MIPS and then the single step function
can not work
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