Hi Avri,
On Thu, 2020-12-03 at 07:32 +, Avri Altman wrote:
> >
> > Introduce event_notify variant function to allow
> > vendor to get notification of important events and connect
> > to vendor-specific debugging facilities.
> You need to add an implementation of this vop,
> otherwise it's
On Wed, Dec 02, 2020 at 10:19:48PM +0100, Enrico Weigelt, metux IT consult
wrote:
> Make it possible to opt-out from VMware support, for minimized kernels
> that never will be run under Vmware (eg. high-density virtualization
> or embedded systems).
>
> Average distro kernel will leave it on,
On Thu, Dec 03, 2020 at 11:10:30AM +0900, Namhyung Kim wrote:
> On Thu, Dec 3, 2020 at 1:19 AM Peter Zijlstra wrote:
>
> > diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
> > index 9a38f579bc76..5eb284819ee5 100644
> > --- a/include/linux/perf_event.h
> > +++
On Wed, 2020-09-30 at 10:21 +0800, Crystal Guo wrote:
> Force the write operation in case the read already happens
> to return the correct value.
>
> Signed-off-by: Crystal Guo
> ---
> drivers/reset/reset-ti-syscon.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git
Here, there is a chance of race condition occurrence which leads to
NULL pointer dereference with struct spi_geni_master member 'cur_xfer'
between setup_fifo_xfer() and handle_fifo_timeout() functions.
Fix this race condition with guarding the 'cur_xfer' where it gets updated,
with
The change is mostly cosmetic. No functional changes.
Since the driver now uses of_device_get_match_data() to obtain some driver
specific info, there is no need to define the OF table before the probe
function.
Signed-off-by: Alexandru Ardelean
---
drivers/clk/clk-axi-clkgen.c | 18
Up until the these limits were global/hard-coded, since they are typically
limits of the fabric.
However, since this is an FPGA generated clock, this may run on setups
where one clock is on a fabric, and another one synthesized on another
fabric connected via PCIe (or some other inter-connect,
Hi
there should be a line in the kernel log that says something like
"Damage blitter failed" with an error code. Is there any chance of
recovering it?
Best regards
Thomas
Am 02.12.20 um 03:29 schrieb kernel test robot:
Greeting,
FYI, we noticed the following commit (built with gcc-9):
Hi all,
After merging the rdma tree, today's linux-next build (htmldocs) produced
this warning:
drivers/infiniband/core/verbs.c:1206: warning: Function parameter or member
'caller' not described in 'ib_create_named_qp'
Introduced by commit
66f57b871efc ("RDMA/restrack: Support all QP
Hi Liu,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on shawnguo/for-next]
[also build test WARNING on robh/for-next soc/for-next clk/clk-next
linus/master v5.10-rc6 next-20201201]
[cannot apply to xlnx/master]
[If your patch is applied to the wrong git tree,
Hi,
On Wed, 2020-09-30 at 10:21 +0800, Crystal Guo wrote:
> Add a YAML documentation for Mediatek, which uses ti reset-controller
> driver directly. The TI reset controller provides a common reset
> management, and is suitable for Mediatek SoCs.
>
> Signed-off-by: Crystal Guo
> ---
>
Hi all,
After merging the block tree, today's linux-next build (htmldocs)
produced this warning:
fs/block_dev.c:1838: warning: Function parameter or member 'dev' not described
in 'lookup_bdev'
Introduced by commit
4e7b5671c6a8 ("block: remove i_bdev")
--
Cheers,
Stephen Rothwell
Hi all,
After merging the block tree, today's linux-next build (htmldocs)
produced this warning:
fs/block_dev.c:1067: warning: Excess function parameter 'whole' description in
'bd_abort_claiming'
Introduced by commit
37c3fc9abb25 ("block: simplify the block device claiming interface")
--
Hi,
On Wed, Dec 02, 2020 at 09:38:17PM +0100, Jernej Skrabec wrote:
> Two clock divider tables are missing sentinel at the end. Effect of that
> is that clock framework reads past the last entry. Fix that with adding
> sentinel at the end.
>
> Issue was discovered with KASan.
>
> Fixes:
>
> Introduce event_notify variant function to allow
> vendor to get notification of important events and connect
> to vendor-specific debugging facilities.
You need to add an implementation of this vop,
otherwise it's just dead code.
Thanks,
Avri
From: Biwen Li
Resolve coverity warnings as follows,
cond_at_most: Checking gpio >= 28U implies that gpio may be up
to 27 on the false branch.
overrun-call: Overrunning callees array of size 3 by passing
argument gpio (which evaluates to 27)
in call to
Hi Eric,
On Thu, Dec 3, 2020 at 8:51 AM Eric Lin wrote:
>
> Accesses to user-space memory without calling uaccess routine
> leads to hanging in page fault handler. Like arm64, we let it
> die earlier in page fault handler.
>
> Changes in v2:
> -Add a die_kernel_fault() helper
> -Split
On 12/2/20 11:22 PM, Andrew Klychkov wrote:
> Fixed twelve typos in cppc_sysfs.rst, binderfs.rst, paride.rst,
> zram.rst, bug-hunting.rst, introduction.rst, usage.rst, dm-crypt.rst
>
> Signed-off-by: Andrew Klychkov
> ---
> Documentation/admin-guide/acpi/cppc_sysfs.rst| 4 ++--
>
>
> From: Bean Huo
>
> Keep device power mode as active power mode and VCC supply only if
> fWriteBoosterBufferFlushDuringHibernate setting 1 is successful.
Why would it fail?
Since UFSHCD_CAP_WB_EN is toggled off on ufshcd_wb_probe If the device doesn't
support wb,
The check
allmodconfig
x86_64 randconfig-a004-20201202
x86_64 randconfig-a006-20201202
x86_64 randconfig-a001-20201202
x86_64 randconfig-a002-20201202
x86_64 randconfig-a005-20201202
x86_64 randconfig-a003-20201202
i386
On Thu, Dec 3, 2020 at 1:46 AM Tom Rix wrote:
>
>
> On 12/2/20 2:34 PM, Nick Desaulniers wrote:
> > On Tue, Nov 10, 2020 at 2:04 PM Joe Perches wrote:
> >> On Tue, 2020-11-10 at 14:00 -0800, Nick Desaulniers wrote:
> >>
> >>> Yeah, we could go through and remove %h and %hh to solve this, too,
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 34816d20f173a90389c8a7e641166d8ea9dce70a
commit: afe956c577b2d5a3d9834e4424587c1ebcf90c4c kbuild: Enable
-Wtautological-compare
date: 8 months ago
config: mips-randconfig-r021-20201203 (attached as
When the conversion was done to use devm_iio_kfifo_allocate(), a call to
iio_kfifo_free() was omitted (to be removed).
This change removes it.
Fixes: 3c5308058899 ("iio: adc: ti_am335x_adc: alloc kfifo & IRQ via devm_
functions")
Signed-off-by: Alexandru Ardelean
---
Seems I was doing too many
Nowadays UFS error history does not only have "history of errors"
but also have history of some other events which are not defined
as errors.
This patch fixes the confused naming of related functions,
and change the way for updating and printing history as preparation
of next patch.
This patch
Hi,
This series refines error history functions and introduce a new event_notify
vop to allow vendor to get notification of important events.
Change since v1:
- Change notify_event() to event_notify() to follow vop naming covention.
Stanley Chu (3):
scsi: ufs: Add error history for abort
Add error history for abort event in UFS Device W-LUN.
Besides, use specified value as parameter of ufshcd_update_reg_hist()
to identify the aborted tag or LUNs.
Reviewed-by: Can Guo
Signed-off-by: Stanley Chu
---
drivers/scsi/ufs/ufshcd.c | 6 --
1 file changed, 4 insertions(+), 2
Introduce event_notify variant function to allow
vendor to get notification of important events and connect
to vendor-specific debugging facilities.
Reviewed-by: Can Guo
Signed-off-by: Stanley Chu
---
drivers/scsi/ufs/ufshcd.c | 2 ++
drivers/scsi/ufs/ufshcd.h | 11 +++
2 files
Enable gcov profiling of the entire kernel on mips. Required changes
include disabling profiling for:
* arch/kernel/boot/compressed: not linked to main kernel.
Lightly tested on Loongson 3A3000 an 3A4000, seems to work as expected.
without "GCOV_PROFILE := n" in compressed Makefile,
build
Fixed twelve typos in cppc_sysfs.rst, binderfs.rst, paride.rst,
zram.rst, bug-hunting.rst, introduction.rst, usage.rst, dm-crypt.rst
Signed-off-by: Andrew Klychkov
---
Documentation/admin-guide/acpi/cppc_sysfs.rst| 4 ++--
Documentation/admin-guide/binderfs.rst | 2 +-
Add maintainers info for new Marvell Prestera Ethernet switch driver.
Signed-off-by: Mickey Rachamim
---
MAINTAINERS | 9 +
1 file changed, 9 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index a7bdebf955bb..04a27eb89428 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10540,6
On Thu, Dec 03, 2020 at 01:27:27AM +, Troy Lee wrote:
> Hi Broislav and Andrew,
>
> I removed these exported function and submitted v3 PATCH.
I saw that. A couple of comments:
First of all, please do not top-post on a public mailing list.
Secondly, Joel gave you Reviewed-by: and Acked-by:
Currently the code checks the interval value when the temperature is
read which is bad for two reasons:
- checking and setting the interval in the get_temp callback is
inaccurate and awful, that can be done when changing the value.
- Changing the thermal zone structure internals is an abuse
Quoting Dikshita Agarwal (2020-11-29 21:36:12)
> diff --git a/drivers/media/platform/qcom/venus/core.c
> b/drivers/media/platform/qcom/venus/core.c
> index 6103aaf..01a0cfe 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -22,6 +24,48
The module parameter can be set by using ops to get and set the
values. The change will allow to check the correctness of the interval
value everytime it is changed instead of checking in the get_temp
function.
Signed-off-by: Daniel Lezcano
---
drivers/platform/x86/acerhdf.c | 10 --
1
Add support from RPMH regulators found in PM8350 and PM8350c PMICs
Signed-off-by: Vinod Koul
---
drivers/regulator/qcom-rpmh-regulator.c | 62 +
1 file changed, 62 insertions(+)
diff --git a/drivers/regulator/qcom-rpmh-regulator.c
Add PM8350 and PM8350C compatibles for these PMICs found in some
Qualcomm platforms.
Signed-off-by: Vinod Koul
---
.../devicetree/bindings/regulator/qcom,rpmh-regulator.txt | 4
1 file changed, 4 insertions(+)
diff --git
Hi Andy,
I love your patch! Yet something to improve:
[auto build test ERROR on tip/x86/core]
[also build test ERROR on tip/x86/mm soc/for-next linus/master v5.10-rc6
next-20201201]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to
From: Raghavendra Rao Ananta
This adds pincontrol driver for tlmm block found in SM8350 SoC
Signed-off-by: Raghavendra Rao Ananta
Signed-off-by: Jeevan Shriram
[vkoul: rebase and tidy up for upstream]
Signed-off-by: Vinod Koul
---
drivers/pinctrl/qcom/Kconfig |9 +
Hi Linus,
Thanks for your input. I replied inline.
>-Original Message-
>From: Linus Walleij
>Sent: Thursday, December 3, 2020 2:55 AM
>To: Zulkifli, Muhammad Husaini
>Cc: Ulf Hansson ; Hunter, Adrian
>; Michal Simek ; linux-
>mmc ; Linux ARM ker...@lists.infradead.org>;
Add device tree binding Documentation details for Qualcomm SM8350
pinctrl driver.
Signed-off-by: Vinod Koul
---
.../pinctrl/qcom,sdm8350-pinctrl.yaml | 151 ++
1 file changed, 151 insertions(+)
create mode 100644
On 2020/12/3 14:56, Daeho Jeong wrote:
From: Daeho Jeong
Added two ioctl to decompress/compress explicitly the compression
enabled file in "compress_mode=user" mount option.
Using these two ioctls, the users can make a control of compression
and decompression of their files.
Signed-off-by:
From: Alexandru Tachici
LTC2992 has 4 open-drain GPIOS. This patch exports to user
space the 4 GPIOs using the GPIO driver Linux API.
Signed-off-by: Alexandru Tachici
---
drivers/hwmon/Kconfig | 1 +
drivers/hwmon/ltc2992.c | 160 +++-
2 files changed,
From: Alexandru Tachici
Add documentation for ltc2992.
Signed-off-by: Alexandru Tachici
---
.../bindings/hwmon/adi,ltc2992.yaml | 80 +++
1 file changed, 80 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwmon/adi,ltc2992.yaml
diff --git
From: Alexandru Tachici
LTC2992 is a rail-to-rail system monitor that
measures current, voltage, and power of two supplies.
Two ADCs simultaneously measure each supply’s current.
A third ADC monitors the input voltages and four
auxiliary external voltages.
Signed-off-by: Alexandru Tachici
---
From: Alexandru Tachici
LTC2992 is a rail-to-rail system monitor that
measures current, voltage, and power of two supplies.
Two ADCs simultaneously measure each supply’s current.
A third ADC monitors the input voltages and four
auxiliary external voltages (GPIOs).
1. Use hwmon to create sysfs
--
Ihr E-Mail-Konto wurde für eine Spende von $ 3.500.000,00 USD für
wohltätige Zwecke ausgewählt. Antworten Sie auf die folgende E-Mail,
um weitere Informationen zu erhalten
E-Mail: michaelfis...@gmail.com
On 2020/12/1 12:08, Daeho Jeong wrote:
From: Daeho Jeong
We will add a new "compress_mode" mount option to control file
compression mode. This supports "fs" and "user". In "fs" mode (default),
f2fs does automatic compression on the compression enabled files.
In "user" mode, f2fs disables the
From: Vivek Aknurwar
Lucid 5LPE is a slightly different Lucid PLL with different offsets and
porgramming sequence so add support for these
Signed-off-by: Vivek Aknurwar
Signed-off-by: Jeevan Shriram
[vkoul: rebase and tidy up for upstream]
Signed-off-by: Vinod Koul
---
From: Vivek Aknurwar
This adds Global Clock controller (GCC) driver for SM8350 SoC
Signed-off-by: Vivek Aknurwar
Signed-off-by: Jeevan Shriram
[vkoul: rebase and tidy up for upstream]
Signed-off-by: Vinod Koul
---
drivers/clk/qcom/Kconfig |9 +
drivers/clk/qcom/Makefile |1
This add rpmhcc and gcc clock controller drivers for the controllers found
in SM8350 SoC
Vinod Koul (3):
dt-bindings: clock: Add RPMHCC bindings for SM8350
clk: qcom: rpmh: add support for SM8350 rpmh clocks
dt-bindings: clock: Add SM8350 GCC clock bindings
Vivek Aknurwar (2):
clk: qcom:
On Thu, Dec 3, 2020 at 3:21 AM Walter Wu wrote:
>
> Syzbot reports many UAF issues for workqueue, see [1].
> In some of these access/allocation happened in process_one_work(),
> we see the free stack is useless in KASAN report, it doesn't help
> programmers to solve UAF for workqueue issue.
>
>
This adds the RPMH clocks present in SM8350 SoC
Signed-off-by: Vinod Koul
---
drivers/clk/qcom/clk-rpmh.c | 34 +++
include/dt-bindings/clock/qcom,rpmh.h | 8 +++
2 files changed, 42 insertions(+)
diff --git a/drivers/clk/qcom/clk-rpmh.c
Add device tree bindings for global clock controller on SM8350 SoCs.
Signed-off-by: Vinod Koul
---
.../bindings/clock/qcom,gcc-sm8350.yaml | 68 +
include/dt-bindings/clock/qcom,gcc-sm8350.h | 261 ++
2 files changed, 329 insertions(+)
create mode 100644
Add bindings and update documentation for clock rpmh driver on SM8350.
Signed-off-by: Vinod Koul
---
Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/clock/qcom,rpmhcc.yaml
Quoting Maulik Shah (2020-11-26 02:18:18)
> lockdep_assert_irqs_disabled() was added to check rpmh_flush()
> can only be invoked when irqs are disabled, this is true for
> APPS RSC as the last CPU going to deepest low power mode is
> writing sleep and wake TCSes.
>
> However for RSCs that support
On Wed, Dec 02, 2020 at 08:49:06PM +0200, Topi Miettinen wrote:
> On 1.12.2020 23.45, Topi Miettinen wrote:
> > Memory mappings inside kernel allocated with vmalloc() are in
> > predictable order and packed tightly toward the low addresses. With
> > new kernel boot parameter 'randomize_vmalloc=1',
On 12/3/20 2:25 PM, Yi Li wrote:
>> On 12/1/20 12:35 PM, Yi Li wrote:
>>> sorry, This patch will cause deadlock, i will check and redo it.
>>
>> Can you try latest upstream kernel firstly ? Before spending more time
>> on the fix.
>>
>
> This issue just happened three times （xenserver7.5 dom0
Currently we won't migrate irqs when offline CPUs, which has been
implemented on most architectures. That will lead to some devices work
incorrectly if the bound cores are offline.
While that can be easily supported by enabling GENERIC_IRQ_MIGRATION.
But i don't pretty known the reason it was not
On 2020/12/3 14:07, Jaegeuk Kim wrote:
On 11/11, Jaegeuk Kim wrote:
Light reported sometimes shinker gets nat_cnt < dirty_nat_cnt resulting in
wrong do_shinker work. Let's avoid to get stale data by using nat_tree_lock.
Reported-by: Light Hsieh
Signed-off-by: Jaegeuk Kim
---
v3:
- fix to
From: Daeho Jeong
Added two ioctl to decompress/compress explicitly the compression
enabled file in "compress_mode=user" mount option.
Using these two ioctls, the users can make a control of compression
and decompression of their files.
Signed-off-by: Daeho Jeong
---
v3: changed error
From: Mikhail Durnev
snd_pcm_hw_params_set_rate_near can return incorrect sample rate in
some cases, e.g. when the backend output rate is set to some value higher
than 48000 Hz and the input rate is 8000 Hz. So passing the value returned
by snd_pcm_hw_params_set_rate_near to snd_pcm_hw_params
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by
an equivalent 'dma_set_mask_and_coherent()' which is much less verbose.
Reported-by: kernel test robot
Signed-off-by: Youling Tang
---
v3: Fix build errors of incompatible pointer types.
drivers/i2c/busses/i2c-ismt.c |
On 12/3/20 2:20 AM, ivanhu wrote:
On 12/2/20 7:38 PM, Heinrich Schuchardt wrote:
On 11/30/20 11:38 AM, ivanhu wrote:
On 11/30/20 5:17 PM, Heinrich Schuchardt wrote:
On 11/30/20 9:16 AM, ivanhu wrote:
Hi Heinrich,
Thanks for the patch.
It looks good to me, but I noticed that the
We found this issue in an legacy out-of-tree kernel module
which didn't properly access user space pointer by get/put_user().
Such an illegal access loops in the page fault handler.
To resolve this, let it die here.
Signed-off-by: Eric Lin
Cc: Alan Kao
---
arch/riscv/mm/fault.c | 5 +
1
Like arm64, this patch adds a die_kernel_fault() helper
to ensure the same semantics for the different kernel faults.
Signed-off-by: Eric Lin
Cc: Alan Kao
---
arch/riscv/mm/fault.c | 13 +
1 file changed, 13 insertions(+)
diff --git a/arch/riscv/mm/fault.c b/arch/riscv/mm/fault.c
Accesses to user-space memory without calling uaccess routine
leads to hanging in page fault handler. Like arm64, we let it
die earlier in page fault handler.
Changes in v2:
-Add a die_kernel_fault() helper
-Split one long line code into two
Eric Lin (2):
riscv/mm: Introduce a
On Wed, Dec 02, 2020 at 05:00:22PM -0500, Michael S. Tsirkin wrote:
> On Wed, Dec 02, 2020 at 09:48:25PM +0800, Jason Wang wrote:
> >
> > On 2020/12/2 下午5:23, Michael S. Tsirkin wrote:
> > > On Wed, Dec 02, 2020 at 07:57:14AM +0200, Eli Cohen wrote:
> > > > On Wed, Dec 02, 2020 at 12:18:36PM
On 03.12.2020 08:57, Kuninori Morimoto wrote:
I think you want to add "fallthrough" between case 1/3/4 and case 0 ?
Hi Morimoto-san,
Yes, I will add it in the updated version of the patch. Thanks.
The checkpatch script did not tell me about that.
Best regards,
Misha
The schedstat include runqueue-specific stats and domain-specific stats,
so split it into two functions, show_rqstat() and show_domainstat().
No functional changes.
Signed-off-by: Yunfeng Ye
---
kernel/sched/stats.c | 101 +++
1 file changed, 54
A little clean up that moving the '\n' to the prior seq_printf. and
remove the separate seq_printf which for line breaks.
No functional changes.
Signed-off-by: Yunfeng Ye
---
kernel/sched/stats.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/sched/stats.c
On Thu, Dec 3, 2020 at 2:46 AM Tejun Heo wrote:
>
> Hello,
>
> On Wed, Dec 02, 2020 at 10:58:37PM +0800, Fox Chen wrote:
> > There is a big mutex in kernfs_dop_revalidate which slows down the
> > concurrent performance of kernfs.
> >
> > Since kernfs_dop_revalidate only does some checks, the lock
I am sorry for interrupting your day, with due respect trust and humility, I
write to you this proposal, which I believe would be of great interest to you.
I am looking for a reliable and capable partner that will assist my family and
I to transfer funds to his personal or company account for
Hi，Jerome
I recently migrated the 4.19 kernel and found that the RCA
reconfiguration for emMC is available within the mmc_set_relative_addr()
function within the mmc_ops.c file, but for SD card or SDIO
configuration, the mmc_send_relative_addr() function within the sd_ops.c
file is not
Pavel Machek 於 2020年12月2日 週三 下午8:23寫道：
>
> On Wed 2020-12-02 18:46:49, Gene Chen wrote:
> > From: Gene Chen
> >
> > Add LED_FUNCTION_MOONLIGHT definitions
> >
> > Signed-off-by: Gene Chen
> > Acked-by: Jacek Anaszewski
> > Acked-by: Rob Herring
> > ---
> > include/dt-bindings/leds/common.h |
Looping in Mathieu at this time.
On Thu, Dec 03, 2020 at 02:39:41PM +0800, Leo Yan wrote:
> Hi Will,
>
> [ + Mathieu ]
>
> On Tue, Dec 01, 2020 at 11:09:36PM +, Will Deacon wrote:
> > On Tue, Dec 01, 2020 at 12:10:40PM +0800, Leo Yan wrote:
> > > On Mon, Nov 30, 2020 at 04:46:51PM +,
This driver is for the EMIF private feature implemented under FPGA
Device Feature List (DFL) framework. It is used to expose memory
interface status information as well as memory clearing control.
The purpose of memory clearing block is to zero out all private memory
when FPGA is to be
This patch adds support for the Nios handshake private feature on Intel
PAC (Programmable Acceleration Card) N3000.
The Nios is the embedded processor on the FPGA card. This private feature
provides a handshake interface to FPGA Nios firmware, which receives
retimer configuration command from
Hi Will,
[ + Mathieu ]
On Tue, Dec 01, 2020 at 11:09:36PM +, Will Deacon wrote:
> On Tue, Dec 01, 2020 at 12:10:40PM +0800, Leo Yan wrote:
> > On Mon, Nov 30, 2020 at 04:46:51PM +, Will Deacon wrote:
> > > On Mon, Nov 30, 2020 at 06:24:54PM +0200, James Clark wrote:
> > > > Enable
Now the dfl drivers could be made as independent modules and put in
different folders according to their functionalities. In order for
scattered dfl device drivers to include dfl bus APIs, move the
dfl bus APIs to a new header file in the public folder.
[m...@kernel.org: Fixed up header guards to
Device Feature List (DFL) is a linked list of feature headers within the
device MMIO space. It is used by FPGA to enumerate multiple sub features
within it. Each feature can be uniquely identified by DFL type and
feature id, which can be read out from feature headers.
A dfl bus helps DFL
The value of the field dfl_device.type comes from the 12 bits register
field DFH_ID according to DFL spec. So this patch changes the definition
of the type field to u16.
Also it is not necessary to illustrate the valid bits of the type field
in comments. Instead we should explicitly define the
In order to support MODULE_DEVICE_TABLE() for dfl device driver, this
patch moves struct dfl_device_id to mod_devicetable.h
Some brief description for DFL (Device Feature List) is added to make
the DFL known to the whole kernel.
Signed-off-by: Xu Yilun
Signed-off-by: Wu Hao
Signed-off-by:
Main changes from v1:
- A new patch (Patch #3) to fix the description.
- Rename the dfl-bus.h to dfl.h
- Updated the MAINTAINERS under FPGA DFL DRIVERS.
- Improve comments and minor fixes.
Main changes from v2:
- Change the bus name from "dfl" to "fpga-dfl", also rename related
variables,
On Thu, Dec 3, 2020 at 2:28 AM Greg KH wrote:
>
> On Wed, Dec 02, 2020 at 10:58:35PM +0800, Fox Chen wrote:
> > Hello,
> >
> > kernfs is an important facillity to support pseudo file systems and cgroup.
> > Currently, with a global mutex, reading files concurrently from kernfs
> > (e.g. /sys)
>
On Thu, Dec 3, 2020 at 2:26 AM Greg KH wrote:
>
> On Wed, Dec 02, 2020 at 10:58:37PM +0800, Fox Chen wrote:
> > There is a big mutex in kernfs_dop_revalidate which slows down the
> > concurrent performance of kernfs.
> >
> > Since kernfs_dop_revalidate only does some checks, the lock is
> >
> -Original Message-
> From: Andrew Lunn
> Sent: 02 December 2020 20:28
> To: Yash Shah
> Cc: linux-...@vger.kernel.org; linux-ser...@vger.kernel.org; linux-
> p...@vger.kernel.org; linux-...@vger.kernel.org; linux-
> ker...@vger.kernel.org; linux-ri...@lists.infradead.org;
>
Hi,
Thanks for your comments.
> On Wed, Dec 02, 2020 at 10:58:36PM +0800, Fox Chen wrote:
> > @@ -121,7 +121,7 @@ int kernfs_iop_setattr(struct dentry *dentry, struct
> > iattr *iattr)
> > if (!kn)
> > return -EINVAL;
> >
> > - mutex_lock(_mutex);
> > +
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
---
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
---
arch/arm64/include/uapi/asm/unistd.h | 1 +
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 user will create a file descriptor using the memfd_secret()
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
Removing a PAGE_SIZE page from the direct map every time such page is
allocated for a secret memory mapping will cause severe fragmentation of
the direct map. This fragmentation can be reduced by using PMD-size pages
as a pool for small pages for secret memory mappings.
Add
From: Mike Rapoport
Account memory consumed by secretmem to memcg. The accounting is updated
when the memory is actually allocated and freed.
Signed-off-by: Mike Rapoport
Acked-by: Roman Gushchin
---
mm/filemap.c | 3 ++-
mm/secretmem.c | 36 +++-
2 files
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
The underlying implementations of set_direct_map_invalid_noflush() and
set_direct_map_default_noflush() allow updating multiple contiguous pages
at once.
Add numpages parameter to set_direct_map_*_noflush() to expose this ability
with these APIs.
Signed-off-by: Mike
From: Mike Rapoport
It will be used by the upcoming secret memory implementation.
Signed-off-by: Mike Rapoport
---
mm/internal.h | 3 +++
mm/mmap.c | 5 ++---
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/mm/internal.h b/mm/internal.h
index c43ccdddb0f6..ae146a260b14
From: Mike Rapoport
Hi,
@Andrew, this is based on v5.10-rc2-mmotm-2020-11-07-21-40, I can rebase on
current mmotm if you prefer.
This is an implementation of "secret" mappings backed by a file descriptor.
The file descriptor backing secret memory mappings is created using a
dedicated
From: Mike Rapoport
On arm64, set_direct_map_*() functions may return 0 without actually
changing the linear map. This behaviour can be controlled using kernel
parameters, so we need a way to determine at runtime whether calls to
set_direct_map_invalid_noflush() and
Commit 28ee90fe6048 ("x86/mm: implement free pmd/pte page interfaces")
introduced a new location where a pmd was released, but neglected to run
the pmd page destructor. In fact, this happened previously for a
different pmd release path and was fixed by commit:
c283610e44ec ("x86, mm: do not leak
On Wed, Jun 17, 2020 at 12:18:22PM +0200, Andrzej Pietrasiewicz wrote:
> Document inhibiting input devices and its relation to being
> a wakeup source.
>
> Signed-off-by: Andrzej Pietrasiewicz
Applied, thank you.
--
Dmitry
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