Fix smatch warning:
mm/zswap.c:425 zswap_cpu_comp_prepare() warn: passing zero to 'PTR_ERR'
crypto_alloc_comp() never return NULL, use IS_ERR
instead of IS_ERR_OR_NULL to fix this.
Fixes: f1c54846ee45 ("zswap: dynamic pool creation")
Signed-off-by: YueHaibing
---
mm/zswap.c | 2 +-
1 file
[ 138.620544] BUG: using __this_cpu_read() in preemptible [] code:
mmap05/4858
[ 138.620737] caller is lockdep_hardirqs_on_prepare+0x2f/0x1b0
[ 138.620880] CPU: 2 PID: 4858 Comm: mmap05 Kdump: loaded Tainted: G S
E 5.10.0.g07e0887-master #18
[ 138.621097] Hardware name:
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 5fc6b075e165f641fbc366b58b578055762d5f8c
commit: c4d0bfb45068d853a478b9067a95969b1886a30f bpf: Add bpf_snprintf_btf
helper
date: 5 weeks ago
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue,
Hi Reinette,
Thank you for correcting this!
The subject of this "cover letter" should be:
x86/resctrl: Fix kernfs node reference count leak issues
On 10/31/2020 5:18, Reinette Chatre wrote:
Apologies, the Subject intended to have a "x86/resctrl:" prefix.
On 10/30/2020 12:02 PM, Xiaochen Shen
On Fri, Oct 30, 2020 at 10:56:24PM +0100, Heiner Kallweit wrote:
> On 29.10.2020 11:07, Ioana Ciornei wrote:
> > From: Ioana Ciornei
> >
> > This patch set aims to actually add support for shared interrupts in
> > phylib and not only for multi-PHY devices. While we are at it,
> > streamline the
On Sat, Oct 31, 2020 at 12:36:27AM +0100, Andrew Lunn wrote:
> > > - Every PHY driver gains a .handle_interrupt() implementation that, for
> > > the most part, would look like below:
> > >
> > > irq_status = phy_read(phydev, INTR_STATUS);
> > > if (irq_status < 0) {
> > >
On Mon, Oct 26, 2020 at 2:33 PM Abel Vesa wrote:
>
> This driver is intended to work with the following BLK_CTL IPs found in
> i.MX8MP:
> - Audio
> - Media
> - HDMI
>
> Signed-off-by: Abel Vesa
> ---
> drivers/clk/imx/Makefile | 2 +-
> drivers/clk/imx/clk-blk-ctl-imx8mp.c |
On Fri, Oct 30, 2020 at 8:07 PM Jakub Kicinski wrote:
>
> This code has only seen cleanup patches since the git era begun -
> do you think that it may still have users? Or is it completely unused?
I don't think it is still used. But I don't have solid evidence. So I
asked people in the warning
Hi Lee,
On Fri, Oct 30, 2020 at 06:18:22PM +, Lee Jones wrote:
> Commit 09e5b3fd5672 ("Fonts: Support FONT_EXTRA_WORDS macros for
> built-in fonts") introduced the following error when building
> rpc_defconfig (only this build appears to be affected):
>
> `acorndata_8x8' referenced in
On Fri, 2020-10-30 at 12:58 +0100, Lukas Bulwahn wrote:
>
> On Fri, 30 Oct 2020, Joe Perches wrote:
>
> > On Fri, 2020-10-30 at 14:37 +0530, Dwaipayan Ray wrote:
> > > checkpatch has limited support for parsing email comments. It only
> > > support single name comments or single after address
On Fri, 30 Oct 2020 16:37:04 -0400
Tony Krowiak wrote:
> On 10/30/20 1:42 PM, Halil Pasic wrote:
> > On Thu, 29 Oct 2020 19:29:35 -0400
> > Tony Krowiak wrote:
> >
> @@ -1177,7 +1166,10 @@ static int vfio_ap_mdev_reset_queues(struct
> mdev_device *mdev)
>
On Sat, Oct 31, 2020 at 6:39 AM Daniel Latypov wrote:
>
> For simplcity, strip all trailing whitespace from parsed output.
> I imagine no one is printing out meaningful trailing whitespace via
> KUNIT_FAIL() or similar, and that if they are, they really shouldn't.
>
> `isolate_kunit_output()`
Fix smatch warning:
drivers/spi/spi-mem.c:746 spi_mem_probe() warn: passing zero to 'PTR_ERR'
Fixes: 5d27a9c8ea9e ("spi: spi-mem: Extend the SPI mem interface to set a
custom memory name")
Signed-off-by: YueHaibing
---
drivers/spi/spi-mem.c | 2 +-
1 file changed, 1 insertion(+), 1
Hi Rob,
On Fri, Oct 30, 2020 at 02:22:25PM -0500, Rob Herring wrote:
> On Wed, Oct 28, 2020 at 01:12:29PM +0530, Manivannan Sadhasivam wrote:
> > From: Vinod Koul
> >
> > Add device tree bindings for global clock controller on SDX55 SoCs.
> >
> > Signed-off-by: Vinod Koul
>
> This should
gpiod_to_irq() return negative value in case of error,
the existing code handle negative error codes wrongly.
Fixes: cff5e6f7e83f ("drm/bridge: Add driver for the TI TPD12S015 HDMI level
shifter")
Signed-off-by: YueHaibing
---
drivers/gpu/drm/bridge/ti-tpd12s015.c | 2 +-
1 file changed, 1
Hi,
On 10/30/20 5:27 PM, Fenghua Yu wrote:
> Since #DB for bus lock detect changes the split_lock_detect parameter,
> update the documentation for the changes.
>
> Signed-off-by: Fenghua Yu
> Reviewed-by: Tony Luck
> ---
> Change Log:
> - Simplify the documentation (Randy).
>
>
.
date: 2 months ago
config: x86_64-randconfig-r021-20201030 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
fa5a13276764a2657b3571fa3c57b07ee5d2d661)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master
gpiod_to_irq() never return 0, but returns negative in
case of error, check it and set gpio_irq to 0.
Fixes: 73970055450e ("sfp: add SFP module support")
Signed-off-by: YueHaibing
---
drivers/net/phy/sfp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git
On 2020/10/31 10:59, Thomas Gleixner wrote:
> On Sat, Oct 31 2020 at 10:19, Dongjiu Geng wrote:
>> Hi Marc,
>> Sorry to disturb you, Currently the LPI number is not fixed for
>> the device. The LPI number is dynamically allocated start from 8092.
>> For two OS which shares the ITS, One OS
On Wed, 28 Oct 2020 00:05:04 -0700 Xie He wrote:
> I wish to deprecate the Frame Relay layer (dlci.c) in the kernel because
> we already have a newer and better "HDLC Frame Relay" layer (hdlc_fr.c).
>
> Reasons why hdlc_fr.c is better than dlci.c include:
>
> 1.
> dlci.c is dated 1997, while
drivers/tty/serial/serial_mctrl_gpio.c:214
mctrl_gpio_init() warn: passing zero to 'ERR_PTR'
gpiod_to_irq() never return 0, so remove the useless test
and make code more clear.
Signed-off-by: YueHaibing
---
drivers/tty/serial/serial_mctrl_gpio.c | 2 +-
1 file changed, 1 insertion(+), 1
hi Hemant,
On Fri, Oct 30, 2020 at 06:26:38PM -0700, Hemant Kumar wrote:
> Hi Mani,
>
> On 10/30/20 3:34 AM, Manivannan Sadhasivam wrote:
> > Hi Hemant,
> >
> > On Thu, Oct 29, 2020 at 07:45:46PM -0700, Hemant Kumar wrote:
> > > This MHI client driver allows userspace clients to transfer
> > >
From: Gao Xiang
commit d578b46db69d125a654f509bdc9091d84e924dc8 upstream.
Don't recheck it since xattr_permission() already
checks CAP_SYS_ADMIN capability.
Just follow 5d3ce4f70172 ("f2fs: avoid duplicated permission check for
"trusted." xattrs")
Reported-by: Hongyu Jin
[ Gao Xiang: since
From: Gao Xiang
commit d578b46db69d125a654f509bdc9091d84e924dc8 upstream.
Don't recheck it since xattr_permission() already
checks CAP_SYS_ADMIN capability.
Just follow 5d3ce4f70172 ("f2fs: avoid duplicated permission check for
"trusted." xattrs")
Reported-by: Hongyu Jin
[ Gao Xiang: since
From: Gao Xiang
commit d578b46db69d125a654f509bdc9091d84e924dc8 upstream.
Don't recheck it since xattr_permission() already
checks CAP_SYS_ADMIN capability.
Just follow 5d3ce4f70172 ("f2fs: avoid duplicated permission check for
"trusted." xattrs")
Reported-by: Hongyu Jin
[ Gao Xiang: since
On Sat, Oct 31 2020 at 10:19, Dongjiu Geng wrote:
> Hi Marc,
> Sorry to disturb you, Currently the LPI number is not fixed for
> the device. The LPI number is dynamically allocated start from 8092.
> For two OS which shares the ITS, One OS needs to configure the device
> interrupt required
On 10/30/20 3:08 AM, Daniel Vetter wrote:
This is used by media/videbuf2 for persistent dma mappings, not just
for a single dma operation and then freed again, so needs
FOLL_LONGTERM.
Unfortunately current pup_locked doesn't support FOLL_LONGTERM due to
locking issues. Rework the code to pull
Quoting Viresh Kumar (2020-10-29 21:20:00)
> On 29-10-20, 09:40, Viresh Kumar wrote:
> > Thanks a lot. I was a bit worried about the crazy idea I had to solve
> > this :)
>
> Hmm, I thought this is the other patch where I had that crazy idea.
> This one was quite straight forward :)
>
What's
Ashok,
On Fri, Oct 30 2020 at 13:43, Ashok Raj wrote:
> On Fri, Oct 30, 2020 at 04:30:45PM -0300, Jason Gunthorpe wrote:
>> On Fri, Oct 30, 2020 at 12:23:25PM -0700, Raj, Ashok wrote:
>> It is a different subsystem, different maintainer, and different
>> reviewers.
>>
>> It is a development
Remove duplicated include.
Signed-off-by: YueHaibing
---
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 599f5b5ebc97..58c177756dc4 100644
Remove duplicated include.
Signed-off-by: YueHaibing
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index
Remove duplicated include.
Signed-off-by: YueHaibing
---
drivers/net/ethernet/cavium/liquidio/cn68xx_device.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/cavium/liquidio/cn68xx_device.c
b/drivers/net/ethernet/cavium/liquidio/cn68xx_device.c
index
On Fri, Oct 30, 2020 at 07:42:09PM -0700, Eric Biggers wrote:
> Hi Konstantin,
>
> On Fri, Oct 30, 2020 at 06:02:29PM +0300, Konstantin Komarov wrote:
> > This patch adds NTFS Read-Write driver to fs/ntfs3.
> >
> > Having decades of expertise in commercial file systems development and huge
> >
ping...
On 2020/8/11 10:12, YueHaibing wrote:
> If CONFIG_PM is not set, gcc warns:
>
> drivers/gpu/drm/rockchip/cdn-dp-core.c:1124:12:
> warning: ‘cdn_dp_resume’ defined but not used [-Wunused-function]
>
> Mark them __maybe_unused to fix this.
>
> Reported-by: Hulk Robot
> Signed-off-by:
Hi Konstantin,
On Fri, Oct 30, 2020 at 06:02:29PM +0300, Konstantin Komarov wrote:
> This patch adds NTFS Read-Write driver to fs/ntfs3.
>
> Having decades of expertise in commercial file systems development and huge
> test coverage, we at Paragon Software GmbH want to make our contribution to
>
--
Sir/Madam,
I have access to very vital information that can be used to move a huge
amount of money. I have done my homework very well and I have the
machineries in place to get it done since I am still in active service.
If it was possible for me to do it alone I would not have bothered
Hi Marc,
Sorry to disturb you, Currently the LPI number is not fixed for the device.
The LPI number is dynamically allocated start from 8092.
For two OS which shares the ITS, One OS needs to configure the device
interrupt required by another OS, and the other OS uses a fixed interrupt
ID
Add the missing iounmap() before return from qlafx00_iospace_config
in the error handling case when os failed to do ioremap for ha->iobase.
Signed-off-by: Qinglang Miao
---
drivers/scsi/qla2xxx/qla_mr.c | 8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git
On 10/30/2020 6:48 PM, Zou Wei wrote:
> Fix the following sparse warning:
>
> ./brcmstb-usb-pinmap.c:219:6: warning: symbol 'sync_all_pins' was not
> declared. Should it be static?
>
> The sync_all_pins has only call site within brcmstb-usb-pinmap.c
> Mark it static as suggested.
>
> Fixes:
Thanks for the patch.
On Thu, Oct 22, 2020 at 5:44 PM Houlong Wei wrote:
>
> Fixes: 576f1b4bc802 ("soc: mediatek: Add Mediatek CMDQ helper")
nit: This belongs right next to the Sob line, but I guess/hope
Matthias can help you fix that ,-)
>
> There may be possible timeout issue when lots of
Carlos,
On Fri, Oct 30 2020 at 18:19, Carlos O'Donell wrote:
> On 10/30/20 4:06 PM, Thomas Gleixner wrote:
>> On Fri, Oct 30 2020 at 12:58, Carlos O'Donell wrote:
>>> I expect that more requests for further time isolation will happen
>>> given the utility of this in containers.
>>
>> There was a
Fix the following sparse warning:
./brcmstb-usb-pinmap.c:219:6: warning: symbol 'sync_all_pins' was not declared.
Should it be static?
The sync_all_pins has only call site within brcmstb-usb-pinmap.c
Mark it static as suggested.
Fixes: 517c4c44b323 ("usb: Add driver to allow any GPIO to be
defconfig
mips allyesconfig
mips allmodconfig
powerpc allyesconfig
powerpc allmodconfig
powerpc allnoconfig
x86_64 randconfig-a005-20201030
x86_64
How are you doing today I have a proposal which i think may interest you and
benefit you.I will like to give you full details of this via email:
gerradfinancialplann...@gmail.com
Thanks.
John PHIL
On Thu, 29 Oct 2020 04:27:33 +0200 Vladimir Oltean wrote:
> This series enables the mscc_ocelot switch to forward raw L2 (non-IP)
> mdb entries as configured by the bridge driver after this patch:
>
>
Hi Mani,
On 10/30/20 3:34 AM, Manivannan Sadhasivam wrote:
Hi Hemant,
On Thu, Oct 29, 2020 at 07:45:46PM -0700, Hemant Kumar wrote:
This MHI client driver allows userspace clients to transfer
raw data between MHI device and host using standard file operations.
Driver instantiates UCI device
Hi Konstantin,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linus/master]
[also build test WARNING on v5.10-rc1 next-20201030]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base
Fix the following sparse warnings:
./passobj-attributes.c:38:23: warning: symbol 'po_is_pass_set' was not
declared. Should it be static?
./passobj-attributes.c:70:23: warning: symbol 'po_current_password' was not
declared. Should it be static?
./passobj-attributes.c:99:23: warning: symbol
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
master
head: 5fc6b075e165f641fbc366b58b578055762d5f8c
commit: 8d58f222e85f01da0c0e1fc1e77986c86de889e2 ubsan: disable UBSAN_ALIGNMENT
under COMPILE_TEST
date: 6 months ago
config: mips-randconfig-r024-20201030
On Thu, 29 Oct 2020 04:27:37 +0200 Vladimir Oltean wrote:
> + mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL);
> + if (!mc)
> + return -ENOMEM;
> +
> + mc->entry_type = ocelot_classify_mdb(mdb->addr);
> +
在 2020/10/30 下午9:52, Johannes Weiner 写道:
>
>> From a9ee63a213f40eb4d5a69b52fbb348ff9cd7cf6c Mon Sep 17 00:00:00 2001
>> From: Alex Shi
>> Date: Tue, 26 May 2020 16:49:22 +0800
>> Subject: [PATCH v21 04/20] mm/thp: use head for head page in
>> lru_add_page_tail
>>
>> Since the first parameter
在 2020/10/30 下午10:04, Johannes Weiner 写道:
>>> Acked-by: Johannes Weiner
>>>
>>> This should go in before the previous patch that adds the WARN for it.
>> Right, but than the long ops may not weird. Should I remove the ops and
>> resend the whole patchset?
> You mean the warning in the
Add the missing platform_driver_unregister() before return
from panel_simple_init in the error handling case when failed
to register panel_simple_dsi_driver with CONFIG_DRM_MIPI_DSI
enabled.
Signed-off-by: Qinglang Miao
---
drivers/gpu/drm/panel/panel-simple.c | 4 +++-
1 file changed, 3
Add the missing platform_driver_unregister() before return from
mtk_cpufreq_driver_init in the error handling case when failed
to register mtk-cpufreq platform device
Signed-off-by: Qinglang Miao
---
drivers/cpufreq/mediatek-cpufreq.c | 1 +
1 file changed, 1 insertion(+)
diff --git
Add the missing platform_driver_unregister() before return
from serial_txx9_init in the error handling case when failed
to register serial_txx9_pci_driver with macro ENABLE_SERIAL_TXX9_PCI
defined.
Signed-off-by: Qinglang Miao
---
drivers/tty/serial/serial_txx9.c | 7 +--
1 file changed, 5
On Thu, 29 Oct 2020 01:48:15 +0200 Vladimir Oltean wrote:
> When creating a new multicast port group, there is implicit conversion
> between the __u8 state member of struct br_mdb_entry and the unsigned
> char flags member of struct net_bridge_port_group. This implicit
> conversion relies on the
On Thu, 29 Oct 2020 01:38:31 +0200 Vladimir Oltean wrote:
> From: Nikolay Aleksandrov
>
> Extend the bridge multicast control and data path to configure routes
> for L2 (non-IP) multicast groups.
>
> The uapi struct br_mdb_entry union u is extended with another variant,
> mac_addr, which does
Change the fr_rx function to make this driver support any Ethertype
when receiving skbs on normal (non-Ethernet-emulating) PVC devices.
(This driver is already able to handle any Ethertype when sending.)
Originally in the fr_rx function, the code that parses the long (10-byte)
header only
The main purpose of this series is the last patch. The previous 4 patches
are just code clean-ups so that the last patch will not make the code too
messy. The patches must be applied in sequence.
The receiving code of this driver doesn't support arbitrary Ethertype
values. It only recognizes a
The eth_type_trans function is called when we receive frames carrying
Ethernet frames. This function expects a non-NULL pointer as an argument,
and assigns it directly to skb->dev.
However, the code handling other types of frames first assigns the pointer
to "dev", and then at the end checks
When an skb is received on a normal (non-Ethernet-emulating) PVC device,
call skb_reset_mac_header before we pass it to upper layers.
This is because normal PVC devices don't have header_ops, so any header we
have would not be visible to upper layer code when sending, so the header
shouldn't be
1.
Change the skb->len check from "<= 4" to "< 4".
At first we only need to ensure a 4-byte header is present. We indeed
normally need the 5th byte, too, but it'd be more logical and cleaner
to check its existence when we actually need it.
2.
Add an fh->ea2 check to the initial checks in fr_rx.
When the fr_rx function drops a received frame (because the protocol type
is not supported, or because the PVC virtual device that corresponds to
the DLCI number and the protocol type doesn't exist), the function frees
the skb and returns.
The code for freeing the skb and returning is repeated
On Mon, Oct 19, 2020 at 6:45 PM Joel Fernandes (Google)
wrote:
>
> +static unsigned long cpu_core_get_group_cookie(struct task_group *tg)
> +{
> + unsigned long color = 0;
> +
> + if (!tg)
> + return 0;
> +
> + for (; tg; tg = tg->parent) {
> + if
When an skb is received on a normal (non-Ethernet-emulating) PVC device,
call skb_reset_mac_header before we pass it to upper layers.
This is because normal PVC devices don't have header_ops, so any header we
have would not be visible to upper layer code when sending, so the header
shouldn't be
Allow the qcom_scm driver to be loadable as a permenent module.
This still uses the "depends on QCOM_SCM || !QCOM_SCM" bit to
ensure that drivers that call into the qcom_scm driver are
also built as modules. While not ideal in some cases its the
only safe way I can find to avoid build errors
When the fr_rx function drops a received frame (because the protocol type
is not supported, or because the PVC virtual device that corresponds to
the DLCI number and the protocol type doesn't exist), the function frees
the skb and returns.
The code for freeing the skb and returning is repeated
The eth_type_trans function is called when we receive frames carrying
Ethernet frames. This function expects a non-NULL pointer as an argument,
and assigns it directly to skb->dev.
However, the code handling other types of frames first assigns the pointer
to "dev", and then at the end checks
Change the fr_rx function to make this driver support any Ethertype
when receiving skbs on normal (non-Ethernet-emulating) PVC devices.
(This driver is already able to handle any Ethertype when sending.)
Originally in the fr_rx function, the code that parses the long (10-byte)
header only
The main purpose of this series is the last patch. The previous 4 patches
are just code clean-ups so that the last patch will not make the code too
messy. The patches must be applied in sequence.
The receiving code of this driver doesn't support arbitrary Ethertype
values. It only recognizes a
1.
Change the skb->len check from "<= 4" to "< 4".
At first we only need to ensure a 4-byte header is present. We indeed
normally need the 5th byte, too, but it'd be more logical and cleaner
to check its existence when we actually need it.
2.
Add an fh->ea2 check to the initial checks in fr_rx.
Tweaks to allow pinctrl-msm code to be loadable as a module.
This is needed in order to support having the qcom-scm driver,
which pinctrl-msm calls into, configured as a module.
This requires that we tweak Kconfigs selecting PINCTRL_MSM to
also depend on QCOM_SCM || QCOM_SCM=n so that we match
Robin Murphy pointed out that if the arm-smmu driver probes before
the qcom_scm driver, we may call qcom_scm_qsmmu500_wait_safe_toggle()
before the __scm is initialized.
Now, getting this to happen is a bit contrived, as in my efforts it
required enabling asynchronous probing for both drivers,
In trying to handle a possible driver probe ordering issue
brought up by Robin Murphy, I ran across a separate null pointer
crash in the iommu core in iommu_group_remove_device():
[2.732803] dwc3-qcom a6f8800.usb: failed to get usb-ddr path: -517
[2.739281] Unable to handle kernel NULL
Hi Randy,
On 10/29/20 10:48 PM, Randy Dunlap wrote:
On 10/29/20 7:45 PM, Hemant Kumar wrote:
diff --git a/drivers/bus/mhi/Kconfig b/drivers/bus/mhi/Kconfig
index e841c10..476cc55 100644
--- a/drivers/bus/mhi/Kconfig
+++ b/drivers/bus/mhi/Kconfig
@@ -20,3 +20,16 @@ config MHI_BUS_DEBUG
On 2020/10/31 0:55, Eric Biggers wrote:
On Fri, Oct 30, 2020 at 03:26:10PM +0800, Chao Yu wrote:
+
+struct f2fs_gc_range {
+ u32 sync;
+ u64 start;
+ u64 len;
+};
Userspace headers need to use __u32, __u64, etc. instead of u32, u64, etc.
Correct.
Did you try installing
A bus lock [1] is acquired either through split locked access to
writeback (WB) memory or by using locks to uncacheable (UC) memory
(e.g. direct device assignment). This is typically >1000 cycles slower
than an atomic operation within a cache line. It also disrupts performance
on other cores.
On Fri, 30 Oct 2020 14:47:56 -0700
Atish Patra wrote:
> > Look at arm64, they __kprobes flag and I guess it would also prevent
> > ftrace call site.
> >
>
> Are you sure about that ? __kprobes puts the code in .kprobes.text section
> which is under whitelist sections in recordmcount.pl &
#DB for bus lock is enabled by bus lock detection bit 2 in DEBUGCTL MSR
while #AC for split lock is enabled by split lock detection bit 29 in
TEST_CTRL MSR.
Delivery of #DB for bus lock in userspace clears DR6[11]. To avoid
confusion in identifying #DB, #DB handler sets the bit to 1 before
To enforce user application throttling or mitigations, extend the
existing split lock detect kernel parameter:
split_lock_detect=ratelimit:N
It limits bus lock rate to N per second for non root users.
Signed-off-by: Fenghua Yu
Reviewed-by: Tony Luck
---
arch/x86/kernel/cpu/intel.c |
A bus lock is acquired either through split locked access to
writeback (WB) memory or by using locks to uncacheable (UC) memory
(e.g. direct device assignment). This is typically >1000 cycles slower
than an atomic operation within a cache line. It also disrupts performance
on other cores.
Some
Since #DB for bus lock detect changes the split_lock_detect parameter,
update the documentation for the changes.
Signed-off-by: Fenghua Yu
Reviewed-by: Tony Luck
---
Change Log:
- Simplify the documentation (Randy).
.../admin-guide/kernel-parameters.txt | 28 +++
1
On Thu, 29 Oct 2020 11:50:52 -0500 Alex Elder wrote:
> On 10/29/20 11:11 AM, Jakub Kicinski wrote:
> > On Wed, 28 Oct 2020 14:41:43 -0500 Alex Elder wrote:
> >> This series fixes several bugs. They are minor, in that the code
> >> currently works on supported platforms even without these
On Wed, 28 Oct 2020 10:21:25 -0700 Moritz Fischer wrote:
> The driver does not implement a shutdown handler which leads to issues
> when using kexec in certain scenarios. The NIC keeps on fetching
> descriptors which gets flagged by the IOMMU with errors like this:
>
> DMAR: DMAR:[DMA read]
On Fri, Oct 30, 2020 at 7:12 AM Robin Murphy wrote:
> On 2020-10-30 01:02, John Stultz wrote:
> > On Wed, Oct 28, 2020 at 7:51 AM Robin Murphy wrote:
> >> Hmm, perhaps I'm missing something here, but even if the config options
> >> *do* line up, what prevents arm-smmu probing before qcom-scm and
On Thu, 29 Oct 2020 03:28:45 +0300 Sergej Bauer wrote:
> This is just a minor fix which prevents a kernel NULL pointer
> dereference when using phy-less lan743x.
>
> Signed-off-by: Sergej Bauer
I take you mean when the device is down netdev->phydev will be NULL?
> diff --git
On Fri, Oct 30, 2020 at 4:07 AM KP Singh wrote:
>
> "
>
> On Fri, Oct 30, 2020 at 12:28 AM Song Liu wrote:
> >
> > On Wed, Oct 28, 2020 at 9:17 AM KP Singh wrote:
> > >
> > > From: KP Singh
> > >
> > > Similar to bpf_local_storage for sockets and inodes add local storage
> > > for task_struct.
On Fri, Oct 30, 2020 at 03:52:24PM +0100, Bartosz Golaszewski wrote:
> On Fri, Oct 30, 2020 at 3:49 PM Bartosz Golaszewski
> wrote:
> >
> > On Thu, Oct 29, 2020 at 12:22 AM Kent Gibson wrote:
> > >
> > > On Wed, Oct 28, 2020 at 05:01:49PM +0100, Linus Walleij wrote:
> > > > On Thu, Oct 15, 2020
Making perf with gcc-9.1.1 generates the following warning:
CC ui/browsers/hists.o
ui/browsers/hists.c: In function 'perf_evsel__hists_browse':
ui/browsers/hists.c:3078:61: error: '%d' directive output may be \
truncated writing between 1 and 11 bytes into a region of size \
between 2 and
On Sat, Oct 31 2020 at 00:26, Thomas Gleixner wrote:
> On Fri, Oct 30 2020 at 15:46, Linus Torvalds wrote:
>> On Fri, Oct 30, 2020 at 3:26 PM Thomas Gleixner wrote:
>> To me, your patch series has two big advantages:
>>
>> - more common code
>>
>> - kmap_local() becomes more of a no-op
>>
>>
Document board compatible names for Elimo Engineering Impetus and Initium
Signed-off-by: Matteo Scordino
---
Documentation/devicetree/bindings/arm/sunxi.yaml | 13 +
1 file changed, 13 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/sunxi.yaml
The Allwinner V3 and S3 can use PG6/7 as RX/TX for UART1. Since no other
functions are assigned to those pins, they are a convenient choice for
a debugging or application UART.
This is specific to V3/S3 as the V3s's non-BGA package did not have
those pins.
Signed-off-by: Matteo Scordino
---
Hi,
I applied the suggestions from the discussion that stemmed from V1,
i.e.:
- using "sochip,s3", "allwinner,sun8i-v3" in the compatible string
- add a patch to do the same for the Pine64 PineCube
- alphabetic order in the dt-binding file
- match the dt-binding file with the actual dts files
The Elimo Engineering Impetus is an Open Source Hardware System-on-Module
based on the SoChip S3 SoC.
It is meant for integration into carrier boards or, more generally,
larger designs, and uses an M2 connector to facilitate that.
Interfaces on the M.2/NGFF 42mm connector:
WiFi IEEE 802. 11abgn
Add elimo as vendor prefix for dt bindings, since we are adding a dtsi
for a SoM and a dts for an SBC
Signed-off-by: Matteo Scordino
---
Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++
1 file changed, 2 insertions(+)
diff --git
The compatible string in the Pine64 Pincube dts diverges from the ones
used in other S3 based boards, like the LicheePi and the Elimo Impetus
and Initium. Discussion on LKML decided the PineCube should align to the
others.
Signed-off-by: Matteo Scordino
---
The Elimo Engineering Initium is an Open Source Hardware Single Board
Computer based on the Elimo Impetus SoM.
It is meant as the first development platform for the Impetus, providing
convenient access to the peripherals on the Impetus.
It provides:
USB-C power input
UART-to-USB bridge on the
On Fri, Oct 30, 2020 at 08:36:12AM -0500, Rob Herring wrote:
> On Wed, Oct 28, 2020 at 12:18:53AM -0700, Guru Das Srinagesh wrote:
> > Add compatible string that adds support for reporting VBUS detection
> > status that can be detected via a dedicated PMIC pin.
> >
> > Signed-off-by: Anirudh
> > - Every PHY driver gains a .handle_interrupt() implementation that, for
> > the most part, would look like below:
> >
> > irq_status = phy_read(phydev, INTR_STATUS);
> > if (irq_status < 0) {
> > phy_error(phydev);
> > return IRQ_NONE;
> > }
> >
> >
On Fri, Oct 30, 2020 at 2:45 PM Xiaochen Shen wrote:
>
> Willem reported growing of kernfs_node_cache entries in slabtop when
> repeatedly creating and removing resctrl subdirectories as well as when
> repeatedly mounting and unmounting resctrl filesystem.
>
> On resource group (control as well
1 - 100 of 1297 matches
Mail list logo
