mainline inclusion
from mainline-v5.13-rc1
commit e40f74c5
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6VS35

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e40f74c535b8a0ecf3ef0388b51a34cdadb34fb5

--------------------------------

Introduce a cpumask that indicates (for each CPU) what direction the
CPU hotplug is currently going. Notably, it tracks rollbacks. Eg. when
an up fails and we do a roll-back down, it will accurately reflect the
direction.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: NValentin Schneider <valentin.schneider@arm.com>
Link: https://lkml.kernel.org/r/20210310150109.151441252@infradead.orgSigned-off-by: NZeng Heng <zengheng4@huawei.com>

Merge Pull Request from: @hejunhao3 
 
Some HiSilicon SMMU PMCG suffers the erratum that the global PMU disable
control sometimes fail to disable each used the counters. This will lead
to error or inaccurate data since before we enable the counters the
counter's still counting for the event used in last perf session.

This patch tries to fix this by hardening the global disable process.
Before disable the PMU, writing an invalid event type (0xff) to focibly
stop the counters. 
 
Link:https://gitee.com/openeuler/kernel/pulls/851 

Reviewed-by: Yang Shen <shenyang39@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @Hongchen_Zhang 
 
PV IPI with less VM exit can improve performance than
iocsr emulation when sending ipi interrupt to multi cpus.
    
This patch supports:
1. sending PV IPI by hypercall
2. recording and updating steal time for VM
 
 
Link:https://gitee.com/openeuler/kernel/pulls/793 

Reviewed-by: Guo Dongtai <guodongtai@kylinos.cn> 
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @jiayingbao 
 
there is new sysfs interface current_freq_khz added in upstream. Backport related patches for uncore-freq driver.

below 3 patches is backported: 
ae7b2ce5 platform/x86/intel/uncore-freq: Use sysfs API to create.
414eef27 platform/x86/intel/uncore-freq: Display uncore current frequency.
8d75f7b4 platform/x86: intel-uncore-freq: Prevent driver loading in guests.

test:
build pass
new sysfs current_freq_khz functional as expected 
 
Link:https://gitee.com/openeuler/kernel/pulls/840 

Reviewed-by: Jason Zeng <jason.zeng@intel.com> 
Reviewed-by: Aichun Shi <aichun.shi@intel.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @jiayingbao 
 
backport some patches for Intel_pstate no-HWP and OOB mode, and also one HWP update for all server platforms
including below commit:

cd23f02f cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs
addca285 cpufreq: intel_pstate: Handle no_turbo in frequency invariance.
bbd67f1b cpufreq: intel_pstate: Support Sapphire Rapids OOB mode.
df51f287 cpufreq: intel_pstate: Add Sapphire Rapids support in no-HWP mode.
1f5e62f5 cpufreq: intel_pstate: Enable HWP IO boost for all servers.

test:
build pass
intel_pstate initial and functional as expected
 
 
Link:https://gitee.com/openeuler/kernel/pulls/839 

Reviewed-by: Jason Zeng <jason.zeng@intel.com> 
Reviewed-by: Aichun Shi <aichun.shi@intel.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @Hongchen_Zhang 
 
enable memory and pci hotplug related configs for LoongArch,
   used by LoongArch virtual machine now. 
 
Link:https://gitee.com/openeuler/kernel/pulls/809 

Reviewed-by: Guo Dongtai <guodongtai@kylinos.cn> 
Reviewed-by: Liu Chao <liuchao173@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @leoliu-oc 
 
Recent Zhaoxin/Centaur CPUs support X86_FEATURE_IDA and the turbo boost can be dynamically enabled or
disabled through MSR 0x1a0[38] in the same way as Intel. So add turbo boost control support for these CPUs too.

Issue
https://gitee.com/openeuler/kernel/issues/I6SKVN
 
 
Link:https://gitee.com/openeuler/kernel/pulls/547 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @leoliu-oc 
 
Zhaoxin CPUs  which use CENTAUR as vendor id, also have NONSTOP TSC feature.
So enable the ACPI driver support for it too.

Issue
https://gitee.com/openeuler/kernel/issues/I6SJQ8
 
 
Link:https://gitee.com/openeuler/kernel/pulls/544 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @hejunhao3 
 
1. Added support for HiSilicon T6 ETM
2. Fix CPU hold issue caused by hip09 ETM overflow 
 
Link:https://gitee.com/openeuler/kernel/pulls/848 

Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I798Y2
CVE: NA

----------------------------------------------------------------------

Some HiSilicon SMMU PMCG suffers the erratum that the global PMU disable
control sometimes fail to disable each used the counters. This will lead
to error or inaccurate data since before we enable the counters the
counter's still counting for the event used in last perf session.

This patch tries to fix this by hardening the global disable process.
Before disable the PMU, writing an invalid event type (0xff) to focibly
stop the counters.
Signed-off-by: NYicong Yang <yangyicong@hisilicon.com>
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I79882
CVE: NA

----------------------------------------------------------------------

When setting up SMT, not every process has an ETM, so the path
".../cs_etm/cpux/trcidr/trcidr0" does not exist, and the function
perf_pmu__scan_file() will return an error.
Log a error when read fails.
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I79882
CVE: NA

----------------------------------------------------------------------

Workaround this issue on HiSilicon ETM by setting bit 13 of TRCAUXCTLR
which is used to indicate that the ETM is in the idle state.
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I79882
CVE: NA

----------------------------------------------------------------------

Add ETMv4 periperhal ID for HiSilicon T6 platform.
Signed-off-by: NJunhao He <hejunhao3@huawei.com>

mainline inclusion
commit d6f89596
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6SKVN
CVE: NA

--------------------------------------------

Recent Zhaoxin/Centaur CPUs support X86_FEATURE_IDA and the turbo boost
can be dynamically enabled or disabled through MSR 0x1a0[38] in the same
way as Intel. So add turbo boost control support for these CPUs too.
Signed-off-by: NTony W Wang-oc <TonyWWang-oc@zhaoxin.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NLeoLiu-oc <leoliu-oc@zhaoxin.com>

zhaoxin inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I6SJQ8
CVE: NA

----------------------------------------

Zhaoxin CPUs  which use CENTAUR as vendor id, also have NONSTOP TSC
feature. So enable the ACPI driver support for it too.
Signed-off-by: Nleoliuoc <leoliu-oc@zhaoxin.com>

Merge Pull Request from: @aspiresky01 
 
The NIC driver supports the following features:
Supports IPv4/IPv6 TCP/UDP checksum offload, TSO (TCP Segmentation Offload), LRO (Large Receive Offload) offload and RSS (Receive Side Scaling) functions
Supports interrupt aggregation parameter configuration and interrupt adaptation.
Supports 802.1Q VLAN (Virtual Local Area Network) offloading and filtering.
Supports NIC SR-IOV (Single Root I/O Virtualization).
Support PF promiscuous mode, unicast list filtering, multicast list filtering, and full multicast mode.
Support VF unicast list filtering, multicast list filtering, and full multicast mode.
Supports VF QinQ mode.
Supports VF link state configuration and QoS configuration.
Support VF MAC address management.
Support VF spoofchk check.
Loopback testing is supported.
Support port lighting.
Support Ethernet mouth self-negotiation, support pause frame. 
 
Link:https://gitee.com/openeuler/kernel/pulls/835 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Reviewed-by: Chiqijun <chiqijun@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I77Q98

--------------------------------
Signed-off-by: Nlixianglai <lixianglai@loongson.cn>
Signed-off-by: Nyangyinglu <yangyinglu@loongson.cn>
Change-Id: I6b4ca700f830c05c2cf62695c22bb110dd6f017b

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I77Q98

--------------------------------
Signed-off-by: Nlixianglai <lixianglai@loongson.cn>
Signed-off-by: Nyangyinglu <yangyinglu@loongson.cn>
Change-Id: I640f550277271f97317e084aecb03c9a5da3cd01

mainline inclusion
from mainline-v5.18-rc5
commit 8d75f7b4
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78KDD
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8d75f7b4a3dfd5714a5dc87cfdaa27bd2d14aa48

Intel-SIG: commit 8d75f7b4 platform/x86: intel-uncore-freq: Prevent driver loading in guests.
Backport for intel-uncore-freqe driver

-------------------------------------------------

Loading this driver in guests results in unchecked MSR access error for
MSR 0x620.

There is no use of reading and modifying package/die scope uncore MSRs
in guests. So check for CPU feature X86_FEATURE_HYPERVISOR to prevent
loading of this driver in guests.

Fixes: dbce412a ("platform/x86/intel-uncore-freq: Split common and enumeration part")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215870Suggested-by: NBorislav Petkov <bp@suse.de>
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20220427100304.2562990-1-srinivas.pandruvada@linux.intel.comSigned-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v5.18-rc1
commit 414eef27
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78KDD
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=414eef27283a2133a0998beb8e3e35f84eaac961

Intel-SIG: commit 414eef27  platform/x86/intel/uncore-freq: Display uncore current frequency.
Backport for intel-uncore-freqe driver

-------------------------------------------------

Add a new sysfs attribute "current_freq_khz" to display current uncore
frequency. This value is read from MSR 0x621.

Root user permission is required to read uncore current frequency.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@intel.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220204000306.2517447-4-srinivas.pandruvada@linux.intel.comSigned-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v5.18-rc1
commit ae7b2ce5
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78KDD
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ae7b2ce578513adf0a77f0127e27ee4447d50443

Intel-SIG: commit ae7b2ce5 platform/x86/intel/uncore-freq: Use sysfs API to create attributes.
Backport for intel-uncore-freqe driver

-------------------------------------------------

Use of sysfs API is always preferable over using kobject calls to create
attributes. Remove usage of kobject_init_and_add() and use
sysfs_create_group(). To create relationship between sysfs attribute
and uncore instance use device_attribute*, which is defined per
uncore instance.

To create uniform locking for both read and write attributes take
lock in the sysfs callbacks, not in the actual functions where
the MSRs are read or updated.

No functional changes are expected.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@intel.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220204000306.2517447-3-srinivas.pandruvada@linux.intel.comSigned-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v6.4-rc1
commit 1f5e62f5
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f5e62f5fb217f2c1e003236be7d03cf606c26c4

Intel-SIG: commit 1f5e62f5 cpufreq: intel_pstate: Enable HWP IO boost for all servers.
Backport for intel-pstate driver

-------------------------------------------------

The HWP IO boost results in slight improvements for IO performance on
both Ice Lake and Sapphire Rapid servers.

Currently there is a CPU model check for Skylake desktop and server along
with the ACPI PM profile for performance and enterprise servers to enable
IO boost.

Remove the CPU model check, so that all current server models enable HWP
IO boost by default.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v6.2-rc1
commit df51f287
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=df51f287b5de3b9d4fd39593eafd1f8298d711c7

Intel-SIG: commit df51f287 cpufreq: intel_pstate: Add Sapphire Rapids support in no-HWP mode.
Backport for intel-pstate driver

-------------------------------------------------

Users may disable HWP in firmware, in which case intel_pstate wouldn't load
unless the CPU model is explicitly supported.

See also the following past commits:

commit d8de7a44 ("cpufreq: intel_pstate: Add Skylake servers support")
commit 706c5328 ("cpufreq: intel_pstate: Add Cometlake support in
no-HWP mode")
commit fbdc21e9 ("cpufreq: intel_pstate: Add Icelake servers support in
no-HWP mode")
commit 71bb5c82 ("cpufreq: intel_pstate: Add Tigerlake support in
no-HWP mode")
Signed-off-by: NGiovanni Gherdovich <ggherdovich@suse.cz>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v5.19-rc1
commit bbd67f1b
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bbd67f1b5a9449b090560ca5288aef0cfe623275

Intel-SIG: commit bbd67f1b cpufreq: intel_pstate: Support Sapphire Rapids OOB mode.
Backport for intel-pstate driver

-------------------------------------------------

Prevent intel_pstate to load when OOB (Out Of Band) P-states mode is
enabled in Sapphire Rapids. The OOB identifying bits are same as the
prior generation CPUs like Ice Lake servers. So, also add Sapphire
Rapids to intel_pstate_cpu_oob_ids list.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

mainline inclusion
from mainline-v5.19-rc1
commit addca285
category: bugfix
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=addca285120b0edf2fef795f7809c83774cf74b7

Intel-SIG: commit addca285 cpufreq: intel_pstate: Handle no_turbo in frequency invariance.
Backport for intel-pstate driver

-------------------------------------------------

Problem statement:

Once the user has disabled turbo frequency by

the cfs_rq's util_avg becomes quite small when compared with
CPU capacity.

Step to reproduce:

would launch 1 thread and bind it to CPU3, lasting for 100 seconds,
with a CPU utilization of 99%. [1]

top result:
%Cpu3  : 98.4 us,  0.0 sy,  0.0 ni,  1.6 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st

check util_avg:
cat /sys/kernel/debug/sched/debug | grep "cfs_rq\[3\]" -A 20 | grep util_avg
  .util_avg                      : 611

So the util_avg/cpu capacity is 611/1024, which is much smaller than
98.4% shown in the top result.

This might impact some logic in the scheduler. For example,
group_is_overloaded() would compare the group_capacity and group_util
in the sched group, to check if this sched group is overloaded or not.
With this gap, even when there is a nearly 100% workload, the sched
group will not be regarded as overloaded. Besides group_is_overloaded(),
there are also other victims. There is a ongoing work that aims to
optimize the task wakeup in a LLC domain. The main idea is to stop
searching idle CPUs if the sched domain is overloaded[2]. This proposal
also relies on the util_avg/CPU capacity to decide whether the LLC
domain is overloaded.

Analysis:

CPU frequency invariance has caused this difference. In summary,
the util_sum of cfs rq would decay quite fast when the CPU is in
idle, when the CPU frequency invariance is enabled.

The detail is as followed:

As depicted in update_rq_clock_pelt(), when the frequency invariance
is enabled, there would be two clock variables on each rq, clock_task
and clock_pelt:

   The clock_pelt scales the time to reflect the effective amount of
   computation done during the running delta time but then syncs back to
   clock_task when rq is idle.

   absolute time    | 1| 2| 3| 4| 5| 6| 7| 8| 9|10|11|12|13|14|15|16
   @ max frequency  ------******---------------******---------------
   @ half frequency ------************---------************---------
   clock pelt       | 1| 2|    3|    4| 7| 8| 9|   10|   11|14|15|16

The fast decay of util_sum during idle is due to:

 1. rq->clock_pelt is always behind rq->clock_task
 2. rq->last_update is updated to rq->clock_pelt' after invoking
    ___update_load_sum()
 3. Then the CPU becomes idle, the rq->clock_pelt' would be suddenly
    increased a lot to rq->clock_task
 4. Enters ___update_load_sum() again, the idle period is calculated by
    rq->clock_task - rq->last_update, AKA, rq->clock_task - rq->clock_pelt'.
    The lower the CPU frequency is, the larger the delta =
    rq->clock_task - rq->clock_pelt' will be. Since the idle period will be
    used to decay the util_sum only, the util_sum drops significantly during
    idle period.

Proposal:

This symptom is not only caused by disabling turbo frequency, but it
would also appear if the user limits the max frequency at runtime.

Because, if the frequency is always lower than the max frequency,
CPU frequency invariance would decay the util_sum quite fast during
idle.

As some end users would disable turbo after boot up, this patch aims to
present this symptom and deals with turbo scenarios for now.

It might be ideal if CPU frequency invariance is aware of the max CPU
frequency (user specified) at runtime in the future.

Link: https://github.com/yu-chen-surf/x86_cpuload.git #1
Link: https://lore.kernel.org/lkml/20220310005228.11737-1-yu.c.chen@intel.com/ #2
Signed-off-by: NChen Yu <yu.c.chen@intel.com>
Acked-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: NGiovanni Gherdovich <ggherdovich@suse.cz>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6V4RY
CVE: NA

---------------------------------

The NIC driver supports the following features:
Supports IPv4/IPv6 TCP/UDP checksum, TSO, LRO offload and RSS functions.
Supports interrupt aggregation parameter configuration and interrupt
adaptation.
Supports 802.1Q VLAN (Virtual Local Area Network) offloading and
filtering.
Supports NIC SR-IOV (Single Root I/O Virtualization).
Support PF promiscuous mode
Supports VF QinQ mode.
Supports VF link state configuration and QoS configuration.
Support VF MAC address management.
Support VF spoofchk check.
Support port lighting.
Support Ethernet mouth self-negotiation, support pause frame.
Signed-off-by: Nzhoujiadong <zhoujiadong5@huawei.com>
Reviewed-by: NWulike (Collin) <wulike1@huawei.com>

mainline inclusion
from mainline-v5.16
commit cd23f02f
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d23f02f166892603eb9f2d488152b975872b682

Intel-SIG: commit cd23f02f cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs.
Backport for intel-pstate driver

-------------------------------------------------

Commit fbdc21e9 ("cpufreq: intel_pstate: Add Icelake servers
support in no-HWP mode") enabled the use of Intel P-State driver
for Ice Lake servers.

But it doesn't cover the case when OS can't control P-States.

Therefore, for Ice Lake server, if MSR_MISC_PWR_MGMT bits 8 or 18
are enabled, then the Intel P-State driver should exit as OS can't
control P-States.

Fixes: fbdc21e9 ("cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode")
Signed-off-by: NAdamos Ttofari <attofari@amazon.de>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Nyingbao jia <yingbao.jia@intel.com>

Merge Pull Request from: @remimin 
 
https://gitee.com/openeuler/kernel/issues/I6XQ34 
 
Link:https://gitee.com/openeuler/kernel/pulls/601 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

Merge Pull Request from: @remimin 
 
https://gitee.com/openeuler/kernel/issues/I72190 
 
Link:https://gitee.com/openeuler/kernel/pulls/739 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com> 
Reviewed-by: sanglipeng <sanglipeng1@jd.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

Merge Pull Request from: @lyyue233 
 
issue:
[#I72XT8](https://gitee.com/openeuler/kernel/issues/I72XT8)
Uninitialized variables can cause various errors in a program, such as unexpected behavior, segmentation faults, or even security vulnerabilities.

To avoid these errors, we should always initialize variables before using them.Initialize variable “ err ” to address potential issues. 
 
Link:https://gitee.com/openeuler/kernel/pulls/767 

Reviewed-by: Kevin Zhu <zhukeqian1@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Acked-by: Zheng Zengkai <zhengzengkai@huawei.com> 

LoongArch inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I76XVK

--------------------------------

PV IPI with less VM exit can improve performance than
iocsr emulation when sending ipi interrupt to multi cpus.

This patch supports:
1. sending PV IPI by hypercall
2. recording and updating steal time for VM

Change-Id: Ia3ce493b83c067cc9e7c66b3094e4d87ff630f1d
Signed-off-by: Nzhoumin <zhoumin@loongson.cn>

Merge Pull Request from: @guzitao 
 
These patches generally cover the following tasks:

1.optimize kernel cores, remove unused codes, fix compile errors
2.fixes for perf, iommu, kvm, cpufreq, efi, struct pt_regs
3.add support, add support for restartable sequences, trace user task unalignment, add libbfd support in perf
4.optimize DIV and MOD instructions for bpf 
 
Link:https://gitee.com/openeuler/kernel/pulls/777 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 
Acked-by: Xie XiuQi <xiexiuqi@huawei.com> 

Merge Pull Request from: @ci-robot 
 
PR sync from:  Jialin Zhang <zhangjialin11@huawei.com>
 https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/thread/MYPG5M6GX66MEDMYSKLAETDPV37U7LWQ/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/824 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

3snic inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I77U9U
CVE: NA

---------------------------

Net: ethernet: 3snic 3s9xx network Kconfig add "select NET_DEVLINK"
Signed-off-by: NSteven Song <steven.song@3snic.com>
Signed-off-by: NJialin Zhang <zhangjialin11@huawei.com>

Merge Pull Request from: @zhangjialin11 
 
This reverts commit 932afc18.

Fix build error in riscv64:
build failed: riscv, allmodconfig

arch/riscv/kernel/smpboot.o: In function `smp_callin':
(.text+0x160): undefined reference to `store_cpu_topology'
arch/riscv/kernel/smpboot.o: In function `smp_prepare_cpus':
(.init.text+0x212): undefined reference to `store_cpu_topology'
make: *** [vmlinux] Error 1 
 
Link:https://gitee.com/openeuler/kernel/pulls/821 

Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> 
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> 

Merge Pull Request from: @nebula_matrix 
 
M1600 dirver depend on CONFIG_HWMON, let's add the dependency.

Bugfix：https://gitee.com/openeuler/kernel/issues/I77UIM?from=project-issue 
 
Link:https://gitee.com/openeuler/kernel/pulls/820 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I73HJ0

--------------------------------

This reverts commit 932afc18.

Fix build error in riscv64:
build failed: riscv, allmodconfig

arch/riscv/kernel/smpboot.o: In function `smp_callin':
(.text+0x160): undefined reference to `store_cpu_topology'
arch/riscv/kernel/smpboot.o: In function `smp_prepare_cpus':
(.init.text+0x212): undefined reference to `store_cpu_topology'
make: *** [vmlinux] Error 1
Signed-off-by: NJialin Zhang <zhangjialin11@huawei.com>

    m1600-dirver inclusion
    category: bugfix
    bugzilla: https://gitee.com/openeuler/kernel/issues/I77UIM
    CVE: NA

    --------------------------------

    M1600 dirver depend on CONFIG_HWMON, let's add the dependency.
Signed-off-by: NYi Chen <open@nebula-matrix.com>

Merge Pull Request from: @Hongchen_Zhang 
 
a double free problem in stmmac driver was triggered when doing mugen test,
After apply this patch the double free problem disappear. 
 
Link:https://gitee.com/openeuler/kernel/pulls/761 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Reviewed-by: Guo Dongtai <guodongtai@kylinos.cn> 
Reviewed-by: Yue Haibing <yuehaibing@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> 

Merge Pull Request from: @sanglipeng 
 
Backport 5.10.153 LTS patches from upstream.

Conflicts:

Already merged(3):
935a8b620210 mm/memory: add non-anonymous page check in the copy_present_page()
568e3812b177 mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
  (Already merged mainline commit 12df140f mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages)
d523384766fd scsi: sd: Revert "scsi: sd: Remove a local variable"
  (Already merged commit 7d7fe3e4 scsi: sd: Revert "scsi: sd: Remove a local variable") 

Context confilict(1):  
3b250824b6d3 xhci: Add quirk to reset host back to default state at shutdown
        
Rejected(4):
ce605b68db53 net: hinic: fix incorrect assignment issue in hinic_set_interrupt_cfg()
  (The involved file drivers/net/ethernet/huawei/hinic/hinic_hw_dev.c is already deleted
    by the commit f1168d29 net/hinic: Update Hardware Abstract Layer)
bb01910763f9 net: hinic: fix memory leak when reading function table
  (The involved file drivers/net/ethernet/huawei/hinic/hinic_debugfs.c is already deleted
    by the commit f1168d29 net/hinic: Update Hardware Abstract Layer)
6603843c80b1 net: hinic: fix the issue of CMDQ memory leaks
  (The involved file drivers/net/ethernet/huawei/hinic/hinic_hw_cmdq.c is already deleted
    by the commit f1168d29 net/hinic: Update Hardware Abstract Layer))
0ce1ef335300 net: hinic: fix the issue of double release MBOX callback of VF
   (The involved function hinic_vf_func_init() is moved to other file.)

Total patches: 91 - 3 - 4 = 84 
 
Link:https://gitee.com/openeuler/kernel/pulls/807 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com> 
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>