review.tizen.org Git - platform/kernel/linux-starfive.git/log

kernfs: add stub helper for kernfs_generic_poll()

In some randconfig builds, kernfs ends up being disabled, so there is no prototype
for kernfs_generic_poll()

In file included from kernel/sched/build_utility.c:97:
kernel/sched/psi.c:1479:3: error: implicit declaration of function 'kernfs_generic_poll' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
kernfs_generic_poll(t->of, wait);
^

Add a stub helper for it, as we have it for other kernfs functions.

Fixes: aff037078ecae ("sched/psi: use kernfs polling functions for PSI trigger polling")
Fixes: 147e1a97c4a0b ("fs: kernfs: add poll file operation")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Link: https://lore.kernel.org/r/20230724121823.1357562-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

x86/resctrl: make pseudo_lock_class a static const structure

Now that the driver core allows for struct class to be in read-only
memory, move the pseudo_lock_class structure to be declared at build
time placing it into read-only memory, instead of having to be
dynamically allocated at boot time.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Link: https://lore.kernel.org/r/20230620144431.583290-6-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

x86/MSR: make msr_class a static const structure

Now that the driver core allows for struct class to be in read-only
memory, move the msr_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620144431.583290-5-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

x86/cpuid: make cpuid_class a static const structure

Now that the driver core allows for struct class to be in read-only
memory, move the cpuid_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: x86@kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620144431.583290-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

HID: hidraw: make hidraw_class structure const

Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Cc: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620183141.681353-4-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

HID: roccat: make all 'class' structures const

Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Stefan Achatz <erazor_de@users.sourceforge.net>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: linux-input@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230620183141.681353-3-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

driver/base/cpu: Retry online operation if -EBUSY

Booting the kernel with "maxcpus=1" is a common technique for CPU
partitioning and isolation. It delays the CPU bringup process until
when the bootup scripts are ready to bring CPUs online by writing 1 to
/sys/device/system/cpu/cpu<X>/online. However, it was found that not
all the CPUs were online after bootup. The collection of offline CPUs
are different after every reboot.

Further investigation reveals that some "online" write operations
fail with an -EBUSY error. This error is returned when CPU hotplug is
temporiarly disabled when cpu_hotplug_disable() is called.

During bootup, the main caller of cpu_hotplug_disable() is
pci_call_probe() for PCI device initialization. By measuring the times
spent with cpu_hotplug_disabled set in a typical 2-socket server, most
of them last less than 10ms. However, there are a few that can last
hundreds of ms. Note that the cpu_hotplug_disabled period of different
devices can overlap leading to longer cpu_hotplug_disabled hold time.

Since the CPU hotplug disable condition is transient and it is not
that easy to modify all the existing bootup scripts to handle this
condition, the kernel can help by retrying the online operation when
an -EBUSY error is returned. This patch retries the online operation
in cpu_subsys_online() when an -EBUSY error is returned for up to 5
times after an exponentially increasing delay that can last a total of
at least 620ms of waiting time by calling msleep().

With this patch in place, booting up the patched kernel with "maxcpus=1"
does not leave any CPU in an offline state in 10 reboot attempts.

Reported-by: Vishal Agrawal <vagrawal@redhat.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20230724143826.3996163-1-longman@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

docs: stable-kernel-rules: make rule section more straight forward

Tweak some of the rule text to make things more straight forward, with
the goal to stick closely to the intend of the old text:

* put the "it or equivalent fix must be upstream" rule at the top, as
  it's one of the most important ones that at the same time often seems
  to be missed by developers.
* "It must fix only one thing" was dropped, as that is almost always a
  thing that needs to be handled earlier when the change is mainlined.
  Furthermore, this is already indirectly covered by the "Separate your
  changes" section in Documentation/process/submitting-patches.rst which
  the rules already point to.
* six other rules are in the end one rule with clarifications; structure
  the text accordingly to make it a lot easier to follow and understand
  the intend.
* drop the 'In short, something critical' from one of those notes: it
  contradicts the "real bug that bothers people" aspect somewhat and does
  not really add anything

CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/f83e812879caa978a51a1a7cae7c359f29fc093c.1689056247.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

docs: stable-kernel-rules: mention other usages for stable tag comments

Document how to delay backporting or send a note to the stable team
using shell-style inline comments attached to stable tags.

CC: Greg KH <gregkh@linuxfoundation.org>
CC: Sasha Levin <sashal@kernel.org>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://lore.kernel.org/r/bf1489b40ff358b7cb4f7d8cc73d5c7c3c143471.1689056247.git.linux@leemhuis.info
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

tpm: make all 'class' structures const

Now that the driver core allows for struct class to be in read-only
memory, making all 'class' structures to be declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at load time.

Cc: Peter Huewe <peterhuewe@gmx.de>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: linux-integrity@vger.kernel.org
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20230620144642.584926-2-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kobject: Add helper kobj_ns_type_is_valid()

There are too many "(type > KOBJ_NS_TYPE_NONE) && (type < KOBJ_NS_TYPES)"
and "(type <= KOBJ_NS_TYPE_NONE) || (type >= KOBJ_NS_TYPES)", add helper
kobj_ns_type_is_valid() to eliminate duplicate code and improve
readability.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20230726062508.950-1-thunder.leizhen@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

driver core: Call dma_cleanup() on the test_remove path

When test_remove is enabled really_probe() does not properly pair
dma_configure() with dma_remove(), it will end up calling dma_configure()
twice. This corrupts the owner_cnt and renders the group unusable with
VFIO/etc.

Add the missing cleanup before going back to re_probe.

Fixes: 25f3bcfc54bc ("driver core: Add dma_cleanup callback in bus_type")
Reported-by: Zenghui Yu <yuzenghui@huawei.com>
Tested-by: Zenghui Yu <yuzenghui@huawei.com>
Closes: https://lore.kernel.org/all/6472f254-c3c4-8610-4a37-8d9dfdd54ce8@huawei.com/
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/0-v2-4deed94e283e+40948-really_probe_dma_cleanup_jgg@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

driver core: test_async: fix an error code

The test_platform_device_register_node() function should return error
pointers instead of NULL. That is what the callers are expecting.

Fixes: 57ea974fb871 ("driver core: Rewrite test_async_driver_probe to cover serialization and NUMA affinity")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/1e11ed19-e1f6-43d8-b352-474134b7c008@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

driver core: Move dev_err_probe() to where it belogs

dev_err_probe() belongs to the printing API, hence
move the definition from device.h to dev_printk.h.

There is no change to the callers at all, since:
1) implementation is located in the same core.c;
2) dev_printk.h is guaranteed to be included by device.h.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20230721131309.16821-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kobject: Reorder fields in 'struct kobject'

Group some variables based on their sizes to reduce hole and avoid padding.
On x86_64, this shrinks the size of 'struct kobject' from 256 to 244 bytes.

This structure is often included in some other structures. So these other
structures will also benefit from this 8 bytes saving.

This is especially nice for structure like 'cma_kobject' or 'class_dir'
that are now 256 bytes long. When they are kzalloc()'ed, 256 bytes are
allocated, instead of 512.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/6c7d1e3005dbec5483bdb9b7b60071175bf7bf70.1688811201.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Linux 6.5-rc4

Merge tag 'spi-fix-v6.5-rc3' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
"A bunch of fixes for the Qualcomm QSPI driver, fixing multiple issues
  with the newly added DMA mode - it had a number of issues exposed when
  tested in a wider range of use cases, both race condition style issues
  and issues with different inputs to those that had been used in test"

* tag 'spi-fix-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-qcom-qspi: Add mem_ops to avoid PIO for badly sized reads
  spi: spi-qcom-qspi: Fallback to PIO for xfers that aren't multiples of 4 bytes
  spi: spi-qcom-qspi: Add DMA_CHAIN_DONE to ALL_IRQS
  spi: spi-qcom-qspi: Call dma_wmb() after setting up descriptors
  spi: spi-qcom-qspi: Use GFP_ATOMIC flag while allocating for descriptor
  spi: spi-qcom-qspi: Ignore disabled interrupts' status in isr

Merge tag 'regulator-fix-v6.5-rc3' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
"A couple of small fixes for the the mt6358 driver, fixing error
  reporting and a bootstrapping issue"

* tag 'regulator-fix-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: mt6358: Fix incorrect VCN33 sync error message
  regulator: mt6358: Sync VCN33_* enable status after checking ID

Merge tag 'usb-6.5-rc4' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
"Here are a set of USB driver fixes for 6.5-rc4. Include in here are:

   - new USB serial device ids

   - dwc3 driver fixes for reported issues

   - typec driver fixes for reported problems

   - gadget driver fixes

   - reverts of some problematic USB changes that went into -rc1

  All of these have been in linux-next with no reported problems"

* tag 'usb-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (24 commits)
  usb: misc: ehset: fix wrong if condition
  usb: dwc3: pci: skip BYT GPIO lookup table for hardwired phy
  usb: cdns3: fix incorrect calculation of ep_buf_size when more than one config
  usb: gadget: call usb_gadget_check_config() to verify UDC capability
  usb: typec: Use sysfs_emit_at when concatenating the string
  usb: typec: Iterate pds array when showing the pd list
  usb: typec: Set port->pd before adding device for typec_port
  usb: typec: qcom: fix return value check in qcom_pmic_typec_probe()
  Revert "usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()"
  Revert "usb: xhci: tegra: Fix error check"
  USB: gadget: Fix the memory leak in raw_gadget driver
  usb: gadget: core: remove unbalanced mutex_unlock in usb_gadget_activate
  Revert "usb: dwc3: core: Enable AutoRetry feature in the controller"
  Revert "xhci: add quirk for host controllers that don't update endpoint DCS"
  USB: quirks: add quirk for Focusrite Scarlett
  usb: xhci-mtk: set the dma max_seg_size
  MAINTAINERS: drop invalid usb/cdns3 Reviewer e-mail
  usb: dwc3: don't reset device side if dwc3 was configured as host-only
  usb: typec: ucsi: move typec_set_mode(TYPEC_STATE_SAFE) to ucsi_unregister_partner()
  usb: ohci-at91: Fix the unhandle interrupt when resume
  ...

Merge tag 'tty-6.5-rc4' of git://git./linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
"Here are some small TTY and serial driver fixes for 6.5-rc4 for some
  reported problems. Included in here is:

   - TIOCSTI fix for braille readers

   - documentation fix for minor numbers

   - MAINTAINERS update for new serial files in -rc1

   - minor serial driver fixes for reported problems

  All of these have been in linux-next with no reported problems"

* tag 'tty-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: 8250_dw: Preserve original value of DLF register
  tty: serial: sh-sci: Fix sleeping in atomic context
  serial: sifive: Fix sifive_serial_console_setup() section
  Documentation: devices.txt: reconcile serial/ucc_uart minor numers
  MAINTAINERS: Update TTY layer for lists and recently added files
  tty: n_gsm: fix UAF in gsm_cleanup_mux
  TIOCSTI: always enable for CAP_SYS_ADMIN

Merge tag 'staging-6.5-rc4' of git://git./linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
"Here are three small staging driver fixes for 6.5-rc4 that resolve
  some reported problems. These fixes are:

   - fix for an old bug in the r8712 driver

   - fbtft driver fix for a spi device

   - potential overflow fix in the ks7010 driver

  All of these have been in linux-next with no reported problems"

* tag 'staging-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()
  staging: fbtft: ili9341: use macro FBTFT_REGISTER_SPI_DRIVER
  staging: r8712: Fix memory leak in _r8712_init_xmit_priv()

Merge tag 'char-misc-6.5-rc4' of git://git./linux/kernel/git/gregkh/char-misc

Pull char driver and Documentation fixes from Greg KH:
"Here is a char driver fix and some documentation updates for 6.5-rc4
  that contain the following changes:

   - sram/genalloc bugfix for reported problem

   - security-bugs.rst update based on recent discussions

   - embargoed-hardware-issues minor cleanups and then partial revert
     for the project/company lists

  All of these have been in linux-next for a while with no reported
  problems, and the documentation updates have all been reviewed by the
  relevant developers"

* tag 'char-misc-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc/genalloc: Name subpools by of_node_full_name()
  Documentation: embargoed-hardware-issues.rst: add AMD to the list
  Documentation: embargoed-hardware-issues.rst: clean out empty and unused entries
  Documentation: security-bugs.rst: clarify CVE handling
  Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group

Merge tag 'probes-fixes-v6.5-rc3' of git://git./linux/kernel/git/trace/linux-trace

Pull probe fixes from Masami Hiramatsu:

- probe-events: add NULL check for some BTF API calls which can return
   error code and NULL.

- ftrace selftests: check fprobe and kprobe event correctly. This fixes
   a miss condition of the test command.

- kprobes: do not allow probing functions that start with "__cfi_" or
   "__pfx_" since those are auto generated for kernel CFI and not
   executed.

* tag 'probes-fixes-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  kprobes: Prohibit probing on CFI preamble symbol
  selftests/ftrace: Fix to check fprobe event eneblement
  tracing/probes: Fix to add NULL check for BTF APIs

Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
"x86:

   - Do not register IRQ bypass consumer if posted interrupts not
     supported

   - Fix missed device interrupt due to non-atomic update of IRR

   - Use GFP_KERNEL_ACCOUNT for pid_table in ipiv

   - Make VMREAD error path play nice with noinstr

   - x86: Acquire SRCU read lock when handling fastpath MSR writes

   - Support linking rseq tests statically against glibc 2.35+

   - Fix reference count for stats file descriptors

   - Detect userspace setting invalid CR0

  Non-KVM:

   - Remove coccinelle script that has caused multiple confusion
     ("debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE()
     usage", acked by Greg)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (21 commits)
  KVM: selftests: Expand x86's sregs test to cover illegal CR0 values
  KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest
  KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid
  Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"
  KVM: selftests: Verify stats fd is usable after VM fd has been closed
  KVM: selftests: Verify stats fd can be dup()'d and read
  KVM: selftests: Verify userspace can create "redundant" binary stats files
  KVM: selftests: Explicitly free vcpus array in binary stats test
  KVM: selftests: Clean up stats fd in common stats_test() helper
  KVM: selftests: Use pread() to read binary stats header
  KVM: Grab a reference to KVM for VM and vCPU stats file descriptors
  selftests/rseq: Play nice with binaries statically linked against glibc 2.35+
  Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"
  KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes
  KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path
  KVM: VMX: Make VMREAD error path play nice with noinstr
  KVM: x86/irq: Conditionally register IRQ bypass consumer again
  KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv
  KVM: x86: check the kvm_cpu_get_interrupt result before using it
  KVM: x86: VMX: set irr_pending in kvm_apic_update_irr
  ...

Merge tag 'locking_urgent_for_v6.5_rc4' of git://git./linux/kernel/git/tip/tip

Pull locking fix from Borislav Petkov:

- Fix a rtmutex race condition resulting from sharing of the sort key
   between the lock waiters and the PI chain tree (->pi_waiters) of a
   task by giving each tree their own sort key

* tag 'locking_urgent_for_v6.5_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/rtmutex: Fix task->pi_waiters integrity

Merge tag 'x86_urgent_for_v6.5_rc4' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

- AMD's automatic IBRS doesn't enable cross-thread branch target
   injection protection (STIBP) for user processes. Enable STIBP on such
   systems.

- Do not delete (but put the ref instead) of AMD MCE error thresholding
   sysfs kobjects when destroying them in order not to delete the kernfs
   pointer prematurely

- Restore annotation in ret_from_fork_asm() in order to fix kthread
   stack unwinding from being marked as unreliable and thus breaking
   livepatching

* tag 'x86_urgent_for_v6.5_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Enable STIBP on AMD if Automatic IBRS is enabled
  x86/MCE/AMD: Decrement threshold_bank refcount when removing threshold blocks
  x86: Fix kthread unwind

Merge tag 'irq_urgent_for_v6.5_rc4' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

- Work around an erratum on GIC700, where a race between a CPU handling
   a wake-up interrupt, a change of affinity, and another CPU going to
   sleep can result in a lack of wake-up event on the next interrupt

- Fix the locking required on a VPE for GICv4

- Enable Rockchip 3588001 erratum workaround for RK3588S

- Fix the irq-bcm6345-l1 assumtions of the boot CPU always be the first
   CPU in the system

* tag 'irq_urgent_for_v6.5_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3: Workaround for GIC-700 erratum 2941627
  irqchip/gic-v3: Enable Rockchip 3588001 erratum workaround for RK3588S
  irqchip/gic-v4.1: Properly lock VPEs when doing a directLPI invalidation
  irq-bcm6345-l1: Do not assume a fixed block to cpu mapping

Merge tag '6.5-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:
"Four small SMB3 client fixes:

   - two reconnect fixes (to address the case where non-default
     iocharset gets incorrectly overridden at reconnect with the
     default charset)

   - fix for NTLMSSP_AUTH request setting a flag incorrectly)

   - Add missing check for invalid tlink (tree connection) in ioctl"

* tag '6.5-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: add missing return value check for cifs_sb_tlink
  smb3: do not set NTLMSSP_VERSION flag for negotiate not auth request
  cifs: fix charset issue in reconnection
  fs/nls: make load_nls() take a const parameter

Merge tag 'trace-v6.5-rc3' of git://git./linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

- Fix to /sys/kernel/tracing/per_cpu/cpu*/stats read and entries.

   If a resize shrinks the buffer it clears the read count to notify
   readers that they need to reset. But the read count is also used for
   accounting and this causes the numbers to be off. Instead, create a
   separate variable to use to notify readers to reset.

- Fix the ref counts of the "soft disable" mode. The wrong value was
   used for testing if soft disable mode should be enabled or disable,
   but instead, just change the logic to do the enable and disable in
   place when the SOFT_MODE is set or cleared.

- Several kernel-doc fixes

- Removal of unused external declarations

* tag 'trace-v6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: Fix warning in trace_buffered_event_disable()
  ftrace: Remove unused extern declarations
  tracing: Fix kernel-doc warnings in trace_seq.c
  tracing: Fix kernel-doc warnings in trace_events_trigger.c
  tracing/synthetic: Fix kernel-doc warnings in trace_events_synth.c
  ring-buffer: Fix kernel-doc warnings in ring_buffer.c
  ring-buffer: Fix wrong stat of cpu_buffer->read

arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FS

Commit a2225d931f75 ("autofs: remove left-over autofs4 stubs")
promised the removal of the fs/autofs/Kconfig fragment for AUTOFS4_FS
within a couple of releases, but five years later this still has not
happened yet, and AUTOFS4_FS is still enabled in 63 defconfigs.

Get rid of it mechanically:

   git grep -l CONFIG_AUTOFS4_FS -- '*defconfig' |
       xargs sed -i 's/AUTOFS4_FS/AUTOFS_FS/'

Also just remove the AUTOFS4_FS config option stub.  Anybody who hasn't
regenerated their config file in the last five years will need to just
get the new name right when they do.

Signed-off-by: Sven Joachim <svenjoac@gmx.de>
Acked-by: Ian Kent <raven@themaw.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'loongarch-fixes-6.5-1' of git://git./linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
"Some bug fixes for build system, builtin cmdline handling, bpf and
  {copy, clear}_user, together with a trivial cleanup"

* tag 'loongarch-fixes-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: Cleanup __builtin_constant_p() checking for cpu_has_*
  LoongArch: BPF: Fix check condition to call lu32id in move_imm()
  LoongArch: BPF: Enable bpf_probe_read{, str}() on LoongArch
  LoongArch: Fix return value underflow in exception path
  LoongArch: Fix CMDLINE_EXTEND and CMDLINE_BOOTLOADER handling
  LoongArch: Fix module relocation error with binutils 2.41
  LoongArch: Only fiddle with CHECKFLAGS if `need-compiler'

KVM: selftests: Expand x86's sregs test to cover illegal CR0 values

Add coverage to x86's set_sregs_test to verify KVM rejects vendor-agnostic
illegal CR0 values, i.e. CR0 values whose legality doesn't depend on the
current VMX mode. KVM historically has neglected to reject bad CR0s from
userspace, i.e. would happily accept a completely bogus CR0 via
KVM_SET_SREGS{2}.

Punt VMX specific subtests to future work, as they would require quite a
bit more effort, and KVM gets coverage for CR0 checks in general through
other means, e.g. KVM-Unit-Tests.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest

Stuff CR0 and/or CR4 to be compliant with a restricted guest if and only
if KVM itself is not configured to utilize unrestricted guests, i.e. don't
stuff CR0/CR4 for a restricted L2 that is running as the guest of an
unrestricted L1. Any attempt to VM-Enter a restricted guest with invalid
CR0/CR4 values should fail, i.e. in a nested scenario, KVM (as L0) should
never observe a restricted L2 with incompatible CR0/CR4, since nested
VM-Enter from L1 should have failed.

And if KVM does observe an active, restricted L2 with incompatible state,
e.g. due to a KVM bug, fudging CR0/CR4 instead of letting VM-Enter fail
does more harm than good, as KVM will often neglect to undo the side
effects, e.g. won't clear rmode.vm86_active on nested VM-Exit, and thus
the damage can easily spill over to L1. On the other hand, letting
VM-Enter fail due to bad guest state is more likely to contain the damage
to L2 as KVM relies on hardware to perform most guest state consistency
checks, i.e. KVM needs to be able to reflect a failed nested VM-Enter into
L1 irrespective of (un)restricted guest behavior.

Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Fixes: bddd82d19e2e ("KVM: nVMX: KVM needs to unset "unrestricted guest" VM-execution control in vmcs02 if vmcs12 doesn't set it")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid

Reject KVM_SET_SREGS{2} with -EINVAL if the incoming CR0 is invalid,
e.g. due to setting bits 63:32, illegal combinations, or to a value that
isn't allowed in VMX (non-)root mode. The VMX checks in particular are
"fun" as failure to disallow Real Mode for an L2 that is configured with
unrestricted guest disabled, when KVM itself has unrestricted guest
enabled, will result in KVM forcing VM86 mode to virtual Real Mode for
L2, but then fail to unwind the related metadata when synthesizing a
nested VM-Exit back to L1 (which has unrestricted guest enabled).

Opportunistically fix a benign typo in the prototype for is_valid_cr4().

Cc: stable@vger.kernel.org
Reported-by: syzbot+5feef0b9ee9c8e9e5689@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000f316b705fdf6e2b4@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Revert "debugfs, coccinelle: check for obsolete DEFINE_SIMPLE_ATTRIBUTE() usage"

Remove coccinelle's recommendation to use DEFINE_DEBUGFS_ATTRIBUTE()
instead of DEFINE_SIMPLE_ATTRIBUTE(). Regardless of whether or not the
"significant overhead" incurred by debugfs_create_file() is actually
meaningful, warnings from the script have led to a rash of low-quality
patches that have sowed confusion and consumed maintainer time for little
to no benefit. There have been no less than four attempts to "fix" KVM,
and a quick search on lore shows that KVM is not alone.

This reverts commit 5103068eaca290f890a30aae70085fac44cecaf6.

Link: https://lore.kernel.org/all/87tu2nbnz3.fsf@mpe.ellerman.id.au
Link: https://lore.kernel.org/all/c0b98151-16b6-6d8f-1765-0f7d46682d60@redhat.com
Link: https://lkml.kernel.org/r/20230706072954.4881-1-duminjie%40vivo.com
Link: https://lore.kernel.org/all/Y2FsbufV00jbyF0B@google.com
Link: https://lore.kernel.org/all/Y2ENJJ1YiSg5oHiy@orome
Link: https://lore.kernel.org/all/7560b350e7b23786ce712118a9a504356ff1cca4.camel@kernel.org
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230726202920.507756-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Verify stats fd is usable after VM fd has been closed

Verify that VM and vCPU binary stats files are usable even after userspace
has put its last direct reference to the VM. This is a regression test
for a UAF bug where KVM didn't gift the stats files a reference to the VM.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-8-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Verify stats fd can be dup()'d and read

Expand the binary stats test to verify that a stats fd can be dup()'d
and read, to (very) roughly simulate userspace passing around the file.
Adding the dup() test is primarily an intermediate step towards verifying
that userspace can read VM/vCPU stats before _and_ after userspace closes
its copy of the VM fd; the dup() test itself is only mildly interesting.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-7-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Verify userspace can create "redundant" binary stats files

Verify that KVM doesn't artificially limit KVM_GET_STATS_FD to a single
file per VM/vCPU. There's no known use case for getting multiple stats
fds, but it should work, and more importantly creating multiple files will
make it easier to test that KVM correct manages VM refcounts for stats
files.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Explicitly free vcpus array in binary stats test

Explicitly free the all-encompassing vcpus array in the binary stats test
so that the test is consistent with respect to freeing all dynamically
allocated resources (versus letting them be freed on exit).

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-5-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Clean up stats fd in common stats_test() helper

Move the stats fd cleanup code into stats_test() and drop the
superfluous vm_stats_test() and vcpu_stats_test() helpers in order to
decouple creation of the stats file from consuming/testing the file
(deduping code is a bonus). This will make it easier to test various
edge cases related to stats, e.g. that userspace can dup() a stats fd,
that userspace can have multiple stats files for a singleVM/vCPU, etc.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: selftests: Use pread() to read binary stats header

Use pread() with an explicit offset when reading the header and the header
name for a binary stats fd so that the common helper and the binary stats
test don't subtly rely on the file effectively being untouched, e.g. to
allow multiple reads of the header, name, etc.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230711230131.648752-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: Grab a reference to KVM for VM and vCPU stats file descriptors

Grab a reference to KVM prior to installing VM and vCPU stats file
descriptors to ensure the underlying VM and vCPU objects are not freed
until the last reference to any and all stats fds are dropped.

Note, the stats paths manually invoke fd_install() and so don't need to
grab a reference before creating the file.

Fixes: ce55c049459c ("KVM: stats: Support binary stats retrieval for a VCPU")
Fixes: fcfe1baeddbf ("KVM: stats: Support binary stats retrieval for a VM")
Reported-by: Zheng Zhang <zheng.zhang@email.ucr.edu>
Closes: https://lore.kernel.org/all/CAC_GQSr3xzZaeZt85k_RCBd5kfiOve8qXo7a81Cq53LuVQ5r=Q@mail.gmail.com
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Message-Id: <20230711230131.648752-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

selftests/rseq: Play nice with binaries statically linked against glibc 2.35+

To allow running rseq and KVM's rseq selftests as statically linked
binaries, initialize the various "trampoline" pointers to point directly
at the expect glibc symbols, and skip the dlysm() lookups if the rseq
size is non-zero, i.e. the binary is statically linked *and* the libc
registered its own rseq.

Define weak versions of the symbols so as not to break linking against
libc versions that don't support rseq in any capacity.

The KVM selftests in particular are often statically linked so that they
can be run on targets with very limited runtime environments, i.e. test
machines.

Fixes: 233e667e1ae3 ("selftests/rseq: Uplift rseq selftests for compatibility with glibc-2.35")
Cc: Aaron Lewis <aaronlewis@google.com>
Cc: kvm@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721223352.2333911-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Revert "KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid"

Now that handle_fastpath_set_msr_irqoff() acquires kvm->srcu, i.e. allows
dereferencing memslots during WRMSR emulation, drop the requirement that
"next RIP" is valid. In hindsight, acquiring kvm->srcu would have been a
better fix than avoiding the pastpath, but at the time it was thought that
accessing SRCU-protected data in the fastpath was a one-off edge case.

This reverts commit 5c30e8101e8d5d020b1d7119117889756a6ed713.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721224337.2335137-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: Acquire SRCU read lock when handling fastpath MSR writes

Temporarily acquire kvm->srcu for read when potentially emulating WRMSR in
the VM-Exit fastpath handler, as several of the common helpers used during
emulation expect the caller to provide SRCU protection.  E.g. if the guest
is counting instructions retired, KVM will query the PMU event filter when
stepping over the WRMSR.

  dump_stack+0x85/0xdf
  lockdep_rcu_suspicious+0x109/0x120
  pmc_event_is_allowed+0x165/0x170
  kvm_pmu_trigger_event+0xa5/0x190
  handle_fastpath_set_msr_irqoff+0xca/0x1e0
  svm_vcpu_run+0x5c3/0x7b0 [kvm_amd]
  vcpu_enter_guest+0x2108/0x2580

Alternatively, check_pmu_event_filter() could acquire kvm->srcu, but this
isn't the first bug of this nature, e.g. see commit 5c30e8101e8d ("KVM:
SVM: Skip WRMSR fastpath on VM-Exit if next RIP isn't valid").  Providing
protection for the entirety of WRMSR emulation will allow reverting the
aforementioned commit, and will avoid having to play whack-a-mole when new
uses of SRCU-protected structures are inevitably added in common emulation
helpers.

Fixes: dfdeda67ea2d ("KVM: x86/pmu: Prevent the PMU from counting disallowed events")
Reported-by: Greg Thelen <gthelen@google.com>
Reported-by: Aaron Lewis <aaronlewis@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721224337.2335137-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: VMX: Use vmread_error() to report VM-Fail in "goto" path

Use vmread_error() to report VM-Fail on VMREAD for the "asm goto" case,
now that trampoline case has yet another wrapper around vmread_error() to
play nice with instrumentation.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721235637.2345403-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: VMX: Make VMREAD error path play nice with noinstr

Mark vmread_error_trampoline() as noinstr, and add a second trampoline
for the CONFIG_CC_HAS_ASM_GOTO_OUTPUT=n case to enable instrumentation
when handling VM-Fail on VMREAD.  VMREAD is used in various noinstr
flows, e.g. immediately after VM-Exit, and objtool rightly complains that
the call to the error trampoline leaves a no-instrumentation section
without annotating that it's safe to do so.

  vmlinux.o: warning: objtool: vmx_vcpu_enter_exit+0xc9:
  call to vmread_error_trampoline() leaves .noinstr.text section

Note, strictly speaking, enabling instrumentation in the VM-Fail path
isn't exactly safe, but if VMREAD fails the kernel/system is likely hosed
anyways, and logging that there is a fatal error is more important than
*maybe* encountering slightly unsafe instrumentation.

Reported-by: Su Hui <suhui@nfschina.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230721235637.2345403-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86/irq: Conditionally register IRQ bypass consumer again

As was attempted commit 14717e203186 ("kvm: Conditionally register IRQ
bypass consumer"): "if we don't support a mechanism for bypassing IRQs,
don't register as a consumer. Initially this applied to AMD processors,
but when AVIC support was implemented for assigned devices,
kvm_arch_has_irq_bypass() was always returning true.

We can still skip registering the consumer where enable_apicv
or posted-interrupts capability is unsupported or globally disabled.
This eliminates meaningless dev_info()s when the connect fails
between producer and consumer", such as on Linux hosts where enable_apicv
or posted-interrupts capability is unsupported or globally disabled.

Cc: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Yong He <alexyonghe@tencent.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217379
Signed-off-by: Like Xu <likexu@tencent.com>
Message-Id: <20230724111236.76570-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: X86: Use GFP_KERNEL_ACCOUNT for pid_table in ipiv

The pid_table of ipiv is the persistent memory allocated by
per-vcpu, which should be counted into the memory cgroup.

Signed-off-by: Peng Hao <flyingpeng@tencent.com>
Message-Id: <CAPm50aLxCQ3TQP2Lhc0PX3y00iTRg+mniLBqNDOC=t9CLxMwwA@mail.gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: check the kvm_cpu_get_interrupt result before using it

The code was blindly assuming that kvm_cpu_get_interrupt never returns -1
when there is a pending interrupt.

While this should be true, a bug in KVM can still cause this.

If -1 is returned, the code before this patch was converting it to 0xFF,
and 0xFF interrupt was injected to the guest, which results in an issue
which was hard to debug.

Add WARN_ON_ONCE to catch this case and skip the injection
if this happens again.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20230726135945.260841-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: VMX: set irr_pending in kvm_apic_update_irr

When the APICv is inhibited, the irr_pending optimization is used.

Therefore, when kvm_apic_update_irr sets bits in the IRR,
it must set irr_pending to true as well.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20230726135945.260841-3-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

KVM: x86: VMX: __kvm_apic_update_irr must update the IRR atomically

If APICv is inhibited, then IPIs from peer vCPUs are done by
atomically setting bits in IRR.

This means, that when __kvm_apic_update_irr copies PIR to IRR,
it has to modify IRR atomically as well.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20230726135945.260841-2-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

kprobes: Prohibit probing on CFI preamble symbol

Do not allow to probe on "__cfi_" or "__pfx_" started symbol, because those
are used for CFI and not executed. Probing it will break the CFI.

Link: https://lore.kernel.org/all/168904024679.116016.18089228029322008512.stgit@devnote2/
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Merge tag 'ata-6.5-rc4' of git://git./linux/kernel/git/dlemoal/libata

Pull ata fixes from Damien Le Moal:

- Fix error message output in the pata_arasan_cf driver (Minjie)

- Fix invalid error return in the pata_octeon_cf driver initialization
   (Yingliang)

- Fix a compilation warning due to a missing static function
   declaration in the pata_ns87415 driver (Arnd)

- Fix the condition evaluating when to fetch sense data for successful
   completions, which should be done only when command duration limits
   are being used (Niklas)

* tag 'ata-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
  ata: libata-core: fix when to fetch sense data for successful commands
  ata: pata_ns87415: mark ns87560_tf_read static
  ata: pata_octeon_cf: fix error return code in octeon_cf_probe()
  ata: pata_arasan_cf: Use dev_err_probe() instead dev_err() in data_xfer()

tracing: Fix warning in trace_buffered_event_disable()

Warning happened in trace_buffered_event_disable() at
  WARN_ON_ONCE(!trace_buffered_event_ref)

  Call Trace:
   ? __warn+0xa5/0x1b0
   ? trace_buffered_event_disable+0x189/0x1b0
   __ftrace_event_enable_disable+0x19e/0x3e0
   free_probe_data+0x3b/0xa0
   unregister_ftrace_function_probe_func+0x6b8/0x800
   event_enable_func+0x2f0/0x3d0
   ftrace_process_regex.isra.0+0x12d/0x1b0
   ftrace_filter_write+0xe6/0x140
   vfs_write+0x1c9/0x6f0
   [...]

The cause of the warning is in __ftrace_event_enable_disable(),
trace_buffered_event_enable() was called once while
trace_buffered_event_disable() was called twice.
Reproduction script show as below, for analysis, see the comments:
```
#!/bin/bash

cd /sys/kernel/tracing/

# 1. Register a 'disable_event' command, then:
#    1) SOFT_DISABLED_BIT was set;
#    2) trace_buffered_event_enable() was called first time;
echo 'cmdline_proc_show:disable_event:initcall:initcall_finish' > \
     set_ftrace_filter

# 2. Enable the event registered, then:
#    1) SOFT_DISABLED_BIT was cleared;
#    2) trace_buffered_event_disable() was called first time;
echo 1 > events/initcall/initcall_finish/enable

# 3. Try to call into cmdline_proc_show(), then SOFT_DISABLED_BIT was
#    set again!!!
cat /proc/cmdline

# 4. Unregister the 'disable_event' command, then:
#    1) SOFT_DISABLED_BIT was cleared again;
#    2) trace_buffered_event_disable() was called second time!!!
echo '!cmdline_proc_show:disable_event:initcall:initcall_finish' > \
     set_ftrace_filter
```

To fix it, IIUC, we can change to call trace_buffered_event_enable() at
fist time soft-mode enabled, and call trace_buffered_event_disable() at
last time soft-mode disabled.

Link: https://lore.kernel.org/linux-trace-kernel/20230726095804.920457-1-zhengyejian1@huawei.com
Cc: <mhiramat@kernel.org>
Fixes: 0fc1b09ff1ff ("tracing: Use temp buffer when filtering events")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Merge tag 'mm-hotfixes-stable-2023-07-28-15-52' of git://git./linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
"11 hotfixes. Five are cc:stable and the remainder address post-6.4
  issues or aren't considered serious enough to justify backporting"

* tag 'mm-hotfixes-stable-2023-07-28-15-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/memory-failure: fix hardware poison check in unpoison_memory()
  proc/vmcore: fix signedness bug in read_from_oldmem()
  mailmap: update remaining active codeaurora.org email addresses
  mm: lock VMA in dup_anon_vma() before setting ->anon_vma
  mm: fix memory ordering for mm_lock_seq and vm_lock_seq
  scripts/spelling.txt: remove 'thead' as a typo
  mm/pagewalk: fix EFI_PGT_DUMP of espfix area
  shmem: minor fixes to splice-read implementation
  tmpfs: fix Documentation of noswap and huge mount options
  Revert "um: Use swap() to make code cleaner"
  mm/damon/core-test: initialise context before test in damon_test_set_attrs()

Merge tag 'thermal-6.5-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
"Constify thermal_zone_device_register() parameters, which was omitted
  by mistake, and fix a double free on thermal zone unregistration in
  the generic DT thermal driver (Ahmad Fatoum)"

* tag 'thermal-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: of: fix double-free on unregistration
  thermal: core: constify params in thermal_zone_device_register

Merge tag 'pm-6.5-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
"Fix the arming of wakeup IRQs in the generic wakeup IRQ code
  (wakeirq), drop unused functions from it and fix up a driver using it
  and trying to work around the IRQ arming issue in a questionable way
  (Johan Hovold)"

* tag 'pm-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  serial: qcom-geni: drop bogus runtime pm state update
  PM: sleep: wakeirq: drop unused enable helpers
  PM: sleep: wakeirq: fix wake irq arming

Merge tag 'hwmon-for-v6.5-rc4' of git://git./linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

- k10temp: Display negative temperatures for industrial processors

- pmbus core: Fix deadlock, NULL pointer dereference, and chip enable
   detection

- nct7802: Do not display PECI1 temperature if disabled

- nct6775: Fix IN scaling factors and feature detection for
   NCT6798/6799

- oxp-sensors: Fix race condition during device attribute creation

- aquacomputer_d5next: Fix incorrect PWM value readout

* tag 'hwmon-for-v6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (k10temp) Enable AMD3255 Proc to show negative temperature
  hwmon: (pmbus_core) Fix Deadlock in pmbus_regulator_get_status
  hwmon: (pmbus_core) Fix NULL pointer dereference
  hwmon: (pmbus_core) Fix pmbus_is_enabled()
  hwmon: (nct7802) Fix for temp6 (PECI1) processed even if PECI1 disabled
  hwmon: (nct6775) Fix IN scaling factors for 6798/6799
  hwmon: (oxp-sensors) Move tt_toggle attribute to dev_groups
  hwmon: (aquacomputer_d5next) Fix incorrect PWM value readout
  hwmon: (nct6775) Fix register for nct6799

ftrace: Remove unused extern declarations

commit 6a9c981b1e96 ("ftrace: Remove unused function ftrace_arch_read_dyn_info()")
left ftrace_arch_read_dyn_info() extern declaration.
And commit 1d74f2a0f64b ("ftrace: remove ftrace_ip_converted()")
leave ftrace_ip_converted() declaration.

Link: https://lore.kernel.org/linux-trace-kernel/20230725134808.9716-1-yuehaibing@huawei.com
Cc: <mhiramat@kernel.org>
Cc: <mark.rutland@arm.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

tracing: Fix kernel-doc warnings in trace_seq.c

Fix kernel-doc warning:

kernel/trace/trace_seq.c:142: warning: Function parameter or member
'args' not described in 'trace_seq_vprintf'

Link: https://lkml.kernel.org/r/20230724140827.1023266-5-cuigaosheng1@huawei.com
Cc: <mhiramat@kernel.org>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

tracing: Fix kernel-doc warnings in trace_events_trigger.c

Fix kernel-doc warnings:

kernel/trace/trace_events_trigger.c:59: warning: Function parameter
or member 'buffer' not described in 'event_triggers_call'
kernel/trace/trace_events_trigger.c:59: warning: Function parameter
or member 'event' not described in 'event_triggers_call'

Link: https://lkml.kernel.org/r/20230724140827.1023266-4-cuigaosheng1@huawei.com
Cc: <mhiramat@kernel.org>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

tracing/synthetic: Fix kernel-doc warnings in trace_events_synth.c

Fix kernel-doc warning:

kernel/trace/trace_events_synth.c:1257: warning: Function parameter
or member 'mod' not described in 'synth_event_gen_cmd_array_start'

Link: https://lkml.kernel.org/r/20230724140827.1023266-3-cuigaosheng1@huawei.com
Cc: <mhiramat@kernel.org>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

ring-buffer: Fix kernel-doc warnings in ring_buffer.c

Fix kernel-doc warnings:

kernel/trace/ring_buffer.c:954: warning: Function parameter or
member 'cpu' not described in 'ring_buffer_wake_waiters'
kernel/trace/ring_buffer.c:3383: warning: Excess function parameter
'event' description in 'ring_buffer_unlock_commit'
kernel/trace/ring_buffer.c:5359: warning: Excess function parameter
'cpu' description in 'ring_buffer_reset_online_cpus'

Link: https://lkml.kernel.org/r/20230724140827.1023266-2-cuigaosheng1@huawei.com
Cc: <mhiramat@kernel.org>
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
"Several smaller driver fixes and a core RDMA CM regression fix:

   - Fix improperly accepting flags from userspace in mlx4

   - Add missing DMA barriers for irdma

   - Fix two kcsan warnings in irdma

   - Report the correct CQ op code to userspace in irdma

   - Report the correct MW bind error code for irdma

   - Load the destination address in RDMA CM to resolve a recent
     regression

   - Fix a QP regression in mthca

   - Remove a race processing completions in bnxt_re resulting in a
     crash

   - Fix driver unloading races with interrupts and tasklets in bnxt_re

   - Fix missing error unwind in rxe"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/irdma: Report correct WC error
  RDMA/irdma: Fix op_type reporting in CQEs
  RDMA/rxe: Fix an error handling path in rxe_bind_mw()
  RDMA/bnxt_re: Fix hang during driver unload
  RDMA/bnxt_re: Prevent handling any completions after qp destroy
  RDMA/mthca: Fix crash when polling CQ for shared QPs
  RDMA/core: Update CMA destination address on rdma_resolve_addr
  RDMA/irdma: Fix data race on CQP request done
  RDMA/irdma: Fix data race on CQP completion stats
  RDMA/irdma: Add missing read barriers
  RDMA/mlx4: Make check for invalid flags stricter

Merge tag 'tpmdd-v6.5-rc4' of git://git./linux/kernel/git/jarkko/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen:
"I picked up three small scale updates that I think would improve the
  quality of the release"

* tag 'tpmdd-v6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm_tis: Explicitly check for error code
  tpm: Switch i2c drivers back to use .probe()
  security: keys: perform capable check only on privileged operations

ring-buffer: Fix wrong stat of cpu_buffer->read

When pages are removed in rb_remove_pages(), 'cpu_buffer->read' is set
to 0 in order to make sure any read iterators reset themselves. However,
this will mess 'entries' stating, see following steps:

  # cd /sys/kernel/tracing/
  # 1. Enlarge ring buffer prepare for later reducing:
  # echo 20 > per_cpu/cpu0/buffer_size_kb
  # 2. Write a log into ring buffer of cpu0:
  # taskset -c 0 echo "hello1" > trace_marker
  # 3. Read the log:
  # cat per_cpu/cpu0/trace_pipe
       <...>-332     [000] .....    62.406844: tracing_mark_write: hello1
  # 4. Stop reading and see the stats, now 0 entries, and 1 event readed:
  # cat per_cpu/cpu0/stats
   entries: 0
   [...]
   read events: 1
  # 5. Reduce the ring buffer
  # echo 7 > per_cpu/cpu0/buffer_size_kb
  # 6. Now entries became unexpected 1 because actually no entries!!!
  # cat per_cpu/cpu0/stats
   entries: 1
   [...]
   read events: 0

To fix it, introduce 'page_removed' field to count total removed pages
since last reset, then use it to let read iterators reset themselves
instead of changing the 'read' pointer.

Link: https://lore.kernel.org/linux-trace-kernel/20230724054040.3489499-1-zhengyejian1@huawei.com
Cc: <mhiramat@kernel.org>
Cc: <vnagarnaik@google.com>
Fixes: 83f40318dab0 ("ring-buffer: Make removal of ring buffer pages atomic")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

- A couple of SME updates for recent fixes (one of which went to
   stable): reverting the flushing of the SME hardware state along with
   the thread flushing and making sure we have the correct vector length
   before reallocating.

- An ACPI/IORT fix to avoid skipping ID mappings whose "number of IDs"
   is 0 (the spec reports the number of IDs in the mapping range minus
   1).

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  ACPI/IORT: Remove erroneous id_count check in iort_node_get_rmr_info()
  arm64/sme: Set new vector length before reallocating
  arm64/fpsimd: Don't flush SME register hardware state along with thread

Merge tag 'for-linus-6.5a-rc4-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

- A fix for a performance problem in QubesOS, adding a way to drain the
   queue of grants experiencing delayed unmaps faster

- A patch enabling the use of static event channels from user mode,
   which was omitted when introducing supporting static event channels

- A fix for a problem where Xen related code didn't check properly for
   running in a Xen environment, resulting in a WARN splat

* tag 'for-linus-6.5a-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: speed up grant-table reclaim
  xen/evtchn: Introduce new IOCTL to bind static evtchn
  xenbus: check xen_domain in xenbus_probe_initcall

tpm_tis: Explicitly check for error code

recv_data either returns the number of received bytes, or a negative value
representing an error code. Adding the return value directly to the total
number of received bytes therefore looks a little weird, since it might add
a negative error code to a sum of bytes.

The following check for size < expected usually makes the function return
ETIME in that case, so it does not cause too many problems in practice. But
to make the code look cleaner and because the caller might still be
interested in the original error code, explicitly check for the presence of
an error code and pass that through.

Cc: stable@vger.kernel.org
Fixes: cb5354253af2 ("[PATCH] tpm: spacing cleanups 2")
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

tpm: Switch i2c drivers back to use .probe()

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter")
convert back to (the new) .probe() to be able to eventually drop
.probe_new() from struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

security: keys: perform capable check only on privileged operations

If the current task fails the check for the queried capability via
`capable(CAP_SYS_ADMIN)` LSMs like SELinux generate a denial message.
Issuing such denial messages unnecessarily can lead to a policy author
granting more privileges to a subject than needed to silence them.

Reorder CAP_SYS_ADMIN checks after the check whether the operation is
actually privileged.

Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>

Merge tag 'ceph-for-6.5-rc4' of https://github.com/ceph/ceph-client

Pull ceph fixes from Ilya Dryomov:
"A patch to reduce the potential for erroneous RBD exclusive lock
  blocklisting (fencing) with a couple of prerequisites and a fixup to
  prevent metrics from being sent to the MDS even just once after that
  has been disabled by the user. All marked for stable"

* tag 'ceph-for-6.5-rc4' of https://github.com/ceph/ceph-client:
  rbd: retrieve and check lock owner twice before blocklisting
  rbd: harden get_lock_owner_info() a bit
  rbd: make get_lock_owner_info() return a single locker or NULL
  ceph: never send metrics if disable_send_metrics is set

Merge tag '9p-fixes-6.5-rc3' of git://git./linux/kernel/git/ericvh/v9fs

Pull 9p fixes from Eric Van Hensbergen:
"Misc set of fixes for 9p.

  Most of these clean up warnings we've gotten out of compilation tools,
  but several of them were from inspection while hunting down a couple
  of regressions.

  The most important one is 75b396821cb7 ("fs/9p: remove unnecessary and
  overrestrictive check") which caused a regression for some folks by
  restricting mmap in any case where writeback caches weren't enabled.

  Most of the other bugs caught via inspection were type mismatches"

* tag '9p-fixes-6.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  fs/9p: Remove unused extern declaration
  9p: remove dead stores (variable set again without being read)
  9p: virtio: skip incrementing unused variable
  9p: virtio: make sure 'offs' is initialized in zc_request
  9p: virtio: fix unlikely null pointer deref in handle_rerror
  9p: fix ignored return value in v9fs_dir_release
  fs/9p: remove unnecessary invalidate_inode_pages2
  fs/9p: fix type mismatch in file cache mode helper
  fs/9p: fix typo in comparison logic for cache mode
  fs/9p: remove unnecessary and overrestrictive check
  fs/9p: Fix a datatype used with V9FS_DIRECT_IO

Merge tag 'block-6.5-2023-07-28' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
"A few fixes that should go into the current kernel release, mainly:

   - Set of fixes for dasd (Stefan)

   - Handle interruptible waits returning because of a signal for ublk
     (Ming)"

* tag 'block-6.5-2023-07-28' of git://git.kernel.dk/linux:
  ublk: return -EINTR if breaking from waiting for existed users in DEL_DEV
  ublk: fail to recover device if queue setup is interrupted
  ublk: fail to start device if queue setup is interrupted
  block: Fix a source code comment in include/uapi/linux/blkzoned.h
  s390/dasd: print copy pair message only for the correct error
  s390/dasd: fix hanging device after request requeue
  s390/dasd: use correct number of retries for ERP requests
  s390/dasd: fix hanging device after quiesce/resume

Merge tag 'io_uring-6.5-2023-07-28' of git://git.kernel.dk/linux

Pull io_uring fix from Jens Axboe:
"Just a single tweak to a patch from last week, to avoid having idle
cqring waits be attributed as iowait"

* tag 'io_uring-6.5-2023-07-28' of git://git.kernel.dk/linux:
io_uring: gate iowait schedule on having pending requests

Merge tag 'for-linus-iommufd' of git://git./linux/kernel/git/jgg/iommufd

Pull iommufd fixes from Jason Gunthorpe:
"Two user triggerable problems:

   - Syzkaller found a way to trigger a WARN_ON and leak memory by
     racing destroy with other actions

   - There is still a bug in the "batch carry" stuff that gets invoked
     for complex cases with accesses and unmapping of huge pages. The
     test suite found this (triggers rarely)"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Set end correctly when doing batch carry
  iommufd: IOMMUFD_DESTROY should not increase the refcount

Merge tag 'for-6.5/dm-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

- Fix double free on memory allocation failure in DM integrity target's
   integrity_recalc()

- Fix locking in DM raid target's raid_ctr() and around call to
   md_stop()

- Fix DM cache target's cleaner policy to always allow work to be
   queued for writeback; even if cache isn't idle.

* tag 'for-6.5/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm cache policy smq: ensure IO doesn't prevent cleaner policy progress
  dm raid: protect md_stop() with 'reconfig_mutex'
  dm raid: clean up four equivalent goto tags in raid_ctr()
  dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths
  dm integrity: fix double free on memory allocation failure

Merge tag 'sound-6.5-rc4' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
"A collection of device-specific small fixes such as ASoC Realtek codec
  fixes for PM issues, ASoC nau8821 quirk additions, and usual HD- and
  USB-audio quirks"

* tag 'sound-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Support ASUS G713PV laptop
  ALSA: usb-audio: Update for native DSD support quirks
  ALSA: usb-audio: Add quirk for Microsoft Modern Wireless Headset
  ALSA: hda/relatek: Enable Mute LED on HP 250 G8
  ASoC: atmel: Fix the 8K sample parameter in I2SC master
  ASoC: rt711-sdca: fix for JD event handling in ClockStop Mode0
  ASoC: rt711: fix for JD event handling in ClockStop Mode0
  ASoC: rt722-sdca: fix for JD event handling in ClockStop Mode0
  ASoC: rt712-sdca: fix for JD event handling in ClockStop Mode0
  ASoc: codecs: ES8316: Fix DMIC config
  ASoC: rt5682-sdw: fix for JD event handling in ClockStop Mode0
  ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register
  ASoC: nau8821: Add DMI quirk mechanism for active-high jack-detect
  ASoC: da7219: Check for failure reading AAD IRQ events
  ASoC: da7219: Flush pending AAD IRQ when suspending
  ALSA: seq: remove redundant unsigned comparison to zero
  ASoC: fsl_spdif: Silence output on stop

Merge tag 'drm-fixes-2023-07-28' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
"Regular scheduled fixes, msm and amdgpu leading the way, with some
  i915 and a single misc fbdev, all seems fine.

  fbdev:
   - remove unused function

  amdgpu:
   - gfxhub partition fix
   - Fix error handling in psp_sw_init()
   - SMU13 fix
   - DCN 3.1 fix
   - DCN 3.2 fix
   - Fix for display PHY programming sequence
   - DP MST error handling fix
   - GFX 9.4.3 fix

  amdkfd:
   - GFX11 trap handling fix

  i915:
   - Use shmem for dpt objects
   - Fix an error handling path in igt_write_huge()

  msm:
   - display:
      - Fix to correct the UBWC programming for decoder version 4.3 seen
        on SM8550
      - Add the missing flush and fetch bits for DMA4 and DMA5 SSPPs.
      - Fix to drop the unused dpu_core_perf_data_bus_id enum from the
        code
      - Drop the unused dsi_phy_14nm_17mA_regulators from QCM 2290 DSI
        cfg.
   - gpu:
      - Fix warn splat for newer devices without revn
      - Remove name/revn for a690.. we shouldn't be populating these for
        newer devices, for consistency, but it slipped through review
      - Fix a6xx gpu snapshot BINDLESS_DATA size (was listed in bytes
        instead of dwords, causing AHB faults on a6xx gen4/a660-family)
      - Disallow submit with fence id 0"

* tag 'drm-fixes-2023-07-28' of git://anongit.freedesktop.org/drm/drm: (22 commits)
  drm/msm: Disallow submit with fence id 0
  drm/amdgpu: Restore HQD persistent state register
  drm/amd/display: Unlock on error path in dm_handle_mst_sideband_msg_ready_event()
  drm/amd/display: Exit idle optimizations before attempt to access PHY
  drm/amd/display: Don't apply FIFO resync W/A if rdivider = 0
  drm/amd/display: Guard DCN31 PHYD32CLK logic against chip family
  drm/amd/smu: use AverageGfxclkFrequency* to replace previous GFX Curr Clock
  drm/amd: Fix an error handling mistake in psp_sw_init()
  drm/amdgpu: Fix infinite loop in gfxhub_v1_2_xcc_gart_enable (v2)
  drm/amdkfd: fix trap handling work around for debugging
  drm/fb-helper: Remove unused inline function drm_fb_helper_defio_init()
  drm/i915: Fix an error handling path in igt_write_huge()
  drm/i915/dpt: Use shmem for dpt objects
  drm/msm: Fix hw_fence error path cleanup
  drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()
  drm/msm/adreno: Fix snapshot BINDLESS_DATA size
  drm/msm/a690: Remove revn and name
  drm/msm/adreno: Fix warn splat for devices without revn
  drm/msm/dsi: Drop unused regulators from QCM2290 14nm DSI PHY config
  drm/msm/dpu: drop enum dpu_core_perf_data_bus_id
  ...

Merge tag 'cxl-fixes-6.5-rc4' of git://git./linux/kernel/git/cxl/cxl

Pull cxl fixes from Vishal Verma:

- Update MAINTAINERS for cxl

- A few static analysis fixes

- Fix a Kconfig dependency for CONFIG_FW_LOADER

* tag 'cxl-fixes-6.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  tools/testing/cxl: Remove unused SZ_512G macro
  cxl/acpi: Return 'rc' instead of '0' in cxl_parse_cfmws()
  cxl/acpi: Fix a use-after-free in cxl_parse_cfmws()
  cxl: Update MAINTAINERS
  cxl/mem: Fix a double shift bug
  cxl: fix CONFIG_FW_LOADER dependency

Revert "mm,memblock: reset memblock.reserved to system init state to prevent UAF"

This reverts commit 9e46e4dcd9d6cd88342b028dbfa5f4fb7483d39c.

kbuild reports a warning in memblock_remove_region() because of a false
positive caused by partial reset of the memblock state.

Doing the full reset will remove the false positives, but will allow
late use of memblock_free() to go unnoticed, so it is better to revert
the offending commit.

   WARNING: CPU: 0 PID: 1 at mm/memblock.c:352 memblock_remove_region (kbuild/src/x86_64/mm/memblock.c:352 (discriminator 1))
   Modules linked in:
   CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.5.0-rc3-00001-g9e46e4dcd9d6 #2
   RIP: 0010:memblock_remove_region (kbuild/src/x86_64/mm/memblock.c:352 (discriminator 1))
   Call Trace:
     memblock_discard (kbuild/src/x86_64/mm/memblock.c:383)
     page_alloc_init_late (kbuild/src/x86_64/include/linux/find.h:208 kbuild/src/x86_64/include/linux/nodemask.h:266 kbuild/src/x86_64/mm/mm_init.c:2405)
     kernel_init_freeable (kbuild/src/x86_64/init/main.c:1325 kbuild/src/x86_64/init/main.c:1546)
     kernel_init (kbuild/src/x86_64/init/main.c:1439)
     ret_from_fork (kbuild/src/x86_64/arch/x86/kernel/process.c:145)
     ret_from_fork_asm (kbuild/src/x86_64/arch/x86/entry/entry_64.S:298)

Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202307271656.447aa17e-oliver.sang@intel.com
Signed-off-by: "Mike Rapoport (IBM)" <rppt@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/mempolicy: Take VMA lock before replacing policy

mbind() calls down into vma_replace_policy() without taking the per-VMA
locks, replaces the VMA's vma->vm_policy pointer, and frees the old
policy. That's bad; a concurrent page fault might still be using the
old policy (in vma_alloc_folio()), resulting in use-after-free.

Normally this will manifest as a use-after-free read first, but it can
result in memory corruption, including because vma_alloc_folio() can
call mpol_cond_put() on the freed policy, which conditionally changes
the policy's refcount member.

This bug is specific to CONFIG_NUMA, but it does also affect non-NUMA
systems as long as the kernel was built with CONFIG_NUMA.

Signed-off-by: Jann Horn <jannh@google.com>
Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Fixes: 5e31275cc997 ("mm: add per-VMA lock and helper functions to control it")
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ACPI/IORT: Remove erroneous id_count check in iort_node_get_rmr_info()

According to the ARM IORT specifications DEN 0049 issue E,
the "Number of IDs" field in the ID mapping format reports
the number of IDs in the mapping range minus one.

In iort_node_get_rmr_info(), we erroneously skip ID mappings
whose "Number of IDs" equal to 0, resulting in valid mapping
nodes with a single ID to map being skipped, which is wrong.

Fix iort_node_get_rmr_info() by removing the bogus id_count
check.

Fixes: 491cf4a6735a ("ACPI/IORT: Add support to retrieve IORT RMR reserved regions")
Signed-off-by: Guanghui Feng <guanghuifeng@linux.alibaba.com>
Cc: <stable@vger.kernel.org> # 6.0.x
Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1689593625-45213-1-git-send-email-guanghuifeng@linux.alibaba.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

LoongArch: Cleanup __builtin_constant_p() checking for cpu_has_*

In the current configuration, cpu_has_lsx and cpu_has_lasx cannot be
constants. So cleanup the __builtin_constant_p() checking to reduce the
complexity.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: BPF: Fix check condition to call lu32id in move_imm()

As the code comment says, the initial aim is to reduce one instruction
in some corner cases, if bit[51:31] is all 0 or all 1, no need to call
lu32id. That is to say, it should call lu32id only if bit[51:31] is not
all 0 and not all 1. The current code always call lu32id, the result is
right but the logic is unexpected and wrong, fix it.

Cc: stable@vger.kernel.org # 6.1
Fixes: 5dc615520c4d ("LoongArch: Add BPF JIT support")
Reported-by: Colin King (gmail) <colin.i.king@gmail.com>
Closes: https://lore.kernel.org/all/bcf97046-e336-712a-ac68-7fd194f2953e@gmail.com/
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: BPF: Enable bpf_probe_read{, str}() on LoongArch

Currently nettrace does not work on LoongArch due to missing
bpf_probe_read{,str}() support, with the error message:

ERROR: failed to load kprobe-based eBPF
ERROR: failed to load kprobe-based bpf

According to commit 0ebeea8ca8a4d1d ("bpf: Restrict bpf_probe_read{,
str}() only to archs where they work"), we only need to select
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE to add said support,
because LoongArch does have non-overlapping address ranges for kernel
and userspace.

Cc: stable@vger.kernel.org # 6.1
Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: Fix return value underflow in exception path

This patch fixes an underflow issue in the return value within the
exception path, specifically at .Llt8 when the remaining length is less
than 8 bytes.

Cc: stable@vger.kernel.org
Fixes: 8941e93ca590 ("LoongArch: Optimize memory ops (memset/memcpy/memmove)")
Reported-by: Weihao Li <liweihao@loongson.cn>
Signed-off-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: Fix CMDLINE_EXTEND and CMDLINE_BOOTLOADER handling

On FDT systems these command line processing are already taken care of
by early_init_dt_scan_chosen(). Add similar handling to the ACPI (non-
FDT) code path to allow these config options to work for ACPI (non-FDT)
systems too.

Signed-off-by: Zhihong Dong <donmor3000@hotmail.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: Fix module relocation error with binutils 2.41

Binutils 2.41 enables linker relaxation by default, but the kernel
module loader doesn't support that, so just disable it. Otherwise we
get such an error when loading modules:

"Unknown relocation type 102"

As an alternative, we could add linker relaxation support in the kernel
module loader. But it is relatively large complexity that may or may not
bring a similar gain, and we don't really want to include this linker
pass in the kernel.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

LoongArch: Only fiddle with CHECKFLAGS if `need-compiler'

This is a port of commit 4fe4a6374c4db9ae2b ("MIPS: Only fiddle with
CHECKFLAGS if `need-compiler'") to LoongArch.

We have originally guarded fiddling with CHECKFLAGS in our arch Makefile
by checking for the CONFIG_LOONGARCH variable, not set for targets such
as `distclean', etc. that neither include `.config' nor use the compiler.

Starting from commit 805b2e1d427aab4 ("kbuild: include Makefile.compiler
only when compiler is needed") we have had a generic `need-compiler'
variable explicitly telling us if the compiler will be used and thus its
capabilities need to be checked and expressed in the form of compilation
flags. If this variable is not set, then `make' functions such as
`cc-option' are undefined, causing all kinds of weirdness to happen if
we expect specific results to be returned.

It doesn't cause problems on LoongArch now. But as a guard we replace
the check for CONFIG_LOONGARCH with one for `need-compiler' instead, so
as to prevent the compiler from being ever called for CHECKFLAGS when
not needed.

Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

ata: libata-core: fix when to fetch sense data for successful commands

The condition to fetch sense data was supposed to be:
ATA_SENSE set AND either
1) Command was NCQ and ATA_DFLAG_CDL_ENABLED flag set (flag
ATA_DFLAG_CDL_ENABLED will only be set if the Successful NCQ command
sense data supported bit is set); or
2) Command was non-NCQ and regular sense data reporting is enabled.

However the check in 2) accidentally had the negation at the wrong place,
causing it to try to fetch sense data if it was a non-NCQ command _or_
if regular sense data reporting was _not_ enabled.

Fix this by removing the extra parentheses that should not be there,
such that only the correct return (ata_is_ncq()) is negated.

Fixes: 18bd7718b5c4 ("scsi: ata: libata: Handle completion of CDL commands using policy 0xD")
Reported-by: Borislav Petkov <bp@alien8.de>
Closes: https://lore.kernel.org/linux-ide/20230722155621.GIZLv8JbURKzHtKvQE@fat_crate.local/
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Tested-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

Merge tag 'drm-msm-fixes-2023-07-27' of https://gitlab.freedesktop.org/drm/msm into drm-fixes

Fixes for v6.5-rc4

Display:
+ Fix to correct the UBWC programming for decoder version 4.3 seen
  on SM8550
+ Add the missing flush and fetch bits for DMA4 and DMA5 SSPPs.
+ Fix to drop the unused dpu_core_perf_data_bus_id enum from the code
+ Drop the unused dsi_phy_14nm_17mA_regulators from QCM 2290 DSI cfg.

GPU:
+ Fix warn splat for newer devices without revn
+ Remove name/revn for a690.. we shouldn't be populating these for
  newer devices, for consistency, but it slipped through review
+ Fix a6xx gpu snapshot BINDLESS_DATA size (was listed in bytes
  instead of dwords, causing AHB faults on a6xx gen4/a660-family)
+ Disallow submit with fence id 0

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs9MwCSfiyv8i7yWAsJKYEzCDyzaTx=ujX80Y23rZd9RA@mail.gmail.com

Merge tag 'amd-drm-fixes-6.5-2023-07-26' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.5-2023-07-26:

amdgpu:
- gfxhub partition fix
- Fix error handling in psp_sw_init()
- SMU13 fix
- DCN 3.1 fix
- DCN 3.2 fix
- Fix for display PHY programming sequence
- DP MST error handling fix
- GFX 9.4.3 fix

amdkfd:
- GFX11 trap handling fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230726184936.7812-1-alexander.deucher@amd.com

Merge tag 'drm-intel-fixes-2023-07-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Use shmem for dpt objects [dpt] (Radhakrishna Sripada)
- Fix an error handling path in igt_write_huge() (Christophe JAILLET)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZMI4Mtom7pDhLB7M@tursulin-desk

Merge tag 'drm-misc-fixes-2023-07-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A single patch to remove an unused function.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/dqvxednqyab5t7gvwvcq72x6yu7ug5gusmhpgs3kq6z7pf3co6@ofr6s7547gbe

ata: pata_ns87415: mark ns87560_tf_read static

The global function triggers a warning because of the missing prototype

drivers/ata/pata_ns87415.c:263:6: warning: no previous prototype for 'ns87560_tf_read' [-Wmissing-prototypes]
263 | void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)

There are no other references to this, so just make it static.

Fixes: c4b5b7b6c4423 ("pata_ns87415: Initial cut at 87415/87560 IDE support")
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>

mm/memory-failure: fix hardware poison check in unpoison_memory()

It was pointed out[1] that using folio_test_hwpoison() is wrong as we need
to check the indiviual page that has poison. folio_test_hwpoison() only
checks the head page so go back to using PageHWPoison().

User-visible effects include existing hwpoison-inject tests possibly
failing as unpoisoning a single subpage could lead to unpoisoning an
entire folio. Memory unpoisoning could also not work as expected as
the function will break early due to only checking the head page and
not the actually poisoned subpage.

[1]: https://lore.kernel.org/lkml/ZLIbZygG7LqSI9xe@casper.infradead.org/

Link: https://lkml.kernel.org/r/20230717181812.167757-1-sidhartha.kumar@oracle.com
Fixes: a6fddef49eef ("mm/memory-failure: convert unpoison_memory() to folios")
Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Reported-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

proc/vmcore: fix signedness bug in read_from_oldmem()

The bug is the error handling:

if (tmp < nr_bytes) {

"tmp" can hold negative error codes but because "nr_bytes" is type size_t
the negative error codes are treated as very high positive values
(success). Fix this by changing "nr_bytes" to type ssize_t. The
"nr_bytes" variable is used to store values between 1 and PAGE_SIZE and
they can fit in ssize_t without any issue.

Link: https://lkml.kernel.org/r/b55f7eed-1c65-4adc-95d1-6c7c65a54a6e@moroto.mountain
Fixes: 5d8de293c224 ("vmcore: convert copy_oldmem_page() to take an iov_iter")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mailmap: update remaining active codeaurora.org email addresses

The lack of mailmap updates for @codeaurora.org addresses reduces the
usefulness of tools such as get_maintainer.pl. Some recent (and welcome!)
additions has been made to improve the situation, this concludes the
effort.

Link: https://lkml.kernel.org/r/20230720210256.1296567-1-quic_bjorande@quicinc.com
Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>