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Author SHA1 Message Date
Ian Rogers
fc26637d70 perf test: Correct hwmon test PMU detection 
Use name to avoid potential other hwmon PMUs.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20241118052638.754981-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
 2024-11-22 13:34:31 -08:00
Linus Torvalds
06afb0f361 tracing updates for v6.13: 
- Addition of faultable tracepoints
 
   There's a tracepoint attached to both a system call entry and exit. This
   location is known to allow page faults. The tracepoints are called under
   an rcu_read_lock() which does not allow faults that can sleep. This limits
   the ability of tracepoint handlers to page fault in user space system call
   parameters. Now these tracepoints have been made "faultable", allowing the
   callbacks to fault in user space parameters and record them.
 
   Note, only the infrastructure has been implemented. The consumers (perf,
   ftrace, BPF) now need to have their code modified to allow faults.
 
 - Fix up of BPF code for the tracepoint faultable logic
 
 - Update tracepoints to use the new static branch API
 
 - Remove trace_*_rcuidle() variants and the SRCU protection they used
 
 - Remove unused TRACE_EVENT_FL_FILTERED logic
 
 - Replace strncpy() with strscpy() and memcpy()
 
 - Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()
 
 - Fix perf events to not duplicate samples when tracing is enabled
 
 - Replace atomic64_add_return(1, counter) with atomic64_inc_return(counter)
 
 - Make stack trace buffer 4K instead of PAGE_SIZE
 
 - Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used
 
 - Get the true return address for function tracer when function graph tracer
   is also running.
 
   When function_graph trace is running along with function tracer,
   the parent function of the function tracer sometimes is
   "return_to_handler", which is the function graph trampoline to record
   the exit of the function. Use existing logic that calls into the
   fgraph infrastructure to find the real return address.
 
 - Remove (un)regfunc pointers out of tracepoint structure
 
 - Added last minute bug fix for setting pending modules in stack function
   filter.
 
   echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter
 
   Would cause a kernel NULL dereference.
 
 - Minor clean ups
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Merge tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing updates from Steven Rostedt:

 - Addition of faultable tracepoints

   There's a tracepoint attached to both a system call entry and exit.
   This location is known to allow page faults. The tracepoints are
   called under an rcu_read_lock() which does not allow faults that can
   sleep. This limits the ability of tracepoint handlers to page fault
   in user space system call parameters. Now these tracepoints have been
   made "faultable", allowing the callbacks to fault in user space
   parameters and record them.

   Note, only the infrastructure has been implemented. The consumers
   (perf, ftrace, BPF) now need to have their code modified to allow
   faults.

 - Fix up of BPF code for the tracepoint faultable logic

 - Update tracepoints to use the new static branch API

 - Remove trace_*_rcuidle() variants and the SRCU protection they used

 - Remove unused TRACE_EVENT_FL_FILTERED logic

 - Replace strncpy() with strscpy() and memcpy()

 - Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()

 - Fix perf events to not duplicate samples when tracing is enabled

 - Replace atomic64_add_return(1, counter) with
   atomic64_inc_return(counter)

 - Make stack trace buffer 4K instead of PAGE_SIZE

 - Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used

 - Get the true return address for function tracer when function graph
   tracer is also running.

   When function_graph trace is running along with function tracer, the
   parent function of the function tracer sometimes is
   "return_to_handler", which is the function graph trampoline to record
   the exit of the function. Use existing logic that calls into the
   fgraph infrastructure to find the real return address.

 - Remove (un)regfunc pointers out of tracepoint structure

 - Added last minute bug fix for setting pending modules in stack
   function filter.

     echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter

   Would cause a kernel NULL dereference.

 - Minor clean ups

* tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits)
  ftrace: Fix regression with module command in stack_trace_filter
  tracing: Fix function name for trampoline
  ftrace: Get the true parent ip for function tracer
  tracing: Remove redundant check on field->field in histograms
  bpf: ensure RCU Tasks Trace GP for sleepable raw tracepoint BPF links
  bpf: decouple BPF link/attach hook and BPF program sleepable semantics
  bpf: put bpf_link's program when link is safe to be deallocated
  tracing: Replace strncpy() with strscpy() when copying comm
  tracing: Add might_fault() check in __DECLARE_TRACE_SYSCALL
  tracing: Fix syscall tracepoint use-after-free
  tracing: Introduce tracepoint_is_faultable()
  tracing: Introduce tracepoint extended structure
  tracing: Remove TRACE_FLAG_IRQS_NOSUPPORT
  tracing: Replace multiple deprecated strncpy with memcpy
  tracing: Make percpu stack trace buffer invariant to PAGE_SIZE
  tracing: Use atomic64_inc_return() in trace_clock_counter()
  trace/trace_event_perf: remove duplicate samples on the first tracepoint event
  tracing/bpf: Add might_fault check to syscall probes
  tracing/perf: Add might_fault check to syscall probes
  tracing/ftrace: Add might_fault check to syscall probes
  ...
 2024-11-22 13:27:01 -08:00
Linus Torvalds
4b01712311 tracing/tools: Updates for 6.13 
- Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
   consistency
 
 - Remove unused sched_getattr define
 
 - Rename sched_setattr() helper to syscall_sched_setattr() to avoid
   conflicts
 
 - Update counters to long from int to avoid overflow
 
 - Add libcpupower dependency detection
 
 - Add --deepest-idle-state to timerlat to limit deep idle sleeps
 
 - Other minor clean ups and documentation changes
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Merge tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tools updates from Steven Rostedt:

 - Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
   consistency

 - Remove unused sched_getattr define

 - Rename sched_setattr() helper to syscall_sched_setattr() to avoid
   conflicts

 - Update counters to long from int to avoid overflow

 - Add libcpupower dependency detection

 - Add --deepest-idle-state to timerlat to limit deep idle sleeps

 - Other minor clean ups and documentation changes

* tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  verification/dot2: Improve dot parser robustness
  tools/rtla: Improve exception handling in timerlat_load.py
  tools/rtla: Enhance argument parsing in timerlat_load.py
  tools/rtla: Improve code readability in timerlat_load.py
  rtla/timerlat: Do not set params->user_workload with -U
  rtla: Documentation: Mention --deepest-idle-state
  rtla/timerlat: Add --deepest-idle-state for hist
  rtla/timerlat: Add --deepest-idle-state for top
  rtla/utils: Add idle state disabling via libcpupower
  rtla: Add optional dependency on libcpupower
  tools/build: Add libcpupower dependency detection
  rtla/timerlat: Make timerlat_hist_cpu->*_count unsigned long long
  rtla/timerlat: Make timerlat_top_cpu->*_count unsigned long long
  tools/rtla: fix collision with glibc sched_attr/sched_set_attr
  tools/rtla: drop __NR_sched_getattr
  rtla: Fix consistency in getopt_long for timerlat_hist
  rv: Fix a typo
  tools/rv: Correct the grammatical errors in the comments
  tools/rv: Correct the grammatical errors in the comments
  rtla: use the definition for stdout fd when calling isatty()
 2024-11-22 13:24:22 -08:00
Linus Torvalds
f1db825805 trace ring-buffer updates for v6.13 
- Limit time interrupts are disabled in rb_check_pages()
 
   The rb_check_pages() is called after the ring buffer size is updated to
   make sure that the ring buffer has not been corrupted. Commit
   c2274b908d ("ring-buffer: Fix a race between readers and resize
   checks") fixed a race with the check pages and simultaneous resizes to the
   ring buffer by adding a raw_spin_lock_irqsave() around the check
   operation. Although this was a simple fix, it would hold interrupts
   disabled for non determinative amount of time. This could harm PREEMPT_RT
   operations.
 
   Instead, modify the logic by adding a counter when the buffer is modified
   and to release the raw_spin_lock() at each iteration. It checks the
   counter under the lock to see if a modification happened during the loop,
   and if it did, it would restart the loop up to 3 times. After 3 times, it
   will simply exit the check, as it is unlikely that would ever happen as
   buffer resizes are rare occurrences.
 
 - Replace some open coded str_low_high() with the helper
 
 - Fix some documentation/comments
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Merge tag 'trace-ring-buffer-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull trace ring-buffer updates from Steven Rostedt:

 - Limit time interrupts are disabled in rb_check_pages()

   rb_check_pages() is called after the ring buffer size is updated to
   make sure that the ring buffer has not been corrupted. Commit
   c2274b908d ("ring-buffer: Fix a race between readers and resize
   checks") fixed a race with the check pages and simultaneous resizes
   to the ring buffer by adding a raw_spin_lock_irqsave() around the
   check operation. Although this was a simple fix, it would hold
   interrupts disabled for non determinative amount of time. This could
   harm PREEMPT_RT operations.

   Instead, modify the logic by adding a counter when the buffer is
   modified and to release the raw_spin_lock() at each iteration. It
   checks the counter under the lock to see if a modification happened
   during the loop, and if it did, it would restart the loop up to 3
   times. After 3 times, it will simply exit the check, as it is
   unlikely that would ever happen as buffer resizes are rare
   occurrences.

 - Replace some open coded str_low_high() with the helper

 - Fix some documentation/comments

* tag 'trace-ring-buffer-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Correct a grammatical error in a comment
  ring-buffer: Use str_low_high() helper in ring_buffer_producer()
  ring-buffer: Reorganize kerneldoc parameter names
  ring-buffer: Limit time with disabled interrupts in rb_check_pages()
 2024-11-22 13:11:17 -08:00
Linus Torvalds
be4202228e - Add new infrastructure for reading TDX metadata 
- Use the newly-available metadata to:
   - Disable potentially nasty #VE exceptions
   - Get more complete CPU topology information from the VMM
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Merge tag 'x86_tdx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull tdx updates from Dave Hansen:
 "These essentially refine some interactions between TDX guests and
  VMMs.

  The first leverages a new TDX module feature to runtime disable the
  ability for a VM to inject #VE exceptions. Before this feature, there
  was only a static on/off switch and the guest had to panic if it was
  configured in a bad state.

  The second lets the guest opt in to be able to access the topology
  CPUID leaves. Before this, accesses to those leaves would #VE.

  For both of these, it would have been nicest to just change the
  default behavior, but some pesky "other" OSes evidently need to retain
  the legacy behavior.

  Summary:

   - Add new infrastructure for reading TDX metadata

   - Use the newly-available metadata to:
      - Disable potentially nasty #VE exceptions
      - Get more complete CPU topology information from the VMM"

* tag 'x86_tdx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tdx: Enable CPU topology enumeration
  x86/tdx: Dynamically disable SEPT violations from causing #VEs
  x86/tdx: Rename tdx_parse_tdinfo() to tdx_setup()
  x86/tdx: Introduce wrappers to read and write TD metadata
 2024-11-22 13:07:19 -08:00
Linus Torvalds
5af5d43f84 - Rework some CPU setup code to keep LLVM happy on 32-bit 
- Correct RSB terminology in Kconfig text
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Merge tag 'x86_misc_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Dave Hansen:
 "As usual for this branch, these are super random: a compile fix for
  some newish LLVM checks and making sure a Kconfig text reference to
  'RSB' matches the normal definition:

   - Rework some CPU setup code to keep LLVM happy on 32-bit

   - Correct RSB terminology in Kconfig text"

* tag 'x86_misc_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Make sure flag_is_changeable_p() is always being used
  x86/bugs: Correct RSB terminology in Kconfig
 2024-11-22 12:52:03 -08:00
Linus Torvalds
be9318cd5a - Use vmalloc_array() instead of vmalloc() 
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Merge tag 'x86_sgx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull sgx update from Dave Hansen:

 - Use vmalloc_array() instead of vmalloc()

* tag 'x86_sgx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sgx: Use vmalloc_array() instead of vmalloc()
 2024-11-22 12:50:00 -08:00
Linus Torvalds
563cb0b1e7 cxl changes for v6.13 
- Constify range_contains() input parameters to prevent changes.
 - Add support for displaying RCD capabilities in sysfs to support lspci for CXL device.
 - Downgrade warning message to debug in cxl_probe_component_regs().
 - Add support for adding a printf specifier '$pra' to emit 'struct range' content.
   - Add sanity tests for 'struct resource'.
   - Add documentation for special case.
   - Add %pra for 'struct range'.
   - Add %pra usage in CXL code.
 - Add preparation code for DCD support
   - Add range_overlaps().
   - Add CDAT DSMAS table shared and read only flag in ACPICA.
   - Add documentation to 'struct dev_dax_range'.
   - Delay event buffer allocation in CXL PCI code until needed.
   - Use guard() in cxl_dpa_set_mode().
   - Refactor create region code to consolidate common code.
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Merge tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl updates from Dave Jiang:

 - Constify range_contains() input parameters to prevent changes

 - Add support for displaying RCD capabilities in sysfs to support lspci
   for CXL device

 - Downgrade warning message to debug in cxl_probe_component_regs()

 - Add support for adding a printf specifier '%pra' to emit 'struct
   range' content:
     - Add sanity tests for 'struct resource'
     - Add documentation for special case
     - Add %pra for 'struct range'
     - Add %pra usage in CXL code

 - Add preparation code for DCD support:
     - Add range_overlaps()
     - Add CDAT DSMAS table shared and read only flag in ACPICA
     - Add documentation to 'struct dev_dax_range'
     - Delay event buffer allocation in CXL PCI code until needed
     - Use guard() in cxl_dpa_set_mode()
     - Refactor create region code to consolidate common code

* tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/region: Refactor common create region code
  cxl/hdm: Use guard() in cxl_dpa_set_mode()
  cxl/pci: Delay event buffer allocation
  dax: Document struct dev_dax_range
  ACPI/CDAT: Add CDAT/DSMAS shared and read only flag values
  range: Add range_overlaps()
  cxl/cdat: Use %pra for dpa range outputs
  printf: Add print format (%pra) for struct range
  Documentation/printf: struct resource add start == end special case
  test printf: Add very basic struct resource tests
  cxl: downgrade a warning message to debug level in cxl_probe_component_regs()
  cxl/pci: Add sysfs attribute for CXL 1.1 device link status
  cxl/core/regs: Add rcd_pcie_cap initialization
  kernel/range: Const-ify range_contains parameters
 2024-11-22 12:33:52 -08:00
Miao Wang
9d8a2b033d ACPI: introduce acpi_arch_init() 
To avoid arch-specific code in general ACPI initialization flow,
introduce a weak symbol acpi_arch_init().

Currently, arm64 and riscv can utillize this to insert their
arch-specific flow.

In the future, other architectures can also have a chance to define
their own arch-specific ACPI initialization process if necessary.

Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Link: https://patch.msgid.link/20241121-intro-acpi-arch-init-v4-1-b1fb517e7d8b@gmail.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2024-11-22 21:32:25 +01:00
Rafael J. Wysocki
f3e66e78f2 Merge branch 'pm-cpuidle' 
Merge additional cpuidle changes for 6.13-rc1:

 - Make cpuidle_play_dead() try all idle states with :enter_dead()
   callbacks and change their return type to void (Rafael Wysocki).

* pm-cpuidle:
  cpuidle: Change :enter_dead() driver callback return type to void
  cpuidle: Do not return from cpuidle_play_dead() on callback failures
 2024-11-22 21:17:18 +01:00
Hans de Goede
bd8aa15848 ACPI: x86: Clean up Asus entries in acpi_quirk_skip_dmi_ids[] 
The Asus entries in the acpi_quirk_skip_dmi_ids[] table are the only
entries without a comment which model they apply to. Add these comments.

The Asus TF103C entry also is in the wrong place for what is supposed to
be an alphabetically sorted list. Move it up so that the list is properly
sorted and add a comment that the list is alphabetically sorted.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241116095825.11660-2-hdegoede@redhat.com
[ rjw: Changelog and subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2024-11-22 21:10:23 +01:00
Hans de Goede
82f250ed1a ACPI: x86: Add skip i2c clients quirk for Acer Iconia One 8 A1-840 
The Acer Iconia One 8 A1-840 (not to be confused with the A1-840FHD which
is a different model) ships with Android 4.4 as factory OS and has the
usual broken DSDT issues for x86 Android tablets.

Add quirks to skip ACPI I2C client enumeration and disable ACPI battery/AC
and ACPI GPIO event handlers.

Also add the "INT33F5" HID for the TI PMIC used on this tablet to the list
of HIDs for which not to skip i2c_client instantiation, since we do want
an ACPI instantiated i2c_client for the PMIC.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241116095825.11660-1-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2024-11-22 21:10:23 +01:00
Jason Gunthorpe
d53764723e iommu: Rename ops->domain_alloc_user() to domain_alloc_paging_flags() 
Now that the main domain allocating path is calling this function it
doesn't make sense to leave it named _user. Change the name to
alloc_paging_flags() to mirror the new iommu_paging_domain_alloc_flags()
function.

A driver should implement only one of ops->domain_alloc_paging() or
ops->domain_alloc_paging_flags(). The former is a simpler interface with
less boiler plate that the majority of drivers use. The latter is for
drivers with a greater feature set (PASID, multiple page table support,
advanced iommufd support, nesting, etc). Additional patches will be needed
to achieve this.

Link: https://patch.msgid.link/r/2-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-11-22 14:43:45 -04:00
Jason Gunthorpe
64214c2b95 iommu: Add ops->domain_alloc_nested() 
It turns out all the drivers that are using this immediately call into
another function, so just make that function directly into the op. This
makes paging=NULL for domain_alloc_user and we can remove the argument in
the next patch.

The function mirrors the similar op in the viommu that allocates a nested
domain on top of the viommu's nesting parent. This version supports cases
where a viommu is not being used.

Link: https://patch.msgid.link/r/1-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-11-22 14:43:45 -04:00
Jason Gunthorpe
2d76228195 IOMMU Updates for Linux v6.13: 
Including:
 
 	- Core Updates:
 	  - Convert call-sites using iommu_domain_alloc() to more specific
 	    versions and remove function.
 	  - Introduce iommu_paging_domain_alloc_flags().
 	  - Extend support for allocating PASID-capable domains to more
 	    drivers.
 	  - Remove iommu_present().
 	  - Some smaller improvements.
 
 	- New IOMMU driver for RISC-V.
 
 	- Intel VT-d Updates:
 	  - Add domain_alloc_paging support.
 	  - Enable user space IOPFs in non-PASID and non-svm cases.
 	  - Small code refactoring and cleanups.
 	  - Add domain replacement support for pasid.
 
 	- AMD-Vi Updates:
 	  - Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
 	    page-tables by default.
 	  - Replace custom domain ID allocator with IDA allocator.
 	  - Add ops->release_domain() support.
 	  - Other improvements to device attach and domain allocation code
 	    paths.
 
 	- ARM-SMMU Updates:
 	  - SMMUv2:
 	    - Return -EPROBE_DEFER for client devices probing before their SMMU.
 	    - Devicetree binding updates for Qualcomm MMU-500 implementations.
 	  - SMMUv3:
 	    - Minor fixes and cleanup for NVIDIA's virtual command queue driver.
 	  - IO-PGTable:
 	    - Fix indexing of concatenated PGDs and extend selftest coverage.
 	    - Remove unused block-splitting support.
 
 	- S390 IOMMU:
 	  - Implement support for blocking domain.
 
 	- Mediatek IOMMU:
 	  - Enable 35-bit physical address support for mt8186.
 
 	- OMAP IOMMU driver:
 	  - Adapt to recent IOMMU core changes and unbreak driver.
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Merge tag 'iommu-updates-v6.13' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/iommu/linux into iommufd.git

Merge with Joerg's tree for dependencies on the next patches.

======================================
IOMMU Updates for Linux v6.13:

Including:

	- Core Updates:
	  - Convert call-sites using iommu_domain_alloc() to more specific
	    versions and remove function.
	  - Introduce iommu_paging_domain_alloc_flags().
	  - Extend support for allocating PASID-capable domains to more
	    drivers.
	  - Remove iommu_present().
	  - Some smaller improvements.

	- New IOMMU driver for RISC-V.

	- Intel VT-d Updates:
	  - Add domain_alloc_paging support.
	  - Enable user space IOPFs in non-PASID and non-svm cases.
	  - Small code refactoring and cleanups.
	  - Add domain replacement support for pasid.

	- AMD-Vi Updates:
	  - Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
	    page-tables by default.
	  - Replace custom domain ID allocator with IDA allocator.
	  - Add ops->release_domain() support.
	  - Other improvements to device attach and domain allocation code
	    paths.

	- ARM-SMMU Updates:
	  - SMMUv2:
	    - Return -EPROBE_DEFER for client devices probing before their SMMU.
	    - Devicetree binding updates for Qualcomm MMU-500 implementations.
	  - SMMUv3:
	    - Minor fixes and cleanup for NVIDIA's virtual command queue driver.
	  - IO-PGTable:
	    - Fix indexing of concatenated PGDs and extend selftest coverage.
	    - Remove unused block-splitting support.

	- S390 IOMMU:
	  - Implement support for blocking domain.

	- Mediatek IOMMU:
	  - Enable 35-bit physical address support for mt8186.

	- OMAP IOMMU driver:
	  - Adapt to recent IOMMU core changes and unbreak driver.
======================================

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
 2024-11-22 14:37:25 -04:00
Sebastian Fricke
83a474c11e docs: Add debugging guide for the media subsystem 
Provide a guide for developers on how to debug code with a focus on the
media subsystem. This document aims to provide a rough overview over the
possibilities and a rational to help choosing the right tool for the
given circumstances.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-2-edf5c5b3746f@collabora.com
 2024-11-22 10:48:12 -07:00
Sebastian Fricke
a037699da0 docs: Add debugging section to process 
This idea was formed after noticing that new developers experience
certain difficulty to navigate within the multitude of different
debugging options in the Kernel and while there often is good
documentation for the tools, the developer has to know first that they
exist and where to find them.
Add a general debugging section to the Kernel documentation, as an
easily locatable entry point to other documentation and as a general
guideline for the topic.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-1-edf5c5b3746f@collabora.com
 2024-11-22 10:48:12 -07:00
Uwe Kleine-König
d8c949c577 docs/licensing: Clarify wording about "GPL" and "Proprietary" 
There are currently some doubts about out-of-tree kernel modules licensed
under GPLv3 and if they are supposed to be able to use symbols exported
using EXPORT_SYMBOL_GPL.

Clarify that "Proprietary" means anything non-GPL2 even though the
license might be an open source license. Also disambiguate "GPL
compatible" to "GPLv2 compatible".

Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241115103842.585207-2-ukleinek@kernel.org
 2024-11-22 10:44:25 -07:00
Pavel Tikhomirov
21e500138b docs: core-api/gfp_mask-from-fs-io: indicate that vmalloc supports GFP_NOFS/GFP_NOIO 
After the commit 451769ebb7 ("mm/vmalloc: alloc GFP_NO{FS,IO} for
vmalloc") in v5.17 it is now safe to use GFP_NOFS/GFP_NOIO flags
in [k]vmalloc, let's reflect it in documentation.

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119093922.567138-1-ptikhomirov@virtuozzo.com
 2024-11-22 10:42:37 -07:00
Randy Dunlap
9e6c5870bb Documentation: kernel-doc: enumerate identifier *type*s 
Explain that a kernel-doc :identifiers: line can refer to a struct,
union, enum, or typedef as well as functions.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119203201.110953-1-rdunlap@infradead.org
 2024-11-22 10:37:40 -07:00
Javier Carrasco
72471fc769 Documentation: pwrseq: Fix trivial misspellings 
Use proper spelling for 'discrete'. When at it, capitalize 'Linux',
which is common practice in the documentation.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241120-pwrseq-doc-trivial-fixes-v1-1-19a70f4dd156@gmail.com
 2024-11-22 10:36:53 -07:00
Randy Dunlap
1e726223be Documentation: filesystems: update filename extensions 
Update references to most txt files to rst files.
Update one reference to an md file to a rst file.
Update one file path to its current location.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org
Cc: Ian Kent <raven@themaw.net>
Cc: autofs@vger.kernel.org
Cc: Alexander Aring <aahringo@redhat.com>
Cc: David Teigland <teigland@redhat.com>
Cc: gfs2@lists.linux.dev
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Theodore Y. Ts'o <tytso@mit.edu>
Cc: fsverity@lists.linux.dev
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: ocfs2-devel@lists.linux.dev
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241120055246.158368-1-rdunlap@infradead.org
 2024-11-22 10:31:04 -07:00
Christophe JAILLET
f57c084928 gpio: mpsse: Remove usage of the deprecated ida_simple_xx() API 
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

This is less verbose.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/2ce706d3242b9d3e4b9c20c0a7d9a8afcf8897ec.1729423829.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
 2024-11-22 15:23:31 +01:00
Jiri Olsa
088f294609
fs/proc/kcore.c: Clear ret value in read_kcore_iter after successful iov_iter_zero 
If iov_iter_zero succeeds after failed copy_from_kernel_nofault,
we need to reset the ret value to zero otherwise it will be returned
as final return value of read_kcore_iter.

This fixes objdump -d dump over /proc/kcore for me.

Cc: stable@vger.kernel.org
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Fixes: 3d5854d75e ("fs/proc/kcore.c: allow translation of physical memory addresses")
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20241121231118.3212000-1-jolsa@kernel.org
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 2024-11-22 12:08:43 +01:00
Huacai Chen
1b9bc4207e Merge tag 'sched-core-2024-11-18' into loongarch-next 
LoongArch architecture changes for 6.13 depend on the sched-core changes
(PREEMPT_LAZY) to completely support RT, so merge them to create a base.
 2024-11-22 15:44:09 +08:00
Rob Herring (Arm)
5578b4347b tpm: atmel: Drop PPC64 specific MMIO setup 
The PPC64 specific MMIO setup open codes DT address functions rather
than using standard address parsing functions. The open-coded version
fails to handle any address translation and is not endian safe.

I haven't found any evidence of what platform used this. The only thing
that turned up was a PPC405 platform, but that is 32-bit and PPC405
support is being removed as well. CONFIG_TCG_ATMEL is not enabled for
any powerpc config and never was. The support was added in 2005 and
hasn't been touched since.

Rather than try to modernize and fix this code, just remove it.

[jarkko: fixed couple of style issues reported by checkpatch.pl --strict
 and put offset into parentheses in the macro declarations.]
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
 2024-11-22 00:56:50 +02:00
Linus Torvalds
28eb75e178 drm for 6.13-rc1 
core:
 - split DSC helpers from DP helpers
 - clang build fixes for drm/mm test
 - drop simple pipeline support for gem vram
 - document submission error signaling
 - move drm_rect to drm core module from kms helper
 - add default client setup to most drivers
 - move to video aperture helpers instead of drm ones
 
 tests:
 - new framebuffer tests
 
 ttm:
 - remove swapped and pinned BOs from TTM lru
 
 panic:
 - fix uninit spinlock
 - add ABGR2101010 support
 
 bridge:
 - add TI TDP158 support
 - use standard PM OPS
 
 dma-fence:
 - use read_trylock instead of read_lock to help lockdep
 
 scheduler:
 - add errno to sched start to report different errors
 - add locking to drm_sched_entity_modify_sched
 - improve documentation
 
 xe:
 - add drm_line_printer
 - lots of refactoring
 - Enable Xe2 + PES disaggregation
 - add new ARL PCI ID
 - SRIOV development work
 - fix exec unnecessary implicit fence
 - define and parse OA sync props
 - forcewake refactoring
 
 i915:
 - Enable BMG/LNL ultra joiner
 - Enable 10bpx + CCS scanout on ICL+, fp16/CCS on TGL+
 - use DSB for plane/color mgmt
 - Arrow lake PCI IDs
 - lots of i915/xe display refactoring
 - enable PXP GuC autoteardown
 - Pantherlake (PTL) Xe3 LPD display enablement
 - Allow fastset HDR infoframe changes
 - write DP source OUI for non-eDP sinks
 - share PCI IDs between i915 and xe
 
 amdgpu:
 - SDMA queue reset support
 - SMU 13.0.6, JPEG 4.0.3 updates
 - Initial runtime repartitioning support
 - rework IP structs for multiple IP instances
 - Fetch EDID from _DDC if available
 - SMU13 zero rpm user control
 - lots of fixes/cleanups
 
 amdkfd:
 - Increase event FIFO size
 - add topology cap flag for per queue reset
 
 msm:
 - DPU:
 - SA8775P support
 - (disabled by default) MSM8917, MSM8937, MSM8953 and MSM8996 support
 - Enable large framebuffer support
 - Drop MSM8998 and SDM845
 - DP:
 - SA8775P support
 - GPU:
 - a7xx preemption support
 - Adreno A663 support
 
 ast:
 - warn about unsupported TX chips
 
 ivpu:
 - add coredump
 - add pantherlake support
 
 rockchip:
 - 4K@60Hz display enablement
 - generate pll programming tables
 
 panthor:
 - add timestamp query API
 - add realtime group priority
 - add fdinfo support
 
 etnaviv:
 - improve handling of DMA address limits
 - improve GPU hangcheck
 
 exynos:
 - Decon Exynos7870 support
 
 mediatek:
 - add OF graph support
 
 omap:
 - locking fixes
 
 bochs:
 - convert to gem/shmem from simpledrm
 
 v3d:
 - support big/super pages
 - add gemfs
 
 vc4:
 - BCM2712 support refactoring
 - add YUV444 format support
 
 udmabuf:
 - folio related fixes
 
 nouveau:
 - add panic support on nv50+
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Merge tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "There's a lot of rework, the panic helper support is being added to
  more drivers, v3d gets support for HW superpages, scheduler
  documentation, drm client and video aperture reworks, some new
  MAINTAINERS added, amdgpu has the usual lots of IP refactors, Intel
  has some Pantherlake enablement and xe is getting some SRIOV bits, but
  just lots of stuff everywhere.

  core:
   - split DSC helpers from DP helpers
   - clang build fixes for drm/mm test
   - drop simple pipeline support for gem vram
   - document submission error signaling
   - move drm_rect to drm core module from kms helper
   - add default client setup to most drivers
   - move to video aperture helpers instead of drm ones

  tests:
   - new framebuffer tests

  ttm:
   - remove swapped and pinned BOs from TTM lru

  panic:
   - fix uninit spinlock
   - add ABGR2101010 support

  bridge:
   - add TI TDP158 support
   - use standard PM OPS

  dma-fence:
   - use read_trylock instead of read_lock to help lockdep

  scheduler:
   - add errno to sched start to report different errors
   - add locking to drm_sched_entity_modify_sched
   - improve documentation

  xe:
   - add drm_line_printer
   - lots of refactoring
   - Enable Xe2 + PES disaggregation
   - add new ARL PCI ID
   - SRIOV development work
   - fix exec unnecessary implicit fence
   - define and parse OA sync props
   - forcewake refactoring

  i915:
   - Enable BMG/LNL ultra joiner
   - Enable 10bpx + CCS scanout on ICL+, fp16/CCS on TGL+
   - use DSB for plane/color mgmt
   - Arrow lake PCI IDs
   - lots of i915/xe display refactoring
   - enable PXP GuC autoteardown
   - Pantherlake (PTL) Xe3 LPD display enablement
   - Allow fastset HDR infoframe changes
   - write DP source OUI for non-eDP sinks
   - share PCI IDs between i915 and xe

  amdgpu:
   - SDMA queue reset support
   - SMU 13.0.6, JPEG 4.0.3 updates
   - Initial runtime repartitioning support
   - rework IP structs for multiple IP instances
   - Fetch EDID from _DDC if available
   - SMU13 zero rpm user control
   - lots of fixes/cleanups

  amdkfd:
   - Increase event FIFO size
   - add topology cap flag for per queue reset

  msm:
   - DPU:
      - SA8775P support
      - (disabled by default) MSM8917, MSM8937, MSM8953 and MSM8996 support
      - Enable large framebuffer support
      - Drop MSM8998 and SDM845
   - DP:
      - SA8775P support
   - GPU:
      - a7xx preemption support
      - Adreno A663 support

  ast:
   - warn about unsupported TX chips

  ivpu:
   - add coredump
   - add pantherlake support

  rockchip:
   - 4K@60Hz display enablement
   - generate pll programming tables

  panthor:
   - add timestamp query API
   - add realtime group priority
   - add fdinfo support

  etnaviv:
   - improve handling of DMA address limits
   - improve GPU hangcheck

  exynos:
   - Decon Exynos7870 support

  mediatek:
   - add OF graph support

  omap:
   - locking fixes

  bochs:
   - convert to gem/shmem from simpledrm

  v3d:
   - support big/super pages
   - add gemfs

  vc4:
   - BCM2712 support refactoring
   - add YUV444 format support

  udmabuf:
   - folio related fixes

  nouveau:
   - add panic support on nv50+"

* tag 'drm-next-2024-11-21' of https://gitlab.freedesktop.org/drm/kernel: (1583 commits)
  drm/xe/guc: Fix dereference before NULL check
  drm/amd: Fix initialization mistake for NBIO 7.7.0
  Revert "drm/amd/display: parse umc_info or vram_info based on ASIC"
  drm/amd/display: Fix failure to read vram info due to static BP_RESULT
  drm/amdgpu: enable GTT fallback handling for dGPUs only
  drm/amd/amdgpu: limit single process inside MES
  drm/fourcc: add AMD_FMT_MOD_TILE_GFX9_4K_D_X
  drm/amdgpu/mes12: correct kiq unmap latency
  drm/amdgpu: Support vcn and jpeg error info parsing
  drm/amd : Update MES API header file for v11 & v12
  drm/amd/amdkfd: add/remove kfd queues on start/stop KFD scheduling
  drm/amdkfd: change kfd process kref count at creation
  drm/amdgpu: Cleanup shift coding style
  drm/amd/amdgpu: Increase MES log buffer to dump mes scratch data
  drm/amdgpu: Implement virt req_ras_err_count
  drm/amdgpu: VF Query RAS Caps from Host if supported
  drm/amdgpu: Add msg handlers for SRIOV RAS Telemetry
  drm/amdgpu: Update SRIOV Exchange Headers for RAS Telemetry Support
  drm/amd/display: 3.2.309
  drm/amd/display: Adjust VSDB parser for replay feature
  ...
 2024-11-21 14:56:17 -08:00
Jett Rink
2e1827de1b char: tpm: cr50: Add new device/vendor ID 0x50666666 
Accept another DID:VID for the next generation Google TPM. This TPM
has the same Ti50 firmware and fulfills the same interface.

Suggested-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
 2024-11-22 00:48:27 +02:00
Jan Dabros
44637b0b40 char: tpm: cr50: Move i2c locking to request/relinquish locality ops 
Move i2c locking primitives to request_locality and relinquish_locality
callbacks, what effectively blocks TPM bus for the whole duration of
logical TPM operation.

With this in place, cr50-equipped TPM may be shared with external CPUs -
assuming that underneath i2c controller driver is aware of this setup
(see i2c-designware-amdpsp as an example).

Signed-off-by: Jan Dabros <jsd@semihalf.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
 2024-11-22 00:48:27 +02:00
Jan Dabros
932e3a5e1e char: tpm: cr50: Use generic request/relinquish locality ops 
Instead of using static functions tpm_cr50_request_locality and
tpm_cr50_release_locality register callbacks from tpm class chip->ops
created for this purpose.

Signed-off-by: Jan Dabros <jsd@semihalf.com>
Signed-off-by: Grzegorz Bernacki <bernacki@chromium.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
 2024-11-22 00:48:27 +02:00
Stefan Berger
02e9bda80d tpm: ibmvtpm: Set TPM_OPS_AUTO_STARTUP flag on driver 
Set the TPM_OPS_AUTO_STARTUP on the driver so that the ibmvtpm driver now
uses tpm2_auto_startup and tpm1_auto_startup like many other drivers do.
Remove tpm_get_timeouts, tpm2_get_cc_attrs_tbl, and tpm2_sessions_init
calls from it since these will all be called in tpm2_auto_startup and
tpm1_auto_startup.

The exporting of the tpm2_session_init symbol was only necessary while the
ibmvtpm driver was calling this function. Since this is not the case
anymore, remove this symbol from being exported.

What is new for the ibmvtpm driver is that now tpm2_do_selftest and
tpm1_do_selftest will be called that send commands to the TPM to perform
or continue its selftest. However, the firmware should already have sent
these commands so that the TPM will not do much work at this time.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
 2024-11-22 00:48:26 +02:00
Linus Torvalds
071b34dcf7 sound updates for 6.13-rc1 
This is a relatively calm cycle, and majority of changes are about
 ASoC.  There are little changes in the core side but we received
 lots of new drivers for new vendors.
 
 * ALSA Core:
 - The new accel operation mode for compress-offload API;
   only the core part, and the actual user will follow at next
 
 * ASoC:
 - Continued API simplification works
 - Renaming of the sh directory to Renesas
 - Factoring out of some of the common code for Realtek devices
 - Ussal ASoC Intel SOF, AMD and SoundWire updates
 - Support for Allwinner H616, AMD ACP 6.3 systems, AWInic AW88081,
   Cirrus Logic CS32L84, Everest ES8328, Iron Devices SMA1307,
   Longsoon I2S, NeoFidelity NTP8918 and NTP8835, Philips UDA1342,
   Qualcomm SM8750, RealTek RT721, and ST Microelectronics STM32MP25
 
 * HD- and USB-audio:
 - Clean up of IRQ handling in legacy HD-audio driver
 - Fix soft lockup at disconnection of non-standard USB drivers
 - Scarlett2 mixer improvements
 - New quirks and cleanups in HD- and USB-audio
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Merge tag 'sound-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "This is a relatively calm cycle, and majority of changes are about
  ASoC. There are little changes in the core side but we received lots
  of new drivers for new vendors.

  ALSA Core:
   - The new accel operation mode for compress-offload API; only the
     core part, the actual user will follow later

  ASoC:
   - Continued API simplification works
   - Renaming of the sh directory to Renesas
   - Factoring out of some of the common code for Realtek devices
   - Ussal ASoC Intel SOF, AMD and SoundWire updates
   - Support for Allwinner H616, AMD ACP 6.3 systems, AWInic AW88081,
     Cirrus Logic CS32L84, Everest ES8328, Iron Devices SMA1307,
     Longsoon I2S, NeoFidelity NTP8918 and NTP8835, Philips UDA1342,
     Qualcomm SM8750, RealTek RT721, and ST Microelectronics STM32MP25

  HD- and USB-audio:
   - Clean up of IRQ handling in legacy HD-audio driver
   - Fix soft lockup at disconnection of non-standard USB drivers
   - Scarlett2 mixer improvements
   - New quirks and cleanups in HD- and USB-audio"

* tag 'sound-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (278 commits)
  ALSA: hda: Poll jack events for LS7A HD-Audio
  ASoC: hdmi-codec: reorder channel allocation list
  ALSA: ump: Fix the wrong format specifier
  ASoC: Intel: soc-acpi-intel-lnl-match: add rt712_vb + rt1320 support
  ASoC: stm32: dfsdm: change rate upper limits
  ASoC: sma1307: fix uninitialized variable refence
  ASoC: dt-bindings: simple-mux: add idle-state property
  ASoc: simple-mux: add idle-state support
  ASoC: sdca: test adev before calling acpi_dev_for_each_child
  ASoC: SOF: ipc4-topology: remove redundant assignment to variable ret
  ASoC: amd: ps: fix the pcm device numbering for acp 6.3 platform
  ASoC: amd: acp: add soundwire machine driver for legacy stack
  ASoC: amd: acp: move get_acp63_cpu_pin_id() to common file
  ASoC: amd: ps: add soundwire machines for acp6.3 platform
  ASoC: amd: acp: add RT711, RT714 & RT1316 support for acp 6.3 platform
  ASoC: amd: acp: add rt722 based soundwire machines
  ALSA: compress_offload: Add missing descriptions in structs
  ALSA: 6fire: Release resources at card release
  ALSA: caiaq: Use snd_card_free_when_closed() at disconnection
  ALSA: us122l: Drop mmap_count field
  ...
 2024-11-21 14:39:31 -08:00
Linus Torvalds
55ae3eef10 i2c-for-6.13-rc1 
i2c-core (Wolfram)
 
  - drivers can now use a GPIO as a side channel for SMBus Alerts
    using a generic binding
 
  - regular stuff like mem leak fix, Makefile maintenance...
 
 i2c-host updates (Andi)
 
 Major Improvements and Refactoring:
 
  - All controllers using the 'remove_new' callback have been
    reverted to use the 'remove' callback.
 
  - Intel SCH controller underwent significant refactoring,
    this brings love and a modern look to the driver.
 
  - PIIX4 driver refactored to enable usage by other drivers
    (e.g., AMD ASF).
 
  - iMX/MXC improved message handling to reduce protocol overhead:
      Refactored DMA/non-DMA read/write and bus polling mechanisms
      to achieve this.
 
  - ACPI documentation for PIIX4.
 
 New Features:
 
  - i2c-cadence added support for atomic transfers.
  - Qualcomm CII added support for a 32MHz serial engine clock.
 
 Deprecated Features:
 
  - Dropped outdated support for AMD756 S4882 and NFORCE2 S4985. If
    somebody misses this, Jean will rewrite support using the proper
    i2c mux framework.
 
 New Hardware Support:
 
  - Added support for:
    - Intel Panther Lake (new ID)
    - AMD ASF (new driver)
    - S32G2/S32G3 SoCs (new ID)
    - Realtek RTL I2C Controller (new driver)
    - HJMC01 DesignWare ACPI HID (new ID)
    - PIC64GX to Microchip Core (new ID)
    - Qualcomm SDM670 to Qualcomm CCI (new ID)
 
 at24 updates (Bartosz)
 
 - add support for the lockable page on ST M24256E
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Merge tag 'i2c-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "Core:

   - drivers can now use a GPIO as a side channel for SMBus Alerts using
     a generic binding

   - regular stuff like mem leak fix, Makefile maintenance...

  Host improvements and refactoring:

   - All controllers using the 'remove_new' callback have been reverted
     to use the 'remove' callback

   - Intel SCH controller underwent significant refactoring, this brings
     love and a modern look to the driver

   - PIIX4 driver refactored to enable usage by other drivers (e.g., AMD
     ASF)

   - iMX/MXC improved message handling to reduce protocol overhead:
     Refactored DMA/non-DMA read/write and bus polling mechanisms to
     achieve this.

   - ACPI documentation for PIIX4

  New host features:

   - i2c-cadence support for atomic transfers

   - Qualcomm CII support for a 32MHz serial engine clock

  Deprecated features:

   - Dropped outdated support for AMD756 S4882 and NFORCE2 S4985. If
     somebody misses this, Jean will rewrite support using the proper
     i2c mux framework.

  New hardware IDs for existing drivers:

   - Intel Panther Lake

   - S32G2/S32G3 SoCs

   - HJMC01 DesignWare ACPI HID

   - PIC64GX to Microchip Core

   - Qualcomm SDM670 to Qualcomm CCI

  New drivers:

   - AMD ASF

   - Realtek RTL I2C Controller

  at24 updates:

   - add support for the lockable page on ST M24256E"

* tag 'i2c-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (59 commits)
  docs: i2c: piix4: Add ACPI section
  i2c: Add driver for the RTL9300 I2C controller
  i2c: qcom-cci: Remove unused struct member cci_clk_rate
  dt-bindings: i2c: Add Realtek RTL I2C Controller
  i2c: busses: Use *-y instead of *-objs in Makefile
  i2c: imx: add support for S32G2/S32G3 SoCs
  dt-bindings: i2c: imx: add SoC specific compatible strings for S32G
  i2c: qcom-cci: Remove the unused variable cci_clk_rate
  i2c: Drop legacy muxing pseudo-drivers
  i2c: imx: prevent rescheduling in non dma mode
  i2c: imx: separate atomic, dma and non-dma use case
  i2c: imx: do not poll for bus busy in single master mode
  i2c: designware: Add a new ACPI HID for HJMC01 I2C controller
  i2c: qcom-geni: Keep comment why interrupts start disabled
  dt-bindings: i2c: microchip: corei2c: Add PIC64GX as compatible with driver
  i2c: designware: constify abort_sources
  i2c: Switch back to struct platform_driver::remove()
  i2c: qcom-geni: Support systems with 32MHz serial engine clock
  i2c: qcom-cci: Stop complaining about DT set clock rate
  dt-bindings: i2c: qcom-cci: Document SDM670 compatible
  ...
 2024-11-21 13:19:29 -08:00
Linus Torvalds
341d041daa iommufd 6.13 merge window pull 
Several new features and uAPI for iommufd:
 
 - IOMMU_IOAS_MAP_FILE allows passing in a file descriptor as the backing
   memory for an iommu mapping. To date VFIO/iommufd have used VMA's and
   pin_user_pages(), this now allows using memfds and memfd_pin_folios().
   Notably this creates a pure folio path from the memfd to the iommu page
   table where memory is never broken down to PAGE_SIZE.
 
 - IOMMU_IOAS_CHANGE_PROCESS moves the pinned page accounting between two
   processes. Combined with the above this allows iommufd to support a VMM
   re-start using exec() where something like qemu would exec() a new
   version of itself and fd pass the memfds/iommufd/etc to the new
   process. The memfd allows DMA access to the memory to continue while
   the new process is getting setup, and the CHANGE_PROCESS updates all
   the accounting.
 
 - Support for fault reporting to userspace on non-PRI HW, such as ARM
   stall-mode embedded devices.
 
 - IOMMU_VIOMMU_ALLOC introduces the concept of a HW/driver backed virtual
   iommu. This will be used by VMMs to access hardware features that are
   contained with in a VM. The first use is to inform the kernel of the
   virtual SID to physical SID mapping when issuing SID based invalidation
   on ARM. Further uses will tie HW features that are directly accessed by
   the VM, such as invalidation queue assignment and others.
 
 - IOMMU_VDEVICE_ALLOC informs the kernel about the mapping of virtual
   device to physical device within a VIOMMU. Minimially this is used to
   translate VM issued cache invalidation commands from virtual to physical
   device IDs.
 
 - Enhancements to IOMMU_HWPT_INVALIDATE and IOMMU_HWPT_ALLOC to work with
   the VIOMMU
 
 - ARM SMMuv3 support for nested translation. Using the VIOMMU and VDEVICE
   the driver can model this HW's behavior for nested translation. This
   includes a shared branch from Will.
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:
 "Several new features and uAPI for iommufd:

   - IOMMU_IOAS_MAP_FILE allows passing in a file descriptor as the
     backing memory for an iommu mapping. To date VFIO/iommufd have used
     VMA's and pin_user_pages(), this now allows using memfds and
     memfd_pin_folios(). Notably this creates a pure folio path from the
     memfd to the iommu page table where memory is never broken down to
     PAGE_SIZE.

   - IOMMU_IOAS_CHANGE_PROCESS moves the pinned page accounting between
     two processes. Combined with the above this allows iommufd to
     support a VMM re-start using exec() where something like qemu would
     exec() a new version of itself and fd pass the memfds/iommufd/etc
     to the new process. The memfd allows DMA access to the memory to
     continue while the new process is getting setup, and the
     CHANGE_PROCESS updates all the accounting.

   - Support for fault reporting to userspace on non-PRI HW, such as ARM
     stall-mode embedded devices.

   - IOMMU_VIOMMU_ALLOC introduces the concept of a HW/driver backed
     virtual iommu. This will be used by VMMs to access hardware
     features that are contained with in a VM. The first use is to
     inform the kernel of the virtual SID to physical SID mapping when
     issuing SID based invalidation on ARM. Further uses will tie HW
     features that are directly accessed by the VM, such as invalidation
     queue assignment and others.

   - IOMMU_VDEVICE_ALLOC informs the kernel about the mapping of virtual
     device to physical device within a VIOMMU. Minimially this is used
     to translate VM issued cache invalidation commands from virtual to
     physical device IDs.

   - Enhancements to IOMMU_HWPT_INVALIDATE and IOMMU_HWPT_ALLOC to work
     with the VIOMMU

   - ARM SMMuv3 support for nested translation. Using the VIOMMU and
     VDEVICE the driver can model this HW's behavior for nested
     translation. This includes a shared branch from Will"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd: (51 commits)
  iommu/arm-smmu-v3: Import IOMMUFD module namespace
  iommufd: IOMMU_IOAS_CHANGE_PROCESS selftest
  iommufd: Add IOMMU_IOAS_CHANGE_PROCESS
  iommufd: Lock all IOAS objects
  iommufd: Export do_update_pinned
  iommu/arm-smmu-v3: Support IOMMU_HWPT_INVALIDATE using a VIOMMU object
  iommu/arm-smmu-v3: Allow ATS for IOMMU_DOMAIN_NESTED
  iommu/arm-smmu-v3: Use S2FWB for NESTED domains
  iommu/arm-smmu-v3: Support IOMMU_DOMAIN_NESTED
  iommu/arm-smmu-v3: Support IOMMU_VIOMMU_ALLOC
  Documentation: userspace-api: iommufd: Update vDEVICE
  iommufd/selftest: Add vIOMMU coverage for IOMMU_HWPT_INVALIDATE ioctl
  iommufd/selftest: Add IOMMU_TEST_OP_DEV_CHECK_CACHE test command
  iommufd/selftest: Add mock_viommu_cache_invalidate
  iommufd/viommu: Add iommufd_viommu_find_dev helper
  iommu: Add iommu_copy_struct_from_full_user_array helper
  iommufd: Allow hwpt_id to carry viommu_id for IOMMU_HWPT_INVALIDATE
  iommu/viommu: Add cache_invalidate to iommufd_viommu_ops
  iommufd/selftest: Add IOMMU_VDEVICE_ALLOC test coverage
  iommufd/viommu: Add IOMMUFD_OBJ_VDEVICE and IOMMU_VDEVICE_ALLOC ioctl
  ...
 2024-11-21 12:40:50 -08:00
Linus Torvalds
51ae62a12c dma-mapping updates for Linux 6.13 
- improve the DMA API tracing code (Sean Anderson)
  - misc cleanups (Christoph Hellwig, Sui Jingfeng)
  - fix pointer abuse when finding the shared DMA pool (Geert Uytterhoeven)
  - fix a deadlock in dma-debug (Levi Yun)
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Merge tag 'dma-mapping-6.13-2024-11-19' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - improve the DMA API tracing code (Sean Anderson)

 - misc cleanups (Christoph Hellwig, Sui Jingfeng)

 - fix pointer abuse when finding the shared DMA pool (Geert
   Uytterhoeven)

 - fix a deadlock in dma-debug (Levi Yun)

* tag 'dma-mapping-6.13-2024-11-19' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: save base/size instead of pointer to shared DMA pool
  dma-mapping: fix swapped dir/flags arguments to trace_dma_alloc_sgt_err
  dma-mapping: drop unneeded includes from dma-mapping.h
  dma-mapping: trace more error paths
  dma-mapping: use trace_dma_alloc for dma_alloc* instead of using trace_dma_map
  dma-mapping: trace dma_alloc/free direction
  dma-mapping: use macros to define events in a class
  dma-mapping: remove an outdated comment from dma-map-ops.h
  dma-debug: remove DMA_API_DEBUG_SG
  dma-debug: store a phys_addr_t in struct dma_debug_entry
  dma-debug: fix a possible deadlock on radix_lock
 2024-11-21 11:28:39 -08:00
Linus Torvalds
40f48f82a1 configfs updates for Linux 6.13 
- remove unused code (Dr. David Alan Gilbert)
  - improve item creation performance (Seamus Connor)
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Merge tag 'configfs-6.13-2024-11-19' of git://git.infradead.org/users/hch/configfs

Pull configfs updates from Christoph Hellwig:

 - remove unused code (Dr. David Alan Gilbert)

 - improve item creation performance (Seamus Connor)

* tag 'configfs-6.13-2024-11-19' of git://git.infradead.org/users/hch/configfs:
  configfs: improve item creation performance
  configfs: remove unused configfs_hash_and_remove
 2024-11-21 11:26:38 -08:00
Linus Torvalds
fc39fb5691 A few more patches to add sanity checks in jfs 
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Merge tag 'jfs-6.13' of github.com:kleikamp/linux-shaggy

Pull jfs updates from Dave Kleikamp:
 "A few more patches to add sanity checks in jfs"

* tag 'jfs-6.13' of github.com:kleikamp/linux-shaggy:
  jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree
  jfs: xattr: check invalid xattr size more strictly
  jfs: fix array-index-out-of-bounds in jfs_readdir
  jfs: fix shift-out-of-bounds in dbSplit
  jfs: array-index-out-of-bounds fix in dtReadFirst
 2024-11-21 09:59:59 -08:00
Linus Torvalds
6a550ae556 dlm for 6.13 
- Fix recovery of locks that are being converted between PR/CW modes.
 - Fix cleanup of rsb list if recovery is interrupted during recover_members.
 - Fix null dereference in debug code if dlm api is called improperly.
 - Fix wrong args passed to trace function.
 - Move error checks out of add_to_waiters so the function can't fail.
 - Clean up some code for configfs.
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Merge tag 'dlm-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:

 - Fix recovery of locks that are being converted between PR/CW modes

 - Fix cleanup of rsb list if recovery is interrupted during
   recover_members

 - Fix null dereference in debug code if dlm api is called improperly

 - Fix wrong args passed to trace function

 - Move error checks out of add_to_waiters so the function can't fail

 - Clean up some code for configfs

* tag 'dlm-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: fix dlm_recover_members refcount on error
  dlm: fix recovery of middle conversions
  dlm: make add_to_waiters() that it can't fail
  dlm: dlm_config_info config fields to unsigned int
  dlm: use dlm_config as only cluster configuration
  dlm: handle port as __be16 network byte order
  dlm: disallow different configs nodeid storages
  dlm: fix possible lkb_resource null dereference
  dlm: fix swapped args sb_flags vs sb_status
 2024-11-21 09:57:46 -08:00
Linus Torvalds
2dde263d81 \n 
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Merge tag 'fsnotify_for_v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull fsnotify updates from Jan Kara:
 "A couple of smaller random fsnotify fixes"

* tag 'fsnotify_for_v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  fsnotify: Fix ordering of iput() and watched_objects decrement
  fsnotify: fix sending inotify event with unexpected filename
  fanotify: allow reporting errors on failure to open fd
  fsnotify, lsm: Decouple fsnotify from lsm
 2024-11-21 09:55:45 -08:00
Linus Torvalds
c01f664e4c \n 
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Merge tag 'reiserfs_delete' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull reiserfs removal from Jan Kara:
 "The deprecation period of reiserfs is ending at the end of this year
  so it is time to remove it"

* tag 'reiserfs_delete' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: The last commit
 2024-11-21 09:50:18 -08:00
Linus Torvalds
597861d6cd \n 
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Merge tag 'for_v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull quota and isofs updates from Jan Kara:
 "Fix a memory leak in isofs and a cleanup of includes in quota"

* tag 'for_v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  dquot.c: get rid of include ../internal.h
  isofs: avoid memory leak in iocharset
 2024-11-21 09:47:44 -08:00
Linus Torvalds
2edc8f933d New xfs code for 6.13 
* convert perag to use xarrays
 * create a new generic allocation group structure
 * Add metadata inode dir trees
 * Create in-core rt allocation groups
 * Shard the RT section into allocation groups
 * Persist quota options with the enw metadata dir tree
 * Enable quota for RT volumes
 * Enable metadata directory trees
 * Some bugfixes
 
 Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-6.13-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Carlos Maiolino:
 "The bulk of this pull request is a major rework that Darrick and
  Christoph have been doing on XFS's real-time volume, coupled with a
  few features to support this rework. It does also includes some bug
  fixes.

   - convert perag to use xarrays

   - create a new generic allocation group structure

   - add metadata inode dir trees

   - create in-core rt allocation groups

   - shard the RT section into allocation groups

   - persist quota options with the enw metadata dir tree

   - enable quota for RT volumes

   - enable metadata directory trees

   - some bugfixes"

* tag 'xfs-6.13-merge-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (146 commits)
  xfs: port ondisk structure checks from xfs/122 to the kernel
  xfs: separate space btree structures in xfs_ondisk.h
  xfs: convert struct typedefs in xfs_ondisk.h
  xfs: enable metadata directory feature
  xfs: enable realtime quota again
  xfs: update sb field checks when metadir is turned on
  xfs: reserve quota for realtime files correctly
  xfs: create quota preallocation watermarks for realtime quota
  xfs: report realtime block quota limits on realtime directories
  xfs: persist quota flags with metadir
  xfs: advertise realtime quota support in the xqm stat files
  xfs: scrub quota file metapaths
  xfs: fix chown with rt quota
  xfs: use metadir for quota inodes
  xfs: refactor xfs_qm_destroy_quotainos
  xfs: use rtgroup busy extent list for FITRIM
  xfs: implement busy extent tracking for rtgroups
  xfs: port the perag discard code to handle generic groups
  xfs: move the min and max group block numbers to xfs_group
  xfs: adjust min_block usage in xfs_verify_agbno
  ...
 2024-11-21 09:20:07 -08:00
Linus Torvalds
90a19b744d Changes since last update: 
- Add SEEK_{DATA,HOLE} support;
 
  - Free redundant pclusters if no cached compressed data is valid;
 
  - Add sysfs entry to drop internal caches;
 
  - Several bugfixes & cleanups.
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Merge tag 'erofs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "There is no outstanding feature for this cycle. The most useful
  changes are SEEK_{DATA,HOLE} support and some decompression
  micro-optimization. Other than those, there are some bugfixes and
  cleanups as usual:

   - Add SEEK_{DATA,HOLE} support

   - Free redundant pclusters if no cached compressed data is valid

   - Add sysfs entry to drop internal caches

   - Several bugfixes & cleanups"

* tag 'erofs-for-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: handle NONHEAD !delta[1] lclusters gracefully
  erofs: clarify direct I/O support
  erofs: fix blksize < PAGE_SIZE for file-backed mounts
  erofs: get rid of `buf->kmap_type`
  erofs: fix file-backed mounts over FUSE
  erofs: simplify definition of the log functions
  erofs: add sysfs node to drop internal caches
  erofs: free pclusters if no cached folio is attached
  erofs: sunset `struct erofs_workgroup`
  erofs: move erofs_workgroup operations into zdata.c
  erofs: get rid of erofs_{find,insert}_workgroup
  erofs: add SEEK_{DATA,HOLE} support
 2024-11-21 09:17:33 -08:00
Paul Aurich
a9685b409a smb: prevent use-after-free due to open_cached_dir error paths 
If open_cached_dir() encounters an error parsing the lease from the
server, the error handling may race with receiving a lease break,
resulting in open_cached_dir() freeing the cfid while the queued work is
pending.

Update open_cached_dir() to drop refs rather than directly freeing the
cfid.

Have cached_dir_lease_break(), cfids_laundromat_worker(), and
invalidate_all_cached_dirs() clear has_lease immediately while still
holding cfids->cfid_list_lock, and then use this to also simplify the
reference counting in cfids_laundromat_worker() and
invalidate_all_cached_dirs().

Fixes this KASAN splat (which manually injects an error and lease break
in open_cached_dir()):

==================================================================
BUG: KASAN: slab-use-after-free in smb2_cached_lease_break+0x27/0xb0
Read of size 8 at addr ffff88811cc24c10 by task kworker/3:1/65

CPU: 3 UID: 0 PID: 65 Comm: kworker/3:1 Not tainted 6.12.0-rc6-g255cf264e6e5-dirty #87
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
Workqueue: cifsiod smb2_cached_lease_break
Call Trace:
 <TASK>
 dump_stack_lvl+0x77/0xb0
 print_report+0xce/0x660
 kasan_report+0xd3/0x110
 smb2_cached_lease_break+0x27/0xb0
 process_one_work+0x50a/0xc50
 worker_thread+0x2ba/0x530
 kthread+0x17c/0x1c0
 ret_from_fork+0x34/0x60
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Allocated by task 2464:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0xaa/0xb0
 open_cached_dir+0xa7d/0x1fb0
 smb2_query_path_info+0x43c/0x6e0
 cifs_get_fattr+0x346/0xf10
 cifs_get_inode_info+0x157/0x210
 cifs_revalidate_dentry_attr+0x2d1/0x460
 cifs_getattr+0x173/0x470
 vfs_statx_path+0x10f/0x160
 vfs_statx+0xe9/0x150
 vfs_fstatat+0x5e/0xc0
 __do_sys_newfstatat+0x91/0xf0
 do_syscall_64+0x95/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Freed by task 2464:
 kasan_save_stack+0x33/0x60
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3b/0x60
 __kasan_slab_free+0x51/0x70
 kfree+0x174/0x520
 open_cached_dir+0x97f/0x1fb0
 smb2_query_path_info+0x43c/0x6e0
 cifs_get_fattr+0x346/0xf10
 cifs_get_inode_info+0x157/0x210
 cifs_revalidate_dentry_attr+0x2d1/0x460
 cifs_getattr+0x173/0x470
 vfs_statx_path+0x10f/0x160
 vfs_statx+0xe9/0x150
 vfs_fstatat+0x5e/0xc0
 __do_sys_newfstatat+0x91/0xf0
 do_syscall_64+0x95/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Last potentially related work creation:
 kasan_save_stack+0x33/0x60
 __kasan_record_aux_stack+0xad/0xc0
 insert_work+0x32/0x100
 __queue_work+0x5c9/0x870
 queue_work_on+0x82/0x90
 open_cached_dir+0x1369/0x1fb0
 smb2_query_path_info+0x43c/0x6e0
 cifs_get_fattr+0x346/0xf10
 cifs_get_inode_info+0x157/0x210
 cifs_revalidate_dentry_attr+0x2d1/0x460
 cifs_getattr+0x173/0x470
 vfs_statx_path+0x10f/0x160
 vfs_statx+0xe9/0x150
 vfs_fstatat+0x5e/0xc0
 __do_sys_newfstatat+0x91/0xf0
 do_syscall_64+0x95/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff88811cc24c00
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 16 bytes inside of
 freed 1024-byte region [ffff88811cc24c00, ffff88811cc25000)

Cc: stable@vger.kernel.org
Signed-off-by: Paul Aurich <paul@darkrain42.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:50 -06:00
Paul Aurich
7afb867336 smb: Don't leak cfid when reconnect races with open_cached_dir 
open_cached_dir() may either race with the tcon reconnection even before
compound_send_recv() or directly trigger a reconnection via
SMB2_open_init() or SMB_query_info_init().

The reconnection process invokes invalidate_all_cached_dirs() via
cifs_mark_open_files_invalid(), which removes all cfids from the
cfids->entries list but doesn't drop a ref if has_lease isn't true. This
results in the currently-being-constructed cfid not being on the list,
but still having a refcount of 2. It leaks if returned from
open_cached_dir().

Fix this by setting cfid->has_lease when the ref is actually taken; the
cfid will not be used by other threads until it has a valid time.

Addresses these kmemleaks:

unreferenced object 0xffff8881090c4000 (size 1024):
  comm "bash", pid 1860, jiffies 4295126592
  hex dump (first 32 bytes):
    00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de  ........".......
    00 ca 45 22 81 88 ff ff f8 dc 4f 04 81 88 ff ff  ..E"......O.....
  backtrace (crc 6f58c20f):
    [<ffffffff8b895a1e>] __kmalloc_cache_noprof+0x2be/0x350
    [<ffffffff8bda06e3>] open_cached_dir+0x993/0x1fb0
    [<ffffffff8bdaa750>] cifs_readdir+0x15a0/0x1d50
    [<ffffffff8b9a853f>] iterate_dir+0x28f/0x4b0
    [<ffffffff8b9a9aed>] __x64_sys_getdents64+0xfd/0x200
    [<ffffffff8cf6da05>] do_syscall_64+0x95/0x1a0
    [<ffffffff8d00012f>] entry_SYSCALL_64_after_hwframe+0x76/0x7e
unreferenced object 0xffff8881044fdcf8 (size 8):
  comm "bash", pid 1860, jiffies 4295126592
  hex dump (first 8 bytes):
    00 cc cc cc cc cc cc cc                          ........
  backtrace (crc 10c106a9):
    [<ffffffff8b89a3d3>] __kmalloc_node_track_caller_noprof+0x363/0x480
    [<ffffffff8b7d7256>] kstrdup+0x36/0x60
    [<ffffffff8bda0700>] open_cached_dir+0x9b0/0x1fb0
    [<ffffffff8bdaa750>] cifs_readdir+0x15a0/0x1d50
    [<ffffffff8b9a853f>] iterate_dir+0x28f/0x4b0
    [<ffffffff8b9a9aed>] __x64_sys_getdents64+0xfd/0x200
    [<ffffffff8cf6da05>] do_syscall_64+0x95/0x1a0
    [<ffffffff8d00012f>] entry_SYSCALL_64_after_hwframe+0x76/0x7e

And addresses these BUG splats when unmounting the SMB filesystem:

BUG: Dentry ffff888140590ba0{i=1000000000080,n=/}  still in use (2) [unmount of cifs cifs]
WARNING: CPU: 3 PID: 3433 at fs/dcache.c:1536 umount_check+0xd0/0x100
Modules linked in:
CPU: 3 UID: 0 PID: 3433 Comm: bash Not tainted 6.12.0-rc4-g850925a8133c-dirty #49
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
RIP: 0010:umount_check+0xd0/0x100
Code: 8d 7c 24 40 e8 31 5a f4 ff 49 8b 54 24 40 41 56 49 89 e9 45 89 e8 48 89 d9 41 57 48 89 de 48 c7 c7 80 e7 db ac e8 f0 72 9a ff <0f> 0b 58 31 c0 5a 5b 5d 41 5c 41 5d 41 5e 41 5f e9 2b e5 5d 01 41
RSP: 0018:ffff88811cc27978 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888140590ba0 RCX: ffffffffaaf20bae
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffff8881f6fb6f40
RBP: ffff8881462ec000 R08: 0000000000000001 R09: ffffed1023984ee3
R10: ffff88811cc2771f R11: 00000000016cfcc0 R12: ffff888134383e08
R13: 0000000000000002 R14: ffff8881462ec668 R15: ffffffffaceab4c0
FS:  00007f23bfa98740(0000) GS:ffff8881f6f80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556de4a6f808 CR3: 0000000123c80000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 d_walk+0x6a/0x530
 shrink_dcache_for_umount+0x6a/0x200
 generic_shutdown_super+0x52/0x2a0
 kill_anon_super+0x22/0x40
 cifs_kill_sb+0x159/0x1e0
 deactivate_locked_super+0x66/0xe0
 cleanup_mnt+0x140/0x210
 task_work_run+0xfb/0x170
 syscall_exit_to_user_mode+0x29f/0x2b0
 do_syscall_64+0xa1/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f23bfb93ae7
Code: ff ff ff ff c3 66 0f 1f 44 00 00 48 8b 0d 11 93 0d 00 f7 d8 64 89 01 b8 ff ff ff ff eb bf 0f 1f 44 00 00 b8 50 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d e9 92 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffee9138598 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: 0000000000000000 RBX: 0000558f1803e9a0 RCX: 00007f23bfb93ae7
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000558f1803e9a0
RBP: 0000558f1803e600 R08: 0000000000000007 R09: 0000558f17fab610
R10: d91d5ec34ab757b0 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000015 R15: 0000000000000000
 </TASK>
irq event stamp: 1163486
hardirqs last  enabled at (1163485): [<ffffffffac98d344>] _raw_spin_unlock_irqrestore+0x34/0x60
hardirqs last disabled at (1163486): [<ffffffffac97dcfc>] __schedule+0xc7c/0x19a0
softirqs last  enabled at (1163482): [<ffffffffab79a3ee>] __smb_send_rqst+0x3de/0x990
softirqs last disabled at (1163480): [<ffffffffac2314f1>] release_sock+0x21/0xf0
---[ end trace 0000000000000000 ]---

VFS: Busy inodes after unmount of cifs (cifs)
------------[ cut here ]------------
kernel BUG at fs/super.c:661!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 3433 Comm: bash Tainted: G        W          6.12.0-rc4-g850925a8133c-dirty #49
Tainted: [W]=WARN
Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 11/12/2020
RIP: 0010:generic_shutdown_super+0x290/0x2a0
Code: e8 15 7c f7 ff 48 8b 5d 28 48 89 df e8 09 7c f7 ff 48 8b 0b 48 89 ee 48 8d 95 68 06 00 00 48 c7 c7 80 7f db ac e8 00 69 af ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90
RSP: 0018:ffff88811cc27a50 EFLAGS: 00010246
RAX: 000000000000003e RBX: ffffffffae994420 RCX: 0000000000000027
RDX: 0000000000000000 RSI: ffffffffab06180e RDI: ffff8881f6eb18c8
RBP: ffff8881462ec000 R08: 0000000000000001 R09: ffffed103edd6319
R10: ffff8881f6eb18cb R11: 00000000016d3158 R12: ffff8881462ec9c0
R13: ffff8881462ec050 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f23bfa98740(0000) GS:ffff8881f6e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8364005d68 CR3: 0000000123c80000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 kill_anon_super+0x22/0x40
 cifs_kill_sb+0x159/0x1e0
 deactivate_locked_super+0x66/0xe0
 cleanup_mnt+0x140/0x210
 task_work_run+0xfb/0x170
 syscall_exit_to_user_mode+0x29f/0x2b0
 do_syscall_64+0xa1/0x1a0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f23bfb93ae7
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x290/0x2a0
Code: e8 15 7c f7 ff 48 8b 5d 28 48 89 df e8 09 7c f7 ff 48 8b 0b 48 89 ee 48 8d 95 68 06 00 00 48 c7 c7 80 7f db ac e8 00 69 af ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90
RSP: 0018:ffff88811cc27a50 EFLAGS: 00010246
RAX: 000000000000003e RBX: ffffffffae994420 RCX: 0000000000000027
RDX: 0000000000000000 RSI: ffffffffab06180e RDI: ffff8881f6eb18c8
RBP: ffff8881462ec000 R08: 0000000000000001 R09: ffffed103edd6319
R10: ffff8881f6eb18cb R11: 00000000016d3158 R12: ffff8881462ec9c0
R13: ffff8881462ec050 R14: 0000000000000001 R15: 0000000000000000
FS:  00007f23bfa98740(0000) GS:ffff8881f6e80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8364005d68 CR3: 0000000123c80000 CR4: 0000000000350ef0

This reproduces eventually with an SMB mount and two shells running
these loops concurrently

- while true; do
      cd ~; sleep 1;
      for i in {1..3}; do cd /mnt/test/subdir;
          echo $PWD; sleep 1; cd ..; echo $PWD; sleep 1;
      done;
      echo ...;
  done
- while true; do
      iptables -F OUTPUT; mount -t cifs -a;
      for _ in {0..2}; do ls /mnt/test/subdir/ | wc -l; done;
      iptables -I OUTPUT -p tcp --dport 445 -j DROP;
      sleep 10
      echo "unmounting"; umount -l -t cifs -a; echo "done unmounting";
      sleep 20
      echo "recovering"; iptables -F OUTPUT;
      sleep 10;
  done

Fixes: ebe98f1447 ("cifs: enable caching of directories for which a lease is held")
Fixes: 5c86919455 ("smb: client: fix use-after-free in smb2_query_info_compound()")
Cc: stable@vger.kernel.org
Signed-off-by: Paul Aurich <paul@darkrain42.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:50 -06:00
Paulo Alcantara
0812340811 smb: client: handle max length for SMB symlinks 
We can't use PATH_MAX for SMB symlinks because

  (1) Windows Server will fail FSCTL_SET_REPARSE_POINT with
      STATUS_IO_REPARSE_DATA_INVALID when input buffer is larger than
      16K, as specified in MS-FSA 2.1.5.10.37.

  (2) The client won't be able to parse large SMB responses that
      includes SMB symlink path within SMB2_CREATE or SMB2_IOCTL
      responses.

Fix this by defining a maximum length value (4060) for SMB symlinks
that both client and server can handle.

Cc: David Howells <dhowells@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:50 -06:00
Paulo Alcantara
9f544d26b1 smb: client: get rid of bounds check in SMB2_ioctl_init() 
smb2_set_next_command() no longer squashes request iovs into a single
iov, so the bounds check can be dropped.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:50 -06:00
Paulo Alcantara
bc925c1216 smb: client: improve compound padding in encryption 
After commit f7f291e14d ("cifs: fix oops during encryption"), the
encryption layer can handle vmalloc'd buffers as well as kmalloc'd
buffers, so there is no need to inefficiently squash request iovs
into a single one to handle padding in compound requests.

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:49 -06:00
Steve French
9ed9d83a51 smb3: request handle caching when caching directories 
This client was only requesting READ caching, not READ and HANDLE caching
in the LeaseState on the open requests we send for directories.  To
delay closing a handle (e.g. for caching directory contents) we should
be requesting HANDLE as well as READ (as we already do for deferred
close of files).   See MS-SMB2 3.3.1.4 e.g.

Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:45:15 -06:00
Pali Rohár
0d6b0d2e38 cifs: Recognize SFU char/block devices created by Windows NFS server on Windows Server <<2012 
Windows NFS server versions on Windows Server older than 2012 release use
for storing char and block devices modified SFU format, not compatible with
the original SFU. Windows NFS server on Windows Server 2012 and new
versions use different format (reparse points), not related to SFU-style.

SFU / SUA / Interix subsystem stores the major and major numbers as pair of
64-bit integer, but Windows NFS server stores as pair of 32-bit integers.

Which makes char and block devices between Windows NFS server <<2012 and
Windows SFU/SUA/Interix subsytem incompatible.

So improve Linux SMB client.

When SFU mode is enabled (mount option -o sfu is specified) then recognize
also these kind of char and block devices and its major and minor numbers,
which are used by Windows Server versions older than 2012.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-11-21 10:44:29 -06:00