Commit Graph

8555 Commits

Author SHA1 Message Date
Kent Overstreet
73badee428 lib/generic-radix-tree.c: Add peek_prev()
This patch adds genradix_peek_prev(), genradix_iter_rewind(), and
genradix_for_each_reverse(), for iterating backwards over a generic
radix tree.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-19 14:47:33 -04:00
Kent Overstreet
9492261ff2 lib/generic-radix-tree.c: Don't overflow in peek()
When we started spreading new inode numbers throughout most of the 64
bit inode space, that triggered some corner case bugs, in particular
some integer overflows related to the radix tree code. Oops.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
2023-10-19 14:47:33 -04:00
Kent Overstreet
b414e8ecd4 closures: Add a missing include
Fixes building in userspace.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-19 14:47:33 -04:00
Kent Overstreet
8c8d2d9670 bcache: move closures to lib/
Prep work for bcachefs - being a fork of bcache it also uses closures

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Acked-by: Coly Li <colyli@suse.de>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
2023-10-19 14:47:33 -04:00
Kent Overstreet
21db931445 lib: Export errname
errname() returns the name of an errcode; this functionality is
otherwise only available for error pointers via %pE - bcachefs uses this
for better error messages.

Signed-off-by: Christopher James Halse Rogers <raof@ubuntu.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-09-11 23:59:47 -04:00
Kent Overstreet
83feeb1955 lib/string_helpers: string_get_size() now returns characters wrote
printbuf now needs to know the number of characters that would have been
written if the buffer was too small, like snprintf(); this changes
string_get_size() to return the the return value of snprintf().

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-09-11 23:59:47 -04:00
David Howells
a3c57ab79a iov_iter: Kunit tests for page extraction
Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators.  ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction.  ITER_DISCARD isn't dealt with
either as that can't be extracted.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-09-09 15:11:49 -07:00
David Howells
2d71340ff1 iov_iter: Kunit tests for copying to/from an iterator
Add some kunit tests for page extraction for ITER_BVEC, ITER_KVEC and
ITER_XARRAY type iterators.  ITER_UBUF and ITER_IOVEC aren't dealt with
as they require userspace VM interaction.  ITER_DISCARD isn't dealt with
either as that does nothing.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-09-09 15:11:49 -07:00
David Howells
f741bd7178 iov_iter: Fix iov_iter_extract_pages() with zero-sized entries
iov_iter_extract_pages() doesn't correctly handle skipping over initial
zero-length entries in ITER_KVEC and ITER_BVEC-type iterators.

The problem is that it accidentally reduces maxsize to 0 when it
skipping and thus runs to the end of the array and returns 0.

Fix this by sticking the calculated size-to-copy in a new variable
rather than back in maxsize.

Fixes: 7d58fe7310 ("iov_iter: Add a function to extract a page list from an iterator")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-09-09 15:11:49 -07:00
Linus Torvalds
3095dd99dd XArray/IDA updates for 6.6
- Fix a bug encountered by people using bittorrent where they'd get
    NULL pointer dereferences on page cache lookups when using XFS
 
  - Two documentation fixes
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Merge tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray

Pull xarray fixes from Matthew Wilcox:

 - Fix a bug encountered by people using bittorrent where they'd get
   NULL pointer dereferences on page cache lookups when using XFS

 - Two documentation fixes

* tag 'xarray-6.6' of git://git.infradead.org/users/willy/xarray:
  idr: fix param name in idr_alloc_cyclic() doc
  xarray: Document necessary flag in alloc functions
  XArray: Do not return sibling entries from xa_load()
2023-09-08 21:46:26 -07:00
Linus Torvalds
12952b6bbd LoongArch changes for v6.6
1, Allow usage of LSX/LASX in the kernel;
 2, Add SIMD-optimized RAID5/RAID6 routines;
 3, Add Loongson Binary Translation (LBT) extension support;
 4, Add basic KGDB & KDB support;
 5, Add building with kcov coverage;
 6, Add KFENCE (Kernel Electric-Fence) support;
 7, Add KASAN (Kernel Address Sanitizer) support;
 8, Some bug fixes and other small changes;
 9, Update the default config file.
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Merge tag 'loongarch-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Allow usage of LSX/LASX in the kernel, and use them for
   SIMD-optimized RAID5/RAID6 routines

 - Add Loongson Binary Translation (LBT) extension support

 - Add basic KGDB & KDB support

 - Add building with kcov coverage

 - Add KFENCE (Kernel Electric-Fence) support

 - Add KASAN (Kernel Address Sanitizer) support

 - Some bug fixes and other small changes

 - Update the default config file

* tag 'loongarch-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (25 commits)
  LoongArch: Update Loongson-3 default config file
  LoongArch: Add KASAN (Kernel Address Sanitizer) support
  LoongArch: Simplify the processing of jumping new kernel for KASLR
  kasan: Add (pmd|pud)_init for LoongArch zero_(pud|p4d)_populate process
  kasan: Add __HAVE_ARCH_SHADOW_MAP to support arch specific mapping
  LoongArch: Add KFENCE (Kernel Electric-Fence) support
  LoongArch: Get partial stack information when providing regs parameter
  LoongArch: mm: Add page table mapped mode support for virt_to_page()
  kfence: Defer the assignment of the local variable addr
  LoongArch: Allow building with kcov coverage
  LoongArch: Provide kaslr_offset() to get kernel offset
  LoongArch: Add basic KGDB & KDB support
  LoongArch: Add Loongson Binary Translation (LBT) extension support
  raid6: Add LoongArch SIMD recovery implementation
  raid6: Add LoongArch SIMD syndrome calculation
  LoongArch: Add SIMD-optimized XOR routines
  LoongArch: Allow usage of LSX/LASX in the kernel
  LoongArch: Define symbol 'fault' as a local label in fpu.S
  LoongArch: Adjust {copy, clear}_user exception handler behavior
  LoongArch: Use static defined zero page rather than allocated
  ...
2023-09-08 12:16:52 -07:00
WANG Xuerui
f209132104 raid6: Add LoongArch SIMD recovery implementation
Similar to the syndrome calculation, the recovery algorithms also work
on 64 bytes at a time to align with the L1 cache line size of current
and future LoongArch cores (that we care about). Which means
unrolled-by-4 LSX and unrolled-by-2 LASX code.

The assembly is originally based on the x86 SSSE3/AVX2 ports, but
register allocation has been redone to take advantage of LSX/LASX's 32
vector registers, and instruction sequence has been optimized to suit
(e.g. LoongArch can perform per-byte srl and andi on vectors, but x86
cannot).

Performance numbers measured by instrumenting the raid6test code, on a
3A5000 system clocked at 2.5GHz:

> lasx  2data: 354.987 MiB/s
> lasx  datap: 350.430 MiB/s
> lsx   2data: 340.026 MiB/s
> lsx   datap: 337.318 MiB/s
> intx1 2data: 164.280 MiB/s
> intx1 datap: 187.966 MiB/s

Because recovery algorithms are chosen solely based on priority and
availability, lasx is marked as priority 2 and lsx priority 1. At least
for the current generation of LoongArch micro-architectures, LASX should
always be faster than LSX whenever supported, and have similar power
consumption characteristics (because the only known LASX-capable uarch,
the LA464, always compute the full 256-bit result for vector ops).

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-09-06 22:53:55 +08:00
WANG Xuerui
8f3f06dfd6 raid6: Add LoongArch SIMD syndrome calculation
The algorithms work on 64 bytes at a time, which is the L1 cache line
size of all current and future LoongArch cores (that we care about), as
confirmed by Huacai. The code is based on the generic int.uc algorithm,
unrolled 4 times for LSX and 2 times for LASX. Further unrolling does
not meaningfully improve the performance according to experiments.

Performance numbers measured during system boot on a 3A5000 @ 2.5GHz:

> raid6: lasx     gen() 12726 MB/s
> raid6: lsx      gen() 10001 MB/s
> raid6: int64x8  gen()  2876 MB/s
> raid6: int64x4  gen()  3867 MB/s
> raid6: int64x2  gen()  2531 MB/s
> raid6: int64x1  gen()  1945 MB/s

Comparison of xor() speeds (from different boots but meaningful anyway):

> lasx:    11226 MB/s
> lsx:     6395 MB/s
> int64x4: 2147 MB/s

Performance as measured by raid6test:

> raid6: lasx     gen() 25109 MB/s
> raid6: lsx      gen() 13233 MB/s
> raid6: int64x8  gen()  4164 MB/s
> raid6: int64x4  gen()  6005 MB/s
> raid6: int64x2  gen()  5781 MB/s
> raid6: int64x1  gen()  4119 MB/s
> raid6: using algorithm lasx gen() 25109 MB/s
> raid6: .... xor() 14439 MB/s, rmw enabled

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-09-06 22:53:55 +08:00
Ariel Marcovitch
2a15de80dd idr: fix param name in idr_alloc_cyclic() doc
The relevant parameter is 'start' and not 'nextid'

Fixes: 460488c58c ("idr: Remove idr_alloc_ext")
Signed-off-by: Ariel Marcovitch <arielmarcovitch@gmail.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2023-09-05 19:01:38 -04:00
Philipp Stanner
e7716c74e3 xarray: Document necessary flag in alloc functions
Adds a new line to the docstrings of functions wrapping __xa_alloc() and
__xa_alloc_cyclic(), informing about the necessity of flag XA_FLAGS_ALLOC
being set previously.

The documentation so far says that functions wrapping __xa_alloc() and
__xa_alloc_cyclic() are supposed to return either -ENOMEM or -EBUSY in
case of an error. If the xarray has been initialized without the flag
XA_FLAGS_ALLOC, however, they fail with a different, undocumented error
code.

As hinted at in Documentation/core-api/xarray.rst, wrappers around these
functions should only be invoked when the flag has been set. The
functions' documentation should reflect that as well.

Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2023-09-05 19:01:38 -04:00
Linus Torvalds
3c31041e37 printk changes for 6.6
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Merge tag 'printk-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Do not try to get the console lock when it is not need or useful in
   panic()

 - Replace the global console_suspended state by a per-console flag

 - Export symbols needed for dumping the raw printk buffer in panic()

 - Fix documentation of printf formats for integer types

 - Moved Sergey Senozhatsky to the reviewer role

 - Misc cleanups

* tag 'printk-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: export symbols for debug modules
  lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix()
  printk: ringbuffer: Fix truncating buffer size min_t cast
  printk: Rename abandon_console_lock_in_panic() to other_cpu_in_panic()
  printk: Add per-console suspended state
  printk: Consolidate console deferred printing
  printk: Do not take console lock for console_flush_on_panic()
  printk: Keep non-panic-CPUs out of console lock
  printk: Reduce console_unblank() usage in unsafe scenarios
  kdb: Do not assume write() callback available
  docs: printk-formats: Treat char as always unsigned
  docs: printk-formats: Fix hex printing of signed values
  MAINTAINERS: adjust printk/vsprintf entries
2023-09-04 13:20:19 -07:00
Linus Torvalds
e987af4546 percpu: changes for v6.6
percpu
 * A couple cleanups by Baoquan He and Bibo Mao. The only behavior change
   is to start printing messages if we're under the warn limit for failed
   atomic allocations.
 
 percpu_counter
 * Shakeel introduced percpu counters into mm_struct which caused percpu
   allocations be on the hot path [1]. Originally I spent some time
   trying to improve the percpu allocator, but instead preferred what
   Mateusz Guzik proposed grouping at the allocation site,
   percpu_counter_init_many(). This allows a single percpu allocation to
   be shared by the counters. I like this approach because it creates a
   shared lifetime by the allocations. Additionally, I believe many inits
   have higher level synchronization requirements, like percpu_counter
   does against HOTPLUG_CPU. Therefore we can group these optimizations
   together.
 
 [1] https://lore.kernel.org/linux-mm/20221024052841.3291983-1-shakeelb@google.com/
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Merge tag 'percpu-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu

Pull percpu updates from Dennis Zhou:
 "One bigger change to percpu_counter's api allowing for init and
  destroy of multiple counters via percpu_counter_init_many() and
  percpu_counter_destroy_many(). This is used to help begin remediating
  a performance regression with percpu rss stats.

  Additionally, it seems larger core count machines are feeling the
  burden of the single threaded allocation of percpu. Mateusz is
  thinking about it and I will spend some time on it too.

  percpu:

   - A couple cleanups by Baoquan He and Bibo Mao. The only behavior
     change is to start printing messages if we're under the warn limit
     for failed atomic allocations.

  percpu_counter:

   - Shakeel introduced percpu counters into mm_struct which caused
     percpu allocations be on the hot path [1]. Originally I spent some
     time trying to improve the percpu allocator, but instead preferred
     what Mateusz Guzik proposed grouping at the allocation site,
     percpu_counter_init_many(). This allows a single percpu allocation
     to be shared by the counters. I like this approach because it
     creates a shared lifetime by the allocations. Additionally, I
     believe many inits have higher level synchronization requirements,
     like percpu_counter does against HOTPLUG_CPU. Therefore we can
     group these optimizations together"

Link: https://lore.kernel.org/linux-mm/20221024052841.3291983-1-shakeelb@google.com/ [1]

* tag 'percpu-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu:
  kernel/fork: group allocation/free of per-cpu counters for mm struct
  pcpcntr: add group allocation/free
  mm/percpu.c: print error message too if atomic alloc failed
  mm/percpu.c: optimize the code in pcpu_setup_first_chunk() a little bit
  mm/percpu.c: remove redundant check
  mm/percpu: Remove some local variables in pcpu_populate_pte
2023-09-01 15:44:45 -07:00
Linus Torvalds
1c9f8dff62 Char/Misc driver changes for 6.6-rc1
Here is the big set of char/misc and other small driver subsystem
 changes for 6.6-rc1.
 
 Stuff all over the place here, lots of driver updates and changes and
 new additions.  Short summary is:
   - new IIO drivers and updates
   - Interconnect driver updates
   - fpga driver updates and additions
   - fsi driver updates
   - mei driver updates
   - coresight driver updates
   - nvmem driver updates
   - counter driver updates
   - lots of smaller misc and char driver updates and additions
 
 All of these have been in linux-next for a long time with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big set of char/misc and other small driver subsystem
  changes for 6.6-rc1.

  Stuff all over the place here, lots of driver updates and changes and
  new additions. Short summary is:

   - new IIO drivers and updates

   - Interconnect driver updates

   - fpga driver updates and additions

   - fsi driver updates

   - mei driver updates

   - coresight driver updates

   - nvmem driver updates

   - counter driver updates

   - lots of smaller misc and char driver updates and additions

  All of these have been in linux-next for a long time with no reported
  problems"

* tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits)
  nvmem: core: Notify when a new layout is registered
  nvmem: core: Do not open-code existing functions
  nvmem: core: Return NULL when no nvmem layout is found
  nvmem: core: Create all cells before adding the nvmem device
  nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
  nvmem: sec-qfprom: Add Qualcomm secure QFPROM support
  dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom
  dt-bindings: nvmem: Add compatible for QCM2290
  nvmem: Kconfig: Fix typo "drive" -> "driver"
  nvmem: Explicitly include correct DT includes
  nvmem: add new NXP QorIQ eFuse driver
  dt-bindings: nvmem: Add t1023-sfp efuse support
  dt-bindings: nvmem: qfprom: Add compatible for MSM8226
  nvmem: uniphier: Use devm_platform_get_and_ioremap_resource()
  nvmem: qfprom: do some cleanup
  nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource()
  nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource()
  nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource()
  nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource()
  nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource()
  ...
2023-09-01 09:53:54 -07:00
Linus Torvalds
28a4f91f5f Driver core changes for 6.6-rc1
Here is a small set of driver core updates and additions for 6.6-rc1.
 
 Included in here are:
   - stable kernel documentation updates
   - class structure const work from Ivan on various subsystems
   - kernfs tweaks
   - driver core tests!
   - kobject sanity cleanups
   - kobject structure reordering to save space
   - driver core error code handling fixups
   - other minor driver core cleanups
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is a small set of driver core updates and additions for 6.6-rc1.

  Included in here are:

   - stable kernel documentation updates

   - class structure const work from Ivan on various subsystems

   - kernfs tweaks

   - driver core tests!

   - kobject sanity cleanups

   - kobject structure reordering to save space

   - driver core error code handling fixups

   - other minor driver core cleanups

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

* tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits)
  driver core: Call in reversed order in device_platform_notify_remove()
  driver core: Return proper error code when dev_set_name() fails
  kobject: Remove redundant checks for whether ktype is NULL
  kobject: Add sanity check for kset->kobj.ktype in kset_register()
  drivers: base: test: Add missing MODULE_* macros to root device tests
  drivers: base: test: Add missing MODULE_* macros for platform devices tests
  drivers: base: Free devm resources when unregistering a device
  drivers: base: Add basic devm tests for platform devices
  drivers: base: Add basic devm tests for root devices
  kernfs: fix missing kernfs_iattr_rwsem locking
  docs: stable-kernel-rules: mention that regressions must be prevented
  docs: stable-kernel-rules: fine-tune various details
  docs: stable-kernel-rules: make the examples for option 1 a proper list
  docs: stable-kernel-rules: move text around to improve flow
  docs: stable-kernel-rules: improve structure by changing headlines
  base/node: Remove duplicated include
  kernfs: attach uuid for every kernfs and report it in fsid
  kernfs: add stub helper for kernfs_generic_poll()
  x86/resctrl: make pseudo_lock_class a static const structure
  x86/MSR: make msr_class a static const structure
  ...
2023-09-01 09:43:18 -07:00
Linus Torvalds
e0152e7481 RISC-V Patches for the 6.6 Merge Window, Part 1
* Support for the new "riscv,isa-extensions" and "riscv,isa-base" device
   tree interfaces for probing extensions.
 * Support for userspace access to the performance counters.
 * Support for more instructions in kprobes.
 * Crash kernels can be allocated above 4GiB.
 * Support for KCFI.
 * Support for ELFs in !MMU configurations.
 * ARCH_KMALLOC_MINALIGN has been reduced to 8.
 * mmap() defaults to sv48-sized addresses, with longer addresses hidden
   behind a hint (similar to Arm and Intel).
 * Also various fixes and cleanups.
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Merge tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for the new "riscv,isa-extensions" and "riscv,isa-base"
   device tree interfaces for probing extensions

 - Support for userspace access to the performance counters

 - Support for more instructions in kprobes

 - Crash kernels can be allocated above 4GiB

 - Support for KCFI

 - Support for ELFs in !MMU configurations

 - ARCH_KMALLOC_MINALIGN has been reduced to 8

 - mmap() defaults to sv48-sized addresses, with longer addresses hidden
   behind a hint (similar to Arm and Intel)

 - Also various fixes and cleanups

* tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
  lib/Kconfig.debug: Restrict DEBUG_INFO_SPLIT for RISC-V
  riscv: support PREEMPT_DYNAMIC with static keys
  riscv: Move create_tmp_mapping() to init sections
  riscv: Mark KASAN tmp* page tables variables as static
  riscv: mm: use bitmap_zero() API
  riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B
  riscv: remove redundant mv instructions
  RISC-V: mm: Document mmap changes
  RISC-V: mm: Update pgtable comment documentation
  RISC-V: mm: Add tests for RISC-V mm
  RISC-V: mm: Restrict address space for sv39,sv48,sv57
  riscv: enable DMA_BOUNCE_UNALIGNED_KMALLOC for !dma_coherent
  riscv: allow kmalloc() caches aligned to the smallest value
  riscv: support the elf-fdpic binfmt loader
  binfmt_elf_fdpic: support 64-bit systems
  riscv: Allow CONFIG_CFI_CLANG to be selected
  riscv/purgatory: Disable CFI
  riscv: Add CFI error handling
  riscv: Add ftrace_stub_graph
  riscv: Add types to indirectly called assembly functions
  ...
2023-09-01 08:09:48 -07:00
Nathan Chancellor
89775a27ff
lib/Kconfig.debug: Restrict DEBUG_INFO_SPLIT for RISC-V
When building for ARCH=riscv using LLVM < 14, there is an error with
CONFIG_DEBUG_INFO_SPLIT=y:

  error: A dwo section may not contain relocations

This was worked around in LLVM 15 by disallowing '-gsplit-dwarf' with
'-mrelax' (the default), so CONFIG_DEBUG_INFO_SPLIT is not selectable
with newer versions of LLVM:

  $ clang --target=riscv64-linux-gnu -gsplit-dwarf -c -o /dev/null -x c /dev/null
  clang: error: -gsplit-dwarf is unsupported with RISC-V linker relaxation (-mrelax)

GCC silently had a similar issue that was resolved with GCC 12.x.
Restrict CONFIG_DEBUG_INFO_SPLIT for RISC-V when using LLVM or GCC <
12.x to avoid these known issues.

Link: https://github.com/ClangBuiltLinux/linux/issues/1914
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99090
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/all/202308090204.9yZffBWo-lkp@intel.com/
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Link: https://lore.kernel.org/r/20230816-riscv-debug_info_split-v1-1-d1019d6ccc11@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-31 00:18:37 -07:00
Jisheng Zhang
3ed8513cae
riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B
Allow to force all function address 64B aligned as it is possible for
other architectures. This may be useful when verify if performance
bump is caused by function alignment changes.

Before commit 1bf18da621 ("lib/Kconfig.debug: add ARCH dependency
for FUNCTION_ALIGN option"), riscv supports enabling the
DEBUG_FORCE_FUNCTION_ALIGN_64B option, but after that commit, each
arch needs to claim the support explicitly.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230727160356.3874-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-08-31 00:18:26 -07:00
Linus Torvalds
f8fd5c2483 This pull request is full of clk driver changes. In fact, there aren't any
changes to the clk framework this time around. That's probably because everyone
 was on vacation (yours truly included). We did lose a couple clk drivers this
 time around because nobody was using those devices. That skews the diffstat a
 bit, but either way, nothing looks out of the ordinary here. The usual suspects
 are chugging along adding support for more SoCs and fixing bugs.
 
 If I had to choose, I'd say the theme for the past few months has been
 "polish". There's quite a few patches that migrate to
 devm_platform_ioremap_resource() in here. And there's more than a handful of
 patches that move the NR_CLKS define from the DT binding header to the driver.
 There's even patches that migrate drivers to use clk_parent_data and clk_hw to
 describe clk tree topology. It seems that the spring (summer?) cleaning bug got
 some folks, or the semiconductor shortage finally hit the software side.
 
 New Drivers:
  - StarFive JH7110 SoC clock drivers
  - Qualcomm IPQ5018 Global Clock Controller driver
  - Versa3 clk generator to support 48KHz playback/record with audio codec on
    RZ/G2L SMARC EVK
 
 Removed Drivers:
  - Remove non-OF mmp clk drivers
  - Remove OXNAS clk driver
 
 Updates:
  - Add __counted_by to struct clk_hw_onecell_data and struct spmi_pmic_div_clk_cc
  - Move defines for numbers of clks (NR_CLKS) from DT headers to drivers
  - Introduce kstrdup_and_replace() and use it
  - Add PLL rates for Rockchip rk3568
  - Add the display clock tree for Rockchip rv1126
  - Add Audio Clock Generator (ADG) clocks on Renesas R-Car Gen3 and RZ/G2 SoCs
  - Convert sun9i-mmc clock to use devm_platform_get_and_ioremap_resource()
  - Fix function name in a comment in ccu_mmc_timing.c
  - Parameter name correction for ccu_nkm_round_rate()
  - Implement CLK_SET_RATE_PARENT for Allwinner NKM clocks, i.e. consider alternative
    parent rates when determining clock rates
  - Set CLK_SET_RATE_PARENT for Allwinner A64 pll-mipi
  - Support finding closest (as opposed to closest but not higher) clock rate
    for NM, NKM, mux and div type clocks, as use it for Allwinner A64 pll-video0
  - Prefer current parent rate if able to generate ideal clock rate for Allwinner NKM clocks
  - Clean up Qualcomm SMD RPM driver, with interconnect bus clocks moved out to
    the interconnect drivers
  - Fix various PM runtime bugs across many Qualcomm clk drivers
  - Migrate Qualcomm MDM9615 is to parent_hw and parent_data
  - Add network related resets on Qualcomm IPQ4019
  - Add a couple missing USB related clocks to Qualcomm IPQ9574
  - Add missing gpll0_sleep_clk_src to Qualcomm MSM8917 global clock controller
  - In the Qualcomm QDU1000 global clock controller, GDSCs, clkrefs, and GPLL1 are
    added, while PCIe pipe clock, SDCC rcg ops are corrected
  - Add missing GDSCs to and correct GDSCs for the SC8280XP global clock controller driver
  - Support retention for the Qualcomm SC8280XP display clock controller GDSCs.
  - Qualcommm's SDCC apps_clk_src is marked with CLK_OPS_PARENT_ENABLE to fix
    issues with missing parent clocks across sc7180, sm7150, sm6350 and sm8250,
    while sm8450 is corrected to use floor ops
  - Correct Qualcomm SM6350 GPU clock controller's clock supplies
  - Drop unwanted clocks from the Qualcomm IPQ5332 GCC driver
  - Add missing OXILICX GDSC to Qualcomm MSM8226 GCC
  - Change the delay in the Qualcomm reset controller to fsleep() for correctness
  - Extend the Qualcomm SM83550 Video clock controller to support SC8280XP
  - Add graphics clock support on Renesas RZ/G2M, RZ/G2N, RZ/G2E, and R-Car H3,
    M3-W, and M3-N SoCs
  - Add Clocked Serial Interface (CSI) clocks on Renesas RZ/V2M
  - Add PWM (MTU3) clock and reset on Renesas RZ/G2UL and RZ/Five
  - Add the PDM IPC clock for i.MX93
  - Add 519.75MHz frequency support for i.MX9 PLL
  - Simplify the .determine_rate() implementation for i.MX GPR mux
  - Make the i.MX8QXP LPCG clock use devm_platform_ioremap_resource()
  - Add the audio mux clock to i.MX8
  - Fix the SPLL2 MULT range for PLLv4
  - Update the SPLL2 type in i.MX8ULP
  - Fix the SAI4 clock on i.MX8MP
  - Add silicon revision print for i.MX25 on clocks init
  - Drop the return value from __mx25_clocks_init()
  - Fix the clock pauses on no-op set_rate for i.MX8M composite clock
  - Drop restrictions for i.MX PLL14xx and fix its max prediv value
  - Drop the 393216000 and 361267200 from i.MX PLL14xx rate table to allow
    glitch free switching
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk subsystem updates from Stephen Boyd:
 "This pull request is full of clk driver changes. In fact, there aren't
  any changes to the clk framework this time around. That's probably
  because everyone was on vacation (yours truly included). We did lose a
  couple clk drivers this time around because nobody was using those
  devices. That skews the diffstat a bit, but either way, nothing looks
  out of the ordinary here. The usual suspects are chugging along adding
  support for more SoCs and fixing bugs.

  If I had to choose, I'd say the theme for the past few months has been
  "polish". There's quite a few patches that migrate to
  devm_platform_ioremap_resource() in here. And there's more than a
  handful of patches that move the NR_CLKS define from the DT binding
  header to the driver. There's even patches that migrate drivers to use
  clk_parent_data and clk_hw to describe clk tree topology. It seems
  that the spring (summer?) cleaning bug got some folks, or the
  semiconductor shortage finally hit the software side.

  New Drivers:
   - StarFive JH7110 SoC clock drivers
   - Qualcomm IPQ5018 Global Clock Controller driver
   - Versa3 clk generator to support 48KHz playback/record with audio
     codec on RZ/G2L SMARC EVK

  Removed Drivers:
   - Remove non-OF mmp clk drivers
   - Remove OXNAS clk driver

  Updates:
   - Add __counted_by to struct clk_hw_onecell_data and struct
     spmi_pmic_div_clk_cc
   - Move defines for numbers of clks (NR_CLKS) from DT headers to
     drivers
   - Introduce kstrdup_and_replace() and use it
   - Add PLL rates for Rockchip rk3568
   - Add the display clock tree for Rockchip rv1126
   - Add Audio Clock Generator (ADG) clocks on Renesas R-Car Gen3 and
     RZ/G2 SoCs
   - Convert sun9i-mmc clock to use
     devm_platform_get_and_ioremap_resource()
   - Fix function name in a comment in ccu_mmc_timing.c
   - Parameter name correction for ccu_nkm_round_rate()
   - Implement CLK_SET_RATE_PARENT for Allwinner NKM clocks, i.e.
     consider alternative parent rates when determining clock rates
   - Set CLK_SET_RATE_PARENT for Allwinner A64 pll-mipi
   - Support finding closest (as opposed to closest but not higher)
     clock rate for NM, NKM, mux and div type clocks, as use it for
     Allwinner A64 pll-video0
   - Prefer current parent rate if able to generate ideal clock rate for
     Allwinner NKM clocks
   - Clean up Qualcomm SMD RPM driver, with interconnect bus clocks
     moved out to the interconnect drivers
   - Fix various PM runtime bugs across many Qualcomm clk drivers
   - Migrate Qualcomm MDM9615 is to parent_hw and parent_data
   - Add network related resets on Qualcomm IPQ4019
   - Add a couple missing USB related clocks to Qualcomm IPQ9574
   - Add missing gpll0_sleep_clk_src to Qualcomm MSM8917 global clock
     controller
   - In the Qualcomm QDU1000 global clock controller, GDSCs, clkrefs,
     and GPLL1 are added, while PCIe pipe clock, SDCC rcg ops are
     corrected
   - Add missing GDSCs to and correct GDSCs for the SC8280XP global
     clock controller driver
   - Support retention for the Qualcomm SC8280XP display clock
     controller GDSCs.
   - Qualcommm's SDCC apps_clk_src is marked with CLK_OPS_PARENT_ENABLE
     to fix issues with missing parent clocks across sc7180, sm7150,
     sm6350 and sm8250, while sm8450 is corrected to use floor ops
   - Correct Qualcomm SM6350 GPU clock controller's clock supplies
   - Drop unwanted clocks from the Qualcomm IPQ5332 GCC driver
   - Add missing OXILICX GDSC to Qualcomm MSM8226 GCC
   - Change the delay in the Qualcomm reset controller to fsleep() for
     correctness
   - Extend the Qualcomm SM83550 Video clock controller to support
     SC8280XP
   - Add graphics clock support on Renesas RZ/G2M, RZ/G2N, RZ/G2E, and
     R-Car H3, M3-W, and M3-N SoCs
   - Add Clocked Serial Interface (CSI) clocks on Renesas RZ/V2M
   - Add PWM (MTU3) clock and reset on Renesas RZ/G2UL and RZ/Five
   - Add the PDM IPC clock for i.MX93
   - Add 519.75MHz frequency support for i.MX9 PLL
   - Simplify the .determine_rate() implementation for i.MX GPR mux
   - Make the i.MX8QXP LPCG clock use devm_platform_ioremap_resource()
   - Add the audio mux clock to i.MX8
   - Fix the SPLL2 MULT range for PLLv4
   - Update the SPLL2 type in i.MX8ULP
   - Fix the SAI4 clock on i.MX8MP
   - Add silicon revision print for i.MX25 on clocks init
   - Drop the return value from __mx25_clocks_init()
   - Fix the clock pauses on no-op set_rate for i.MX8M composite clock
   - Drop restrictions for i.MX PLL14xx and fix its max prediv value
   - Drop the 393216000 and 361267200 from i.MX PLL14xx rate table to
     allow glitch free switching"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (207 commits)
  clk: qcom: Fix SM_GPUCC_8450 dependencies
  clk: lmk04832: Support using PLL1_LD as SPI readback pin
  clk: lmk04832: Don't disable vco clock on probe fail
  clk: lmk04832: Set missing parent_names for output clocks
  clk: mvebu: Convert to devm_platform_ioremap_resource()
  clk: nuvoton: Convert to devm_platform_ioremap_resource()
  clk: socfpga: agilex: Convert to devm_platform_ioremap_resource()
  clk: ti: Use devm_platform_get_and_ioremap_resource()
  clk: mediatek: Convert to devm_platform_ioremap_resource()
  clk: hsdk-pll: Convert to devm_platform_ioremap_resource()
  clk: gemini: Convert to devm_platform_ioremap_resource()
  clk: fsl-sai: Convert to devm_platform_ioremap_resource()
  clk: bm1880: Convert to devm_platform_ioremap_resource()
  clk: axm5516: Convert to devm_platform_ioremap_resource()
  clk: actions: Convert to devm_platform_ioremap_resource()
  clk: cdce925: Remove redundant of_match_ptr()
  clk: pxa910: Move number of clocks to driver source
  clk: pxa1928: Move number of clocks to driver source
  clk: pxa168: Move number of clocks to driver source
  clk: mmp2: Move number of clocks to driver source
  ...
2023-08-30 19:53:39 -07:00
Linus Torvalds
ef2a0b7cdb Devicetree include cleanups for v6.6:
These are the remaining few clean-ups of DT related includes which
 didn't get applied to subsystem trees.
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Merge tag 'devicetree-header-cleanups-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree include cleanups from Rob Herring:
 "These are the remaining few clean-ups of DT related includes which
  didn't get applied to subsystem trees"

* tag 'devicetree-header-cleanups-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  ipmi: Explicitly include correct DT includes
  tpm: Explicitly include correct DT includes
  lib/genalloc: Explicitly include correct DT includes
  parport: Explicitly include correct DT includes
  sbus: Explicitly include correct DT includes
  mux: Explicitly include correct DT includes
  macintosh: Explicitly include correct DT includes
  hte: Explicitly include correct DT includes
  EDAC: Explicitly include correct DT includes
  clocksource: Explicitly include correct DT includes
  sparc: Explicitly include correct DT includes
  riscv: Explicitly include correct DT includes
2023-08-30 17:04:28 -07:00
Linus Torvalds
4fb0dacb78 sound updates for 6.6-rc1
We've received a fairly wide range of changes at this time, including
 for ALSA and ASoC core, but all of them are rather small changes.
 
 Here are some highlights:
 
 ALSA / ASoC Core:
 - Fixes of inconsistent locking around control API helpers
 - A few new control API functions and cleanups
 - Workarounds for potential UAFs by delayed kobj releases
 - Unified PCM copy ops with iov_iter
 - Continued efforts for ASoC API cleanups
 
 ASoC:
 - An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in
   some IIO changes
 - Create a library function for intlog10() and use it in the NAU8825
   driver
 - Convert drivers to use the more modern maple tree register cache
 - Lots of work on the SOF framework, AMD and Intel drivers, including a
   lot of cleanup and new device support
 - Standardization of the presentation of jacks from drivers
 - Provision of some generic sound card DT properties
 - Support for AMD Van Gogh, AMD machines with MAX98388 and NAU8821,
   AWInic AW88261, Cirrus Logic CS35L36 and CS42L43, various Intel
   platforms including AVS machines with ES8336 and RT5663, Mediatek
   MT7986, NXP i.MX93, RealTek RT1017 and StarFive JH7110
 
 Others:
 - New test coverage including ASoC and topology tests in KUnit;
   this also involves enabling UML builds of ALSA since that's the
   default KUnit test environment which pulls in the addition of some
   stubs to the driver
 - More enhancement of pcmtest driver
 - A few fixes / enhancements of MIDI 2.0 UMP core
 - Using PCI definitions in allover HD-audio code
 - Support for Cirrus CS35L56 and TI TAS2781 HD-audio sub-codecs
 - CS35L41 HD-audio sub-codec improvements
 - Continued emu10k1 improvements
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Merge tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "We've received a fairly wide range of changes at this time, including
  for ALSA and ASoC core, but all of them are rather small changes.

  Here are some highlights:

  ALSA / ASoC Core:
   - Fixes of inconsistent locking around control API helpers
   - A few new control API functions and cleanups
   - Workarounds for potential UAFs by delayed kobj releases
   - Unified PCM copy ops with iov_iter
   - Continued efforts for ASoC API cleanups

  ASoC:
   - An adaptor to allow use of IIO DACs and ADCs in ASoC which pulls in
     some IIO changes
   - Create a library function for intlog10() and use it in the NAU8825
     driver
   - Convert drivers to use the more modern maple tree register cache
   - Lots of work on the SOF framework, AMD and Intel drivers, including
     a lot of cleanup and new device support
   - Standardization of the presentation of jacks from drivers
   - Provision of some generic sound card DT properties
   - Support for AMD Van Gogh, AMD machines with MAX98388 and NAU8821,
     AWInic AW88261, Cirrus Logic CS35L36 and CS42L43, various Intel
     platforms including AVS machines with ES8336 and RT5663, Mediatek
     MT7986, NXP i.MX93, RealTek RT1017 and StarFive JH7110

  Others:
   - New test coverage including ASoC and topology tests in KUnit; this
     also involves enabling UML builds of ALSA since that's the default
     KUnit test environment which pulls in the addition of some stubs to
     the driver
   - More enhancement of pcmtest driver
   - A few fixes / enhancements of MIDI 2.0 UMP core
   - Using PCI definitions in allover HD-audio code
   - Support for Cirrus CS35L56 and TI TAS2781 HD-audio sub-codecs
   - CS35L41 HD-audio sub-codec improvements
   - Continued emu10k1 improvements"

* tag 'sound-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (693 commits)
  ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl
  ASoC: dwc: i2s: Fix unused functions
  ALSA: usb-audio: Don't try to submit URBs after disconnection
  ALSA: emu10k1: add separate documentation for E-MU cards
  ALSA: emu10k1: more documentation updates
  ALSA: emu10k1: de-duplicate audigy-mixer.rst vs. sb-live-mixer.rst
  ALSA: ump: Fix -Wformat-truncation warnings
  ALSA: hda: Add missing dependency on CONFIG_EFI for Cirrus/TI sub-codecs
  ALSA: doc: Fix missing backquote in midi-2.0.rst
  ALSA: hda/realtek: Add quirk for mute LEDs on HP ENVY x360 15-eu0xxx
  ALSA: hda/tas2781: Switch back to use struct i2c_driver's .probe()
  ASoC: soc-core.c: Do not error if a DAI link component is not found
  ASoC: codecs: Fix error code in aw88261_i2c_probe()
  ASoC: audio-graph-card.c: move audio_graph_parse_of()
  ASoC: cs42l43: Use new-style PM runtime macros
  ALSA: documentation: Add description for USB MIDI 2.0 gadget driver
  ALSA: ump: Don't create unused substreams for static blocks
  ALSA: ump: Fill group names for legacy rawmidi substreams
  ALSA: usb-audio: Attach legacy rawmidi after probing all UMP EPs
  ALSA: ac97: Fix possible error value of *rac97
  ...
2023-08-30 13:45:05 -07:00
Huacai Chen
9d1785590b Merge tag 'md-next-20230814-resend' into loongarch-next
LoongArch architecture changes for 6.5 (raid5/6 optimization) depend on
the md changes to fix build and work, so merge them to create a base.
2023-08-30 17:35:54 +08:00
Linus Torvalds
3d3dfeb3ae for-6.6/block-2023-08-28
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Merge tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:
 "Pretty quiet round for this release. This contains:

   - Add support for zoned storage to ublk (Andreas, Ming)

   - Series improving performance for drivers that mark themselves as
     needing a blocking context for issue (Bart)

   - Cleanup the flush logic (Chengming)

   - sed opal keyring support (Greg)

   - Fixes and improvements to the integrity support (Jinyoung)

   - Add some exports for bcachefs that we can hopefully delete again in
     the future (Kent)

   - deadline throttling fix (Zhiguo)

   - Series allowing building the kernel without buffer_head support
     (Christoph)

   - Sanitize the bio page adding flow (Christoph)

   - Write back cache fixes (Christoph)

   - MD updates via Song:
      - Fix perf regression for raid0 large sequential writes (Jan)
      - Fix split bio iostat for raid0 (David)
      - Various raid1 fixes (Heinz, Xueshi)
      - raid6test build fixes (WANG)
      - Deprecate bitmap file support (Christoph)
      - Fix deadlock with md sync thread (Yu)
      - Refactor md io accounting (Yu)
      - Various non-urgent fixes (Li, Yu, Jack)

   - Various fixes and cleanups (Arnd, Azeem, Chengming, Damien, Li,
     Ming, Nitesh, Ruan, Tejun, Thomas, Xu)"

* tag 'for-6.6/block-2023-08-28' of git://git.kernel.dk/linux: (113 commits)
  block: use strscpy() to instead of strncpy()
  block: sed-opal: keyring support for SED keys
  block: sed-opal: Implement IOC_OPAL_REVERT_LSP
  block: sed-opal: Implement IOC_OPAL_DISCOVERY
  blk-mq: prealloc tags when increase tagset nr_hw_queues
  blk-mq: delete redundant tagset map update when fallback
  blk-mq: fix tags leak when shrink nr_hw_queues
  ublk: zoned: support REQ_OP_ZONE_RESET_ALL
  md: raid0: account for split bio in iostat accounting
  md/raid0: Fix performance regression for large sequential writes
  md/raid0: Factor out helper for mapping and submitting a bio
  md raid1: allow writebehind to work on any leg device set WriteMostly
  md/raid1: hold the barrier until handle_read_error() finishes
  md/raid1: free the r1bio before waiting for blocked rdev
  md/raid1: call free_r1bio() before allow_barrier() in raid_end_bio_io()
  blk-cgroup: Fix NULL deref caused by blkg_policy_data being installed before init
  drivers/rnbd: restore sysfs interface to rnbd-client
  md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid()
  raid6: test: only check for Altivec if building on powerpc hosts
  raid6: test: make sure all intermediate and artifact files are .gitignored
  ...
2023-08-29 20:21:42 -07:00
Linus Torvalds
d68b4b6f30 - An extensive rework of kexec and crash Kconfig from Eric DeVolder
("refactor Kconfig to consolidate KEXEC and CRASH options").
 
 - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
   couple of macros to args.h").
 
 - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
   commands").
 
 - vsprintf inclusion rationalization from Andy Shevchenko
   ("lib/vsprintf: Rework header inclusions").
 
 - Switch the handling of kdump from a udev scheme to in-kernel handling,
   by Eric DeVolder ("crash: Kernel handling of CPU and memory hot
   un/plug").
 
 - Many singleton patches to various parts of the tree
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Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - An extensive rework of kexec and crash Kconfig from Eric DeVolder
   ("refactor Kconfig to consolidate KEXEC and CRASH options")

 - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
   couple of macros to args.h")

 - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
   commands")

 - vsprintf inclusion rationalization from Andy Shevchenko
   ("lib/vsprintf: Rework header inclusions")

 - Switch the handling of kdump from a udev scheme to in-kernel
   handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
   hot un/plug")

 - Many singleton patches to various parts of the tree

* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
  document while_each_thread(), change first_tid() to use for_each_thread()
  drivers/char/mem.c: shrink character device's devlist[] array
  x86/crash: optimize CPU changes
  crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
  crash: hotplug support for kexec_load()
  x86/crash: add x86 crash hotplug support
  crash: memory and CPU hotplug sysfs attributes
  kexec: exclude elfcorehdr from the segment digest
  crash: add generic infrastructure for crash hotplug support
  crash: move a few code bits to setup support of crash hotplug
  kstrtox: consistently use _tolower()
  kill do_each_thread()
  nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
  scripts/bloat-o-meter: count weak symbol sizes
  treewide: drop CONFIG_EMBEDDED
  lockdep: fix static memory detection even more
  lib/vsprintf: declare no_hash_pointers in sprintf.h
  lib/vsprintf: split out sprintf() and friends
  kernel/fork: stop playing lockless games for exe_file replacement
  adfs: delete unused "union adfs_dirtail" definition
  ...
2023-08-29 14:53:51 -07:00
Linus Torvalds
b96a3e9142 - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")
- Peter Xu has a series (mm/gup: Unify hugetlb, speed up thp") which
   reduces the special-case code for handling hugetlb pages in GUP.  It
   also speeds up GUP handling of transparent hugepages.
 
 - Peng Zhang provides some maple tree speedups ("Optimize the fast path
   of mas_store()").
 
 - Sergey Senozhatsky has improved te performance of zsmalloc during
   compaction (zsmalloc: small compaction improvements").
 
 - Domenico Cerasuolo has developed additional selftest code for zswap
   ("selftests: cgroup: add zswap test program").
 
 - xu xin has doe some work on KSM's handling of zero pages.  These
   changes are mainly to enable the user to better understand the
   effectiveness of KSM's treatment of zero pages ("ksm: support tracking
   KSM-placed zero-pages").
 
 - Jeff Xu has fixes the behaviour of memfd's
   MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED sysctl ("mm/memfd: fix sysctl
   MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED").
 
 - David Howells has fixed an fscache optimization ("mm, netfs, fscache:
   Stop read optimisation when folio removed from pagecache").
 
 - Axel Rasmussen has given userfaultfd the ability to simulate memory
   poisoning ("add UFFDIO_POISON to simulate memory poisoning with UFFD").
 
 - Miaohe Lin has contributed some routine maintenance work on the
   memory-failure code ("mm: memory-failure: remove unneeded PageHuge()
   check").
 
 - Peng Zhang has contributed some maintenance work on the maple tree
   code ("Improve the validation for maple tree and some cleanup").
 
 - Hugh Dickins has optimized the collapsing of shmem or file pages into
   THPs ("mm: free retracted page table by RCU").
 
 - Jiaqi Yan has a patch series which permits us to use the healthy
   subpages within a hardware poisoned huge page for general purposes
   ("Improve hugetlbfs read on HWPOISON hugepages").
 
 - Kemeng Shi has done some maintenance work on the pagetable-check code
   ("Remove unused parameters in page_table_check").
 
 - More folioification work from Matthew Wilcox ("More filesystem folio
   conversions for 6.6"), ("Followup folio conversions for zswap").  And
   from ZhangPeng ("Convert several functions in page_io.c to use a
   folio").
 
 - page_ext cleanups from Kemeng Shi ("minor cleanups for page_ext").
 
 - Baoquan He has converted some architectures to use the GENERIC_IOREMAP
   ioremap()/iounmap() code ("mm: ioremap: Convert architectures to take
   GENERIC_IOREMAP way").
 
 - Anshuman Khandual has optimized arm64 tlb shootdown ("arm64: support
   batched/deferred tlb shootdown during page reclamation/migration").
 
 - Better maple tree lockdep checking from Liam Howlett ("More strict
   maple tree lockdep").  Liam also developed some efficiency improvements
   ("Reduce preallocations for maple tree").
 
 - Cleanup and optimization to the secondary IOMMU TLB invalidation, from
   Alistair Popple ("Invalidate secondary IOMMU TLB on permission
   upgrade").
 
 - Ryan Roberts fixes some arm64 MM selftest issues ("selftests/mm fixes
   for arm64").
 
 - Kemeng Shi provides some maintenance work on the compaction code ("Two
   minor cleanups for compaction").
 
 - Some reduction in mmap_lock pressure from Matthew Wilcox ("Handle most
   file-backed faults under the VMA lock").
 
 - Aneesh Kumar contributes code to use the vmemmap optimization for DAX
   on ppc64, under some circumstances ("Add support for DAX vmemmap
   optimization for ppc64").
 
 - page-ext cleanups from Kemeng Shi ("add page_ext_data to get client
   data in page_ext"), ("minor cleanups to page_ext header").
 
 - Some zswap cleanups from Johannes Weiner ("mm: zswap: three
   cleanups").
 
 - kmsan cleanups from ZhangPeng ("minor cleanups for kmsan").
 
 - VMA handling cleanups from Kefeng Wang ("mm: convert to
   vma_is_initial_heap/stack()").
 
 - DAMON feature work from SeongJae Park ("mm/damon/sysfs-schemes:
   implement DAMOS tried total bytes file"), ("Extend DAMOS filters for
   address ranges and DAMON monitoring targets").
 
 - Compaction work from Kemeng Shi ("Fixes and cleanups to compaction").
 
 - Liam Howlett has improved the maple tree node replacement code
   ("maple_tree: Change replacement strategy").
 
 - ZhangPeng has a general code cleanup - use the K() macro more widely
   ("cleanup with helper macro K()").
 
 - Aneesh Kumar brings memmap-on-memory to ppc64 ("Add support for memmap
   on memory feature on ppc64").
 
 - pagealloc cleanups from Kemeng Shi ("Two minor cleanups for pcp list
   in page_alloc"), ("Two minor cleanups for get pageblock migratetype").
 
 - Vishal Moola introduces a memory descriptor for page table tracking,
   "struct ptdesc" ("Split ptdesc from struct page").
 
 - memfd selftest maintenance work from Aleksa Sarai ("memfd: cleanups
   for vm.memfd_noexec").
 
 - MM include file rationalization from Hugh Dickins ("arch: include
   asm/cacheflush.h in asm/hugetlb.h").
 
 - THP debug output fixes from Hugh Dickins ("mm,thp: fix sloppy text
   output").
 
 - kmemleak improvements from Xiaolei Wang ("mm/kmemleak: use
   object_cache instead of kmemleak_initialized").
 
 - More folio-related cleanups from Matthew Wilcox ("Remove _folio_dtor
   and _folio_order").
 
 - A VMA locking scalability improvement from Suren Baghdasaryan
   ("Per-VMA lock support for swap and userfaults").
 
 - pagetable handling cleanups from Matthew Wilcox ("New page table range
   API").
 
 - A batch of swap/thp cleanups from David Hildenbrand ("mm/swap: stop
   using page->private on tail pages for THP_SWAP + cleanups").
 
 - Cleanups and speedups to the hugetlb fault handling from Matthew
   Wilcox ("Change calling convention for ->huge_fault").
 
 - Matthew Wilcox has also done some maintenance work on the MM subsystem
   documentation ("Improve mm documentation").
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Merge tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Some swap cleanups from Ma Wupeng ("fix WARN_ON in
   add_to_avail_list")

 - Peter Xu has a series (mm/gup: Unify hugetlb, speed up thp") which
   reduces the special-case code for handling hugetlb pages in GUP. It
   also speeds up GUP handling of transparent hugepages.

 - Peng Zhang provides some maple tree speedups ("Optimize the fast path
   of mas_store()").

 - Sergey Senozhatsky has improved te performance of zsmalloc during
   compaction (zsmalloc: small compaction improvements").

 - Domenico Cerasuolo has developed additional selftest code for zswap
   ("selftests: cgroup: add zswap test program").

 - xu xin has doe some work on KSM's handling of zero pages. These
   changes are mainly to enable the user to better understand the
   effectiveness of KSM's treatment of zero pages ("ksm: support
   tracking KSM-placed zero-pages").

 - Jeff Xu has fixes the behaviour of memfd's
   MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED sysctl ("mm/memfd: fix sysctl
   MEMFD_NOEXEC_SCOPE_NOEXEC_ENFORCED").

 - David Howells has fixed an fscache optimization ("mm, netfs, fscache:
   Stop read optimisation when folio removed from pagecache").

 - Axel Rasmussen has given userfaultfd the ability to simulate memory
   poisoning ("add UFFDIO_POISON to simulate memory poisoning with
   UFFD").

 - Miaohe Lin has contributed some routine maintenance work on the
   memory-failure code ("mm: memory-failure: remove unneeded PageHuge()
   check").

 - Peng Zhang has contributed some maintenance work on the maple tree
   code ("Improve the validation for maple tree and some cleanup").

 - Hugh Dickins has optimized the collapsing of shmem or file pages into
   THPs ("mm: free retracted page table by RCU").

 - Jiaqi Yan has a patch series which permits us to use the healthy
   subpages within a hardware poisoned huge page for general purposes
   ("Improve hugetlbfs read on HWPOISON hugepages").

 - Kemeng Shi has done some maintenance work on the pagetable-check code
   ("Remove unused parameters in page_table_check").

 - More folioification work from Matthew Wilcox ("More filesystem folio
   conversions for 6.6"), ("Followup folio conversions for zswap"). And
   from ZhangPeng ("Convert several functions in page_io.c to use a
   folio").

 - page_ext cleanups from Kemeng Shi ("minor cleanups for page_ext").

 - Baoquan He has converted some architectures to use the
   GENERIC_IOREMAP ioremap()/iounmap() code ("mm: ioremap: Convert
   architectures to take GENERIC_IOREMAP way").

 - Anshuman Khandual has optimized arm64 tlb shootdown ("arm64: support
   batched/deferred tlb shootdown during page reclamation/migration").

 - Better maple tree lockdep checking from Liam Howlett ("More strict
   maple tree lockdep"). Liam also developed some efficiency
   improvements ("Reduce preallocations for maple tree").

 - Cleanup and optimization to the secondary IOMMU TLB invalidation,
   from Alistair Popple ("Invalidate secondary IOMMU TLB on permission
   upgrade").

 - Ryan Roberts fixes some arm64 MM selftest issues ("selftests/mm fixes
   for arm64").

 - Kemeng Shi provides some maintenance work on the compaction code
   ("Two minor cleanups for compaction").

 - Some reduction in mmap_lock pressure from Matthew Wilcox ("Handle
   most file-backed faults under the VMA lock").

 - Aneesh Kumar contributes code to use the vmemmap optimization for DAX
   on ppc64, under some circumstances ("Add support for DAX vmemmap
   optimization for ppc64").

 - page-ext cleanups from Kemeng Shi ("add page_ext_data to get client
   data in page_ext"), ("minor cleanups to page_ext header").

 - Some zswap cleanups from Johannes Weiner ("mm: zswap: three
   cleanups").

 - kmsan cleanups from ZhangPeng ("minor cleanups for kmsan").

 - VMA handling cleanups from Kefeng Wang ("mm: convert to
   vma_is_initial_heap/stack()").

 - DAMON feature work from SeongJae Park ("mm/damon/sysfs-schemes:
   implement DAMOS tried total bytes file"), ("Extend DAMOS filters for
   address ranges and DAMON monitoring targets").

 - Compaction work from Kemeng Shi ("Fixes and cleanups to compaction").

 - Liam Howlett has improved the maple tree node replacement code
   ("maple_tree: Change replacement strategy").

 - ZhangPeng has a general code cleanup - use the K() macro more widely
   ("cleanup with helper macro K()").

 - Aneesh Kumar brings memmap-on-memory to ppc64 ("Add support for
   memmap on memory feature on ppc64").

 - pagealloc cleanups from Kemeng Shi ("Two minor cleanups for pcp list
   in page_alloc"), ("Two minor cleanups for get pageblock
   migratetype").

 - Vishal Moola introduces a memory descriptor for page table tracking,
   "struct ptdesc" ("Split ptdesc from struct page").

 - memfd selftest maintenance work from Aleksa Sarai ("memfd: cleanups
   for vm.memfd_noexec").

 - MM include file rationalization from Hugh Dickins ("arch: include
   asm/cacheflush.h in asm/hugetlb.h").

 - THP debug output fixes from Hugh Dickins ("mm,thp: fix sloppy text
   output").

 - kmemleak improvements from Xiaolei Wang ("mm/kmemleak: use
   object_cache instead of kmemleak_initialized").

 - More folio-related cleanups from Matthew Wilcox ("Remove _folio_dtor
   and _folio_order").

 - A VMA locking scalability improvement from Suren Baghdasaryan
   ("Per-VMA lock support for swap and userfaults").

 - pagetable handling cleanups from Matthew Wilcox ("New page table
   range API").

 - A batch of swap/thp cleanups from David Hildenbrand ("mm/swap: stop
   using page->private on tail pages for THP_SWAP + cleanups").

 - Cleanups and speedups to the hugetlb fault handling from Matthew
   Wilcox ("Change calling convention for ->huge_fault").

 - Matthew Wilcox has also done some maintenance work on the MM
   subsystem documentation ("Improve mm documentation").

* tag 'mm-stable-2023-08-28-18-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (489 commits)
  maple_tree: shrink struct maple_tree
  maple_tree: clean up mas_wr_append()
  secretmem: convert page_is_secretmem() to folio_is_secretmem()
  nios2: fix flush_dcache_page() for usage from irq context
  hugetlb: add documentation for vma_kernel_pagesize()
  mm: add orphaned kernel-doc to the rst files.
  mm: fix clean_record_shared_mapping_range kernel-doc
  mm: fix get_mctgt_type() kernel-doc
  mm: fix kernel-doc warning from tlb_flush_rmaps()
  mm: remove enum page_entry_size
  mm: allow ->huge_fault() to be called without the mmap_lock held
  mm: move PMD_ORDER to pgtable.h
  mm: remove checks for pte_index
  memcg: remove duplication detection for mem_cgroup_uncharge_swap
  mm/huge_memory: work on folio->swap instead of page->private when splitting folio
  mm/swap: inline folio_set_swap_entry() and folio_swap_entry()
  mm/swap: use dedicated entry for swap in folio
  mm/swap: stop using page->private on tail pages for THP_SWAP
  selftests/mm: fix WARNING comparing pointer to 0
  selftests: cgroup: fix test_kmem_memcg_deletion kernel mem check
  ...
2023-08-29 14:25:26 -07:00
Linus Torvalds
bd6c11bc43 Networking changes for 6.6.
Core
 ----
 
  - Increase size limits for to-be-sent skb frag allocations. This
    allows tun, tap devices and packet sockets to better cope with large
    writes operations.
 
  - Store netdevs in an xarray, to simplify iterating over netdevs.
 
  - Refactor nexthop selection for multipath routes.
 
  - Improve sched class lifetime handling.
 
  - Add backup nexthop ID support for bridge.
 
  - Implement drop reasons support in openvswitch.
 
  - Several data races annotations and fixes.
 
  - Constify the sk parameter of routing functions.
 
  - Prepend kernel version to netconsole message.
 
 Protocols
 ---------
 
  - Implement support for TCP probing the peer being under memory
    pressure.
 
  - Remove hard coded limitation on IPv6 specific info placement
    inside the socket struct.
 
  - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated
    per socket scaling factor.
 
  - Scaling-up the IPv6 expired route GC via a separated list of
    expiring routes.
 
  - In-kernel support for the TLS alert protocol.
 
  - Better support for UDP reuseport with connected sockets.
 
  - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
    header size.
 
  - Get rid of additional ancillary per MPTCP connection struct socket.
 
  - Implement support for BPF-based MPTCP packet schedulers.
 
  - Format MPTCP subtests selftests results in TAP.
 
  - Several new SMC 2.1 features including unique experimental options,
    max connections per lgr negotiation, max links per lgr negotiation.
 
 BPF
 ---
 
  - Multi-buffer support in AF_XDP.
 
  - Add multi uprobe BPF links for attaching multiple uprobes
    and usdt probes, which is significantly faster and saves extra fds.
 
  - Implement an fd-based tc BPF attach API (TCX) and BPF link support on
    top of it.
 
  - Add SO_REUSEPORT support for TC bpf_sk_assign.
 
  - Support new instructions from cpu v4 to simplify the generated code and
    feature completeness, for x86, arm64, riscv64.
 
  - Support defragmenting IPv(4|6) packets in BPF.
 
  - Teach verifier actual bounds of bpf_get_smp_processor_id()
    and fix perf+libbpf issue related to custom section handling.
 
  - Introduce bpf map element count and enable it for all program types.
 
  - Add a BPF hook in sys_socket() to change the protocol ID
    from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy.
 
  - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress.
 
  - Add uprobe support for the bpf_get_func_ip helper.
 
  - Check skb ownership against full socket.
 
  - Support for up to 12 arguments in BPF trampoline.
 
  - Extend link_info for kprobe_multi and perf_event links.
 
 Netfilter
 ---------
 
  - Speed-up process exit by aborting ruleset validation if a
    fatal signal is pending.
 
  - Allow NLA_POLICY_MASK to be used with BE16/BE32 types.
 
 Driver API
 ----------
 
  - Page pool optimizations, to improve data locality and cache usage.
 
  - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need
    for raw ioctl() handling in drivers.
 
  - Simplify genetlink dump operations (doit/dumpit) providing them
    the common information already populated in struct genl_info.
 
  - Extend and use the yaml devlink specs to [re]generate the split ops.
 
  - Introduce devlink selective dumps, to allow SF filtering SF based on
    handle and other attributes.
 
  - Add yaml netlink spec for netlink-raw families, allow route, link and
    address related queries via the ynl tool.
 
  - Remove phylink legacy mode support.
 
  - Support offload LED blinking to phy.
 
  - Add devlink port function attributes for IPsec.
 
 New hardware / drivers
 ----------------------
 
  - Ethernet:
    - Broadcom ASP 2.0 (72165) ethernet controller
    - MediaTek MT7988 SoC
    - Texas Instruments AM654 SoC
    - Texas Instruments IEP driver
    - Atheros qca8081 phy
    - Marvell 88Q2110 phy
    - NXP TJA1120 phy
 
  - WiFi:
    - MediaTek mt7981 support
 
  - Can:
    - Kvaser SmartFusion2 PCI Express devices
    - Allwinner T113 controllers
    - Texas Instruments tcan4552/4553 chips
 
  - Bluetooth:
    - Intel Gale Peak
    - Qualcomm WCN3988 and WCN7850
    - NXP AW693 and IW624
    - Mediatek MT2925
 
 Drivers
 -------
 
  - Ethernet NICs:
    - nVidia/Mellanox:
      - mlx5:
        - support UDP encapsulation in packet offload mode
        - IPsec packet offload support in eswitch mode
        - improve aRFS observability by adding new set of counters
        - extends MACsec offload support to cover RoCE traffic
        - dynamic completion EQs
      - mlx4:
        - convert to use auxiliary bus instead of custom interface logic
    - Intel
      - ice:
        - implement switchdev bridge offload, even for LAG interfaces
        - implement SRIOV support for LAG interfaces
      - igc:
        - add support for multiple in-flight TX timestamps
    - Broadcom:
      - bnxt:
        - use the unified RX page pool buffers for XDP and non-XDP
        - use the NAPI skb allocation cache
    - OcteonTX2:
      - support Round Robin scheduling HTB offload
      - TC flower offload support for SPI field
    - Freescale:
      -  add XDP_TX feature support
    - AMD:
      - ionic: add support for PCI FLR event
      - sfc:
        - basic conntrack offload
        - introduce eth, ipv4 and ipv6 pedit offloads
    - ST Microelectronics:
      - stmmac: maximze PTP timestamping resolution
 
  - Virtual NICs:
    - Microsoft vNIC:
      - batch ringing RX queue doorbell on receiving packets
      - add page pool for RX buffers
    - Virtio vNIC:
      - add per queue interrupt coalescing support
    - Google vNIC:
      - add queue-page-list mode support
 
  - Ethernet high-speed switches:
    - nVidia/Mellanox (mlxsw):
      - add port range matching tc-flower offload
      - permit enslavement to netdevices with uppers
 
  - Ethernet embedded switches:
    - Marvell (mv88e6xxx):
      - convert to phylink_pcs
    - Renesas:
      - r8A779fx: add speed change support
      - rzn1: enables vlan support
 
  - Ethernet PHYs:
    - convert mv88e6xxx to phylink_pcs
 
  - WiFi:
    - Qualcomm Wi-Fi 7 (ath12k):
      - extremely High Throughput (EHT) PHY support
    - RealTek (rtl8xxxu):
      - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
        RTL8192EU and RTL8723BU
    - RealTek (rtw89):
      - Introduce Time Averaged SAR (TAS) support
 
  - Connector:
    - support for event filtering
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Paolo Abeni:
 "Core:

   - Increase size limits for to-be-sent skb frag allocations. This
     allows tun, tap devices and packet sockets to better cope with
     large writes operations

   - Store netdevs in an xarray, to simplify iterating over netdevs

   - Refactor nexthop selection for multipath routes

   - Improve sched class lifetime handling

   - Add backup nexthop ID support for bridge

   - Implement drop reasons support in openvswitch

   - Several data races annotations and fixes

   - Constify the sk parameter of routing functions

   - Prepend kernel version to netconsole message

  Protocols:

   - Implement support for TCP probing the peer being under memory
     pressure

   - Remove hard coded limitation on IPv6 specific info placement inside
     the socket struct

   - Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per
     socket scaling factor

   - Scaling-up the IPv6 expired route GC via a separated list of
     expiring routes

   - In-kernel support for the TLS alert protocol

   - Better support for UDP reuseport with connected sockets

   - Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
     header size

   - Get rid of additional ancillary per MPTCP connection struct socket

   - Implement support for BPF-based MPTCP packet schedulers

   - Format MPTCP subtests selftests results in TAP

   - Several new SMC 2.1 features including unique experimental options,
     max connections per lgr negotiation, max links per lgr negotiation

  BPF:

   - Multi-buffer support in AF_XDP

   - Add multi uprobe BPF links for attaching multiple uprobes and usdt
     probes, which is significantly faster and saves extra fds

   - Implement an fd-based tc BPF attach API (TCX) and BPF link support
     on top of it

   - Add SO_REUSEPORT support for TC bpf_sk_assign

   - Support new instructions from cpu v4 to simplify the generated code
     and feature completeness, for x86, arm64, riscv64

   - Support defragmenting IPv(4|6) packets in BPF

   - Teach verifier actual bounds of bpf_get_smp_processor_id() and fix
     perf+libbpf issue related to custom section handling

   - Introduce bpf map element count and enable it for all program types

   - Add a BPF hook in sys_socket() to change the protocol ID from
     IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy

   - Introduce bpf_me_mcache_free_rcu() and fix OOM under stress

   - Add uprobe support for the bpf_get_func_ip helper

   - Check skb ownership against full socket

   - Support for up to 12 arguments in BPF trampoline

   - Extend link_info for kprobe_multi and perf_event links

  Netfilter:

   - Speed-up process exit by aborting ruleset validation if a fatal
     signal is pending

   - Allow NLA_POLICY_MASK to be used with BE16/BE32 types

  Driver API:

   - Page pool optimizations, to improve data locality and cache usage

   - Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the
     need for raw ioctl() handling in drivers

   - Simplify genetlink dump operations (doit/dumpit) providing them the
     common information already populated in struct genl_info

   - Extend and use the yaml devlink specs to [re]generate the split ops

   - Introduce devlink selective dumps, to allow SF filtering SF based
     on handle and other attributes

   - Add yaml netlink spec for netlink-raw families, allow route, link
     and address related queries via the ynl tool

   - Remove phylink legacy mode support

   - Support offload LED blinking to phy

   - Add devlink port function attributes for IPsec

  New hardware / drivers:

   - Ethernet:
      - Broadcom ASP 2.0 (72165) ethernet controller
      - MediaTek MT7988 SoC
      - Texas Instruments AM654 SoC
      - Texas Instruments IEP driver
      - Atheros qca8081 phy
      - Marvell 88Q2110 phy
      - NXP TJA1120 phy

   - WiFi:
      - MediaTek mt7981 support

   - Can:
      - Kvaser SmartFusion2 PCI Express devices
      - Allwinner T113 controllers
      - Texas Instruments tcan4552/4553 chips

   - Bluetooth:
      - Intel Gale Peak
      - Qualcomm WCN3988 and WCN7850
      - NXP AW693 and IW624
      - Mediatek MT2925

  Drivers:

   - Ethernet NICs:
      - nVidia/Mellanox:
         - mlx5:
            - support UDP encapsulation in packet offload mode
            - IPsec packet offload support in eswitch mode
            - improve aRFS observability by adding new set of counters
            - extends MACsec offload support to cover RoCE traffic
            - dynamic completion EQs
         - mlx4:
            - convert to use auxiliary bus instead of custom interface
              logic
      - Intel
         - ice:
            - implement switchdev bridge offload, even for LAG
              interfaces
            - implement SRIOV support for LAG interfaces
         - igc:
            - add support for multiple in-flight TX timestamps
      - Broadcom:
         - bnxt:
            - use the unified RX page pool buffers for XDP and non-XDP
            - use the NAPI skb allocation cache
      - OcteonTX2:
         - support Round Robin scheduling HTB offload
         - TC flower offload support for SPI field
      - Freescale:
         - add XDP_TX feature support
      - AMD:
         - ionic: add support for PCI FLR event
         - sfc:
            - basic conntrack offload
            - introduce eth, ipv4 and ipv6 pedit offloads
      - ST Microelectronics:
         - stmmac: maximze PTP timestamping resolution

   - Virtual NICs:
      - Microsoft vNIC:
         - batch ringing RX queue doorbell on receiving packets
         - add page pool for RX buffers
      - Virtio vNIC:
         - add per queue interrupt coalescing support
      - Google vNIC:
         - add queue-page-list mode support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add port range matching tc-flower offload
         - permit enslavement to netdevices with uppers

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - convert to phylink_pcs
      - Renesas:
         - r8A779fx: add speed change support
         - rzn1: enables vlan support

   - Ethernet PHYs:
      - convert mv88e6xxx to phylink_pcs

   - WiFi:
      - Qualcomm Wi-Fi 7 (ath12k):
         - extremely High Throughput (EHT) PHY support
      - RealTek (rtl8xxxu):
         - enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
           RTL8192EU and RTL8723BU
      - RealTek (rtw89):
         - Introduce Time Averaged SAR (TAS) support

   - Connector:
      - support for event filtering"

* tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits)
  net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show
  net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler
  net: stmmac: clarify difference between "interface" and "phy_interface"
  r8152: add vendor/device ID pair for D-Link DUB-E250
  devlink: move devlink_notify_register/unregister() to dev.c
  devlink: move small_ops definition into netlink.c
  devlink: move tracepoint definitions into core.c
  devlink: push linecard related code into separate file
  devlink: push rate related code into separate file
  devlink: push trap related code into separate file
  devlink: use tracepoint_enabled() helper
  devlink: push region related code into separate file
  devlink: push param related code into separate file
  devlink: push resource related code into separate file
  devlink: push dpipe related code into separate file
  devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper
  devlink: push shared buffer related code into separate file
  devlink: push port related code into separate file
  devlink: push object register/unregister notifications into separate helpers
  inet: fix IP_TRANSPARENT error handling
  ...
2023-08-29 11:33:01 -07:00
Linus Torvalds
68cf01760b This update includes the following changes:
API:
 
 - Move crypto engine callback from tfm ctx into algorithm object.
 - Fix atomic sleep bug in crypto_destroy_instance.
 - Move lib/mpi into lib/crypto.
 
 Algorithms:
 
 - Add chacha20 and poly1305 implementation for powerpc p10.
 
 Drivers:
 
 - Add AES skcipher and aead support to starfive.
 - Add Dynamic Boost Control support to ccp.
 - Add support for STM32P13 platform to stm32.
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Merge tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "API:
   - Move crypto engine callback from tfm ctx into algorithm object
   - Fix atomic sleep bug in crypto_destroy_instance
   - Move lib/mpi into lib/crypto

  Algorithms:
   - Add chacha20 and poly1305 implementation for powerpc p10

  Drivers:
   - Add AES skcipher and aead support to starfive
   - Add Dynamic Boost Control support to ccp
   - Add support for STM32P13 platform to stm32"

* tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (149 commits)
  Revert "dt-bindings: crypto: qcom,prng: Add SM8450"
  crypto: chelsio - Remove unused declarations
  X.509: if signature is unsupported skip validation
  crypto: qat - fix crypto capability detection for 4xxx
  crypto: drivers - Explicitly include correct DT includes
  crypto: engine - Remove crypto_engine_ctx
  crypto: zynqmp - Use new crypto_engine_op interface
  crypto: virtio - Use new crypto_engine_op interface
  crypto: stm32 - Use new crypto_engine_op interface
  crypto: jh7110 - Use new crypto_engine_op interface
  crypto: rk3288 - Use new crypto_engine_op interface
  crypto: omap - Use new crypto_engine_op interface
  crypto: keembay - Use new crypto_engine_op interface
  crypto: sl3516 - Use new crypto_engine_op interface
  crypto: caam - Use new crypto_engine_op interface
  crypto: aspeed - Remove non-standard sha512 algorithms
  crypto: aspeed - Use new crypto_engine_op interface
  crypto: amlogic - Use new crypto_engine_op interface
  crypto: sun8i-ss - Use new crypto_engine_op interface
  crypto: sun8i-ce - Use new crypto_engine_op interface
  ...
2023-08-29 11:23:29 -07:00
Linus Torvalds
815c24a085 linux-kselftest-kunit-6.6-rc1
This kunit update for Linux 6.6.rc1 consists of:
 
 -- Adds support for running Rust documentation tests as KUnit tests
 -- Makes init, str, sync, types doctests compilable/testable
 -- Adds support for attributes API which include speed, modules
    attributes, ability to filter and report attributes.
 -- Adds support for marking tests slow using attributes API.
 -- Adds attributes API documentation
 -- Fixes to wild-memory-access bug in kunit_filter_suites() and
    a possible memory leak in kunit_filter_suites()
 -- Adds support for counting number of test suites in a module, list
    action to kunit test modules, and test filtering on module tests.
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Merge tag 'linux-kselftest-kunit-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kunit updates from Shuah Khan:

 - add support for running Rust documentation tests as KUnit tests

 - make init, str, sync, types doctests compilable/testable

 - add support for attributes API which include speed, modules
   attributes, ability to filter and report attributes

 - add support for marking tests slow using attributes API

 - add attributes API documentation

 - fix a wild-memory-access bug in kunit_filter_suites() and a possible
   memory leak in kunit_filter_suites()

 - add support for counting number of test suites in a module, list
   action to kunit test modules, and test filtering on module tests

* tag 'linux-kselftest-kunit-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (25 commits)
  kunit: fix struct kunit_attr header
  kunit: replace KUNIT_TRIGGER_STATIC_STUB maro with KUNIT_STATIC_STUB_REDIRECT
  kunit: Allow kunit test modules to use test filtering
  kunit: Make 'list' action available to kunit test modules
  kunit: Report the count of test suites in a module
  kunit: fix uninitialized variables bug in attributes filtering
  kunit: fix possible memory leak in kunit_filter_suites()
  kunit: fix wild-memory-access bug in kunit_filter_suites()
  kunit: Add documentation of KUnit test attributes
  kunit: add tests for filtering attributes
  kunit: time: Mark test as slow using test attributes
  kunit: memcpy: Mark tests as slow using test attributes
  kunit: tool: Add command line interface to filter and report attributes
  kunit: Add ability to filter attributes
  kunit: Add module attribute
  kunit: Add speed attribute
  kunit: Add test attributes API structure
  MAINTAINERS: add Rust KUnit files to the KUnit entry
  rust: support running Rust documentation tests as KUnit ones
  rust: types: make doctests compilable/testable
  ...
2023-08-28 18:56:38 -07:00
Linus Torvalds
d637fce034 Simplify the locking self-tests via using the new <linux/cleanup.h>
facilities for lock guards.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking update from Ingo Molnar:
 "Simplify the locking self-tests via using the new <linux/cleanup.h>
  facilities for lock guards"

* tag 'locking-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lockdep/selftests: Use SBRM APIs for wait context tests
2023-08-28 16:32:09 -07:00
Linus Torvalds
727dbda16b hardening updates for v6.6-rc1
- Carve out the new CONFIG_LIST_HARDENED as a more focused subset of
   CONFIG_DEBUG_LIST (Marco Elver).
 
 - Fix kallsyms lookup failure under Clang LTO (Yonghong Song).
 
 - Clarify documentation for CONFIG_UBSAN_TRAP (Jann Horn).
 
 - Flexible array member conversion not carried in other tree (Gustavo
   A. R. Silva).
 
 - Various strlcpy() and strncpy() removals not carried in other trees
   (Azeem Shaikh, Justin Stitt).
 
 - Convert nsproxy.count to refcount_t (Elena Reshetova).
 
 - Add handful of __counted_by annotations not carried in other trees,
   as well as an LKDTM test.
 
 - Fix build failure with gcc-plugins on GCC 14+.
 
 - Fix selftests to respect SKIP for signal-delivery tests.
 
 - Fix CFI warning for paravirt callback prototype.
 
 - Clarify documentation for seq_show_option_n() usage.
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Merge tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:
 "As has become normal, changes are scattered around the tree (either
  explicitly maintainer Acked or for trivial stuff that went ignored):

   - Carve out the new CONFIG_LIST_HARDENED as a more focused subset of
     CONFIG_DEBUG_LIST (Marco Elver)

   - Fix kallsyms lookup failure under Clang LTO (Yonghong Song)

   - Clarify documentation for CONFIG_UBSAN_TRAP (Jann Horn)

   - Flexible array member conversion not carried in other tree (Gustavo
     A. R. Silva)

   - Various strlcpy() and strncpy() removals not carried in other trees
     (Azeem Shaikh, Justin Stitt)

   - Convert nsproxy.count to refcount_t (Elena Reshetova)

   - Add handful of __counted_by annotations not carried in other trees,
     as well as an LKDTM test

   - Fix build failure with gcc-plugins on GCC 14+

   - Fix selftests to respect SKIP for signal-delivery tests

   - Fix CFI warning for paravirt callback prototype

   - Clarify documentation for seq_show_option_n() usage"

* tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits)
  LoadPin: Annotate struct dm_verity_loadpin_trusted_root_digest with __counted_by
  kallsyms: Change func signature for cleanup_symbol_name()
  kallsyms: Fix kallsyms_selftest failure
  nsproxy: Convert nsproxy.count to refcount_t
  integrity: Annotate struct ima_rule_opt_list with __counted_by
  lkdtm: Add FAM_BOUNDS test for __counted_by
  Compiler Attributes: counted_by: Adjust name and identifier expansion
  um: refactor deprecated strncpy to memcpy
  um: vector: refactor deprecated strncpy
  alpha: Replace one-element array with flexible-array member
  hardening: Move BUG_ON_DATA_CORRUPTION to hardening options
  list: Introduce CONFIG_LIST_HARDENED
  list_debug: Introduce inline wrappers for debug checks
  compiler_types: Introduce the Clang __preserve_most function attribute
  gcc-plugins: Rename last_stmt() for GCC 14+
  selftests/harness: Actually report SKIP for signal tests
  x86/paravirt: Fix tlb_remove_table function callback prototype warning
  EISA: Replace all non-returning strlcpy with strscpy
  perf: Replace strlcpy with strscpy
  um: Remove strlcpy declaration
  ...
2023-08-28 12:59:45 -07:00
Linus Torvalds
6016fc9162 New code for 6.6:
* Make large writes to the page cache fill sparse parts of the cache
    with large folios, then use large memcpy calls for the large folio.
  * Track the per-block dirty state of each large folio so that a
    buffered write to a single byte on a large folio does not result in a
    (potentially) multi-megabyte writeback IO.
  * Allow some directio completions to be performed in the initiating
    task's context instead of punting through a workqueue.  This will
    reduce latency for some io_uring requests.
 
 Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap updates from Darrick Wong:
 "We've got some big changes for this release -- I'm very happy to be
  landing willy's work to enable large folios for the page cache for
  general read and write IOs when the fs can make contiguous space
  allocations, and Ritesh's work to track sub-folio dirty state to
  eliminate the write amplification problems inherent in using large
  folios.

  As a bonus, io_uring can now process write completions in the caller's
  context instead of bouncing through a workqueue, which should reduce
  io latency dramatically. IOWs, XFS should see a nice performance bump
  for both IO paths.

  Summary:

   - Make large writes to the page cache fill sparse parts of the cache
     with large folios, then use large memcpy calls for the large folio.

   - Track the per-block dirty state of each large folio so that a
     buffered write to a single byte on a large folio does not result in
     a (potentially) multi-megabyte writeback IO.

   - Allow some directio completions to be performed in the initiating
     task's context instead of punting through a workqueue. This will
     reduce latency for some io_uring requests"

* tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits)
  iomap: support IOCB_DIO_CALLER_COMP
  io_uring/rw: add write support for IOCB_DIO_CALLER_COMP
  fs: add IOCB flags related to passing back dio completions
  iomap: add IOMAP_DIO_INLINE_COMP
  iomap: only set iocb->private for polled bio
  iomap: treat a write through cache the same as FUA
  iomap: use an unsigned type for IOMAP_DIO_* defines
  iomap: cleanup up iomap_dio_bio_end_io()
  iomap: Add per-block dirty state tracking to improve performance
  iomap: Allocate ifs in ->write_begin() early
  iomap: Refactor iomap_write_delalloc_punch() function out
  iomap: Use iomap_punch_t typedef
  iomap: Fix possible overflow condition in iomap_write_delalloc_scan
  iomap: Add some uptodate state handling helpers for ifs state bitmap
  iomap: Drop ifs argument from iomap_set_range_uptodate()
  iomap: Rename iomap_page to iomap_folio_state and others
  iomap: Copy larger chunks from userspace
  iomap: Create large folios in the buffered write path
  filemap: Allow __filemap_get_folio to allocate large folios
  filemap: Add fgf_t typedef
  ...
2023-08-28 11:59:52 -07:00
Rob Herring
077ca0408c lib/genalloc: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Link: https://lore.kernel.org/r/20230714175056.4066297-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2023-08-28 13:36:24 -05:00
Takashi Iwai
692f551015 ASoC: Updates for v6.6
The rest of the updates for v6.6, some of the highlights include:
 
  - A big API cleanup from Morimoto-san, rationalising the places we put
    functions.
  - Lots of work on the SOF framework, AMD and Intel drivers, including a
    lot of cleanup and new device support.
  - Standardisation of the presentation of jacks from drivers.
  - Provision of some generic sound card DT properties.
  - Conversion oof more drivers to the maple tree register cache.
  - New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
    various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
    JH7110.
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Merge tag 'asoc-v6.6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v6.6

The rest of the updates for v6.6, some of the highlights include:

 - A big API cleanup from Morimoto-san, rationalising the places we put
   functions.
 - Lots of work on the SOF framework, AMD and Intel drivers, including a
   lot of cleanup and new device support.
 - Standardisation of the presentation of jacks from drivers.
 - Provision of some generic sound card DT properties.
 - Conversion oof more drivers to the maple tree register cache.
 - New drivers for AMD Van Gogh, AWInic AW88261, Cirrus Logic cs42l43,
   various Intel platforms, Mediatek MT7986, RealTek RT1017 and StarFive
   JH7110.
2023-08-28 16:13:03 +02:00
Jakub Kicinski
bebfbf07c7 bpf-next-for-netdev
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Daniel Borkmann says:

====================
pull-request: bpf-next 2023-08-25

We've added 87 non-merge commits during the last 8 day(s) which contain
a total of 104 files changed, 3719 insertions(+), 4212 deletions(-).

The main changes are:

1) Add multi uprobe BPF links for attaching multiple uprobes
   and usdt probes, which is significantly faster and saves extra fds,
   from Jiri Olsa.

2) Add support BPF cpu v4 instructions for arm64 JIT compiler,
   from Xu Kuohai.

3) Add support BPF cpu v4 instructions for riscv64 JIT compiler,
   from Pu Lehui.

4) Fix LWT BPF xmit hooks wrt their return values where propagating
   the result from skb_do_redirect() would trigger a use-after-free,
   from Yan Zhai.

5) Fix a BPF verifier issue related to bpf_kptr_xchg() with local kptr
   where the map's value kptr type and locally allocated obj type
   mismatch, from Yonghong Song.

6) Fix BPF verifier's check_func_arg_reg_off() function wrt graph
   root/node which bypassed reg->off == 0 enforcement,
   from Kumar Kartikeya Dwivedi.

7) Lift BPF verifier restriction in networking BPF programs to treat
   comparison of packet pointers not as a pointer leak,
   from Yafang Shao.

8) Remove unmaintained XDP BPF samples as they are maintained
   in xdp-tools repository out of tree, from Toke Høiland-Jørgensen.

9) Batch of fixes for the tracing programs from BPF samples in order
   to make them more libbpf-aware, from Daniel T. Lee.

10) Fix a libbpf signedness determination bug in the CO-RE relocation
    handling logic, from Andrii Nakryiko.

11) Extend libbpf to support CO-RE kfunc relocations. Also follow-up
    fixes for bpf_refcount shared ownership implementation,
    both from Dave Marchevsky.

12) Add a new bpf_object__unpin() API function to libbpf,
    from Daniel Xu.

13) Fix a memory leak in libbpf to also free btf_vmlinux
    when the bpf_object gets closed, from Hao Luo.

14) Small error output improvements to test_bpf module, from Helge Deller.

* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (87 commits)
  selftests/bpf: Add tests for rbtree API interaction in sleepable progs
  bpf: Allow bpf_spin_{lock,unlock} in sleepable progs
  bpf: Consider non-owning refs to refcounted nodes RCU protected
  bpf: Reenable bpf_refcount_acquire
  bpf: Use bpf_mem_free_rcu when bpf_obj_dropping refcounted nodes
  bpf: Consider non-owning refs trusted
  bpf: Ensure kptr_struct_meta is non-NULL for collection insert and refcount_acquire
  selftests/bpf: Enable cpu v4 tests for RV64
  riscv, bpf: Support unconditional bswap insn
  riscv, bpf: Support signed div/mod insns
  riscv, bpf: Support 32-bit offset jmp insn
  riscv, bpf: Support sign-extension mov insns
  riscv, bpf: Support sign-extension load insns
  riscv, bpf: Fix missing exception handling and redundant zext for LDX_B/H/W
  samples/bpf: Add note to README about the XDP utilities moved to xdp-tools
  samples/bpf: Cleanup .gitignore
  samples/bpf: Remove the xdp_sample_pkts utility
  samples/bpf: Remove the xdp1 and xdp2 utilities
  samples/bpf: Remove the xdp_rxq_info utility
  samples/bpf: Remove the xdp_redirect* utilities
  ...
====================

Link: https://lore.kernel.org/r/20230825194319.12727-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-08-25 18:40:15 -07:00
Helge Deller
382d4cd184 lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels
The gcc compiler translates on some architectures the 64-bit
__builtin_clzll() function to a call to the libgcc function __clzdi2(),
which should take a 64-bit parameter on 32- and 64-bit platforms.

But in the current kernel code, the built-in __clzdi2() function is
defined to operate (wrongly) on 32-bit parameters if BITS_PER_LONG ==
32, thus the return values on 32-bit kernels are in the range from
[0..31] instead of the expected [0..63] range.

This patch fixes the in-kernel functions __clzdi2() and __ctzdi2() to
take a 64-bit parameter on 32-bit kernels as well, thus it makes the
functions identical for 32- and 64-bit kernels.

This bug went unnoticed since kernel 3.11 for over 10 years, and here
are some possible reasons for that:

 a) Some architectures have assembly instructions to count the bits and
    which are used instead of calling __clzdi2(), e.g. on x86 the bsr
    instruction and on ppc cntlz is used. On such architectures the
    wrong __clzdi2() implementation isn't used and as such the bug has
    no effect and won't be noticed.

 b) Some architectures link to libgcc.a, and the in-kernel weak
    functions get replaced by the correct 64-bit variants from libgcc.a.

 c) __builtin_clzll() and __clzdi2() doesn't seem to be used in many
    places in the kernel, and most likely only in uncritical functions,
    e.g. when printing hex values via seq_put_hex_ll(). The wrong return
    value will still print the correct number, but just in a wrong
    formatting (e.g. with too many leading zeroes).

 d) 32-bit kernels aren't used that much any longer, so they are less
    tested.

A trivial testcase to verify if the currently running 32-bit kernel is
affected by the bug is to look at the output of /proc/self/maps:

Here the kernel uses a correct implementation of __clzdi2():

  root@debian:~# cat /proc/self/maps
  00010000-00019000 r-xp 00000000 08:05 787324     /usr/bin/cat
  00019000-0001a000 rwxp 00009000 08:05 787324     /usr/bin/cat
  0001a000-0003b000 rwxp 00000000 00:00 0          [heap]
  f7551000-f770d000 r-xp 00000000 08:05 794765     /usr/lib/hppa-linux-gnu/libc.so.6
  ...

and this kernel uses the broken implementation of __clzdi2():

  root@debian:~# cat /proc/self/maps
  0000000010000-0000000019000 r-xp 00000000 000000008:000000005 787324  /usr/bin/cat
  0000000019000-000000001a000 rwxp 000000009000 000000008:000000005 787324  /usr/bin/cat
  000000001a000-000000003b000 rwxp 00000000 00:00 0  [heap]
  00000000f73d1000-00000000f758d000 r-xp 00000000 000000008:000000005 794765  /usr/lib/hppa-linux-gnu/libc.so.6
  ...

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 4df87bb7b6 ("lib: add weak clz/ctz functions")
Cc: Chanho Min <chanho.min@lge.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-08-25 13:22:10 -07:00
Linus Torvalds
6f0edbb833 18 hotfixes. 13 are cc:stable and the remainder pertain to post-6.4 issues
or aren't considered suitable for a -stable backport.
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Merge tag 'mm-hotfixes-stable-2023-08-25-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "18 hotfixes. 13 are cc:stable and the remainder pertain to post-6.4
  issues or aren't considered suitable for a -stable backport"

* tag 'mm-hotfixes-stable-2023-08-25-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  shmem: fix smaps BUG sleeping while atomic
  selftests: cachestat: catch failing fsync test on tmpfs
  selftests: cachestat: test for cachestat availability
  maple_tree: disable mas_wr_append() when other readers are possible
  madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check
  madvise:madvise_free_huge_pmd(): don't use mapcount() against large folio for sharing check
  madvise:madvise_cold_or_pageout_pte_range(): don't use mapcount() against large folio for sharing check
  mm: multi-gen LRU: don't spin during memcg release
  mm: memory-failure: fix unexpected return value in soft_offline_page()
  radix tree: remove unused variable
  mm: add a call to flush_cache_vmap() in vmap_pfn()
  selftests/mm: FOLL_LONGTERM need to be updated to 0x100
  nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers()
  mm/gup: handle cont-PTE hugetlb pages correctly in gup_must_unshare() via GUP-fast
  selftests: cgroup: fix test_kmem_basic less than error
  mm: enable page walking API to lock vmas during the walk
  smaps: use vm_normal_page_pmd() instead of follow_trans_huge_pmd()
  mm/gup: reintroduce FOLL_NUMA as FOLL_HONOR_NUMA_FAULT
2023-08-25 11:44:43 -07:00
Mateusz Guzik
c439d5e8a0 pcpcntr: add group allocation/free
Allocations and frees are globally serialized on the pcpu lock (and the
CPU hotplug lock if enabled, which is the case on Debian).

At least one frequent consumer allocates 4 back-to-back counters (and
frees them in the same manner), exacerbating the problem.

While this does not fully remedy scalability issues, it is a step
towards that goal and provides immediate relief.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Reviewed-by: Dennis Zhou <dennis@kernel.org>
Reviewed-by: Vegard Nossum <vegard.nossum@oracle.com>
Link: https://lore.kernel.org/r/20230823050609.2228718-2-mjguzik@gmail.com
[Dennis: reflowed a few lines]
Signed-off-by: Dennis Zhou <dennis@kernel.org>
2023-08-25 08:06:53 -07:00
Christophe Leroy
b38460bc46 kunit: Fix checksum tests on big endian CPUs
On powerpc64le checksum kunit tests work:

[    2.011457][    T1]     KTAP version 1
[    2.011662][    T1]     # Subtest: checksum
[    2.011848][    T1]     1..3
[    2.034710][    T1]     ok 1 test_csum_fixed_random_inputs
[    2.079325][    T1]     ok 2 test_csum_all_carry_inputs
[    2.127102][    T1]     ok 3 test_csum_no_carry_inputs
[    2.127202][    T1] # checksum: pass:3 fail:0 skip:0 total:3
[    2.127533][    T1] # Totals: pass:3 fail:0 skip:0 total:3
[    2.127956][    T1] ok 1 checksum

But on powerpc64 and powerpc32 they fail:

[    1.859890][    T1]     KTAP version 1
[    1.860041][    T1]     # Subtest: checksum
[    1.860201][    T1]     1..3
[    1.861927][   T58]     # test_csum_fixed_random_inputs: ASSERTION FAILED at lib/checksum_kunit.c:243
[    1.861927][   T58]     Expected result == expec, but
[    1.861927][   T58]         result == 54991 (0xd6cf)
[    1.861927][   T58]         expec == 33316 (0x8224)
[    1.863742][    T1]     not ok 1 test_csum_fixed_random_inputs
[    1.864520][   T60]     # test_csum_all_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:267
[    1.864520][   T60]     Expected result == expec, but
[    1.864520][   T60]         result == 255 (0xff)
[    1.864520][   T60]         expec == 65280 (0xff00)
[    1.868820][    T1]     not ok 2 test_csum_all_carry_inputs
[    1.869977][   T62]     # test_csum_no_carry_inputs: ASSERTION FAILED at lib/checksum_kunit.c:306
[    1.869977][   T62]     Expected result == expec, but
[    1.869977][   T62]         result == 64515 (0xfc03)
[    1.869977][   T62]         expec == 0 (0x0)
[    1.872060][    T1]     not ok 3 test_csum_no_carry_inputs
[    1.872102][    T1] # checksum: pass:0 fail:3 skip:0 total:3
[    1.872458][    T1] # Totals: pass:0 fail:3 skip:0 total:3
[    1.872791][    T1] not ok 3 checksum

This is because all expected values were calculated for X86 which
is little endian. On big endian systems all precalculated 16 bits
halves must be byte swapped.

And this is confirmed by a huge amount of sparse errors when building
with C=2

So fix all sparse errors and it will naturally work on all endianness.

Fixes: 688eb8191b ("x86/csum: Improve performance of `csum_partial`")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-08-25 10:14:34 +01:00
Liam R. Howlett
432af5c966 maple_tree: clean up mas_wr_append()
Avoid setting the variables until necessary, and actually use the
variables where applicable.  Introducing a variable for the slots array
avoids spanning multiple lines.

Add the missing argument to the documentation.

Use the node type when setting the metadata instead of blindly assuming
the type.

Finally, add a trace point to the function for successful store.

Link: https://lkml.kernel.org/r/20230819004356.1454718-3-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24 16:20:32 -07:00
Matthew Wilcox (Oracle)
f9bff0e318 minmax: add in_range() macro
Patch series "New page table range API", v6.

This patchset changes the API used by the MM to set up page table entries.
The four APIs are:

    set_ptes(mm, addr, ptep, pte, nr)
    update_mmu_cache_range(vma, addr, ptep, nr)
    flush_dcache_folio(folio) 
    flush_icache_pages(vma, page, nr)

flush_dcache_folio() isn't technically new, but no architecture
implemented it, so I've done that for them.  The old APIs remain around
but are mostly implemented by calling the new interfaces.

The new APIs are based around setting up N page table entries at once. 
The N entries belong to the same PMD, the same folio and the same VMA, so
ptep++ is a legitimate operation, and locking is taken care of for you. 
Some architectures can do a better job of it than just a loop, but I have
hesitated to make too deep a change to architectures I don't understand
well.

One thing I have changed in every architecture is that PG_arch_1 is now a
per-folio bit instead of a per-page bit when used for dcache clean/dirty
tracking.  This was something that would have to happen eventually, and it
makes sense to do it now rather than iterate over every page involved in a
cache flush and figure out if it needs to happen.

The point of all this is better performance, and Fengwei Yin has measured
improvement on x86.  I suspect you'll see improvement on your architecture
too.  Try the new will-it-scale test mentioned here:
https://lore.kernel.org/linux-mm/20230206140639.538867-5-fengwei.yin@intel.com/
You'll need to run it on an XFS filesystem and have
CONFIG_TRANSPARENT_HUGEPAGE set.

This patchset is the basis for much of the anonymous large folio work
being done by Ryan, so it's received quite a lot of testing over the last
few months.


This patch (of 38):

Determine if a value lies within a range more efficiently (subtraction +
comparison vs two comparisons and an AND).  It also has useful (under some
circumstances) behaviour if the range exceeds the maximum value of the
type.  Convert all the conflicting definitions of in_range() within the
kernel; some can use the generic definition while others need their own
definition.

Link: https://lkml.kernel.org/r/20230802151406.3735276-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230802151406.3735276-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24 16:20:18 -07:00
Andrew Morton
fcbc329fa3 merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes 2023-08-24 15:25:56 -07:00
Liam R. Howlett
cfeb6ae8bc maple_tree: disable mas_wr_append() when other readers are possible
The current implementation of append may cause duplicate data and/or
incorrect ranges to be returned to a reader during an update.  Although
this has not been reported or seen, disable the append write operation
while the tree is in rcu mode out of an abundance of caution.

During the analysis of the mas_next_slot() the following was
artificially created by separating the writer and reader code:

Writer:                                 reader:
mas_wr_append
    set end pivot
    updates end metata
    Detects write to last slot
    last slot write is to start of slot
    store current contents in slot
    overwrite old end pivot
                                        mas_next_slot():
                                                read end metadata
                                                read old end pivot
                                                return with incorrect range
    store new value

Alternatively:

Writer:                                 reader:
mas_wr_append
    set end pivot
    updates end metata
    Detects write to last slot
    last lost write to end of slot
    store value
                                        mas_next_slot():
                                                read end metadata
                                                read old end pivot
                                                read new end pivot
                                                return with incorrect range
    set old end pivot

There may be other accesses that are not safe since we are now updating
both metadata and pointers, so disabling append if there could be rcu
readers is the safest action.

Link: https://lkml.kernel.org/r/20230819004356.1454718-2-Liam.Howlett@oracle.com
Fixes: 54a611b605 ("Maple Tree: add new data structure")
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-24 14:59:47 -07:00
Takashi Iwai
a057efde80 Merge branch 'for-linus' into for-next
Back-merge the 6.5-devel branch for the clean patch application for
6.6 and resolving merge conflicts.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-08-24 09:27:21 +02:00
Mark Brown
0bbe06493b
Add cs42l43 PC focused SoundWire CODEC
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

This patch chain adds support for the Cirrus Logic cs42l43 PC focused
SoundWire CODEC. The chain is currently based of Lee's for-mfd-next
branch.

This series is mostly just a resend keeping pace with the kernel under
it, except for a minor fixup in the ASoC stuff.

Thanks,
Charles

Charles Keepax (4):
  dt-bindings: mfd: cirrus,cs42l43: Add initial DT binding
  mfd: cs42l43: Add support for cs42l43 core driver
  pinctrl: cs42l43: Add support for the cs42l43
  ASoC: cs42l43: Add support for the cs42l43

Lucas Tanure (2):
  soundwire: bus: Allow SoundWire peripherals to register IRQ handlers
  spi: cs42l43: Add SPI controller support

 .../bindings/sound/cirrus,cs42l43.yaml        |  313 +++
 MAINTAINERS                                   |    4 +
 drivers/mfd/Kconfig                           |   23 +
 drivers/mfd/Makefile                          |    3 +
 drivers/mfd/cs42l43-i2c.c                     |   98 +
 drivers/mfd/cs42l43-sdw.c                     |  239 ++
 drivers/mfd/cs42l43.c                         | 1188 +++++++++
 drivers/mfd/cs42l43.h                         |   28 +
 drivers/pinctrl/cirrus/Kconfig                |   11 +
 drivers/pinctrl/cirrus/Makefile               |    2 +
 drivers/pinctrl/cirrus/pinctrl-cs42l43.c      |  609 +++++
 drivers/soundwire/bus.c                       |   32 +
 drivers/soundwire/bus_type.c                  |   12 +
 drivers/spi/Kconfig                           |    7 +
 drivers/spi/Makefile                          |    1 +
 drivers/spi/spi-cs42l43.c                     |  284 ++
 include/linux/mfd/cs42l43-regs.h              | 1184 +++++++++
 include/linux/mfd/cs42l43.h                   |  102 +
 include/linux/soundwire/sdw.h                 |    9 +
 include/sound/cs42l43.h                       |   17 +
 sound/soc/codecs/Kconfig                      |   16 +
 sound/soc/codecs/Makefile                     |    4 +
 sound/soc/codecs/cs42l43-jack.c               |  946 +++++++
 sound/soc/codecs/cs42l43-sdw.c                |   74 +
 sound/soc/codecs/cs42l43.c                    | 2278 +++++++++++++++++
 sound/soc/codecs/cs42l43.h                    |  131 +
 26 files changed, 7615 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs42l43.yaml
 create mode 100644 drivers/mfd/cs42l43-i2c.c
 create mode 100644 drivers/mfd/cs42l43-sdw.c
 create mode 100644 drivers/mfd/cs42l43.c
 create mode 100644 drivers/mfd/cs42l43.h
 create mode 100644 drivers/pinctrl/cirrus/pinctrl-cs42l43.c
 create mode 100644 drivers/spi/spi-cs42l43.c
 create mode 100644 include/linux/mfd/cs42l43-regs.h
 create mode 100644 include/linux/mfd/cs42l43.h
 create mode 100644 include/sound/cs42l43.h
 create mode 100644 sound/soc/codecs/cs42l43-jack.c
 create mode 100644 sound/soc/codecs/cs42l43-sdw.c
 create mode 100644 sound/soc/codecs/cs42l43.c
 create mode 100644 sound/soc/codecs/cs42l43.h

--
2.30.2
2023-08-22 12:48:04 +01:00
Andrew Morton
5994eabf3b merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes 2023-08-21 14:26:20 -07:00
Andy Shevchenko
3d0b713984 kstrtox: consistently use _tolower()
We already use _tolower() in other places, so convert the one which open
codes it.

Link: https://lkml.kernel.org/r/20230817145919.543251-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21 13:46:25 -07:00