Commit Graph

1268124 Commits

Author SHA1 Message Date
Steve French
edfc6481fa smb3: fix perf regression with cached writes with netfs conversion
Write through mode is for cache=none, not for default (when
caching is allowed if we have a lease). Some tests were running
much, much more slowly as a result of disabling caching of
writes by default.

Reviewed-by: David Howells <dhowells@redhat.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Fixes: 3ee1a1fc39 ("cifs: Cut over to using netfslib")
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-05-14 17:38:39 -05:00
Steve French
14b1cd2534 cifs: Fix locking in cifs_strict_readv()
Fix to take the i_rwsem (through the netfs locking wrappers) before taking
cinode->lock_sem.

Fixes: 3ee1a1fc39 ("cifs: Cut over to using netfslib")
Reported-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-05-13 17:02:05 -05:00
Steve French
29b4c7bb85 cifs: Change from mempool_destroy to mempool_exit for request pools
insmod followed by rmmod was oopsing with the new mempools cifs request patch

Fixes: edea94a697 ("cifs: Add mempools for cifs_io_request and cifs_io_subrequest structs")
Suggested-by: David Howells <dhowells@redhat.com>
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-05-13 16:49:36 -05:00
Gustavo A. R. Silva
9f9bef9bc5 smb: smb2pdu.h: Avoid -Wflex-array-member-not-at-end warnings
-Wflex-array-member-not-at-end is coming in GCC-14, and we are getting
ready to enable it globally.

So, in order to avoid ending up with a flexible-array member in the
middle of multiple other structs, we use the `__struct_group()` helper
to separate the flexible array from the rest of the members in the
flexible structure, and use the tagged `struct create_context_hdr`
instead of `struct create_context`.

So, with these changes, fix 51 of the following warnings[1]:

fs/smb/client/../common/smb2pdu.h:1225:31: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Link: https://gist.github.com/GustavoARSilva/772526a39be3dd4db39e71497f0a9893 [1]
Link: https://github.com/KSPP/linux/issues/202
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
2024-05-13 16:46:56 -05:00
Linus Torvalds
f4e8d80292 vfs-6.10.rw
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Merge tag 'vfs-6.10.rw' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs rw iterator updates from Christian Brauner:
 "The core fs signalfd, userfaultfd, and timerfd subsystems did still
  use f_op->read() instead of f_op->read_iter(). Convert them over since
  we should aim to get rid of f_op->read() at some point.

  Aside from that io_uring and others want to mark files as FMODE_NOWAIT
  so it can make use of per-IO nonblocking hints to enable more
  efficient IO. Converting those users to f_op->read_iter() allows them
  to be marked with FMODE_NOWAIT"

* tag 'vfs-6.10.rw' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  signalfd: convert to ->read_iter()
  userfaultfd: convert to ->read_iter()
  timerfd: convert to ->read_iter()
  new helper: copy_to_iter_full()
2024-05-13 12:23:17 -07:00
Linus Torvalds
ef31ea6c27 vfs-6.10.netfs
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Merge tag 'vfs-6.10.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull netfs updates from Christian Brauner:
 "This reworks the netfslib writeback implementation so that pages read
  from the cache are written to the cache through ->writepages(),
  thereby allowing the fscache page flag to be retired.

  The reworking also:

   - builds on top of the new writeback_iter() infrastructure

   - makes it possible to use vectored write RPCs as discontiguous
     streams of pages can be accommodated

   - makes it easier to do simultaneous content crypto and stream
     division

   - provides support for retrying writes and re-dividing a stream

   - replaces the ->launder_folio() op, so that ->writepages() is used
     instead

   - uses mempools to allocate the netfs_io_request and
     netfs_io_subrequest structs to avoid allocation failure in the
     writeback path

  Some code that uses the fscache page flag is retained for
  compatibility purposes with nfs and ceph. The code is switched to
  using the synonymous private_2 label instead and marked with
  deprecation comments.

  The merge commit contains additional details on the new algorithm that
  I've left out of here as it would probably be excessively detailed.

  On top of the netfslib infrastructure this contains the work to
  convert cifs over to netfslib"

* tag 'vfs-6.10.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (38 commits)
  cifs: Enable large folio support
  cifs: Remove some code that's no longer used, part 3
  cifs: Remove some code that's no longer used, part 2
  cifs: Remove some code that's no longer used, part 1
  cifs: Cut over to using netfslib
  cifs: Implement netfslib hooks
  cifs: Make add_credits_and_wake_if() clear deducted credits
  cifs: Add mempools for cifs_io_request and cifs_io_subrequest structs
  cifs: Set zero_point in the copy_file_range() and remap_file_range()
  cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c
  cifs: Replace the writedata replay bool with a netfs sreq flag
  cifs: Make wait_mtu_credits take size_t args
  cifs: Use more fields from netfs_io_subrequest
  cifs: Replace cifs_writedata with a wrapper around netfs_io_subrequest
  cifs: Replace cifs_readdata with a wrapper around netfs_io_subrequest
  cifs: Use alternative invalidation to using launder_folio
  netfs, afs: Use writeback retry to deal with alternate keys
  netfs: Miscellaneous tidy ups
  netfs: Remove the old writeback code
  netfs: Cut over to using new writeback code
  ...
2024-05-13 12:14:03 -07:00
Linus Torvalds
103fb219cf vfs-6.10.mount
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Merge tag 'vfs-6.10.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs mount API conversions from Christian Brauner:
 "This converts qnx6, minix, debugfs, tracefs, freevxfs, and openpromfs
  to the new mount api, further reducing the number of filesystems
  relying on the legacy mount api"

* tag 'vfs-6.10.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  minix: convert minix to use the new mount api
  vfs: Convert tracefs to use the new mount API
  vfs: Convert debugfs to use the new mount API
  openpromfs: finish conversion to the new mount API
  freevxfs: Convert freevxfs to the new mount API.
  qnx6: convert qnx6 to use the new mount api
2024-05-13 12:09:18 -07:00
Linus Torvalds
1b0aabcc9a vfs-6.10.misc
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Merge tag 'vfs-6.10.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull misc vfs updates from Christian Brauner:
 "This contains the usual miscellaneous features, cleanups, and fixes
  for vfs and individual fses.

  Features:

   - Free up FMODE_* bits. I've freed up bits 6, 7, 8, and 24. That
     means we now have six free FMODE_* bits in total (but bit #6
     already got used for FMODE_WRITE_RESTRICTED)

   - Add FOP_HUGE_PAGES flag (follow-up to FMODE_* cleanup)

   - Add fd_raw cleanup class so we can make use of automatic cleanup
     provided by CLASS(fd_raw, f)(fd) for O_PATH fds as well

   - Optimize seq_puts()

   - Simplify __seq_puts()

   - Add new anon_inode_getfile_fmode() api to allow specifying f_mode
     instead of open-coding it in multiple places

   - Annotate struct file_handle with __counted_by() and use
     struct_size()

   - Warn in get_file() whether f_count resurrection from zero is
     attempted (epoll/drm discussion)

   - Folio-sophize aio

   - Export the subvolume id in statx() for both btrfs and bcachefs

   - Relax linkat(AT_EMPTY_PATH) requirements

   - Add F_DUPFD_QUERY fcntl() allowing to compare two file descriptors
     for dup*() equality replacing kcmp()

  Cleanups:

   - Compile out swapfile inode checks when swap isn't enabled

   - Use (1 << n) notation for FMODE_* bitshifts for clarity

   - Remove redundant variable assignment in fs/direct-io

   - Cleanup uses of strncpy in orangefs

   - Speed up and cleanup writeback

   - Move fsparam_string_empty() helper into header since it's currently
     open-coded in multiple places

   - Add kernel-doc comments to proc_create_net_data_write()

   - Don't needlessly read dentry->d_flags twice

  Fixes:

   - Fix out-of-range warning in nilfs2

   - Fix ecryptfs overflow due to wrong encryption packet size
     calculation

   - Fix overly long line in xfs file_operations (follow-up to FMODE_*
     cleanup)

   - Don't raise FOP_BUFFER_{R,W}ASYNC for directories in xfs (follow-up
     to FMODE_* cleanup)

   - Don't call xfs_file_open from xfs_dir_open (follow-up to FMODE_*
     cleanup)

   - Fix stable offset api to prevent endless loops

   - Fix afs file server rotations

   - Prevent xattr node from overflowing the eraseblock in jffs2

   - Move fdinfo PTRACE_MODE_READ procfs check into the .permission()
     operation instead of .open() operation since this caused userspace
     regressions"

* tag 'vfs-6.10.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (39 commits)
  afs: Fix fileserver rotation getting stuck
  selftests: add F_DUPDFD_QUERY selftests
  fcntl: add F_DUPFD_QUERY fcntl()
  file: add fd_raw cleanup class
  fs: WARN when f_count resurrection is attempted
  seq_file: Simplify __seq_puts()
  seq_file: Optimize seq_puts()
  proc: Move fdinfo PTRACE_MODE_READ check into the inode .permission operation
  fs: Create anon_inode_getfile_fmode()
  xfs: don't call xfs_file_open from xfs_dir_open
  xfs: drop fop_flags for directories
  xfs: fix overly long line in the file_operations
  shmem: Fix shmem_rename2()
  libfs: Add simple_offset_rename() API
  libfs: Fix simple_offset_rename_exchange()
  jffs2: prevent xattr node from overflowing the eraseblock
  vfs, swap: compile out IS_SWAPFILE() on swapless configs
  vfs: relax linkat() AT_EMPTY_PATH - aka flink() - requirements
  fs/direct-io: remove redundant assignment to variable retval
  fs/dcache: Re-use value stored to dentry->d_flags instead of re-reading
  ...
2024-05-13 11:40:06 -07:00
Linus Torvalds
c117a437f2 vfs-6.10.iomap
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Merge tag 'vfs-6.10.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs iomap updates from Christian Brauner:
 "This contains a few cleanups to the iomap code. Nothing particularly
  stands out"

* tag 'vfs-6.10.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  iomap: do some small logical cleanup in buffered write
  iomap: make iomap_write_end() return a boolean
  iomap: use a new variable to handle the written bytes in iomap_write_iter()
  iomap: don't increase i_size if it's not a write operation
  iomap: drop the write failure handles when unsharing and zeroing
  iomap: convert iomap_writepages to writeack_iter
2024-05-13 11:28:44 -07:00
Linus Torvalds
8815da98e0 Another not-too-busy cycle for documentation, including:
- Some build-system changes to detect the variable fonts installed by some
   distributions that can break the PDF build.
 
 - Various updates and additions to the Spanish, Chinese, Italian, and
   Japanese translations.
 
 - Update the stable-kernel rules to match modern practice
 
 ...and the usual array of corrections, updates, and typo fixes.
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Merge tag 'docs-6.10' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "Another not-too-busy cycle for documentation, including:

   - Some build-system changes to detect the variable fonts installed by
     some distributions that can break the PDF build.

   - Various updates and additions to the Spanish, Chinese, Italian, and
     Japanese translations.

   - Update the stable-kernel rules to match modern practice

  ... and the usual array of corrections, updates, and typo fixes"

* tag 'docs-6.10' of git://git.lwn.net/linux: (42 commits)
  cgroup: Add documentation for missing zswap memory.stat
  kernel-doc: Added "*" in $type_constants2 to fix 'make htmldocs' warning.
  docs:core-api: fixed typos and grammar in printk-index page
  Documentation: tracing: Fix spelling mistakes
  docs/zh_CN/rust: Update the translation of quick-start to 6.9-rc4
  docs/zh_CN/rust: Update the translation of general-information to 6.9-rc4
  docs/zh_CN/rust: Update the translation of coding-guidelines to 6.9-rc4
  docs/zh_CN/rust: Update the translation of arch-support to 6.9-rc4
  docs: stable-kernel-rules: fix typo sent->send
  docs/zh_CN: remove two inconsistent spaces
  docs: scripts/check-variable-fonts.sh: Improve commands for detection
  docs: stable-kernel-rules: create special tag to flag 'no backporting'
  docs: stable-kernel-rules: explain use of stable@kernel.org (w/o @vger.)
  docs: stable-kernel-rules: remove code-labels tags and a indention level
  docs: stable-kernel-rules: call mainline by its name and change example
  docs: stable-kernel-rules: reduce redundancy
  docs, kprobes: Add riscv as supported architecture
  Docs: typos/spelling
  docs: kernel_include.py: Cope with docutils 0.21
  docs: ja_JP/howto: Catch up update in v6.8
  ...
2024-05-13 10:51:53 -07:00
Linus Torvalds
25c73642cc Hi
2nd trial of the earlier PR with more appropriate tag:
 
 1. Do no overwrite the key expiration once it is set.
 2. Early to quota updates for keys to key_put(), instead of
    updating them in key_gc_unused_keys().
 
 [1] Earlier PR:
     https://lore.kernel.org/linux-integrity/20240326143838.15076-1-jarkko@kernel.org/
 
 BR, Jarkko
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Merge tag 'keys-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull keys updates from Jarkko Sakkinen:

 - do not overwrite the key expiration once it is set

 - move key quota updates earlier into key_put(), instead of updating
   them in key_gc_unused_keys()

* tag 'keys-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  keys: Fix overwrite of key expiration on instantiation
  keys: update key quotas in key_put()
2024-05-13 10:48:35 -07:00
Linus Torvalds
b19239143e Hi,
These are the changes for the TPM driver with a single major new
 feature: TPM bus encryption and integrity protection. The key pair
 on TPM side is generated from so called null random seed per power
 on of the machine [1]. This supports the TPM encryption of the hard
 drive by adding layer of protection against bus interposer attacks.
 
 Other than the pull request a few minor fixes and documentation for
 tpm_tis to clarify basics of TPM localities for future patch review
 discussions (will be extended and refined over times, just a seed).
 
 [1] https://lore.kernel.org/linux-integrity/20240429202811.13643-1-James.Bottomley@HansenPartnership.com/
 
 BR, Jarkko
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Merge tag 'tpmdd-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull TPM updates from Jarkko Sakkinen:
 "These are the changes for the TPM driver with a single major new
  feature: TPM bus encryption and integrity protection. The key pair on
  TPM side is generated from so called null random seed per power on of
  the machine [1]. This supports the TPM encryption of the hard drive by
  adding layer of protection against bus interposer attacks.

  Other than that, a few minor fixes and documentation for tpm_tis to
  clarify basics of TPM localities for future patch review discussions
  (will be extended and refined over times, just a seed)"

Link: https://lore.kernel.org/linux-integrity/20240429202811.13643-1-James.Bottomley@HansenPartnership.com/ [1]

* tag 'tpmdd-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: (28 commits)
  Documentation: tpm: Add TPM security docs toctree entry
  tpm: disable the TPM if NULL name changes
  Documentation: add tpm-security.rst
  tpm: add the null key name as a sysfs export
  KEYS: trusted: Add session encryption protection to the seal/unseal path
  tpm: add session encryption protection to tpm2_get_random()
  tpm: add hmac checks to tpm2_pcr_extend()
  tpm: Add the rest of the session HMAC API
  tpm: Add HMAC session name/handle append
  tpm: Add HMAC session start and end functions
  tpm: Add TCG mandated Key Derivation Functions (KDFs)
  tpm: Add NULL primary creation
  tpm: export the context save and load commands
  tpm: add buffer function to point to returned parameters
  crypto: lib - implement library version of AES in CFB mode
  KEYS: trusted: tpm2: Use struct tpm_buf for sized buffers
  tpm: Add tpm_buf_read_{u8,u16,u32}
  tpm: TPM2B formatted buffers
  tpm: Store the length of the tpm_buf data separately.
  tpm: Update struct tpm_buf documentation comments
  ...
2024-05-13 10:40:15 -07:00
Linus Torvalds
c024814828 Hi,
This is pull request for trusted keys subsystem containing a new key
 type for the Data Co-Processor (DCP), which is an IP core built into
 many NXP SoCs such as i.mx6ull.
 
 BR, Jarkko
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Merge tag 'keys-trusted-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull trusted keys updates from Jarkko Sakkinen:
 "This contains a new key type for the Data Co-Processor (DCP), which is
  an IP core built into many NXP SoCs such as i.mx6ull"

* tag 'keys-trusted-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  docs: trusted-encrypted: add DCP as new trust source
  docs: document DCP-backed trusted keys kernel params
  MAINTAINERS: add entry for DCP-based trusted keys
  KEYS: trusted: Introduce NXP DCP-backed trusted keys
  KEYS: trusted: improve scalability of trust source config
  crypto: mxs-dcp: Add support for hardware-bound keys
2024-05-13 10:38:13 -07:00
Linus Torvalds
cd97950cbc slab updates for 6.10
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Merge tag 'slab-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:
 "This time it's mostly random cleanups and fixes, with two performance
  fixes that might have significant impact, but limited to systems
  experiencing particular bad corner case scenarios rather than general
  performance improvements.

  The memcg hook changes are going through the mm tree due to
  dependencies.

   - Prevent stalls when reading /proc/slabinfo (Jianfeng Wang)

     This fixes the long-standing problem that can happen with workloads
     that have alloc/free patterns resulting in many partially used
     slabs (in e.g. dentry cache). Reading /proc/slabinfo will traverse
     the long partial slab list under spinlock with disabled irqs and
     thus can stall other processes or even trigger the lockup
     detection. The traversal is only done to count free objects so that
     <active_objs> column can be reported along with <num_objs>.

     To avoid affecting fast paths with another shared counter
     (attempted in the past) or complex partial list traversal schemes
     that allow rescheduling, the chosen solution resorts to
     approximation - when the partial list is over 10000 slabs long, we
     will only traverse first 5000 slabs from head and tail each and use
     the average of those to estimate the whole list. Both head and tail
     are used as the slabs near head to tend to have more free objects
     than the slabs towards the tail.

     It is expected the approximation should not break existing
     /proc/slabinfo consumers. The <num_objs> field is still accurate
     and reflects the overall kmem_cache footprint. The <active_objs>
     was already imprecise due to cpu and percpu-partial slabs, so can't
     be relied upon to determine exact cache usage. The difference
     between <active_objs> and <num_objs> is mainly useful to determine
     the slab fragmentation, and that will be possible even with the
     approximation in place.

   - Prevent allocating many slabs when a NUMA node is full (Chen Jun)

     Currently, on NUMA systems with a node under significantly bigger
     pressure than other nodes, the fallback strategy may result in each
     kmalloc_node() that can't be safisfied from the preferred node, to
     allocate a new slab on a fallback node, and not reuse the slabs
     already on that node's partial list.

     This is now fixed and partial lists of fallback nodes are checked
     even for kmalloc_node() allocations. It's still preferred to
     allocate a new slab on the requested node before a fallback, but
     only with a GFP_NOWAIT attempt, which will fail quickly when the
     node is under a significant memory pressure.

   - More SLAB removal related cleanups (Xiu Jianfeng, Hyunmin Lee)

   - Fix slub_kunit self-test with hardened freelists (Guenter Roeck)

   - Mark racy accesses for KCSAN (linke li)

   - Misc cleanups (Xiongwei Song, Haifeng Xu, Sangyun Kim)"

* tag 'slab-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm/slub: remove the check for NULL kmalloc_caches
  mm/slub: create kmalloc 96 and 192 caches regardless cache size order
  mm/slub: mark racy access on slab->freelist
  slub: use count_partial_free_approx() in slab_out_of_memory()
  slub: introduce count_partial_free_approx()
  slub: Set __GFP_COMP in kmem_cache by default
  mm/slub: remove duplicate initialization for early_kmem_cache_node_alloc()
  mm/slub: correct comment in do_slab_free()
  mm/slub, kunit: Use inverted data to corrupt kmem cache
  mm/slub: simplify get_partial_node()
  mm/slub: add slub_get_cpu_partial() helper
  mm/slub: remove the check of !kmem_cache_has_cpu_partial()
  mm/slub: Reduce memory consumption in extreme scenarios
  mm/slub: mark racy accesses on slab->slabs
  mm/slub: remove dummy slabinfo functions
2024-05-13 10:28:34 -07:00
Linus Torvalds
c07ea940a0 kcsan: Introduce __data_racy type qualifier
This commit adds a __data_racy type qualifier that enables kernel
 developers to inform KCSAN that a given variable is a shared variable
 without needing to mark each and every access.  This allows pre-KCSAN
 code to be correctly (if approximately) instrumented withh very little
 effort, and also provides people reading the code a clear indication that
 the variable is in fact shared.  In addition, it permits incremental
 transition to per-access KCSAN marking, so that (for example) a given
 subsystem can be transitioned one variable at a time, while avoiding
 large numbers of KCSAN warnings during this transition.
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Merge tag 'kcsan.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull kcsan update from Paul McKenney:
 "Introduce __data_racy type qualifier

  This adds a __data_racy type qualifier that enables kernel developers
  to inform KCSAN that a given variable is a shared variable without
  needing to mark each and every access.

  This allows pre-KCSAN code to be correctly (if approximately)
  instrumented withh very little effort, and also provides people
  reading the code a clear indication that the variable is in fact
  shared.

  In addition, it permits incremental transition to per-access KCSAN
  marking, so that (for example) a given subsystem can be transitioned
  one variable at a time, while avoiding large numbers of KCSAN warnings
  during this transition"

* tag 'kcsan.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  kcsan, compiler_types: Introduce __data_racy type qualifier
2024-05-13 10:13:39 -07:00
Linus Torvalds
ee20260136 lkmm: Upgrade LKMM documentation
This commit upgrades LKMM documentation, perhaps most notably adding
 a number of litmus tests illustrating cmpxchg() ordering properties.
 TL;DR: Failing cmpxchg() operations provide no ordering.
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Merge tag 'lkmm.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull LKMM documentation updates from Paul McKenney:
 "This upgrades LKMM documentation, perhaps most notably adding a number
  of litmus tests illustrating cmpxchg() ordering properties.

  TL;DR: Failing cmpxchg() operations provide no ordering"

* tag 'lkmm.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  Documentation/litmus-tests: Make cmpxchg() tests safe for klitmus
  Documentation/atomic_t: Emphasize that failed atomic operations give no ordering
  Documentation/litmus-tests: Demonstrate unordered failing cmpxchg
  Documentation/litmus-tests: Add locking tests to README
2024-05-13 10:10:19 -07:00
Linus Torvalds
2e57d1d606 sparc32,parisc,csky: Provide one-byte and two-byte cmpxchg() support
This series provides native one-byte and two-byte cmpxchg() support
 for sparc32 and parisc, courtesy of Al Viro.  This support is provided
 by the same hashed-array-of-locks technique used for the other atomic
 operations provided for these two platforms.
 
 This series also provides emulated one-byte cmpxchg() support for csky
 using a new cmpxchg_emu_u8() function that uses a four-byte cmpxchg()
 to emulate the one-byte variant.
 
 Similar patches for emulation of one-byte cmpxchg() for arc, sh, and
 xtensa have not yet received maintainer acks, so they are slated for
 the v6.11 merge window.
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Merge tag 'cmpxchg.2024.05.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull cmpxchg updates from Paul McKenney:
 "Provide one-byte and two-byte cmpxchg() support on sparc32, parisc,
  and csky

  This provides native one-byte and two-byte cmpxchg() support for
  sparc32 and parisc, courtesy of Al Viro. This support is provided by
  the same hashed-array-of-locks technique used for the other atomic
  operations provided for these two platforms.

  There is also emulated one-byte cmpxchg() support for csky using a new
  cmpxchg_emu_u8() function that uses a four-byte cmpxchg() to emulate
  the one-byte variant.

  Similar patches for emulation of one-byte cmpxchg() for arc, sh, and
  xtensa have not yet received maintainer acks, so they are slated for
  the v6.11 merge window"

* tag 'cmpxchg.2024.05.11a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  csky: Emulate one-byte cmpxchg
  lib: Add one-byte emulation function
  parisc: add u16 support to cmpxchg()
  parisc: add missing export of __cmpxchg_u8()
  parisc: unify implementations of __cmpxchg_u{8,32,64}
  parisc: __cmpxchg_u32(): lift conversion into the callers
  sparc32: add __cmpxchg_u{8,16}() and teach __cmpxchg() to handle those sizes
  sparc32: unify __cmpxchg_u{32,64}
  sparc32: make the first argument of __cmpxchg_u64() volatile u64 *
  sparc32: make __cmpxchg_u32() return u32
2024-05-13 10:05:39 -07:00
Linus Torvalds
c0b9620bc3 RCU pull request for v6.10
This pull request contains the following branches:
 
 fixes.2024.04.15a: Fix a lockdep complain for lazy-preemptible kernel,
 remove redundant BH disable for TINY_RCU, remove redundant READ_ONCE()
 in tree.c, fix false positives KCSAN splat and fix buffer overflow in
 the print_cpu_stall_info().
 
 misc.2024.04.12a: Misc updates related to bpf, tracing and update the
 MAINTAINERS file.
 
 rcu-sync-normal-improve.2024.04.15a: An improvement of a normal
 synchronize_rcu() call in terms of latency. It maintains a separate
 track for sync. users only. This approach bypasses per-cpu nocb-lists
 thus sync-users do not depend on nocb-list length and how fast regular
 callbacks are processed.
 
 rcu-tasks.2024.04.15a: RCU tasks, switch tasks RCU grace periods to
 sleep at TASK_IDLE priority, fix some comments, add some diagnostic
 warning to the exit_tasks_rcu_start() and fix a buffer overflow in
 the show_rcu_tasks_trace_gp_kthread().
 
 rcutorture.2024.04.15a: Increase memory to guest OS, fix a Tasks
 Rude RCU testing, some updates for TREE09, dump mode information
 to debug GP kthread state, remove redundant READ_ONCE(), fix some
 comments about RCU_TORTURE_PIPE_LEN and pipe_count, remove some
 redundant pointer initialization, fix a hung splat task by when
 the rcutorture tests start to exit, fix invalid context warning,
 add '--do-kvfree' parameter to torture test and use slow register
 unregister callbacks only for rcutype test.
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Merge tag 'rcu.next.v6.10' of https://github.com/urezki/linux

Pull RCU updates from Uladzislau Rezki:

 - Fix a lockdep complain for lazy-preemptible kernel, remove redundant
   BH disable for TINY_RCU, remove redundant READ_ONCE() in tree.c, fix
   false positives KCSAN splat and fix buffer overflow in the
   print_cpu_stall_info().

 - Misc updates related to bpf, tracing and update the MAINTAINERS file.

 - An improvement of a normal synchronize_rcu() call in terms of
   latency. It maintains a separate track for sync. users only. This
   approach bypasses per-cpu nocb-lists thus sync-users do not depend on
   nocb-list length and how fast regular callbacks are processed.

 - RCU tasks: switch tasks RCU grace periods to sleep at TASK_IDLE
   priority, fix some comments, add some diagnostic warning to the
   exit_tasks_rcu_start() and fix a buffer overflow in the
   show_rcu_tasks_trace_gp_kthread().

 - RCU torture: Increase memory to guest OS, fix a Tasks Rude RCU
   testing, some updates for TREE09, dump mode information to debug GP
   kthread state, remove redundant READ_ONCE(), fix some comments about
   RCU_TORTURE_PIPE_LEN and pipe_count, remove some redundant pointer
   initialization, fix a hung splat task by when the rcutorture tests
   start to exit, fix invalid context warning, add '--do-kvfree'
   parameter to torture test and use slow register unregister callbacks
   only for rcutype test.

* tag 'rcu.next.v6.10' of https://github.com/urezki/linux: (48 commits)
  rcutorture: Use rcu_gp_slow_register/unregister() only for rcutype test
  torture: Scale --do-kvfree test time
  rcutorture: Fix invalid context warning when enable srcu barrier testing
  rcutorture: Make stall-tasks directly exit when rcutorture tests end
  rcutorture: Removing redundant function pointer initialization
  rcutorture: Make rcutorture support print rcu-tasks gp state
  rcutorture: Use the gp_kthread_dbg operation specified by cur_ops
  rcutorture: Re-use value stored to ->rtort_pipe_count instead of re-reading
  rcutorture: Fix rcu_torture_one_read() pipe_count overflow comment
  rcutorture: Remove extraneous rcu_torture_pipe_update_one() READ_ONCE()
  rcu: Allocate WQ with WQ_MEM_RECLAIM bit set
  rcu: Support direct wake-up of synchronize_rcu() users
  rcu: Add a trace event for synchronize_rcu_normal()
  rcu: Reduce synchronize_rcu() latency
  rcu: Fix buffer overflow in print_cpu_stall_info()
  rcu: Mollify sparse with RCU guard
  rcu-tasks: Fix show_rcu_tasks_trace_gp_kthread buffer overflow
  rcu-tasks: Fix the comments for tasks_rcu_exit_srcu_stall_timer
  rcu-tasks: Replace exit_tasks_rcu_start() initialization with WARN_ON_ONCE()
  rcu: Remove redundant CONFIG_PROVE_RCU #if condition
  ...
2024-05-13 09:49:06 -07:00
Linus Torvalds
736676f5c3 alpha: cleanups and build fixes
I had investigated dropping support for alpha EV5 and earlier a while
 ago after noticing that this is the only supported CPU family
 in the kernel without native byte access and that Debian has already
 dropped support for this generation last year [1] in order to
 improve performance for the newer machines.
 
 This topic came up again when Paul E. McKenney noticed that
 parts of the RCU code already rely on byte access and do not
 work on alpha EV5 reliably, so we decided on using my series to
 avoid the problem entirely.
 
 Al Viro did another series for alpha to address all the known build
 issues. I rebased his patches without any further changes and included
 it as a baseline for my work here to avoid conflicts and allow
 backporting the fixes to stable kernels for the now removed hardware
 support as well.
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Merge tag 'asm-generic-alpha' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull alpha updates from Arnd Bergmann:
 "I had investigated dropping support for alpha EV5 and earlier a while
  ago after noticing that this is the only supported CPU family in the
  kernel without native byte access and that Debian has already dropped
  support for this generation last year [1] in order to improve
  performance for the newer machines.

  This topic came up again when Paul McKenney noticed that parts of the
  RCU code already rely on byte access and do not work on alpha EV5
  reliably, so we decided on using my series to avoid the problem
  entirely.

  Al Viro did another series for alpha to address all the known build
  issues. I rebased his patches without any further changes and included
  it as a baseline for my work here to avoid conflicts and allow
  backporting the fixes to stable kernels for the now removed hardware
  support as well"

[ I dearly loved alpha back in the days, but the lack of byte and word
  operations was a horrible mistake and made everything worse -
  including very much the crazy IO contortions that resulted from it.

  It certainly wasn't the only mistake in the architecture, but it's the
  first-order issue.

  So while it's a bit sad to see the support for my first alpha go away,
  if you want to run museum hardware, maybe you should use museum
  kernels..    - Linus ]

* tag 'asm-generic-alpha' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  alpha: drop pre-EV56 support
  alpha: cabriolet: remove EV5 CPU support
  alpha: remove LCA and APECS based machines
  alpha: sable: remove early machine support
  alpha: remove DECpc AXP150 (Jensen) support
  alpha: trim the unused stuff from asm-offsets.c
  alpha: jensen, t2 - make __EXTERN_INLINE same as for the rest
  alpha: core_lca: take the unused functions out
  alpha: missing includes
  alpha: sys_sio: fix misspelled ifdefs
  alpha: don't make functions public without a reason
  alpha: add clone3() support
  alpha: fix modversions for strcpy() et.al.
  alpha: sort scr_mem{cpy,move}w() out
2024-05-13 09:14:57 -07:00
Linus Torvalds
6d1346f1bc soc: defconfig updates for 6.10
Most of the changes enable additional device driver modules and arm64
 platforms. In addition, the usb onboard-device support and ext4 security
 labels are turned on.
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Merge tag 'soc-defconfig-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC defconfig updates from Arnd Bergmann:
 "Most of the changes enable additional device driver modules and arm64
  platforms. In addition, the usb onboard-device support and ext4
  security labels are turned on"

* tag 'soc-defconfig-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (23 commits)
  arm64: defconfig: enable Airoha platform
  arm64: defconfig: enable Khadas TS050 panel as module
  arm64: defconfig: select INTERCONNECT_QCOM_SM6115 as built-in
  arm64: defconfig: Enable Tegra Security Engine
  arm64: defconfig: enable REGULATOR_QCOM_USB_VBUS
  ARM: imx_v6_v7_defconfig: Update ONBOARD_USB_HUB to ONBOAD_USB_DEV
  arm64: defconfig: enable ext4 security labels
  arm64: defconfig: qcom: enable X1E80100 sound card
  ARM: configs: sunxi: Enable DRM_DW_HDMI
  arm64: defconfig: build snd_bcm2835 as module
  arm64: defconfig: enable Rockchip Samsung USBDP PHY
  ARM: shmobile: defconfig: Refresh for v6.9-rc1
  arm64: defconfig: build ath12k as a module
  arm64: defconfig: Enable sc7280 display and gpu clock controllers
  ARM: imx_v6_v7_defconfig: Select CONFIG_USB_ONBOARD_HUB
  arm64: defconfig: Enable DRM_IMX8MP_DW_HDMI_BRIDGE as module
  arm64: defconfig: support Mali CSF-based GPUs
  arm64: defconfig: enable Rockchip RK3308 internal audio codec driver
  arm64: defconfig: Enable R9A09G057 SoC
  arm64: defconfig: Enable Renesas DA9062 PMIC
  ...
2024-05-13 09:05:18 -07:00
Linus Torvalds
0c2212926d soc: arm code changes for 6.10
The code changes are fairly minimal, there is a bit of conversion of
 the old orion5x platform to modern gpio descriptors, the Kconfig entry
 for the added EN7581 platform and a sysfs change for the i.MX PMU
 device.
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Merge tag 'soc-arm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC code changes from Arnd Bergmann:
 "The code changes are fairly minimal, there is a bit of conversion of
  the old orion5x platform to modern gpio descriptors, the Kconfig entry
  for the added EN7581 platform and a sysfs change for the i.MX PMU
  device"

* tag 'soc-arm-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: add Airoha EN7581 platform
  ARM: orion5x: Convert TS409 board to GPIO descriptors for LEDs
  ARM: orion5x: Convert Net2big board to GPIO descriptors for LEDs
  ARM: orion5x: Convert MV2120 board to GPIO descriptors for LEDs
  ARM: orion5x: Convert DNS323 board to GPIO descriptors for LEDs
  ARM: orion5x: Convert D2Net board to GPIO descriptors for LEDs
  ARM: imx: Assign parents for mmdc event_source devices
2024-05-13 08:58:55 -07:00
Linus Torvalds
14a60290ed soc: drivers for 6.10
As usual, these are updates for drivers that are specific to certain
 SoCs or firmware running on them. Notable updates include
 
  - The new STMicroelectronics STM32 "firewall" bus driver that is
    used to provide a barrier between different parts of an SoC
 
  - Lots of updates for the Qualcomm platform drivers, in particular
    SCM, which gets a rewrite of its initialization code
 
  - Firmware driver updates for Arm FF-A notification interrupts
    and indirect messaging, SCMI firmware support for pin control
    and vendor specific interfaces, and TEE firmware interface
    changes across multiple TEE drivers
 
  - A larger cleanup of the Mediatek CMDQ driver and some related bits
 
  - Kconfig changes for riscv drivers to prepare for adding Kanaan
    k230 support
 
  - Multiple minor updates for the TI sysc bus driver, memory controllers,
    hisilicon hccs and more
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Merge tag 'soc-drivers-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "As usual, these are updates for drivers that are specific to certain
  SoCs or firmware running on them.

  Notable updates include

   - The new STMicroelectronics STM32 "firewall" bus driver that is used
     to provide a barrier between different parts of an SoC

   - Lots of updates for the Qualcomm platform drivers, in particular
     SCM, which gets a rewrite of its initialization code

   - Firmware driver updates for Arm FF-A notification interrupts and
     indirect messaging, SCMI firmware support for pin control and
     vendor specific interfaces, and TEE firmware interface changes
     across multiple TEE drivers

   - A larger cleanup of the Mediatek CMDQ driver and some related bits

   - Kconfig changes for riscv drivers to prepare for adding Kanaan k230
     support

   - Multiple minor updates for the TI sysc bus driver, memory
     controllers, hisilicon hccs and more"

* tag 'soc-drivers-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (103 commits)
  firmware: qcom: uefisecapp: Allow on sc8180x Primus and Flex 5G
  soc: qcom: pmic_glink: Make client-lock non-sleeping
  dt-bindings: soc: qcom,wcnss: fix bluetooth address example
  soc/tegra: pmc: Add EQOS wake event for Tegra194 and Tegra234
  bus: stm32_firewall: fix off by one in stm32_firewall_get_firewall()
  bus: etzpc: introduce ETZPC firewall controller driver
  firmware: arm_ffa: Avoid queuing work when running on the worker queue
  bus: ti-sysc: Drop legacy idle quirk handling
  bus: ti-sysc: Drop legacy quirk handling for smartreflex
  bus: ti-sysc: Drop legacy quirk handling for uarts
  bus: ti-sysc: Add a description and copyrights
  bus: ti-sysc: Move check for no-reset-on-init
  soc: hisilicon: kunpeng_hccs: replace MAILBOX dependency with PCC
  soc: hisilicon: kunpeng_hccs: Add the check for obtaining complete port attribute
  firmware: arm_ffa: Fix memory corruption in ffa_msg_send2()
  bus: rifsc: introduce RIFSC firewall controller driver
  of: property: fw_devlink: Add support for "access-controller"
  soc: mediatek: mtk-socinfo: Correct the marketing name for MT8188GV
  soc: mediatek: mtk-socinfo: Add entry for MT8395AV/ZA Genio 1200
  soc: mediatek: mtk-mutex: Add support for MT8188 VPPSYS
  ...
2024-05-13 08:48:42 -07:00
Linus Torvalds
6c60000f0b soc: devicetree updates for 6.10, part 1
The updates this time are a bit smaller than most times, mainly because
 it is not totally dominated by new Qualcomm hardware support. Instead,
 we larger than average updates for Rockchips, NXP, Allwinner and TI.
 The only two new SoCs this time are both from NXP and are minor variants
 of already supported ones.
 
 The updates for aspeed, amlogic and mediatek came a little late, so
 I'm saving those for part 2 in a few days if everything turns out fine.
 
 New machines this time contain:
 
  - two Broadcom SoC based wireless routers from Asus
 
  - Five allwinner based consumer devices for gaming, set-top-box and
    eboot reader applications
 
  - Three older phones based on Qualcomm chips, plus the more recent
    Sony Xperia 1 V
 
  - 14 industrial and embedded boards based on NXP i.MX6, i.MX8,
    layerscape and s32g3 SoCs
 
  - six rockchips boards including another handheld game console
    and a few single-board computers
 
 On top of these, we have the usual cleanups for dtc warnings and
 updates to add more features to already merged machines.
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Merge tag 'soc-dt-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "The updates this time are a bit smaller than most times, mainly
  because it is not totally dominated by new Qualcomm hardware support.

  Instead, we larger than average updates for Rockchips, NXP, Allwinner
  and TI. The only two new SoCs this time are both from NXP and are
  minor variants of already supported ones.

  The updates for aspeed, amlogic and mediatek came a little late, so
  I'm saving those for part 2 in a few days if everything turns out
  fine.

  New machines this time contain:

   - two Broadcom SoC based wireless routers from Asus

   - Five allwinner based consumer devices for gaming, set-top-box and
     eboot reader applications

   - Three older phones based on Qualcomm chips, plus the more recent
     Sony Xperia 1 V

   - 14 industrial and embedded boards based on NXP i.MX6, i.MX8,
     layerscape and s32g3 SoCs

   - six rockchips boards including another handheld game console and a
     few single-board computers

  On top of these, we have the usual cleanups for dtc warnings and
  updates to add more features to already merged machines"

* tag 'soc-dt-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (612 commits)
  arm64: dts: marvell: espressobin-ultra: fix Ethernet Switch unit address
  arm64: dts: marvell: turris-mox: drop unneeded flash address/size-cells
  arm64: dts: marvell: eDPU: drop redundant address/size-cells
  arm64: dts: qcom: pm6150: correct USB VBUS regulator compatible
  arm64: dts: rockchip: add rk3588 pcie and php IOMMUs
  arm64: dts: rockchip: enable onboard spi flash for rock-3a
  arm64: dts: rockchip: add USB-C support to rk3588s-orangepi-5
  arm64: dts: rockchip: Enable GPU on Orange Pi 5
  arm64: dts: rockchip: enable GPU on khadas-edge2
  arm64: dts: rockchip: Add USB3 on Edgeble NCM6A-IO board
  arm64: dts: rockchip: Support poweroff on Edgeble Neural Compute Module
  arm64: dts: rockchip: Add Radxa ROCK 3C
  dt-bindings: arm: rockchip: add Radxa ROCK 3C
  arm64: dts: exynos: gs101: specify empty clocks for remaining pinctrl
  arm64: dts: exynos: gs101: specify bus clock for pinctrl_hsi2
  arm64: dts: exynos: gs101: specify bus clock for pinctrl_peric[01]
  arm64: dts: exynos: gs101: specify bus clock for pinctrl (far) alive
  arm64: dts: Add/fix /memory node unit-addresses
  arm64: dts: qcom: qcs404: fix bluetooth device address
  arm64: dts: qcom: sc8280xp-x13s: enable USB MP and fingerprint reader
  ...
2024-05-13 08:45:18 -07:00
Linus Torvalds
d65e1a0f30 - Store AP Query Configuration Information in a static buffer
- Rework the AP initialization and add missing cleanups to the error path
 
 - Swap IRQ and AP bus/device registration to avoid race conditions
 
 - Export prot_virt_guest symbol
 
 - Introduce AP configuration changes notifier interface to facilitate
   modularization of the AP bus
 
 - Add CONFIG_AP kernel configuration option to allow modularization of
   the AP bus
 
 - Rework CONFIG_ZCRYPT_DEBUG kernel configuration option description and
   dependency and rename it to CONFIG_AP_DEBUG
 
 - Convert sprintf() and snprintf() to sysfs_emit() in CIO code
 
 - Adjust indentation of RELOCS command build step
 
 - Make crypto performance counters upward compatible
 
 - Convert make_page_secure() and gmap_make_secure() to use folio
 
 - Rework channel-utilization-block (CUB) handling in preparation of
   introducing additional CUBs
 
 - Use attribute groups to simplify registration, removal and extension
   of measurement-related channel-path sysfs attributes
 
 - Add a per-channel-path binary "ext_measurement" sysfs attribute that
   provides access to extended channel-path measurement data
 
 - Export measurement data for all channel-measurement-groups (CMG), not
   only for a specific ones. This enables support of new CMG data formats
   in userspace without the need for kernel changes
 
 - Add a per-channel-path sysfs attribute "speed_bps" that provides the
   operating speed in bits per second or 0 if the operating speed is not
   available
 
 - The CIO tracepoint subchannel-type field "st" is incorrectly set to
   the value of subchannel-enabled SCHIB "ena" field. Fix that
 
 - Do not forcefully limit vmemmap starting address to MAX_PHYSMEM_BITS
 
 - Consider the maximum physical address available to a DCSS segment
   (512GB) when memory layout is set up
 
 - Simplify the virtual memory layout setup by reducing the size of
   identity mapping vs vmemmap overlap
 
 - Swap vmalloc and Lowcore/Real Memory Copy areas in virtual memory.
   This will allow to place the kernel image next to kernel modules
 
 - Move everyting KASLR related from <asm/setup.h> to <asm/page.h>
 
 - Put virtual memory layout information into a structure to improve
   code generation
 
 - Currently __kaslr_offset is the kernel offset in both physical and
   virtual memory spaces. Uncouple these offsets to allow uncoupling
   of the addresses spaces
 
 - Currently the identity mapping base address is implicit and is always
   set to zero. Make it explicit by putting into __identity_base persistent
   boot variable and use it in proper context
 
 - Introduce .amode31 section start and end macros AMODE31_START and
   AMODE31_END
 
 - Introduce OS_INFO entries that do not reference any data in memory,
   but rather provide only values
 
 - Store virtual memory layout in OS_INFO. It is read out by makedumpfile,
   crash and other tools
 
 - Store virtual memory layout in VMCORE_INFO. It is read out by crash and
   other tools when /proc/kcore device is used
 
 - Create additional PT_LOAD ELF program header that covers kernel image
   only, so that vmcore tools could locate kernel text and data when virtual
   and physical memory spaces are uncoupled
 
 - Uncouple physical and virtual address spaces
 
 - Map kernel at fixed location when KASLR mode is disabled. The location is
   defined by CONFIG_KERNEL_IMAGE_BASE kernel configuration value.
 
 - Rework deployment of kernel image for both compressed and uncompressed
   variants as defined by CONFIG_KERNEL_UNCOMPRESSED kernel configuration
   value
 
 - Move .vmlinux.relocs section in front of the compressed kernel.
   The interim section rescue step is avoided as result
 
 - Correct modules thunk offset calculation when branch target is more
   than 2GB away
 
 - Kernel modules contain their own set of expoline thunks. Now that the
   kernel modules area is less than 4GB away from kernel expoline thunks,
   make modules use kernel expolines. Also make EXPOLINE_EXTERN the default
   if the compiler supports it
 
 - userfaultfd can insert shared zeropages into processes running VMs,
   but that is not allowed for s390. Fallback to allocating a fresh
   zeroed anonymous folio and insert that instead
 
 - Re-enable shared zeropages for non-PV and non-skeys KVM guests
 
 - Rename hex2bitmap() to ap_hex2bitmap() and export it for external use
 
 - Add ap_config sysfs attribute to provide the means for setting or
   displaying adapters, domains and control domains assigned to a vfio-ap
   mediated device in a single operation
 
 - Make vfio_ap_mdev_link_queue() ignore duplicate link requests
 
 - Add write support to ap_config sysfs attribute to allow atomic update
   a vfio-ap mediated device state
 
 - Document ap_config sysfs attribute
 
 - Function os_info_old_init() is expected to be called only from a regular
   kdump kernel. Enable it to be called from a stand-alone dump kernel
 
 - Address gcc -Warray-bounds warning and fix array size in struct os_info
 
 - s390 does not support SMBIOS, so drop unneeded CONFIG_DMI checks
 
 - Use unwinder instead of __builtin_return_address() with ftrace to
   prevent returning of undefined values
 
 - Sections .hash and .gnu.hash are only created when CONFIG_PIE_BUILD
   kernel is enabled. Drop these for the case CONFIG_PIE_BUILD is disabled
 
 - Compile kernel with -fPIC and link with -no-pie to allow kpatch feature
   always succeed and drop the whole CONFIG_PIE_BUILD option-enabled code
 
 - Add missing virt_to_phys() converter for VSIE facility and crypto
   control blocks
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Merge tag 's390-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Alexander Gordeev:

 - Store AP Query Configuration Information in a static buffer

 - Rework the AP initialization and add missing cleanups to the error
   path

 - Swap IRQ and AP bus/device registration to avoid race conditions

 - Export prot_virt_guest symbol

 - Introduce AP configuration changes notifier interface to facilitate
   modularization of the AP bus

 - Add CONFIG_AP kernel configuration option to allow modularization of
   the AP bus

 - Rework CONFIG_ZCRYPT_DEBUG kernel configuration option description
   and dependency and rename it to CONFIG_AP_DEBUG

 - Convert sprintf() and snprintf() to sysfs_emit() in CIO code

 - Adjust indentation of RELOCS command build step

 - Make crypto performance counters upward compatible

 - Convert make_page_secure() and gmap_make_secure() to use folio

 - Rework channel-utilization-block (CUB) handling in preparation of
   introducing additional CUBs

 - Use attribute groups to simplify registration, removal and extension
   of measurement-related channel-path sysfs attributes

 - Add a per-channel-path binary "ext_measurement" sysfs attribute that
   provides access to extended channel-path measurement data

 - Export measurement data for all channel-measurement-groups (CMG), not
   only for a specific ones. This enables support of new CMG data
   formats in userspace without the need for kernel changes

 - Add a per-channel-path sysfs attribute "speed_bps" that provides the
   operating speed in bits per second or 0 if the operating speed is not
   available

 - The CIO tracepoint subchannel-type field "st" is incorrectly set to
   the value of subchannel-enabled SCHIB "ena" field. Fix that

 - Do not forcefully limit vmemmap starting address to MAX_PHYSMEM_BITS

 - Consider the maximum physical address available to a DCSS segment
   (512GB) when memory layout is set up

 - Simplify the virtual memory layout setup by reducing the size of
   identity mapping vs vmemmap overlap

 - Swap vmalloc and Lowcore/Real Memory Copy areas in virtual memory.
   This will allow to place the kernel image next to kernel modules

 - Move everyting KASLR related from <asm/setup.h> to <asm/page.h>

 - Put virtual memory layout information into a structure to improve
   code generation

 - Currently __kaslr_offset is the kernel offset in both physical and
   virtual memory spaces. Uncouple these offsets to allow uncoupling of
   the addresses spaces

 - Currently the identity mapping base address is implicit and is always
   set to zero. Make it explicit by putting into __identity_base
   persistent boot variable and use it in proper context

 - Introduce .amode31 section start and end macros AMODE31_START and
   AMODE31_END

 - Introduce OS_INFO entries that do not reference any data in memory,
   but rather provide only values

 - Store virtual memory layout in OS_INFO. It is read out by
   makedumpfile, crash and other tools

 - Store virtual memory layout in VMCORE_INFO. It is read out by crash
   and other tools when /proc/kcore device is used

 - Create additional PT_LOAD ELF program header that covers kernel image
   only, so that vmcore tools could locate kernel text and data when
   virtual and physical memory spaces are uncoupled

 - Uncouple physical and virtual address spaces

 - Map kernel at fixed location when KASLR mode is disabled. The
   location is defined by CONFIG_KERNEL_IMAGE_BASE kernel configuration
   value.

 - Rework deployment of kernel image for both compressed and
   uncompressed variants as defined by CONFIG_KERNEL_UNCOMPRESSED kernel
   configuration value

 - Move .vmlinux.relocs section in front of the compressed kernel. The
   interim section rescue step is avoided as result

 - Correct modules thunk offset calculation when branch target is more
   than 2GB away

 - Kernel modules contain their own set of expoline thunks. Now that the
   kernel modules area is less than 4GB away from kernel expoline
   thunks, make modules use kernel expolines. Also make EXPOLINE_EXTERN
   the default if the compiler supports it

 - userfaultfd can insert shared zeropages into processes running VMs,
   but that is not allowed for s390. Fallback to allocating a fresh
   zeroed anonymous folio and insert that instead

 - Re-enable shared zeropages for non-PV and non-skeys KVM guests

 - Rename hex2bitmap() to ap_hex2bitmap() and export it for external use

 - Add ap_config sysfs attribute to provide the means for setting or
   displaying adapters, domains and control domains assigned to a
   vfio-ap mediated device in a single operation

 - Make vfio_ap_mdev_link_queue() ignore duplicate link requests

 - Add write support to ap_config sysfs attribute to allow atomic update
   a vfio-ap mediated device state

 - Document ap_config sysfs attribute

 - Function os_info_old_init() is expected to be called only from a
   regular kdump kernel. Enable it to be called from a stand-alone dump
   kernel

 - Address gcc -Warray-bounds warning and fix array size in struct
   os_info

 - s390 does not support SMBIOS, so drop unneeded CONFIG_DMI checks

 - Use unwinder instead of __builtin_return_address() with ftrace to
   prevent returning of undefined values

 - Sections .hash and .gnu.hash are only created when CONFIG_PIE_BUILD
   kernel is enabled. Drop these for the case CONFIG_PIE_BUILD is
   disabled

 - Compile kernel with -fPIC and link with -no-pie to allow kpatch
   feature always succeed and drop the whole CONFIG_PIE_BUILD
   option-enabled code

 - Add missing virt_to_phys() converter for VSIE facility and crypto
   control blocks

* tag 's390-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (54 commits)
  Revert "s390: Relocate vmlinux ELF data to virtual address space"
  KVM: s390: vsie: Use virt_to_phys for crypto control block
  s390: Relocate vmlinux ELF data to virtual address space
  s390: Compile kernel with -fPIC and link with -no-pie
  s390: vmlinux.lds.S: Drop .hash and .gnu.hash for !CONFIG_PIE_BUILD
  s390/ftrace: Use unwinder instead of __builtin_return_address()
  s390/pci: Drop unneeded reference to CONFIG_DMI
  s390/os_info: Fix array size in struct os_info
  s390/os_info: Initialize old os_info in standalone dump kernel
  docs: Update s390 vfio-ap doc for ap_config sysfs attribute
  s390/vfio-ap: Add write support to sysfs attr ap_config
  s390/vfio-ap: Ignore duplicate link requests in vfio_ap_mdev_link_queue
  s390/vfio-ap: Add sysfs attr, ap_config, to export mdev state
  s390/ap: Externalize AP bus specific bitmap reading function
  s390/mm: Re-enable the shared zeropage for !PV and !skeys KVM guests
  mm/userfaultfd: Do not place zeropages when zeropages are disallowed
  s390/expoline: Make modules use kernel expolines
  s390/nospec: Correct modules thunk offset calculation
  s390/boot: Do not rescue .vmlinux.relocs section
  s390/boot: Rework deployment of the kernel image
  ...
2024-05-13 08:33:52 -07:00
Linus Torvalds
a38297e3fb Linux 6.9 2024-05-12 14:12:29 -07:00
Linus Torvalds
af300a3959 Fix Kselftest's vfork() side effects
See https://lore.kernel.org/r/20240511171445.904356-1-mic@digikod.net
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Merge tag 'kselftest-fix-vfork-2024-05-12' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull Kselftest fixes from Mickaël Salaün:
 "Fix Kselftest's vfork() side effects.

  As reported by Kernel Test Robot and Sean Christopherson, some
  tests fail since v6.9-rc1 . This is due to the use of vfork() which
  introduced some side effects. Similarly, while making it more generic,
  a previous commit made some Landlock file system tests flaky, and
  subject to the host's file system mount configuration.

  This fixes all these side effects by replacing vfork() with clone3()
  and CLONE_VFORK, which is cleaner (no arbitrary shared memory) and
  makes the Kselftest framework more robust"

Link: https://lore.kernel.org/oe-lkp/202403291015.1fcfa957-oliver.sang@intel.com
Link: https://lore.kernel.org/r/ZjPelW6-AbtYvslu@google.com
Link: https://lore.kernel.org/r/20240511171445.904356-1-mic@digikod.net

* tag 'kselftest-fix-vfork-2024-05-12' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  selftests/harness: Handle TEST_F()'s explicit exit codes
  selftests/harness: Fix vfork() side effects
  selftests/harness: Share _metadata between forked processes
  selftests/pidfd: Fix wrong expectation
  selftests/harness: Constify fixture variants
  selftests/landlock: Do not allocate memory in fixture data
  selftests/harness: Fix interleaved scheduling leading to race conditions
  selftests/harness: Fix fixture teardown
  selftests/landlock: Fix FS tests when run on a private mount point
  selftests/pidfd: Fix config for pidfd_setns_test
2024-05-12 13:01:59 -07:00
Linus Torvalds
2842076beb s390:
* Fix NULL pointer read on ioctl(KVM_CHECK_EXTENSION) for /dev/kvm.
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Merge tag 'for-linus-6.9' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fix from Paolo Bonzini:

 - Fix NULL pointer read on s390 in ioctl(KVM_CHECK_EXTENSION) for
   /dev/kvm

* tag 'for-linus-6.9' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: s390: Check kvm pointer when testing KVM_CAP_S390_HPAGE_1M
2024-05-12 12:15:39 -07:00
Linus Torvalds
ba16c1cf11 - Fix a race condition when clearing error count bits and toggling
the error interrupt throug the same register, in synopsys_edac
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Merge tag 'edac_urgent_for_v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fix from Borislav Petkov:

 - Fix a race condition when clearing error count bits and toggling the
   error interrupt throug the same register, in synopsys_edac

* tag 'edac_urgent_for_v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/synopsys: Fix ECC status and IRQ control race condition
2024-05-12 09:09:27 -07:00
Linus Torvalds
775a0eca33 - Add a new PCI ID which belongs to a new AMD CPU family 0x1a
- Ensure that that last level cache ID is set in all cases, in the AMD
   CPU topology parsing code, in order to prevent invalid scheduling
   domain CPU masks
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Merge tag 'x86_urgent_for_v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Add a new PCI ID which belongs to a new AMD CPU family 0x1a

 - Ensure that that last level cache ID is set in all cases, in the AMD
   CPU topology parsing code, in order to prevent invalid scheduling
   domain CPU masks

* tag 'x86_urgent_for_v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/topology/amd: Ensure that LLC ID is initialized
  x86/amd_nb: Add new PCI IDs for AMD family 0x1a
2024-05-12 08:54:28 -07:00
Mickaël Salaün
323feb3bdb
selftests/harness: Handle TEST_F()'s explicit exit codes
If TEST_F() explicitly calls exit(code) with code different than 0, then
_metadata->exit_code is set to this code (e.g. KVM_ONE_VCPU_TEST()).  We
need to keep in mind that _metadata->exit_code can be KSFT_SKIP while
the process exit code is 0.

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Will Drewry <wad@chromium.org>
Reported-by: Sean Christopherson <seanjc@google.com>
Tested-by: Sean Christopherson <seanjc@google.com>
Closes: https://lore.kernel.org/r/ZjPelW6-AbtYvslu@google.com
Fixes: 0710a1a73f ("selftests/harness: Merge TEST_F_FORK() into TEST_F()")
Link: https://lore.kernel.org/r/20240511171445.904356-11-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:47 +02:00
Mickaël Salaün
f453cc3002
selftests/harness: Fix vfork() side effects
Setting the time namespace with CLONE_NEWTIME returns -EUSERS if the
calling thread shares memory with another thread (because of the shared
vDSO), which is the case when it is created with vfork().

Fix pidfd_setns_test by replacing test harness's vfork() call with a
clone3() call with CLONE_VFORK, and an explicit sharing of the
_metadata and self objects.

Replace _metadata->teardown_parent with a new FIXTURE_TEARDOWN_PARENT()
helper that can replace FIXTURE_TEARDOWN().  This is a cleaner approach
and it enables to selectively share the fixture data between the child
process running tests and the parent process running the fixture
teardown.  This also avoids updating several tests to not rely on the
self object's copy-on-write property (e.g. storing the returned value of
a fork() call).

Cc: Christian Brauner <brauner@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Günther Noack <gnoack@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Will Drewry <wad@chromium.org>
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202403291015.1fcfa957-oliver.sang@intel.com
Fixes: 0710a1a73f ("selftests/harness: Merge TEST_F_FORK() into TEST_F()")
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-10-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:47 +02:00
Mickaël Salaün
24cf65a622
selftests/harness: Share _metadata between forked processes
Unconditionally share _metadata between all forked processes, which
enables to actually catch errors which were previously ignored.

This is required for a following commit replacing vfork() with clone3()
and CLONE_VFORK (i.e. not sharing the full memory) .  It should also be
useful to share _metadata to extend expectations to test process's
forks.  For instance, this change identified a wrong expectation in
pidfd_setns_test.

Because this _metadata is used by the new XFAIL_ADD(), use a global
pointer initialized in TEST_F().  This is OK because only XFAIL_ADD()
use it, and XFAIL_ADD() already depends on TEST_F().

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Will Drewry <wad@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-9-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:46 +02:00
Mickaël Salaün
821bc4a8fd
selftests/pidfd: Fix wrong expectation
Replace a wrong EXPECT_GT(self->child_pid_exited, 0) with EXPECT_GE(),
which will be actually tested on the parent and child sides with a
following commit.

Cc: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20240511171445.904356-8-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:46 +02:00
Mickaël Salaün
cc80aa9a22
selftests/harness: Constify fixture variants
FIXTURE_VARIANT_ADD() types are passed as const pointers to
FIXTURE_TEARDOWN().  Make that explicit by constifying the variants
declarations.

Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Will Drewry <wad@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-7-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:45 +02:00
Mickaël Salaün
3656bc2342
selftests/landlock: Do not allocate memory in fixture data
Do not allocate self->dir_path in the test process because this would
not be visible in the FIXTURE_TEARDOWN() process when relying on
fork()/clone3() instead of vfork().

This change is required for a following commit removing vfork() call to
not break the layout3_fs.* test cases.

Cc: Günther Noack <gnoack@google.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-6-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:44 +02:00
Mickaël Salaün
a86f18903d
selftests/harness: Fix interleaved scheduling leading to race conditions
Fix a race condition when running several FIXTURE_TEARDOWN() managing
the same resource.  This fixes a race condition in the Landlock file
system tests when creating or unmounting the same directory.

Using clone3() with CLONE_VFORK guarantees that the child and grandchild
test processes are sequentially scheduled.  This is implemented with a
new clone3_vfork() helper replacing the fork() call.

This avoids triggering this error in __wait_for_test():
  Test ended in some other way [127]

Cc: Christian Brauner <brauner@kernel.org>
Cc: David S. Miller <davem@davemloft.net>
Cc: Günther Noack <gnoack@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Will Drewry <wad@chromium.org>
Fixes: 41cca0542d ("selftests/harness: Fix TEST_F()'s vfork handling")
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-5-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:43 +02:00
Mickaël Salaün
fff37bd32c
selftests/harness: Fix fixture teardown
Make sure fixture teardowns are run when test cases failed, including
when _metadata->teardown_parent is set to true.

Make sure only one fixture teardown is run per test case, handling the
case where the test child forks.

Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Shengyu Li <shengyu.li.evgeny@gmail.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Fixes: 72d7cb5c19 ("selftests/harness: Prevent infinite loop due to Assert in FIXTURE_TEARDOWN")
Fixes: 0710a1a73f ("selftests/harness: Merge TEST_F_FORK() into TEST_F()")
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-4-mic@digikod.net
Rule: add
Link: https://lore.kernel.org/stable/20240506165518.474504-4-mic%40digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:43 +02:00
Mickaël Salaün
7e4042abe2
selftests/landlock: Fix FS tests when run on a private mount point
According to the test environment, the mount point of the test's working
directory may be shared or not, which changes the visibility of the
nested "tmp" mount point for the test's parent process calling
umount("tmp").

This was spotted while running tests in containers [1], where mount
points are private.

Cc: Günther Noack <gnoack@google.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Link: https://github.com/landlock-lsm/landlock-test-tools/pull/4 [1]
Fixes: 41cca0542d ("selftests/harness: Fix TEST_F()'s vfork handling")
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20240511171445.904356-3-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:42 +02:00
Mickaël Salaün
37dc2e0d38
selftests/pidfd: Fix config for pidfd_setns_test
Required by switch_timens() to open /proc/self/ns/time_for_children.

CONFIG_GENERIC_VDSO_TIME_NS is not available on UML, so pidfd_setns_test
cannot be run successfully on this architecture.

Cc: Shuah Khan <skhan@linuxfoundation.org>
Fixes: 2b40c5db73 ("selftests/pidfd: add pidfd setns tests")
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20240511171445.904356-2-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2024-05-11 19:18:39 +02:00
Paul E. McKenney
5800e77d88 csky: Emulate one-byte cmpxchg
Use the new cmpxchg_emu_u8() to emulate one-byte cmpxchg() on csky.

[ paulmck: Apply kernel test robot feedback. ]
[ paulmck: Drop two-byte support per Arnd Bergmann feedback. ]

Co-developed-by: Yujie Liu <yujie.liu@intel.com>
Signed-off-by: Yujie Liu <yujie.liu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Tested-by: Yujie Liu <yujie.liu@intel.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <linux-csky@vger.kernel.org>
2024-05-11 07:07:07 -07:00
Linus Torvalds
cf87f46fd3 drm fixes for 6.9 final
core:
 - fix connector debugging output
 
 i915:
 - Automate CCS Mode setting during engine resets
 - Fix audio time stamp programming for DP
 - Fix parsing backlight BDB data
 
 xe:
 - Fix use zero-length element array
 - Move more from system wq to ordered private wq
 - Do not ignore return for drmm_mutex_init
 
 amdgpu:
 - DCN 3.5 fix
 - MST DSC fixes
 - S0i3 fix
 - S4 fix
 - HDP MMIO mapping fix
 - Fix a regression in visible vram handling
 
 amdkfd:
 - Spatial partition fix
 
 meson:
 - dw-hdmi: power-up fixes
 - dw-hdmi: add badngap setting for g12
 
 nouveau:
 - revert SG_DEBUG fix that has a side effect
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Merge tag 'drm-fixes-2024-05-11' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "This should be the last set of fixes for 6.9, i915, xe and amdgpu are
  the bulk here, one of the previous nouveau fixes turned up an issue,
  so reverting it, otherwise one core and a couple of meson fixes.

  core:
   - fix connector debugging output

  i915:
   - Automate CCS Mode setting during engine resets
   - Fix audio time stamp programming for DP
   - Fix parsing backlight BDB data

  xe:
   - Fix use zero-length element array
   - Move more from system wq to ordered private wq
   - Do not ignore return for drmm_mutex_init

  amdgpu:
   - DCN 3.5 fix
   - MST DSC fixes
   - S0i3 fix
   - S4 fix
   - HDP MMIO mapping fix
   - Fix a regression in visible vram handling

  amdkfd:
   - Spatial partition fix

  meson:
   - dw-hdmi: power-up fixes
   - dw-hdmi: add badngap setting for g12

  nouveau:
   - revert SG_DEBUG fix that has a side effect"

* tag 'drm-fixes-2024-05-11' of https://gitlab.freedesktop.org/drm/kernel:
  Revert "drm/nouveau/firmware: Fix SG_DEBUG error with nvkm_firmware_ctor()"
  drm/amdgpu: Fix comparison in amdgpu_res_cpu_visible
  drm/amdkfd: don't allow mapping the MMIO HDP page with large pages
  drm/xe: Use ordered WQ for G2H handler
  drm/xe/guc: Check error code when initializing the CT mutex
  drm/xe/ads: Use flexible-array
  Revert "drm/amdkfd: Add partition id field to location_id"
  dm/amd/pm: Fix problems with reboot/shutdown for some SMU 13.0.4/13.0.11 users
  drm/amd/display: MST DSC check for older devices
  drm/amd/display: Fix idle optimization checks for multi-display and dual eDP
  drm/amd/display: Fix DSC-re-computing
  drm/amd/display: Enable urgent latency adjustments for DCN35
  drm/connector: Add \n to message about demoting connector force-probes
  drm/i915/bios: Fix parsing backlight BDB data
  drm/i915/audio: Fix audio time stamp programming for DP
  drm/i915/gt: Automate CCS Mode setting during engine resets
  drm/meson: dw-hdmi: add bandgap setting for g12
  drm/meson: dw-hdmi: power up phy on device init
2024-05-10 14:37:05 -07:00
Linus Torvalds
c22c3e0753 18 hotfixes, 7 of which are cc:stable.
More fixups for this cycle's page_owner updates.  And a few userfaultfd
 fixes.  Otherwise, random singletons - see the individual changelogs for
 details.
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Merge tag 'mm-hotfixes-stable-2024-05-10-13-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM fixes from Andrew Morton:
 "18 hotfixes, 7 of which are cc:stable.

  More fixups for this cycle's page_owner updates. And a few userfaultfd
  fixes. Otherwise, random singletons - see the individual changelogs
  for details"

* tag 'mm-hotfixes-stable-2024-05-10-13-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Barry Song
  selftests/mm: fix powerpc ARCH check
  mailmap: add entry for John Garry
  XArray: set the marks correctly when splitting an entry
  selftests/vDSO: fix runtime errors on LoongArch
  selftests/vDSO: fix building errors on LoongArch
  mm,page_owner: don't remove __GFP_NOLOCKDEP in add_stack_record_to_list
  fs/proc/task_mmu: fix uffd-wp confusion in pagemap_scan_pmd_entry()
  fs/proc/task_mmu: fix loss of young/dirty bits during pagemap scan
  mm/vmalloc: fix return value of vb_alloc if size is 0
  mm: use memalloc_nofs_save() in page_cache_ra_order()
  kmsan: compiler_types: declare __no_sanitize_or_inline
  lib/test_xarray.c: fix error assumptions on check_xa_multi_store_adv_add()
  tools: fix userspace compilation with new test_xarray changes
  MAINTAINERS: update URL's for KEYS/KEYRINGS_INTEGRITY and TPM DEVICE DRIVER
  mm: page_owner: fix wrong information in dump_page_owner
  maple_tree: fix mas_empty_area_rev() null pointer dereference
  mm/userfaultfd: reset ptes when close() for wr-protected ones
2024-05-10 14:16:03 -07:00
Dave Airlie
a222a6470d Revert "drm/nouveau/firmware: Fix SG_DEBUG error with nvkm_firmware_ctor()"
This reverts commit 52a6947bf5.

This causes loading failures in
[    0.367379] nouveau 0000:01:00.0: NVIDIA GP104 (134000a1)
[    0.474499] nouveau 0000:01:00.0: bios: version 86.04.50.80.13
[    0.474620] nouveau 0000:01:00.0: pmu: firmware unavailable
[    0.474977] nouveau 0000:01:00.0: fb: 8192 MiB GDDR5
[    0.484371] nouveau 0000:01:00.0: sec2(acr): mbox 00000001 00000000
[    0.484377] nouveau 0000:01:00.0: sec2(acr):load: boot failed: -5
[    0.484379] nouveau 0000:01:00.0: acr: init failed, -5
[    0.484466] nouveau 0000:01:00.0: init failed with -5
[    0.484468] nouveau: DRM-master:00000000:00000080: init failed with -5
[    0.484470] nouveau 0000:01:00.0: DRM-master: Device allocation failed: -5
[    0.485078] nouveau 0000:01:00.0: probe with driver nouveau failed with error -50

I tried tracking it down but ran out of time this week, will revisit next week.

Reported-by: Dan Moulding <dan@danm.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2024-05-11 07:04:10 +10:00
Dave Airlie
b61821bb32 Short summary of fixes pull:
core:
 - fix connector debugging output
 
 meson:
 - dw-hdmi: power-up fixes
 - dw-hdmi: add badngap setting for g12
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Merge tag 'drm-misc-fixes-2024-05-10' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

core:
- fix connector debugging output

meson:
- dw-hdmi: power-up fixes
- dw-hdmi: add badngap setting for g12

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510072027.GA9131@linux.fritz.box
2024-05-11 07:01:16 +10:00
Linus Torvalds
cfb4be1a61 gpio fixes for v6.9
- fix a performance regression in GPIO requesting and releasing after
   the conversion to SRCU
 - fix a use-after-free bug due to a race-condition
 - fix leaking stack memory to user-space in a GPIO uABI corner case
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Merge tag 'gpio-fixes-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:
 "Some last-minute fixes for this release from the GPIO subsystem.

  The first two address a regression in performance reported to me after
  the conversion to using SRCU in GPIOLIB that was merged during the
  v6.9 merge window. The second patch is not technically a fix but since
  after the first one we no longer need to use a per-descriptor SRCU
  struct, I think it's worth to simplify the code before it gets
  released on Sunday.

  The next two commits fix two memory issues: one use-after-free bug and
  one instance of possibly leaking kernel stack memory to user-space.

  Summary:

   - fix a performance regression in GPIO requesting and releasing after
     the conversion to SRCU

   - fix a use-after-free bug due to a race-condition

   - fix leaking stack memory to user-space in a GPIO uABI corner case"

* tag 'gpio-fixes-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: cdev: fix uninitialised kfifo
  gpiolib: cdev: Fix use after free in lineinfo_changed_notify
  gpiolib: use a single SRCU struct for all GPIO descriptors
  gpiolib: fix the speed of descriptor label setting with SRCU
2024-05-10 14:01:00 -07:00
Dave Airlie
06fbf84f46 amd-drm-fixes-6.9-2024-05-10:
amdgpu:
 - DCN 3.5 fix
 - MST DSC fixes
 - S0i3 fix
 - S4 fix
 - HDP MMIO mapping fix
 - Fix a regression in visible vram handling
 
 amdkfd:
 - Spatial partition fix
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Merge tag 'amd-drm-fixes-6.9-2024-05-10' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.9-2024-05-10:

amdgpu:
- DCN 3.5 fix
- MST DSC fixes
- S0i3 fix
- S4 fix
- HDP MMIO mapping fix
- Fix a regression in visible vram handling

amdkfd:
- Spatial partition fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510171110.1394940-1-alexander.deucher@amd.com
2024-05-11 06:42:45 +10:00
Barry Song
672614a3ed mailmap: add entry for Barry Song
Include a .mailmap entry to synchronize with both my past and current
emails.  Among them, three business mailboxes are dead.

Link: https://lkml.kernel.org/r/20240506042009.10854-1-21cnbao@gmail.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-10 12:55:36 -07:00
Michael Ellerman
7e6423441b selftests/mm: fix powerpc ARCH check
In commit 0518dbe97f ("selftests/mm: fix cross compilation with LLVM")
the logic to detect the machine architecture in the Makefile was changed
to use ARCH, and only fallback to uname -m if ARCH is unset.  However the
tests of ARCH were not updated to account for the fact that ARCH is
"powerpc" for powerpc builds, not "ppc64".

Fix it by changing the checks to look for "powerpc", and change the
uname -m logic to convert "ppc64.*" into "powerpc".

With that fixed the following tests now build for powerpc again:
 * protection_keys
 * va_high_addr_switch
 * virtual_address_range
 * write_to_hugetlbfs

Link: https://lkml.kernel.org/r/20240506115825.66415-1-mpe@ellerman.id.au
Fixes: 0518dbe97f ("selftests/mm: fix cross compilation with LLVM")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>	[6.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-10 12:55:36 -07:00
Linus Torvalds
f4345f05c0 block-6.9-20240510
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Merge tag 'block-6.9-20240510' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
     - nvme target fixes (Sagi, Dan, Maurizo)
     - new vendor quirk for broken MSI (Sean)

 - Virtual boundary fix for a regression in this merge window (Ming)

* tag 'block-6.9-20240510' of git://git.kernel.dk/linux:
  nvmet-rdma: fix possible bad dereference when freeing rsps
  nvmet: prevent sprintf() overflow in nvmet_subsys_nsid_exists()
  nvmet: make nvmet_wq unbound
  nvmet-auth: return the error code to the nvmet_auth_ctrl_hash() callers
  nvme-pci: Add quirk for broken MSIs
  block: set default max segment size in case of virt_boundary
2024-05-10 10:24:16 -07:00
Linus Torvalds
ed44935c33 spi: Fixes for v6.9
Two device specific fixes here, one avoiding glitches on chip select
 with the STM32 driver and one for incorrectly configured clocks on the
 Microchip QSPI controller.
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Merge tag 'spi-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "Two device specific fixes here, one avoiding glitches on chip select
  with the STM32 driver and one for incorrectly configured clocks on the
  Microchip QSPI controller"

* tag 'spi-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: microchip-core-qspi: fix setting spi bus clock rate
  spi: stm32: enable controller before asserting CS
2024-05-10 10:20:49 -07:00