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Author SHA1 Message Date
Linus Torvalds
d2bac0823d - Fix DM core's IO submission (which include dm-io and dm-bufio) such 
that a bio's IO priority is propagated. Work focused on enabling
   both DM crypt and verity targets to retain the appropriate IO
   priority.
 
 - Fix DM raid reshape logic to not allow an empty flush bio to be
   requeued due to false concern about the bio, which doesn't have a
   data payload, accessing beyond the end of the device.
 
 - Fix DM core's internal resume so that it properly calls both presume
   and resume methods, which fixes the potential for a postsuspend and
   resume imbalance.
 
 - Update DM verity target to set DM_TARGET_SINGLETON flag because it
   doesn't make sense to have a DM table with a mix of targets that
   include dm-verity.
 
 - Small cleanups in DM crypt, thin, and integrity targets.
 
 - Fix references to dm-devel mailing list to use latest list address.
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Merge tag 'for-6.9/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mike Snitzer:

 - Fix DM core's IO submission (which include dm-io and dm-bufio) such
   that a bio's IO priority is propagated. Work focused on enabling both
   DM crypt and verity targets to retain the appropriate IO priority

 - Fix DM raid reshape logic to not allow an empty flush bio to be
   requeued due to false concern about the bio, which doesn't have a
   data payload, accessing beyond the end of the device

 - Fix DM core's internal resume so that it properly calls both presume
   and resume methods, which fixes the potential for a postsuspend and
   resume imbalance

 - Update DM verity target to set DM_TARGET_SINGLETON flag because it
   doesn't make sense to have a DM table with a mix of targets that
   include dm-verity

 - Small cleanups in DM crypt, thin, and integrity targets

 - Fix references to dm-devel mailing list to use latest list address

* tag 'for-6.9/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: call the resume method on internal suspend
  dm raid: fix false positive for requeue needed during reshape
  dm-integrity: set max_integrity_segments in dm_integrity_io_hints
  dm: update relevant MODULE_AUTHOR entries to latest dm-devel mailing list
  dm ioctl: update DM_DRIVER_EMAIL to new dm-devel mailing list
  dm verity: set DM_TARGET_SINGLETON feature flag
  dm crypt: Fix IO priority lost when queuing write bios
  dm verity: Fix IO priority lost when reading FEC and hash
  dm bufio: Support IO priority
  dm io: Support IO priority
  dm crypt: remove redundant state settings after waking up
  dm thin: add braces around conditional code that spans lines
 2024-03-13 09:38:10 -07:00
Linus Torvalds
57aaf9134c ata changes for 6.9-rc1 
- Do not enable LPM for external ports (hotplug-capable ports or eSATA
    ports), as the HBA will not be able to detect hot plug removal events
    when LPM is enabled. (from me)
 
  - Drop the board type board_ahci_low_power. Now when we make sure that we
    won't enable LPM for external ports, we can always set the LPM policy to
    CONFIG_SATA_MOBILE_LPM_POLICY for internal ports. There is thus no
    longer any need for the board type board_ahci_low_power, so it can be
    removed. (As before, LPM features not supported by the HBA and/or the
    device will not be enabled, regardless of the LPM policy Kconfig.)
    (from Mario Limonciello)
 
    Note that the default CONFIG_SATA_MOBILE_LPM_POLICY value is still 0
    (which will not try to enable any LPM features), however, most Linux
    distributions override this and set it to 3 (Medium power with DIPM).
    We intend to change the default to 3 in the coming cycles, but we will
    wait a cycle or two.
 
  - Add board type board_ahci_pcs_quirk and make all legacy Intel platforms
    use it. The Intel PCS quirk was being applied to basically all Intel
    platforms, which caused some issues (the device failing to come back
    after a reset), when being applied to newer Intel platforms where it
    shouldn't have been applied. Add board type board_ahci_pcs_quirk and
    make legacy Intel platforms use it. New platforms can be added using
    board type board_ahci (which will not have the quirk applied).
    (from me)
 
  - Rename board_ahci_nosntf to board_ahci_pcs_quirk_no_sntf to more clearly
    highlight that it applies two different quirks. (from me)
 
  - Modify the ahci_broken_devslp() quirk to be implemented like all the
    other quirks (i.e. define a board type for the quirk). (from me)
 
  - Drop unused board_ahci_noncq board type. (from me)
 
  - Rename board_ahci_nomsi to board_ahci_no_msi to match the other board
    types. (from me)
 
  - Make pata_parport_bus_type const. (from Ricardo B. Marliere)
 
  - Remove at91 compact flash device tree binding. (The binding is not used
    by any driver.) (from Hari Prasath Gujulan Elango)
 
  - Convert MediaTek device tree binding to json-schema.
    (from Rafał Miłecki)
 
  - At boot, print the number of implemented ports, instead of printing the
    maximum number of ports supported by the HBA silicon. (from me)
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Merge tag 'ata-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata updates from Niklas Cassel:

 - Do not enable LPM for external ports (hotplug-capable ports or eSATA
   ports), as the HBA will not be able to detect hot plug removal events
   when LPM is enabled (me)

 - Drop the board type board_ahci_low_power. Now when we make sure that
   we won't enable LPM for external ports, we can always set the LPM
   policy to CONFIG_SATA_MOBILE_LPM_POLICY for internal ports. There is
   thus no longer any need for the board type board_ahci_low_power, so
   it can be removed. (As before, LPM features not supported by the HBA
   and/or the device will not be enabled, regardless of the LPM policy
   Kconfig) (Mario Limonciello)

   Note that the default CONFIG_SATA_MOBILE_LPM_POLICY value is still 0
   (which will not try to enable any LPM features), however, most Linux
   distributions override this and set it to 3 (Medium power with DIPM).
   We intend to change the default to 3 in the coming cycles, but we
   will wait a cycle or two.

 - Add board type board_ahci_pcs_quirk and make all legacy Intel
   platforms use it. The Intel PCS quirk was being applied to basically
   all Intel platforms, which caused some issues (the device failing to
   come back after a reset), when being applied to newer Intel platforms
   where it shouldn't have been applied.

   New platforms can be added using board type board_ahci, which will
   not have the quirk applied (me)

 - Rename board_ahci_nosntf to board_ahci_pcs_quirk_no_sntf to more
   clearly highlight that it applies two different quirks (me)

 - Modify the ahci_broken_devslp() quirk to be implemented like all the
   other quirks (i.e. define a board type for the quirk) (me)

 - Drop unused board_ahci_noncq board type (me)

 - Rename board_ahci_nomsi to board_ahci_no_msi to match the other board
   types (me)

 - Make pata_parport_bus_type const (Ricardo B. Marliere)

 - Remove at91 compact flash device tree binding. (The binding is not
   used by any driver.) (from Hari Prasath Gujulan Elango)

 - Convert MediaTek device tree binding to json-schema (Rafał Miłecki)

 - At boot, print the number of implemented ports, instead of printing
   the maximum number of ports supported by the HBA silicon (me)

* tag 'ata-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  ahci: print the number of implemented ports
  dt-bindings: ata: convert MediaTek controller to the json-schema
  ahci: rename board_ahci_nomsi
  ahci: drop unused board_ahci_noncq
  ahci: clean up ahci_broken_devslp quirk
  ahci: rename board_ahci_nosntf
  ahci: clean up intel_pcs_quirk
  ata: ahci: Drop low power policy board type
  ata: ahci: do not enable LPM on external ports
  ata: ahci: drop hpriv param from ahci_update_initial_lpm_policy()
  ata: ahci: a hotplug capable port is an external port
  ata: ahci: move marking of external port earlier
  dt-bindings: ata: atmel: remove at91 compact flash documentation
  ata: pata_parport: make pata_parport_bus_type const
 2024-03-13 09:29:53 -07:00
Linus Torvalds
7d62cb2a59 dma-mapping updates for Linux 6.9 
- leak pages on dma_set_decrypted() failure (Rick Edgecombe)
  - add a new swiotlb debugfs file (ZhangPeng)
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Merge tag 'dma-mapping-6.9-2024-03-11' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - fix leaked pages on dma_set_decrypted() failure (Rick Edgecombe)

 - add a new swiotlb debugfs file (ZhangPeng)

* tag 'dma-mapping-6.9-2024-03-11' of git://git.infradead.org/users/hch/dma-mapping:
  dma-direct: Leak pages on dma_set_decrypted() failure
  swiotlb: add debugfs to track swiotlb transient pool usage
 2024-03-13 09:23:21 -07:00
Linus Torvalds
8c9c2f851b IOMMU Updates for Linux v6.9 
Including:
 
 	- Core changes:
 	  - Constification of bus_type pointer
 	  - Preparations for user-space page-fault delivery
 	  - Use a named kmem_cache for IOVA magazines
 
 	- Intel VT-d changes from Lu Baolu:
 	  - Add RBTree to track iommu probed devices
 	  - Add Intel IOMMU debugfs document
 	  - Cleanup and refactoring
 
 	- ARM-SMMU Updates from Will Deacon:
 	  - Device-tree binding updates for a bunch of Qualcomm SoCs
 	  - SMMUv2: Support for Qualcomm X1E80100 MDSS
 	  - SMMUv3: Significant rework of the driver's STE manipulation and
 	    domain handling code. This is the initial part of a larger scale
 	    rework aiming to improve the driver's implementation of the
 	    IOMMU-API in preparation for hooking up IOMMUFD support.
 
 	- AMD-Vi Updates:
 	  - Refactor GCR3 table support for SVA
 	  - Cleanups
 
 	- Some smaller cleanups and fixes
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Merge tag 'iommu-updates-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:
 "Core changes:
    - Constification of bus_type pointer
    - Preparations for user-space page-fault delivery
    - Use a named kmem_cache for IOVA magazines

  Intel VT-d changes from Lu Baolu:
    - Add RBTree to track iommu probed devices
    - Add Intel IOMMU debugfs document
    - Cleanup and refactoring

  ARM-SMMU Updates from Will Deacon:
    - Device-tree binding updates for a bunch of Qualcomm SoCs
    - SMMUv2: Support for Qualcomm X1E80100 MDSS
    - SMMUv3: Significant rework of the driver's STE manipulation and
      domain handling code. This is the initial part of a larger scale
      rework aiming to improve the driver's implementation of the
      IOMMU-API in preparation for hooking up IOMMUFD support.

  AMD-Vi Updates:
    - Refactor GCR3 table support for SVA
    - Cleanups

  Some smaller cleanups and fixes"

* tag 'iommu-updates-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (88 commits)
  iommu: Fix compilation without CONFIG_IOMMU_INTEL
  iommu/amd: Fix sleeping in atomic context
  iommu/dma: Document min_align_mask assumption
  iommu/vt-d: Remove scalabe mode in domain_context_clear_one()
  iommu/vt-d: Remove scalable mode context entry setup from attach_dev
  iommu/vt-d: Setup scalable mode context entry in probe path
  iommu/vt-d: Fix NULL domain on device release
  iommu: Add static iommu_ops->release_domain
  iommu/vt-d: Improve ITE fault handling if target device isn't present
  iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected
  PCI: Make pci_dev_is_disconnected() helper public for other drivers
  iommu/vt-d: Use device rbtree in iopf reporting path
  iommu/vt-d: Use rbtree to track iommu probed devices
  iommu/vt-d: Merge intel_svm_bind_mm() into its caller
  iommu/vt-d: Remove initialization for dynamically heap-allocated rcu_head
  iommu/vt-d: Remove treatment for revoking PASIDs with pending page faults
  iommu/vt-d: Add the document for Intel IOMMU debugfs
  iommu/vt-d: Use kcalloc() instead of kzalloc()
  iommu/vt-d: Remove INTEL_IOMMU_BROKEN_GFX_WA
  iommu: re-use local fwnode variable in iommu_ops_from_fwnode()
  ...
 2024-03-13 09:15:30 -07:00
Linus Torvalds
b0546776ad printk changes for 6.9 
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Merge tag 'printk-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:
 "Improve the behavior during panic. The issues were found when testing
  the ongoing changes introducing atomic consoles and printk kthreads:

   - pr_flush() has to wait for the last reserved record instead of the
     last finalized one. Note that records are finalized in random order
     when generated by more CPUs in parallel.

   - Ignore non-finalized records during panic(). Messages printed on
     panic-CPU are always finalized. Messages printed by other CPUs
     might never be finalized when the CPUs get stopped.

   - Block new printk() calls on non-panic CPUs completely. Backtraces
     are printed before entering the panic mode. Later messages would
     just mess information printed by the panic CPU.

   - Do not take console_lock in console_flush_on_panic() at all. The
     original code did try_lock()/console_unlock(). The unlock part
     might cause a deadlock when panic() happened in a scheduler code.

   - Fix conversion of 64-bit sequence number for 32-bit atomic
     operations"

* tag 'printk-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  dump_stack: Do not get cpu_sync for panic CPU
  panic: Flush kernel log buffer at the end
  printk: Avoid non-panic CPUs writing to ringbuffer
  printk: Disable passing console lock owner completely during panic()
  printk: ringbuffer: Skip non-finalized records in panic
  printk: Wait for all reserved records with pr_flush()
  printk: ringbuffer: Cleanup reader terminology
  printk: Add this_cpu_in_panic()
  printk: For @suppress_panic_printk check for other CPU in panic
  printk: ringbuffer: Clarify special lpos values
  printk: ringbuffer: Do not skip non-finalized records with prb_next_seq()
  printk: Use prb_first_seq() as base for 32bit seq macros
  printk: Adjust mapping for 32bit seq macros
  printk: nbcon: Relocate 32bit seq macros
 2024-03-12 20:54:50 -07:00
Linus Torvalds
f88c3fb81c mm, slab: remove last vestiges of SLAB_MEM_SPREAD 
Yes, yes, I know the slab people were planning on going slow and letting
every subsystem fight this thing on their own.  But let's just rip off
the band-aid and get it over and done with.  I don't want to see a
number of unnecessary pull requests just to get rid of a flag that no
longer has any meaning.

This was mainly done with a couple of 'sed' scripts and then some manual
cleanup of the end result.

Link: https://lore.kernel.org/all/CAHk-=wji0u+OOtmAOD-5JV3SXcRJF___k_+8XNKmak0yd5vW1Q@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2024-03-12 20:32:19 -07:00
Linus Torvalds
0ea680eda6 slab changes for 6.9 
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Merge tag 'slab-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab

Pull slab updates from Vlastimil Babka:

 - Freelist loading optimization (Chengming Zhou)

   When the per-cpu slab is depleted and a new one loaded from the cpu
   partial list, optimize the loading to avoid an irq enable/disable
   cycle. This results in a 3.5% performance improvement on the "perf
   bench sched messaging" test.

 - Kernel boot parameters cleanup after SLAB removal (Xiongwei Song)

   Due to two different main slab implementations we've had boot
   parameters prefixed either slab_ and slub_ with some later becoming
   an alias as both implementations gained the same functionality (i.e.
   slab_nomerge vs slub_nomerge). In order to eventually get rid of the
   implementation-specific names, the canonical and documented
   parameters are now all prefixed slab_ and the slub_ variants become
   deprecated but still working aliases.

 - SLAB_ kmem_cache creation flags cleanup (Vlastimil Babka)

   The flags had hardcoded #define values which became tedious and
   error-prone when adding new ones. Assign the values via an enum that
   takes care of providing unique bit numbers. Also deprecate
   SLAB_MEM_SPREAD which was only used by SLAB, so it's a no-op since
   SLAB removal. Assign it an explicit zero value. The removals of the
   flag usage are handled independently in the respective subsystems,
   with a final removal of any leftover usage planned for the next
   release.

 - Misc cleanups and fixes (Chengming Zhou, Xiaolei Wang, Zheng Yejian)

   Includes removal of unused code or function parameters and a fix of a
   memleak.

* tag 'slab-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  slab: remove PARTIAL_NODE slab_state
  mm, slab: remove memcg_from_slab_obj()
  mm, slab: remove the corner case of inc_slabs_node()
  mm/slab: Fix a kmemleak in kmem_cache_destroy()
  mm, slab, kasan: replace kasan_never_merge() with SLAB_NO_MERGE
  mm, slab: use an enum to define SLAB_ cache creation flags
  mm, slab: deprecate SLAB_MEM_SPREAD flag
  mm, slab: fix the comment of cpu partial list
  mm, slab: remove unused object_size parameter in kmem_cache_flags()
  mm/slub: remove parameter 'flags' in create_kmalloc_caches()
  mm/slub: remove unused parameter in next_freelist_entry()
  mm/slub: remove full list manipulation for non-debug slab
  mm/slub: directly load freelist from cpu partial slab in the likely case
  mm/slub: make the description of slab_min_objects helpful in doc
  mm/slub: replace slub_$params with slab_$params in slub.rst
  mm/slub: unify all sl[au]b parameters with "slab_$param"
  Documentation: kernel-parameters: remove noaliencache
 2024-03-12 20:14:54 -07:00
Linus Torvalds
cc4a875cf3 lsm/stable-6.9 PR 20240312 
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Merge tag 'lsm-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm

Pull lsm updates from Paul Moore:

 - Promote IMA/EVM to a proper LSM

   This is the bulk of the diffstat, and the source of all the changes
   in the VFS code. Prior to the start of the LSM stacking work it was
   important that IMA/EVM were separate from the rest of the LSMs,
   complete with their own hooks, infrastructure, etc. as it was the
   only way to enable IMA/EVM at the same time as a LSM.

   However, now that the bulk of the LSM infrastructure supports
   multiple simultaneous LSMs, we can simplify things greatly by
   bringing IMA/EVM into the LSM infrastructure as proper LSMs. This is
   something I've wanted to see happen for quite some time and Roberto
   was kind enough to put in the work to make it happen.

 - Use the LSM hook default values to simplify the call_int_hook() macro

   Previously the call_int_hook() macro required callers to supply a
   default return value, despite a default value being specified when
   the LSM hook was defined.

   This simplifies the macro by using the defined default return value
   which makes life easier for callers and should also reduce the number
   of return value bugs in the future (we've had a few pop up recently,
   hence this work).

 - Use the KMEM_CACHE() macro instead of kmem_cache_create()

   The guidance appears to be to use the KMEM_CACHE() macro when
   possible and there is no reason why we can't use the macro, so let's
   use it.

 - Fix a number of comment typos in the LSM hook comment blocks

   Not much to say here, we fixed some questionable grammar decisions in
   the LSM hook comment blocks.

* tag 'lsm-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: (28 commits)
  cred: Use KMEM_CACHE() instead of kmem_cache_create()
  lsm: use default hook return value in call_int_hook()
  lsm: fix typos in security/security.c comment headers
  integrity: Remove LSM
  ima: Make it independent from 'integrity' LSM
  evm: Make it independent from 'integrity' LSM
  evm: Move to LSM infrastructure
  ima: Move IMA-Appraisal to LSM infrastructure
  ima: Move to LSM infrastructure
  integrity: Move integrity_kernel_module_request() to IMA
  security: Introduce key_post_create_or_update hook
  security: Introduce inode_post_remove_acl hook
  security: Introduce inode_post_set_acl hook
  security: Introduce inode_post_create_tmpfile hook
  security: Introduce path_post_mknod hook
  security: Introduce file_release hook
  security: Introduce file_post_open hook
  security: Introduce inode_post_removexattr hook
  security: Introduce inode_post_setattr hook
  security: Align inode_setattr hook definition with EVM
  ...
 2024-03-12 20:03:34 -07:00
Linus Torvalds
ca661c5e1d selinux/stable-6.9 PR 20240312 
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Merge tag 'selinux-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux

Pull selinux updates from Paul Moore:
 "Really only a few notable changes:

   - Continue the coding style/formatting fixup work

     This is the bulk of the diffstat in this pull request, with the
     focus this time around being the security/selinux/ss directory.

     We've only got a couple of files left to cleanup and once we're
     done with that we can start enabling some automatic style
     verfication and introduce tooling to help new folks format their
     code correctly.

   - Don't restrict xattr copy-up when SELinux policy is not loaded

     This helps systems that use overlayfs, or similar filesystems,
     preserve their SELinux labels during early boot when the SELinux
     policy has yet to be loaded.

   - Reduce the work we do during inode initialization time

     This isn't likely to show up in any benchmark results, but we
     removed an unnecessary SELinux object class lookup/calculation
     during inode initialization.

   - Correct the return values in selinux_socket_getpeersec_dgram()

     We had some inconsistencies with respect to our return values
     across selinux_socket_getpeersec_dgram() and
     selinux_socket_getpeersec_stream().

     This provides a more uniform set of error codes across the two
     functions and should help make it easier for users to identify
     the source of a failure"

* tag 'selinux-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: (24 commits)
  selinux: fix style issues in security/selinux/ss/symtab.c
  selinux: fix style issues in security/selinux/ss/symtab.h
  selinux: fix style issues in security/selinux/ss/sidtab.c
  selinux: fix style issues in security/selinux/ss/sidtab.h
  selinux: fix style issues in security/selinux/ss/services.h
  selinux: fix style issues in security/selinux/ss/policydb.c
  selinux: fix style issues in security/selinux/ss/policydb.h
  selinux: fix style issues in security/selinux/ss/mls_types.h
  selinux: fix style issues in security/selinux/ss/mls.c
  selinux: fix style issues in security/selinux/ss/mls.h
  selinux: fix style issues in security/selinux/ss/hashtab.c
  selinux: fix style issues in security/selinux/ss/hashtab.h
  selinux: fix style issues in security/selinux/ss/ebitmap.c
  selinux: fix style issues in security/selinux/ss/ebitmap.h
  selinux: fix style issues in security/selinux/ss/context.h
  selinux: fix style issues in security/selinux/ss/context.h
  selinux: fix style issues in security/selinux/ss/constraint.h
  selinux: fix style issues in security/selinux/ss/conditional.c
  selinux: fix style issues in security/selinux/ss/conditional.h
  selinux: fix style issues in security/selinux/ss/avtab.c
  ...
 2024-03-12 19:48:03 -07:00
Linus Torvalds
9187210eee Networking changes for 6.9. 
Core & protocols
 ----------------
 
  - Large effort by Eric to lower rtnl_lock pressure and remove locks:
 
    - Make commonly used parts of rtnetlink (address, route dumps etc.)
      lockless, protected by RCU instead of rtnl_lock.
 
    - Add a netns exit callback which already holds rtnl_lock,
      allowing netns exit to take rtnl_lock once in the core
      instead of once for each driver / callback.
 
    - Remove locks / serialization in the socket diag interface.
 
    - Remove 6 calls to synchronize_rcu() while holding rtnl_lock.
 
    - Remove the dev_base_lock, depend on RCU where necessary.
 
  - Support busy polling on a per-epoll context basis. Poll length
    and budget parameters can be set independently of system defaults.
 
  - Introduce struct net_hotdata, to make sure read-mostly global config
    variables fit in as few cache lines as possible.
 
  - Add optional per-nexthop statistics to ease monitoring / debug
    of ECMP imbalance problems.
 
  - Support TCP_NOTSENT_LOWAT in MPTCP.
 
  - Ensure that IPv6 temporary addresses' preferred lifetimes are long
    enough, compared to other configured lifetimes, and at least 2 sec.
 
  - Support forwarding of ICMP Error messages in IPSec, per RFC 4301.
 
  - Add support for the independent control state machine for bonding
    per IEEE 802.1AX-2008 5.4.15 in addition to the existing coupled
    control state machine.
 
  - Add "network ID" to MCTP socket APIs to support hosts with multiple
    disjoint MCTP networks.
 
  - Re-use the mono_delivery_time skbuff bit for packets which user
    space wants to be sent at a specified time. Maintain the timing
    information while traversing veth links, bridge etc.
 
  - Take advantage of MSG_SPLICE_PAGES for RxRPC DATA and ACK packets.
 
  - Simplify many places iterating over netdevs by using an xarray
    instead of a hash table walk (hash table remains in place, for
    use on fastpaths).
 
  - Speed up scanning for expired routes by keeping a dedicated list.
 
  - Speed up "generic" XDP by trying harder to avoid large allocations.
 
  - Support attaching arbitrary metadata to netconsole messages.
 
 Things we sprinkled into general kernel code
 --------------------------------------------
 
  - Enforce VM_IOREMAP flag and range in ioremap_page_range and introduce
    VM_SPARSE kind and vm_area_[un]map_pages (used by bpf_arena).
 
  - Rework selftest harness to enable the use of the full range of
    ksft exit code (pass, fail, skip, xfail, xpass).
 
 Netfilter
 ---------
 
  - Allow userspace to define a table that is exclusively owned by a daemon
    (via netlink socket aliveness) without auto-removing this table when
    the userspace program exits. Such table gets marked as orphaned and
    a restarting management daemon can re-attach/regain ownership.
 
  - Speed up element insertions to nftables' concatenated-ranges set type.
    Compact a few related data structures.
 
 BPF
 ---
 
  - Add BPF token support for delegating a subset of BPF subsystem
    functionality from privileged system-wide daemons such as systemd
    through special mount options for userns-bound BPF fs to a trusted
    & unprivileged application.
 
  - Introduce bpf_arena which is sparse shared memory region between BPF
    program and user space where structures inside the arena can have
    pointers to other areas of the arena, and pointers work seamlessly
    for both user-space programs and BPF programs.
 
  - Introduce may_goto instruction that is a contract between the verifier
    and the program. The verifier allows the program to loop assuming it's
    behaving well, but reserves the right to terminate it.
 
  - Extend the BPF verifier to enable static subprog calls in spin lock
    critical sections.
 
  - Support registration of struct_ops types from modules which helps
    projects like fuse-bpf that seeks to implement a new struct_ops type.
 
  - Add support for retrieval of cookies for perf/kprobe multi links.
 
  - Support arbitrary TCP SYN cookie generation / validation in the TC
    layer with BPF to allow creating SYN flood handling in BPF firewalls.
 
  - Add code generation to inline the bpf_kptr_xchg() helper which
    improves performance when stashing/popping the allocated BPF objects.
 
 Wireless
 --------
 
  - Add SPP (signaling and payload protected) AMSDU support.
 
  - Support wider bandwidth OFDMA, as required for EHT operation.
 
 Driver API
 ----------
 
  - Major overhaul of the Energy Efficient Ethernet internals to support
    new link modes (2.5GE, 5GE), share more code between drivers
    (especially those using phylib), and encourage more uniform behavior.
    Convert and clean up drivers.
 
  - Define an API for querying per netdev queue statistics from drivers.
 
  - IPSec: account in global stats for fully offloaded sessions.
 
  - Create a concept of Ethernet PHY Packages at the Device Tree level,
    to allow parameterizing the existing PHY package code.
 
  - Enable Rx hashing (RSS) on GTP protocol fields.
 
 Misc
 ----
 
  - Improvements and refactoring all over networking selftests.
 
  - Create uniform module aliases for TC classifiers, actions,
    and packet schedulers to simplify creating modprobe policies.
 
  - Address all missing MODULE_DESCRIPTION() warnings in networking.
 
  - Extend the Netlink descriptions in YAML to cover message encapsulation
    or "Netlink polymorphism", where interpretation of nested attributes
    depends on link type, classifier type or some other "class type".
 
 Drivers
 -------
 
  - Ethernet high-speed NICs:
    - Add a new driver for Marvell's Octeon PCI Endpoint NIC VF.
    - Intel (100G, ice, idpf):
      - support E825-C devices
    - nVidia/Mellanox:
      - support devices with one port and multiple PCIe links
    - Broadcom (bnxt):
      - support n-tuple filters
      - support configuring the RSS key
    - Wangxun (ngbe/txgbe):
      - implement irq_domain for TXGBE's sub-interrupts
    - Pensando/AMD:
      - support XDP
      - optimize queue submission and wakeup handling (+17% bps)
      - optimize struct layout, saving 28% of memory on queues
 
  - Ethernet NICs embedded and virtual:
    - Google cloud vNIC:
      - refactor driver to perform memory allocations for new queue
        config before stopping and freeing the old queue memory
    - Synopsys (stmmac):
      - obey queueMaxSDU and implement counters required by 802.1Qbv
    - Renesas (ravb):
      - support packet checksum offload
      - suspend to RAM and runtime PM support
 
  - Ethernet switches:
    - nVidia/Mellanox:
      - support for nexthop group statistics
    - Microchip:
      - ksz8: implement PHY loopback
      - add support for KSZ8567, a 7-port 10/100Mbps switch
 
  - PTP:
    - New driver for RENESAS FemtoClock3 Wireless clock generator.
    - Support OCP PTP cards designed and built by Adva.
 
  - CAN:
    - Support recvmsg() flags for own, local and remote traffic
      on CAN BCM sockets.
    - Support for esd GmbH PCIe/402 CAN device family.
    - m_can:
      - Rx/Tx submission coalescing
      - wake on frame Rx
 
  - WiFi:
    - Intel (iwlwifi):
      - enable signaling and payload protected A-MSDUs
      - support wider-bandwidth OFDMA
      - support for new devices
      - bump FW API to 89 for AX devices; 90 for BZ/SC devices
    - MediaTek (mt76):
      - mt7915: newer ADIE version support
      - mt7925: radio temperature sensor support
    - Qualcomm (ath11k):
      - support 6 GHz station power modes: Low Power Indoor (LPI),
        Standard Power) SP and Very Low Power (VLP)
      - QCA6390 & WCN6855: support 2 concurrent station interfaces
      - QCA2066 support
    - Qualcomm (ath12k):
      - refactoring in preparation for Multi-Link Operation (MLO) support
      - 1024 Block Ack window size support
      - firmware-2.bin support
      - support having multiple identical PCI devices (firmware needs to
        have ATH12K_FW_FEATURE_MULTI_QRTR_ID)
      - QCN9274: support split-PHY devices
      - WCN7850: enable Power Save Mode in station mode
      - WCN7850: P2P support
    - RealTek:
      - rtw88: support for more rtw8811cu and rtw8821cu devices
      - rtw89: support SCAN_RANDOM_SN and SET_SCAN_DWELL
      - rtlwifi: speed up USB firmware initialization
      - rtwl8xxxu:
        - RTL8188F: concurrent interface support
        - Channel Switch Announcement (CSA) support in AP mode
    - Broadcom (brcmfmac):
      - per-vendor feature support
      - per-vendor SAE password setup
      - DMI nvram filename quirk for ACEPC W5 Pro
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Large effort by Eric to lower rtnl_lock pressure and remove locks:

      - Make commonly used parts of rtnetlink (address, route dumps
        etc) lockless, protected by RCU instead of rtnl_lock.

      - Add a netns exit callback which already holds rtnl_lock,
        allowing netns exit to take rtnl_lock once in the core instead
        of once for each driver / callback.

      - Remove locks / serialization in the socket diag interface.

      - Remove 6 calls to synchronize_rcu() while holding rtnl_lock.

      - Remove the dev_base_lock, depend on RCU where necessary.

   - Support busy polling on a per-epoll context basis. Poll length and
     budget parameters can be set independently of system defaults.

   - Introduce struct net_hotdata, to make sure read-mostly global
     config variables fit in as few cache lines as possible.

   - Add optional per-nexthop statistics to ease monitoring / debug of
     ECMP imbalance problems.

   - Support TCP_NOTSENT_LOWAT in MPTCP.

   - Ensure that IPv6 temporary addresses' preferred lifetimes are long
     enough, compared to other configured lifetimes, and at least 2 sec.

   - Support forwarding of ICMP Error messages in IPSec, per RFC 4301.

   - Add support for the independent control state machine for bonding
     per IEEE 802.1AX-2008 5.4.15 in addition to the existing coupled
     control state machine.

   - Add "network ID" to MCTP socket APIs to support hosts with multiple
     disjoint MCTP networks.

   - Re-use the mono_delivery_time skbuff bit for packets which user
     space wants to be sent at a specified time. Maintain the timing
     information while traversing veth links, bridge etc.

   - Take advantage of MSG_SPLICE_PAGES for RxRPC DATA and ACK packets.

   - Simplify many places iterating over netdevs by using an xarray
     instead of a hash table walk (hash table remains in place, for use
     on fastpaths).

   - Speed up scanning for expired routes by keeping a dedicated list.

   - Speed up "generic" XDP by trying harder to avoid large allocations.

   - Support attaching arbitrary metadata to netconsole messages.

  Things we sprinkled into general kernel code:

   - Enforce VM_IOREMAP flag and range in ioremap_page_range and
     introduce VM_SPARSE kind and vm_area_[un]map_pages (used by
     bpf_arena).

   - Rework selftest harness to enable the use of the full range of ksft
     exit code (pass, fail, skip, xfail, xpass).

  Netfilter:

   - Allow userspace to define a table that is exclusively owned by a
     daemon (via netlink socket aliveness) without auto-removing this
     table when the userspace program exits. Such table gets marked as
     orphaned and a restarting management daemon can re-attach/regain
     ownership.

   - Speed up element insertions to nftables' concatenated-ranges set
     type. Compact a few related data structures.

  BPF:

   - Add BPF token support for delegating a subset of BPF subsystem
     functionality from privileged system-wide daemons such as systemd
     through special mount options for userns-bound BPF fs to a trusted
     & unprivileged application.

   - Introduce bpf_arena which is sparse shared memory region between
     BPF program and user space where structures inside the arena can
     have pointers to other areas of the arena, and pointers work
     seamlessly for both user-space programs and BPF programs.

   - Introduce may_goto instruction that is a contract between the
     verifier and the program. The verifier allows the program to loop
     assuming it's behaving well, but reserves the right to terminate
     it.

   - Extend the BPF verifier to enable static subprog calls in spin lock
     critical sections.

   - Support registration of struct_ops types from modules which helps
     projects like fuse-bpf that seeks to implement a new struct_ops
     type.

   - Add support for retrieval of cookies for perf/kprobe multi links.

   - Support arbitrary TCP SYN cookie generation / validation in the TC
     layer with BPF to allow creating SYN flood handling in BPF
     firewalls.

   - Add code generation to inline the bpf_kptr_xchg() helper which
     improves performance when stashing/popping the allocated BPF
     objects.

  Wireless:

   - Add SPP (signaling and payload protected) AMSDU support.

   - Support wider bandwidth OFDMA, as required for EHT operation.

  Driver API:

   - Major overhaul of the Energy Efficient Ethernet internals to
     support new link modes (2.5GE, 5GE), share more code between
     drivers (especially those using phylib), and encourage more
     uniform behavior. Convert and clean up drivers.

   - Define an API for querying per netdev queue statistics from
     drivers.

   - IPSec: account in global stats for fully offloaded sessions.

   - Create a concept of Ethernet PHY Packages at the Device Tree level,
     to allow parameterizing the existing PHY package code.

   - Enable Rx hashing (RSS) on GTP protocol fields.

  Misc:

   - Improvements and refactoring all over networking selftests.

   - Create uniform module aliases for TC classifiers, actions, and
     packet schedulers to simplify creating modprobe policies.

   - Address all missing MODULE_DESCRIPTION() warnings in networking.

   - Extend the Netlink descriptions in YAML to cover message
     encapsulation or "Netlink polymorphism", where interpretation of
     nested attributes depends on link type, classifier type or some
     other "class type".

  Drivers:

   - Ethernet high-speed NICs:
      - Add a new driver for Marvell's Octeon PCI Endpoint NIC VF.
      - Intel (100G, ice, idpf):
         - support E825-C devices
      - nVidia/Mellanox:
         - support devices with one port and multiple PCIe links
      - Broadcom (bnxt):
         - support n-tuple filters
         - support configuring the RSS key
      - Wangxun (ngbe/txgbe):
         - implement irq_domain for TXGBE's sub-interrupts
      - Pensando/AMD:
         - support XDP
         - optimize queue submission and wakeup handling (+17% bps)
         - optimize struct layout, saving 28% of memory on queues

   - Ethernet NICs embedded and virtual:
      - Google cloud vNIC:
         - refactor driver to perform memory allocations for new queue
           config before stopping and freeing the old queue memory
      - Synopsys (stmmac):
         - obey queueMaxSDU and implement counters required by 802.1Qbv
      - Renesas (ravb):
         - support packet checksum offload
         - suspend to RAM and runtime PM support

   - Ethernet switches:
      - nVidia/Mellanox:
         - support for nexthop group statistics
      - Microchip:
         - ksz8: implement PHY loopback
         - add support for KSZ8567, a 7-port 10/100Mbps switch

   - PTP:
      - New driver for RENESAS FemtoClock3 Wireless clock generator.
      - Support OCP PTP cards designed and built by Adva.

   - CAN:
      - Support recvmsg() flags for own, local and remote traffic on CAN
        BCM sockets.
      - Support for esd GmbH PCIe/402 CAN device family.
      - m_can:
         - Rx/Tx submission coalescing
         - wake on frame Rx

   - WiFi:
      - Intel (iwlwifi):
         - enable signaling and payload protected A-MSDUs
         - support wider-bandwidth OFDMA
         - support for new devices
         - bump FW API to 89 for AX devices; 90 for BZ/SC devices
      - MediaTek (mt76):
         - mt7915: newer ADIE version support
         - mt7925: radio temperature sensor support
      - Qualcomm (ath11k):
         - support 6 GHz station power modes: Low Power Indoor (LPI),
           Standard Power) SP and Very Low Power (VLP)
         - QCA6390 & WCN6855: support 2 concurrent station interfaces
         - QCA2066 support
      - Qualcomm (ath12k):
         - refactoring in preparation for Multi-Link Operation (MLO)
           support
         - 1024 Block Ack window size support
         - firmware-2.bin support
         - support having multiple identical PCI devices (firmware needs
           to have ATH12K_FW_FEATURE_MULTI_QRTR_ID)
         - QCN9274: support split-PHY devices
         - WCN7850: enable Power Save Mode in station mode
         - WCN7850: P2P support
      - RealTek:
         - rtw88: support for more rtw8811cu and rtw8821cu devices
         - rtw89: support SCAN_RANDOM_SN and SET_SCAN_DWELL
         - rtlwifi: speed up USB firmware initialization
         - rtwl8xxxu:
             - RTL8188F: concurrent interface support
             - Channel Switch Announcement (CSA) support in AP mode
      - Broadcom (brcmfmac):
         - per-vendor feature support
         - per-vendor SAE password setup
         - DMI nvram filename quirk for ACEPC W5 Pro"

* tag 'net-next-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2255 commits)
  nexthop: Fix splat with CONFIG_DEBUG_PREEMPT=y
  nexthop: Fix out-of-bounds access during attribute validation
  nexthop: Only parse NHA_OP_FLAGS for dump messages that require it
  nexthop: Only parse NHA_OP_FLAGS for get messages that require it
  bpf: move sleepable flag from bpf_prog_aux to bpf_prog
  bpf: hardcode BPF_PROG_PACK_SIZE to 2MB * num_possible_nodes()
  selftests/bpf: Add kprobe multi triggering benchmarks
  ptp: Move from simple ida to xarray
  vxlan: Remove generic .ndo_get_stats64
  vxlan: Do not alloc tstats manually
  devlink: Add comments to use netlink gen tool
  nfp: flower: handle acti_netdevs allocation failure
  net/packet: Add getsockopt support for PACKET_COPY_THRESH
  net/netlink: Add getsockopt support for NETLINK_LISTEN_ALL_NSID
  selftests/bpf: Add bpf_arena_htab test.
  selftests/bpf: Add bpf_arena_list test.
  selftests/bpf: Add unit tests for bpf_arena_alloc/free_pages
  bpf: Add helper macro bpf_addr_space_cast()
  libbpf: Recognize __arena global variables.
  bpftool: Recognize arena map type
  ...
 2024-03-12 17:44:08 -07:00
Linus Torvalds
1f44039766 A moderatly busy cycle for development this time around. 
- Some cleanup of the main index page for easier navigation
 
 - Rework some of the other top-level pages for better readability and, with
   luck, fewer merge conflicts in the future.
 
 - Submit-checklist improvements, hopefully the first of many.
 
 - New Italian translations
 
 - A fair number of kernel-doc fixes and improvements.  We have also dropped
   the recommendation to use an old version of Sphinx.
 
 - A new document from Thorsten on bisection
 
 ...and lots of fixes and updates.
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Merge tag 'docs-6.9' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "A moderatly busy cycle for development this time around.

   - Some cleanup of the main index page for easier navigation

   - Rework some of the other top-level pages for better readability
     and, with luck, fewer merge conflicts in the future.

   - Submit-checklist improvements, hopefully the first of many.

   - New Italian translations

   - A fair number of kernel-doc fixes and improvements. We have also
     dropped the recommendation to use an old version of Sphinx.

   - A new document from Thorsten on bisection

  ... and lots of fixes and updates"

* tag 'docs-6.9' of git://git.lwn.net/linux: (54 commits)
  docs: verify/bisect: fixes, finetuning, and support for Arch
  docs: Makefile: Add dependency to $(YNL_INDEX) for targets other than htmldocs
  docs: Move ja_JP/howto.rst to ja_JP/process/howto.rst
  docs: submit-checklist: use subheadings
  docs: submit-checklist: structure by category
  docs: new text on bisecting which also covers bug validation
  docs: drop the version constraints for sphinx and dependencies
  docs: kerneldoc-preamble.sty: Remove code for Sphinx <2.4
  docs: Restore "smart quotes" for quotes
  docs/zh_CN: accurate translation of "function"
  docs: Include simplified link titles in main index
  docs: Correct formatting of title in admin-guide/index.rst
  docs: kernel_feat.py: fix build error for missing files
  MAINTAINERS: Set the field name for subsystem profile section
  kasan: Add documentation for CONFIG_KASAN_EXTRA_INFO
  Fixed case issue with 'fault-injection' in documentation
  kernel-doc: handle #if in enums as well
  Documentation: update mailing list addresses
  doc: kerneldoc.py: fix indentation
  scripts/kernel-doc: simplify signature printing
  ...
 2024-03-12 15:18:34 -07:00
Linus Torvalds
3749bda230 audit/stable-6.9 PR 20240312 
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Merge tag 'audit-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

Pull audit updates from Paul Moore:
 "Two small audit patches:

   - Use the KMEM_CACHE() macro instead of kmem_cache_create()

     The guidance appears to be to use the KMEM_CACHE() macro when
     possible and there is no reason why we can't use the macro, so
     let's use it.

   - Remove an unnecessary assignment in audit_dupe_lsm_field()

     A return value variable was assigned a value in its declaration,
     but the declaration value is overwritten before the return value
     variable is ever referenced; drop the assignment at declaration
     time"

* tag 'audit-pr-20240312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
  audit: use KMEM_CACHE() instead of kmem_cache_create()
  audit: remove unnecessary assignment in audit_dupe_lsm_field()
 2024-03-12 15:10:51 -07:00
Linus Torvalds
681ba318a6 Smack updates for v6.9. 
Improvements to the initialization of in-memory inodes.
 A fix in ramfs to propery ensure the initialization of
 in-memory inodes.
 Removal of duplicated code in smack_cred_transfer().
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Merge tag 'Smack-for-6.9' of https://github.com/cschaufler/smack-next

Pull smack updates from Casey Schaufler:

 - Improvements to the initialization of in-memory inodes

 - A fix in ramfs to propery ensure the initialization of in-memory
   inodes

 - Removal of duplicated code in smack_cred_transfer()

* tag 'Smack-for-6.9' of https://github.com/cschaufler/smack-next:
  Smack: use init_task_smack() in smack_cred_transfer()
  ramfs: Initialize security of in-memory inodes
  smack: Initialize the in-memory inode in smack_inode_init_security()
  smack: Always determine inode labels in smack_inode_init_security()
  smack: Handle SMACK64TRANSMUTE in smack_inode_setsecurity()
  smack: Set SMACK64TRANSMUTE only for dirs in smack_inode_setxattr()
 2024-03-12 15:08:06 -07:00
Linus Torvalds
7f1a277409 seccomp updates for v6.9-rc1 
- Improve reliability of selftests (Terry Tritton, Kees Cook)
 
 - Fix strict-aliasing warning in samples (Arnd Bergmann)
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Merge tag 'seccomp-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp updates from Kees Cook:
 "There are no core kernel changes here; it's entirely selftests and
  samples:

   - Improve reliability of selftests (Terry Tritton, Kees Cook)

   - Fix strict-aliasing warning in samples (Arnd Bergmann)"

* tag 'seccomp-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  samples: user-trap: fix strict-aliasing warning
  selftests/seccomp: Pin benchmark to single CPU
  selftests/seccomp: user_notification_addfd check nextfd is available
  selftests/seccomp: Change the syscall used in KILL_THREAD test
  selftests/seccomp: Handle EINVAL on unshare(CLONE_NEWPID)
 2024-03-12 15:05:27 -07:00
Linus Torvalds
216532e147 hardening updates for v6.9-rc1 
- string.h and related header cleanups (Tanzir Hasan, Andy Shevchenko)
 
 - VMCI memcpy() usage and struct_size() cleanups (Vasiliy Kovalev, Harshit
   Mogalapalli)
 
 - selftests/powerpc: Fix load_unaligned_zeropad build failure (Michael
   Ellerman)
 
 - hardened Kconfig fragment updates (Marco Elver, Lukas Bulwahn)
 
 - Handle tail call optimization better in LKDTM (Douglas Anderson)
 
 - Use long form types in overflow.h (Andy Shevchenko)
 
 - Add flags param to string_get_size() (Andy Shevchenko)
 
 - Add Coccinelle script for potential struct_size() use (Jacob Keller)
 
 - Fix objtool corner case under KCFI (Josh Poimboeuf)
 
 - Drop 13 year old backward compat CAP_SYS_ADMIN check (Jingzi Meng)
 
 - Add str_plural() helper (Michal Wajdeczko, Kees Cook)
 
 - Ignore relocations in .notes section
 
 - Add comments to explain how __is_constexpr() works
 
 - Fix m68k stack alignment expectations in stackinit Kunit test
 
 - Convert string selftests to KUnit
 
 - Add KUnit tests for fortified string functions
 
 - Improve reporting during fortified string warnings
 
 - Allow non-type arg to type_max() and type_min()
 
 - Allow strscpy() to be called with only 2 arguments
 
 - Add binary mode to leaking_addresses scanner
 
 - Various small cleanups to leaking_addresses scanner
 
 - Adding wrapping_*() arithmetic helper
 
 - Annotate initial signed integer wrap-around in refcount_t
 
 - Add explicit UBSAN section to MAINTAINERS
 
 - Fix UBSAN self-test warnings
 
 - Simplify UBSAN build via removal of CONFIG_UBSAN_SANITIZE_ALL
 
 - Reintroduce UBSAN's signed overflow sanitizer
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Merge tag 'hardening-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull hardening updates from Kees Cook:
 "As is pretty normal for this tree, there are changes all over the
  place, especially for small fixes, selftest improvements, and improved
  macro usability.

  Some header changes ended up landing via this tree as they depended on
  the string header cleanups. Also, a notable set of changes is the work
  for the reintroduction of the UBSAN signed integer overflow sanitizer
  so that we can continue to make improvements on the compiler side to
  make this sanitizer a more viable future security hardening option.

  Summary:

   - string.h and related header cleanups (Tanzir Hasan, Andy
     Shevchenko)

   - VMCI memcpy() usage and struct_size() cleanups (Vasiliy Kovalev,
     Harshit Mogalapalli)

   - selftests/powerpc: Fix load_unaligned_zeropad build failure
     (Michael Ellerman)

   - hardened Kconfig fragment updates (Marco Elver, Lukas Bulwahn)

   - Handle tail call optimization better in LKDTM (Douglas Anderson)

   - Use long form types in overflow.h (Andy Shevchenko)

   - Add flags param to string_get_size() (Andy Shevchenko)

   - Add Coccinelle script for potential struct_size() use (Jacob
     Keller)

   - Fix objtool corner case under KCFI (Josh Poimboeuf)

   - Drop 13 year old backward compat CAP_SYS_ADMIN check (Jingzi Meng)

   - Add str_plural() helper (Michal Wajdeczko, Kees Cook)

   - Ignore relocations in .notes section

   - Add comments to explain how __is_constexpr() works

   - Fix m68k stack alignment expectations in stackinit Kunit test

   - Convert string selftests to KUnit

   - Add KUnit tests for fortified string functions

   - Improve reporting during fortified string warnings

   - Allow non-type arg to type_max() and type_min()

   - Allow strscpy() to be called with only 2 arguments

   - Add binary mode to leaking_addresses scanner

   - Various small cleanups to leaking_addresses scanner

   - Adding wrapping_*() arithmetic helper

   - Annotate initial signed integer wrap-around in refcount_t

   - Add explicit UBSAN section to MAINTAINERS

   - Fix UBSAN self-test warnings

   - Simplify UBSAN build via removal of CONFIG_UBSAN_SANITIZE_ALL

   - Reintroduce UBSAN's signed overflow sanitizer"

* tag 'hardening-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (51 commits)
  selftests/powerpc: Fix load_unaligned_zeropad build failure
  string: Convert helpers selftest to KUnit
  string: Convert selftest to KUnit
  sh: Fix build with CONFIG_UBSAN=y
  compiler.h: Explain how __is_constexpr() works
  overflow: Allow non-type arg to type_max() and type_min()
  VMCI: Fix possible memcpy() run-time warning in vmci_datagram_invoke_guest_handler()
  lib/string_helpers: Add flags param to string_get_size()
  x86, relocs: Ignore relocations in .notes section
  objtool: Fix UNWIND_HINT_{SAVE,RESTORE} across basic blocks
  overflow: Use POD in check_shl_overflow()
  lib: stackinit: Adjust target string to 8 bytes for m68k
  sparc: vdso: Disable UBSAN instrumentation
  kernel.h: Move lib/cmdline.c prototypes to string.h
  leaking_addresses: Provide mechanism to scan binary files
  leaking_addresses: Ignore input device status lines
  leaking_addresses: Use File::Temp for /tmp files
  MAINTAINERS: Update LEAKING_ADDRESSES details
  fortify: Improve buffer overflow reporting
  fortify: Add KUnit tests for runtime overflows
  ...
 2024-03-12 14:49:30 -07:00
Linus Torvalds
b32273ee89 execve updates for v6.9-rc1 
- Drop needless error path code in remove_arg_zero() (Li kunyu, Kees Cook)
 
 - binfmt_elf_efpic: Don't use missing interpreter's properties (Max Filippov)
 
 - Use /bin/bash for execveat selftests
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Merge tag 'execve-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve updates from Kees Cook:

 - Drop needless error path code in remove_arg_zero() (Li kunyu, Kees
   Cook)

 - binfmt_elf_efpic: Don't use missing interpreter's properties (Max
   Filippov)

 - Use /bin/bash for execveat selftests

* tag 'execve-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  exec: Simplify remove_arg_zero() error path
  selftests/exec: Perform script checks with /bin/bash
  exec: Delete unnecessary statements in remove_arg_zero()
  fs: binfmt_elf_efpic: don't use missing interpreter's properties
 2024-03-12 14:45:12 -07:00
Linus Torvalds
41cb8c332b pstore updates for v6.9-rc1 
- Make PSTORE_RAM available by default on arm64 (Nícolas F. R. A. Prado)
 
 - Allow for dynamic initialization in modular build (Guilherme G. Piccoli)
 
 - Add missing allocation failure check (Kunwu Chan)
 
 - Avoid duplicate memory zeroing (Christophe JAILLET)
 
 - Avoid potential double-free during pstorefs umount
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Merge tag 'pstore-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull pstore updates from Kees Cook:

 - Make PSTORE_RAM available by default on arm64 (Nícolas F R A Prado)

 - Allow for dynamic initialization in modular build (Guilherme G
   Piccoli)

 - Add missing allocation failure check (Kunwu Chan)

 - Avoid duplicate memory zeroing (Christophe JAILLET)

 - Avoid potential double-free during pstorefs umount

* tag 'pstore-v6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  pstore/zone: Don't clear memory twice
  pstore/zone: Add a null pointer check to the psz_kmsg_read
  efi: pstore: Allow dynamic initialization based on module parameter
  arm64: defconfig: Enable PSTORE_RAM
  pstore/ram: Register to module device table
  pstore: inode: Only d_invalidate() is needed
 2024-03-12 14:36:18 -07:00
Linus Torvalds
a01c9fe323 NFSD 6.9 Release Notes 
The bulk of the patches for this release are optimizations, code
 clean-ups, and minor bug fixes.
 
 One new feature to mention is that NFSD administrators now have the
 ability to revoke NFSv4 open and lock state. NFSD's NFSv3 support
 has had this capability for some time.
 
 As always I am grateful to NFSD contributors, reviewers, and
 testers.
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Merge tag 'nfsd-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "The bulk of the patches for this release are optimizations, code
  clean-ups, and minor bug fixes.

  One new feature to mention is that NFSD administrators now have the
  ability to revoke NFSv4 open and lock state. NFSD's NFSv3 support has
  had this capability for some time.

  As always I am grateful to NFSD contributors, reviewers, and testers"

* tag 'nfsd-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (75 commits)
  NFSD: Clean up nfsd4_encode_replay()
  NFSD: send OP_CB_RECALL_ANY to clients when number of delegations reaches its limit
  NFSD: Document nfsd_setattr() fill-attributes behavior
  nfsd: Fix NFSv3 atomicity bugs in nfsd_setattr()
  nfsd: Fix a regression in nfsd_setattr()
  NFSD: OP_CB_RECALL_ANY should recall both read and write delegations
  NFSD: handle GETATTR conflict with write delegation
  NFSD: add support for CB_GETATTR callback
  NFSD: Document the phases of CREATE_SESSION
  NFSD: Fix the NFSv4.1 CREATE_SESSION operation
  nfsd: clean up comments over nfs4_client definition
  svcrdma: Add Write chunk WRs to the RPC's Send WR chain
  svcrdma: Post WRs for Write chunks in svc_rdma_sendto()
  svcrdma: Post the Reply chunk and Send WR together
  svcrdma: Move write_info for Reply chunks into struct svc_rdma_send_ctxt
  svcrdma: Post Send WR chain
  svcrdma: Fix retry loop in svc_rdma_send()
  svcrdma: Prevent a UAF in svc_rdma_send()
  svcrdma: Fix SQ wake-ups
  svcrdma: Increase the per-transport rw_ctx count
  ...
 2024-03-12 14:27:37 -07:00
Linus Torvalds
f153fbe1ea Changes since last update: 
- Some folio conversions for compressed inodes;
 
  - Add compressed inode support over fscache;
 
  - Fix lockdep false positives of erofs_pseudo_mnt.
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Merge tag 'erofs-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "In this cycle, we introduce compressed inode support over fscache
  since a lot of native EROFS images are explicitly compressed so that
  EROFS over fscache can be more widely used even without Dragonfly
  Nydus [1].

  Apart from that, there are some folio conversions for compressed
  inodes available as well as a lockdep false positive fix.

  Summary:

   - Some folio conversions for compressed inodes;

   - Add compressed inode support over fscache;

   - Fix lockdep false positives of erofs_pseudo_mnt"

Link: https://nydus.dev [1]

* tag 'erofs-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: support compressed inodes over fscache
  erofs: make iov_iter describe target buffers over fscache
  erofs: fix lockdep false positives on initializing erofs_pseudo_mnt
  erofs: refine managed cache operations to folios
  erofs: convert z_erofs_submissionqueue_endio() to folios
  erofs: convert z_erofs_fill_bio_vec() to folios
  erofs: get rid of `justfound` debugging tag
  erofs: convert z_erofs_do_read_page() to folios
  erofs: convert z_erofs_onlinepage_.* to folios
 2024-03-12 13:25:53 -07:00
Linus Torvalds
d453cc5a27 fsverity updates for 6.9 
Slightly improve data verification performance by eliminating an
 unnecessary lock.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Pull fsverity update from Eric Biggers:
 "Slightly improve data verification performance by eliminating an
  unnecessary lock"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fsverity: remove hash page spin lock
 2024-03-12 13:22:10 -07:00
Linus Torvalds
3bf95d567d fscrypt updates for 6.9 
Fix flakiness in a test by releasing the quota synchronously when a key
 is removed, and other minor cleanups.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux

Pull fscrypt updates from Eric Biggers:
 "Fix flakiness in a test by releasing the quota synchronously when a
  key is removed, and other minor cleanups"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux:
  fscrypt: shrink the size of struct fscrypt_inode_info slightly
  fscrypt: write CBC-CTS instead of CTS-CBC
  fscrypt: clear keyring before calling key_put()
  fscrypt: explicitly require that inode->i_blkbits be set
 2024-03-12 13:17:36 -07:00
Linus Torvalds
cbcb9b5bc9 affs-for-6.9 
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Merge tag 'affs-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull affs update from David Sterba:
 "One change to AFFS that removes use of SLAB_MEM_SPREAD, which is going
  to be removed from MM code"

* tag 'affs-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  affs: remove SLAB_MEM_SPREAD flag usage
 2024-03-12 12:35:42 -07:00
Linus Torvalds
43a7548e28 for-6.9-tag 
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Merge tag 'for-6.9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Mostly stabilization, refactoring and cleanup changes. There rest are
  minor performance optimizations due to caching or lock contention
  reduction and a few notable fixes.

  Performance improvements:

   - minor speedup in logging when repeatedly allocated structure is
     preallocated only once, improves latency and decreases lock
     contention

   - minor throughput increase (+6%), reduced lock contention after
     clearing delayed allocation bits, applies to several common
     workload types

   - skip full quota rescan if a new relation is added in the same
     transaction

  Fixes:

   - zstd fix for inline compressed file in subpage mode, updated
     version from the 6.8 time

   - proper qgroup inheritance ioctl parameter validation

   - more fiemap followup fixes after reduced locking done in 6.8:
      - fix race when detecting delalloc ranges

  Core changes:

   - more debugging code:
      - added assertions for a very rare crash in raid56 calculation
      - tree-checker dumps page state to give more insights into
        possible reference counting issues

   - add checksum calculation offloading sysfs knob, for now enabled
     under DEBUG only to determine a good heuristic for deciding the
     offload or synchronous, depends on various factors (block group
     profile, device speed) and is not as clear as initially thought
     (checksum type)

   - error handling improvements, added assertions

   - more page to folio conversion (defrag, truncate), cached size and
     shift

   - preparation for more fine grained locking of sectors in subpage
     mode

   - cleanups and refactoring:
      - include cleanups, forward declarations
      - pointer-to-structure helpers
      - redundant argument removals
      - removed unused code
      - slab cache updates, last use of SLAB_MEM_SPREAD removed"

* tag 'for-6.9-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (114 commits)
  btrfs: reuse cloned extent buffer during fiemap to avoid re-allocations
  btrfs: fix race when detecting delalloc ranges during fiemap
  btrfs: fix off-by-one chunk length calculation at contains_pending_extent()
  btrfs: qgroup: allow quick inherit if snapshot is created and added to the same parent
  btrfs: qgroup: validate btrfs_qgroup_inherit parameter
  btrfs: include device major and minor numbers in the device scan notice
  btrfs: mark btrfs_put_caching_control() static
  btrfs: remove SLAB_MEM_SPREAD flag use
  btrfs: qgroup: always free reserved space for extent records
  btrfs: tree-checker: dump the page status if hit something wrong
  btrfs: compression: remove dead comments in btrfs_compress_heuristic()
  btrfs: subpage: make writer lock utilize bitmap
  btrfs: subpage: make reader lock utilize bitmap
  btrfs: unexport btrfs_subpage_start_writer() and btrfs_subpage_end_and_test_writer()
  btrfs: pass a valid extent map cache pointer to __get_extent_map()
  btrfs: merge btrfs_del_delalloc_inode() helpers
  btrfs: pass btrfs_device to btrfs_scratch_superblocks()
  btrfs: handle transaction commit errors in flush_reservations()
  btrfs: use KMEM_CACHE() to create btrfs_free_space cache
  btrfs: use KMEM_CACHE() to create delayed ref caches
  ...
 2024-03-12 12:28:34 -07:00
Linus Torvalds
35d4aeea10 zonefs changes for 6.9.0-rc1 
- A single change for this cycle to convert zonefs to use the new
    mount API.
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Merge tag 'zonefs-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs

Pull zonefs update from Damien Le Moal:

 - A single change for this cycle to convert zonefs to use the new
   mount API

* tag 'zonefs-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: convert zonefs to use the new mount api
 2024-03-12 12:24:40 -07:00
Linus Torvalds
65d287c7eb asm-generic updates for 6.9 
Just two small updates this time:
 
  - A series I did to unify the definition of PAGE_SIZE through Kconfig,
    intended to help with a vdso rework that needs the constant but
    cannot include the normal kernel headers when building the compat
    VDSO on arm64 and potentially others.
 
  - a patch from Yan Zhao to remove the pfn_to_virt() definitions from
    a couple of architectures after finding they were both incorrect
    and entirely unused.
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Merge tag 'asm-generic-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "Just two small updates this time:

   - A series I did to unify the definition of PAGE_SIZE through
     Kconfig, intended to help with a vdso rework that needs the
     constant but cannot include the normal kernel headers when building
     the compat VDSO on arm64 and potentially others

   - a patch from Yan Zhao to remove the pfn_to_virt() definitions from
     a couple of architectures after finding they were both incorrect
     and entirely unused"

* tag 'asm-generic-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  arch: define CONFIG_PAGE_SIZE_*KB on all architectures
  arch: simplify architecture specific page size configuration
  arch: consolidate existing CONFIG_PAGE_SIZE_*KB definitions
  mm: Remove broken pfn_to_virt() on arch csky/hexagon/openrisc
 2024-03-12 10:56:28 -07:00
Linus Torvalds
3efa10eb97 ARM defconfig updates for 6.9 
This has the usual updates to enable platform specific driver modules
 as new hardware gets supported, as well as an update to the virt.config
 fragment so we disable all newly added platforms again.
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Merge tag 'soc-defconfig-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM defconfig updates from Arnd Bergmann:
 "This has the usual updates to enable platform specific driver modules
  as new hardware gets supported, as well as an update to the
  virt.config fragment so we disable all newly added platforms again"

* tag 'soc-defconfig-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
  arm64: defconfig: Enable support for cbmem entries in the coreboot table
  ARM: defconfig: enable STMicroelectronics accelerometer and gyro for Exynos
  arm64: defconfig: drop ext2 filesystem and redundant ext3
  arm64: defconfig: Enable Rockchip HDMI/eDP Combo PHY
  arm64: defconfig: Enable Wave5 Video Encoder/Decoder
  arm64: config: disable new platforms in virt.config
  arm64: defconfig: Enable QCOM PBS
  arm64: deconfig: enable Goodix Berlin SPI touchscreen driver as module
  arm64: defconfig: Enable X1E80100 multimedia clock controllers configs
  arm64: defconfig: Enable GCC and interconnect for QDU1000/QRU1000
  arm64: defconfig: enable i.MX8MP ldb bridge
  arm64: defconfig: enable the vf610 gpio driver
  ARM: imx_v6_v7_defconfig: enable the vf610 gpio driver
  ARM: multi_v7_defconfig: Add more TI Keystone support
  arm64: defconfig: enable WCD939x USBSS driver as module
  arm64: defconfig: enable audio drivers for SM8650 QRD board
  arm64: defconfig: Enable Qualcomm interconnect providers
  ARM: multi_v7_defconfig: Enable BACKLIGHT_CLASS_DEVICE
  arm64: defconfig: Enable i.MX8QXP device drivers
  ARM: multi_v7_defconfig: Add more TI Keystone support
  ...
 2024-03-12 10:52:18 -07:00
Linus Torvalds
a60816720d ARM: SoC code updates for 6.9 
These are mostly minor updates, including a number of kerneldoc
 fixes from Randy Dunlap across multiple platforms. OMAP gets
 a few bugfixes, and the MAINTAINERS file gets updated for AMD
 Zynq and NXP S32G.
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Merge tag 'soc-arm-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC code updates from Arnd Bergmann:
 "These are mostly minor updates, including a number of kerneldoc fixes
  from Randy Dunlap across multiple platforms. OMAP gets a few bugfixes,
  and the MAINTAINERS file gets updated for AMD Zynq and NXP S32G"

* tag 'soc-arm-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (23 commits)
  ARM: s32c: update MAINTAINERS entry
  ARM: AM33xx: PRM: Implement REBOOT_COLD
  ARM: AM33xx: PRM: Remove redundand defines
  ARM: omap1: remove duplicated 'select ARCH_OMAP'
  ARM: s3c64xx: make bus_type const
  ARM: imx: Remove usage of the deprecated ida_simple_xx() API
  ARM: OMAP2+: fix kernel-doc warnings
  ARM: OMAP2+: fix kernel-doc warnings
  ARM: OMAP2+: fix a kernel-doc warning
  ARM: OMAP2+: PRM: fix kernel-doc warnings
  ARM: OMAP2+: prm44xx: fix a kernel-doc warning
  ARM: OMAP2+: pmic-cpcap: fix kernel-doc warnings
  ARM: OMAP2+: hwmod: fix kernel-doc warnings
  ARM: OMAP2+: hwmod: remove misuse of kernel-doc
  ARM: OMAP2+: CMINST: use matching function name in kernel-doc
  ARM: OMAP2+: cm33xx: use matching function name in kernel-doc
  ARM: OMAP2+: clock: fix a function name in kernel-doc
  ARM: OMAP2+: clockdomain: fix kernel-doc warnings
  ARM: OMAP2+: am33xx-restart: fix function name in kernel-doc
  soc: xilinx: update maintainer of event manager driver
  ...
 2024-03-12 10:47:33 -07:00
Linus Torvalds
2184dbcde4 ARM: SoC drivers for 6.9 
This is the usual mix of updates for drivers that are used on (mostly
 ARM) SoCs with no other top-level subsystem tree, including:
 
  - The SCMI firmware subsystem gains support for version 3.2 of the
    specification and updates to the notification code.
 
  - Feature updates for Tegra and Qualcomm platforms for added
    hardware support.
 
  - A number of platforms get soc_device additions for identifying newly
    added chips from Renesas, Qualcomm, Mediatek and Google.
 
  - Trivial improvements for firmware and memory drivers amongst
    others, in particular 'const' annotations throughout multiple
    subsystems.
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Merge tag 'soc-drivers-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "This is the usual mix of updates for drivers that are used on (mostly
  ARM) SoCs with no other top-level subsystem tree, including:

   - The SCMI firmware subsystem gains support for version 3.2 of the
     specification and updates to the notification code

   - Feature updates for Tegra and Qualcomm platforms for added hardware
     support

   - A number of platforms get soc_device additions for identifying
     newly added chips from Renesas, Qualcomm, Mediatek and Google

   - Trivial improvements for firmware and memory drivers amongst
     others, in particular 'const' annotations throughout multiple
     subsystems"

* tag 'soc-drivers-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (96 commits)
  tee: make tee_bus_type const
  soc: qcom: aoss: add missing kerneldoc for qmp members
  soc: qcom: geni-se: drop unused kerneldoc struct geni_wrapper param
  soc: qcom: spm: fix building with CONFIG_REGULATOR=n
  bus: ti-sysc: constify the struct device_type usage
  memory: stm32-fmc2-ebi: keep power domain on
  memory: stm32-fmc2-ebi: add MP25 RIF support
  memory: stm32-fmc2-ebi: add MP25 support
  memory: stm32-fmc2-ebi: check regmap_read return value
  dt-bindings: memory-controller: st,stm32: add MP25 support
  dt-bindings: bus: imx-weim: convert to YAML
  watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs
  soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs
  MAINTAINERS: Update SCMI entry with HWMON driver
  MAINTAINERS: samsung: gs101: match patches touching Google Tensor SoC
  memory: tegra: Fix indentation
  memory: tegra: Add BPMP and ICC info for DLA clients
  memory: tegra: Correct DLA client names
  dt-bindings: memory: renesas,rpc-if: Document R-Car V4M support
  firmware: arm_scmi: Update the supported clock protocol version
  ...
 2024-03-12 10:35:24 -07:00
Linus Torvalds
306bee64b7 SoC: device tree updates for 6.9 
There is very little going on with new SoC support this time, all the
 new chips are variations of others that we already support, and they
 are all based on ARMv8 cores:
 
  - Mediatek MT7981B (Filogic 820) and MT7988A (Filogic 880) are
    networking SoCs designed to be used in wireless routers, similar
    to the already supported MT7986A (Filogic 830).
 
  - NXP i.MX8DXP is a variant of i.MX8QXP, with two CPU cores less.
    These are used in many embedded and industrial applications.
 
  - Renesas R8A779G2 (R-Car V4H ES2.0) and R8A779H0 (R-Car V4M)
    are automotive SoCs.
 
  - TI J722S is another automotive variant of its K3 family,
    related to the AM62 series.
 
 There are a total of 7 new arm32 machines and 45 arm64 ones, including
 
  - Two Android phones based on the old Tegra30 chip
 
  - Two machines using Cortex-A53 SoCs from Allwinner, a mini PC and
    a SoM development board
 
  - A set-top box using Amlogic Meson G12A S905X2
 
  - Eight embedded board using NXP i.MX6/8/9
 
  - Three machines using Mediatek network router chips
 
  - Ten Chromebooks, all based on Mediatek MT8186
 
  - One development board based on Mediatek MT8395 (Genio 1200)
 
  - Seven tablets and phones based on Qualcomm SoCs, most of them
    from Samsung.
 
  - A third development board for Qualcomm SM8550 (Snapdragon 8 Gen 2)
 
  - Three variants of the "White Hawk" board for Renesas
    automotive SoCs
 
  - Ten Rockchips RK35xx based machines, including NAS, Tablet,
    Game console and industrial form factors.
 
  - Three evaluation boards for TI K3 based SoCs
 
 The other changes are mainly the usual feature additions for existing hardware,
 cleanups, and dtc compile time fixes. One notable change is the inclusion
 of PowerVR SGX GPU nodes on TI SoCs.
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Merge tag 'soc-dt-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC device tree updates from Arnd Bergmann:
 "There is very little going on with new SoC support this time, all the
  new chips are variations of others that we already support, and they
  are all based on ARMv8 cores:

   - Mediatek MT7981B (Filogic 820) and MT7988A (Filogic 880) are
     networking SoCs designed to be used in wireless routers, similar to
     the already supported MT7986A (Filogic 830).

   - NXP i.MX8DXP is a variant of i.MX8QXP, with two CPU cores less.
     These are used in many embedded and industrial applications.

   - Renesas R8A779G2 (R-Car V4H ES2.0) and R8A779H0 (R-Car V4M) are
     automotive SoCs.

   - TI J722S is another automotive variant of its K3 family, related to
     the AM62 series.

  There are a total of 7 new arm32 machines and 45 arm64 ones, including

   - Two Android phones based on the old Tegra30 chip

   - Two machines using Cortex-A53 SoCs from Allwinner, a mini PC and a
     SoM development board

   - A set-top box using Amlogic Meson G12A S905X2

   - Eight embedded board using NXP i.MX6/8/9

   - Three machines using Mediatek network router chips

   - Ten Chromebooks, all based on Mediatek MT8186

   - One development board based on Mediatek MT8395 (Genio 1200)

   - Seven tablets and phones based on Qualcomm SoCs, most of them from
     Samsung.

   - A third development board for Qualcomm SM8550 (Snapdragon 8 Gen 2)

   - Three variants of the "White Hawk" board for Renesas automotive
     SoCs

   - Ten Rockchips RK35xx based machines, including NAS, Tablet, Game
     console and industrial form factors.

   - Three evaluation boards for TI K3 based SoCs

  The other changes are mainly the usual feature additions for existing
  hardware, cleanups, and dtc compile time fixes. One notable change is
  the inclusion of PowerVR SGX GPU nodes on TI SoCs"

* tag 'soc-dt-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (824 commits)
  riscv: dts: Move BUILTIN_DTB_SOURCE to common Kconfig
  riscv: dts: starfive: jh7100: fix root clock names
  ARM: dts: samsung: exynos4412: decrease memory to account for unusable region
  arm64: dts: qcom: sm8250-xiaomi-elish: set rotation
  arm64: dts: qcom: sm8650: Fix SPMI channels size
  arm64: dts: qcom: sm8550: Fix SPMI channels size
  arm64: dts: rockchip: Fix name for UART pin header on qnap-ts433
  arm: dts: marvell: clearfog-gtr-l8: align port numbers with enclosure
  arm: dts: marvell: clearfog-gtr-l8: add support for second sfp connector
  dt-bindings: soc: renesas: renesas-soc: Add pattern for gray-hawk
  dtc: Enable dtc interrupt_provider check
  arm64: dts: st: add video encoder support to stm32mp255
  arm64: dts: st: add video decoder support to stm32mp255
  ARM: dts: stm32: enable crypto accelerator on stm32mp135f-dk
  ARM: dts: stm32: enable CRC on stm32mp135f-dk
  ARM: dts: stm32: add CRC on stm32mp131
  ARM: dts: add stm32f769-disco-mb1166-reva09
  ARM: dts: stm32: add display support on stm32f769-disco
  ARM: dts: stm32: rename mmc_vcard to vcc-3v3 on stm32f769-disco
  ARM: dts: stm32: add DSI support on stm32f769
  ...
 2024-03-12 10:29:57 -07:00
Linus Torvalds
508f34f238 m68k updates for v6.9 
- Make the Zorro bus type constant,
   - Defconfig updates.
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Merge tag 'm68k-for-v6.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Make the Zorro bus type constant

 - defconfig updates

* tag 'm68k-for-v6.9-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: defconfig: Update defconfigs for v6.8-rc1
  zorro: Make zorro_bus_type const
 2024-03-12 10:27:52 -07:00
Linus Torvalds
691632f0e8 s390 updates for 6.9 merge window 
- Various virtual vs physical address usage fixes
 
 - Fix error handling in Processor Activity Instrumentation device driver, and
   export number of counters with a sysfs file
 
 - Allow for multiple events when Processor Activity Instrumentation counters
   are monitored in system wide sampling
 
 - Change multiplier and shift values of the Time-of-Day clock source to improve
   steering precision
 
 - Remove a couple of unneeded GFP_DMA flags from allocations
 
 - Disable mmap alignment if randomize_va_space is also disabled, to avoid a too
   small heap
 
 - Various changes to allow s390 to be compiled with LLVM=1, since ld.lld and
   llvm-objcopy will have proper s390 support witch clang 19
 
 - Add __uninitialized macro to Compiler Attributes. This is helpful with s390's
   FPU code where some users have up to 520 byte stack frames. Clearing such
   stack frames (if INIT_STACK_ALL_PATTERN or INIT_STACK_ALL_ZERO is enabled)
   before they are used contradicts the intention (performance improvement) of
   such code sections.
 
 - Convert switch_to() to an out-of-line function, and use the generic switch_to
   header file
 
 - Replace the usage of s390's debug feature with pr_debug() calls within the
   zcrypt device driver
 
 - Improve hotplug support of the Adjunct Processor device driver
 
 - Improve retry handling in the zcrypt device driver
 
 - Various changes to the in-kernel FPU code:
 
   - Make in-kernel FPU sections preemptible
 
   - Convert various larger inline assemblies and assembler files to C, mainly
     by using singe instruction inline assemblies. This increases readability,
     but also allows makes it easier to add proper instrumentation hooks
 
   - Cleanup of the header files
 
 - Provide fast variants of csum_partial() and csum_partial_copy_nocheck() based
   on vector instructions
 
 - Introduce and use a lock to synchronize accesses to zpci device data
   structures to avoid inconsistent states caused by concurrent accesses
 
 - Compile the kernel without -fPIE. This addresses the following problems if
   the kernel is compiled with -fPIE:
 
   - It uses dynamic symbols (.dynsym), for which the linker refuses to allow
     more than 64k sections. This can break features which use
     '-ffunction-sections' and '-fdata-sections', including kpatch-build and
     function granular KASLR
 
   - It unnecessarily uses GOT relocations, adding an extra layer of indirection
     for many memory accesses
 
 - Fix shared_cpu_list for CPU private L2 caches, which incorrectly were
   reported as globally shared
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Merge tag 's390-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Various virtual vs physical address usage fixes

 - Fix error handling in Processor Activity Instrumentation device
   driver, and export number of counters with a sysfs file

 - Allow for multiple events when Processor Activity Instrumentation
   counters are monitored in system wide sampling

 - Change multiplier and shift values of the Time-of-Day clock source to
   improve steering precision

 - Remove a couple of unneeded GFP_DMA flags from allocations

 - Disable mmap alignment if randomize_va_space is also disabled, to
   avoid a too small heap

 - Various changes to allow s390 to be compiled with LLVM=1, since
   ld.lld and llvm-objcopy will have proper s390 support witch clang 19

 - Add __uninitialized macro to Compiler Attributes. This is helpful
   with s390's FPU code where some users have up to 520 byte stack
   frames. Clearing such stack frames (if INIT_STACK_ALL_PATTERN or
   INIT_STACK_ALL_ZERO is enabled) before they are used contradicts the
   intention (performance improvement) of such code sections.

 - Convert switch_to() to an out-of-line function, and use the generic
   switch_to header file

 - Replace the usage of s390's debug feature with pr_debug() calls
   within the zcrypt device driver

 - Improve hotplug support of the Adjunct Processor device driver

 - Improve retry handling in the zcrypt device driver

 - Various changes to the in-kernel FPU code:

     - Make in-kernel FPU sections preemptible

     - Convert various larger inline assemblies and assembler files to
       C, mainly by using singe instruction inline assemblies. This
       increases readability, but also allows makes it easier to add
       proper instrumentation hooks

     - Cleanup of the header files

 - Provide fast variants of csum_partial() and
   csum_partial_copy_nocheck() based on vector instructions

 - Introduce and use a lock to synchronize accesses to zpci device data
   structures to avoid inconsistent states caused by concurrent accesses

 - Compile the kernel without -fPIE. This addresses the following
   problems if the kernel is compiled with -fPIE:

     - It uses dynamic symbols (.dynsym), for which the linker refuses
       to allow more than 64k sections. This can break features which
       use '-ffunction-sections' and '-fdata-sections', including
       kpatch-build and function granular KASLR

     - It unnecessarily uses GOT relocations, adding an extra layer of
       indirection for many memory accesses

 - Fix shared_cpu_list for CPU private L2 caches, which incorrectly were
   reported as globally shared

* tag 's390-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (117 commits)
  s390/tools: handle rela R_390_GOTPCDBL/R_390_GOTOFF64
  s390/cache: prevent rebuild of shared_cpu_list
  s390/crypto: remove retry loop with sleep from PAES pkey invocation
  s390/pkey: improve pkey retry behavior
  s390/zcrypt: improve zcrypt retry behavior
  s390/zcrypt: introduce retries on in-kernel send CPRB functions
  s390/ap: introduce mutex to lock the AP bus scan
  s390/ap: rework ap_scan_bus() to return true on config change
  s390/ap: clarify AP scan bus related functions and variables
  s390/ap: rearm APQNs bindings complete completion
  s390/configs: increase number of LOCKDEP_BITS
  s390/vfio-ap: handle hardware checkstop state on queue reset operation
  s390/pai: change sampling event assignment for PMU device driver
  s390/boot: fix minor comment style damages
  s390/boot: do not check for zero-termination relocation entry
  s390/boot: make type of __vmlinux_relocs_64_start|end consistent
  s390/boot: sanitize kaslr_adjust_relocs() function prototype
  s390/boot: simplify GOT handling
  s390: vmlinux.lds.S: fix .got.plt assertion
  s390/boot: workaround current 'llvm-objdump -t -j ...' behavior
  ...
 2024-03-12 10:14:22 -07:00
Linus Torvalds
b29f377119 x86/boot changes for v6.9: 
- Continuing work by Ard Biesheuvel to improve the x86 early startup code,
    with the long-term goal to make it position independent:
 
       - Get rid of early accesses to global objects, either by moving them
         to the stack, deferring the access until later, or dropping the
         globals entirely.
 
       - Move all code that runs early via the 1:1 mapping into .head.text,
         and move code that does not out of it, so that build time checks can
         be added later to ensure that no inadvertent absolute references were
         emitted into code that does not tolerate them.
 
       - Remove fixup_pointer() and occurrences of __pa_symbol(), which rely
         on the compiler emitting absolute references, which is not guaranteed.
 
  - Improve the early console code.
 
  - Add early console message about ignored NMIs, so that users are at least
    warned about their existence - even if we cannot do anything about them.
 
  - Improve the kexec code's kernel load address handling.
 
  - Enable more X86S (simplified x86) bits.
 
  - Simplify early boot GDT handling
 
  - Micro-optimize the boot code a bit
 
  - Misc cleanups.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Ingo Molnar:

 - Continuing work by Ard Biesheuvel to improve the x86 early startup
   code, with the long-term goal to make it position independent:

      - Get rid of early accesses to global objects, either by moving
        them to the stack, deferring the access until later, or dropping
        the globals entirely

      - Move all code that runs early via the 1:1 mapping into
        .head.text, and move code that does not out of it, so that build
        time checks can be added later to ensure that no inadvertent
        absolute references were emitted into code that does not
        tolerate them

      - Remove fixup_pointer() and occurrences of __pa_symbol(), which
        rely on the compiler emitting absolute references, which is not
        guaranteed

 - Improve the early console code

 - Add early console message about ignored NMIs, so that users are at
   least warned about their existence - even if we cannot do anything
   about them

 - Improve the kexec code's kernel load address handling

 - Enable more X86S (simplified x86) bits

 - Simplify early boot GDT handling

 - Micro-optimize the boot code a bit

 - Misc cleanups

* tag 'x86-boot-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  x86/sev: Move early startup code into .head.text section
  x86/sme: Move early SME kernel encryption handling into .head.text
  x86/boot: Move mem_encrypt= parsing to the decompressor
  efi/libstub: Add generic support for parsing mem_encrypt=
  x86/startup_64: Simplify virtual switch on primary boot
  x86/startup_64: Simplify calculation of initial page table address
  x86/startup_64: Defer assignment of 5-level paging global variables
  x86/startup_64: Simplify CR4 handling in startup code
  x86/boot: Use 32-bit XOR to clear registers
  efi/x86: Set the PE/COFF header's NX compat flag unconditionally
  x86/boot/64: Load the final kernel GDT during early boot directly, remove startup_gdt[]
  x86/boot/64: Use RIP_REL_REF() to access early_top_pgt[]
  x86/boot/64: Use RIP_REL_REF() to access early page tables
  x86/boot/64: Use RIP_REL_REF() to access '__supported_pte_mask'
  x86/boot/64: Use RIP_REL_REF() to access early_dynamic_pgts[]
  x86/boot/64: Use RIP_REL_REF() to assign 'phys_base'
  x86/boot/64: Simplify global variable accesses in GDT/IDT programming
  x86/trampoline: Bypass compat mode in trampoline_start64() if not needed
  kexec: Allocate kernel above bzImage's pref_address
  x86/boot: Add a message about ignored early NMIs
  ...
 2024-03-12 09:58:57 -07:00
Linus Torvalds
e66c58f743 * Revert VERW fixed addressing patch 
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Merge tag 'x86-apic-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 APIC fixup from Dave Hansen:
 "Revert VERW fixed addressing patch.

  The reverted commit is not x86/apic material and was cruft left over
  from a merge.

  I believe the sequence of events went something like this:

   - The commit in question was added to x86/urgent

   - x86/urgent was merged into x86/apic to resolve a conflict

   - The commit was zapped from x86/urgent, but *not* from x86/apic

   - x86/apic got pullled (yesterday)

  I think we need to be a bit more vigilant when zapping things to make
  sure none of the other branches are depending on the zapped material"

* tag 'x86-apic-2024-03-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "x86/bugs: Use fixed addressing for VERW operand"
 2024-03-12 09:45:34 -07:00
Linus Torvalds
0e33cf955f * Mitigate RFDS vulnerability 
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Merge tag 'rfds-for-linus-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RFDS mitigation from Dave Hansen:
 "RFDS is a CPU vulnerability that may allow a malicious userspace to
  infer stale register values from kernel space. Kernel registers can
  have all kinds of secrets in them so the mitigation is basically to
  wait until the kernel is about to return to userspace and has user
  values in the registers. At that point there is little chance of
  kernel secrets ending up in the registers and the microarchitectural
  state can be cleared.

  This leverages some recent robustness fixes for the existing MDS
  vulnerability. Both MDS and RFDS use the VERW instruction for
  mitigation"

* tag 'rfds-for-linus-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM/x86: Export RFDS_NO and RFDS_CLEAR to guests
  x86/rfds: Mitigate Register File Data Sampling (RFDS)
  Documentation/hw-vuln: Add documentation for RFDS
  x86/mmio: Disable KVM mitigation when X86_FEATURE_CLEAR_CPU_BUF is set
 2024-03-12 09:31:39 -07:00
Dave Hansen
532a0c57d7 Revert "x86/bugs: Use fixed addressing for VERW operand" 
This was reverts commit 8009479ee9.

It was originally in x86/urgent, but was deemed wrong so got zapped.
But in the meantime, x86/urgent had been merged into x86/apic to
resolve a conflict.  I didn't notice the merge so didn't zap it
from x86/apic and it managed to make it up with the x86/apic
material.

The reverted commit is known to cause some KASAN problems.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
 2024-03-12 08:33:51 -07:00
Mikulas Patocka
65e8fbde64 dm: call the resume method on internal suspend 
There is this reported crash when experimenting with the lvm2 testsuite.
The list corruption is caused by the fact that the postsuspend and resume
methods were not paired correctly; there were two consecutive calls to the
origin_postsuspend function. The second call attempts to remove the
"hash_list" entry from a list, while it was already removed by the first
call.

Fix __dm_internal_resume so that it calls the preresume and resume
methods of the table's targets.

If a preresume method of some target fails, we are in a tricky situation.
We can't return an error because dm_internal_resume isn't supposed to
return errors. We can't return success, because then the "resume" and
"postsuspend" methods would not be paired correctly. So, we set the
DMF_SUSPENDED flag and we fake normal suspend - it may confuse userspace
tools, but it won't cause a kernel crash.

------------[ cut here ]------------
kernel BUG at lib/list_debug.c:56!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 8343 Comm: dmsetup Not tainted 6.8.0-rc6 #4
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
RIP: 0010:__list_del_entry_valid_or_report+0x77/0xc0
<snip>
RSP: 0018:ffff8881b831bcc0 EFLAGS: 00010282
RAX: 000000000000004e RBX: ffff888143b6eb80 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff819053d0 RDI: 00000000ffffffff
RBP: ffff8881b83a3400 R08: 00000000fffeffff R09: 0000000000000058
R10: 0000000000000000 R11: ffffffff81a24080 R12: 0000000000000001
R13: ffff88814538e000 R14: ffff888143bc6dc0 R15: ffffffffa02e4bb0
FS:  00000000f7c0f780(0000) GS:ffff8893f0a40000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000057fb5000 CR3: 0000000143474000 CR4: 00000000000006b0
Call Trace:
 <TASK>
 ? die+0x2d/0x80
 ? do_trap+0xeb/0xf0
 ? __list_del_entry_valid_or_report+0x77/0xc0
 ? do_error_trap+0x60/0x80
 ? __list_del_entry_valid_or_report+0x77/0xc0
 ? exc_invalid_op+0x49/0x60
 ? __list_del_entry_valid_or_report+0x77/0xc0
 ? asm_exc_invalid_op+0x16/0x20
 ? table_deps+0x1b0/0x1b0 [dm_mod]
 ? __list_del_entry_valid_or_report+0x77/0xc0
 origin_postsuspend+0x1a/0x50 [dm_snapshot]
 dm_table_postsuspend_targets+0x34/0x50 [dm_mod]
 dm_suspend+0xd8/0xf0 [dm_mod]
 dev_suspend+0x1f2/0x2f0 [dm_mod]
 ? table_deps+0x1b0/0x1b0 [dm_mod]
 ctl_ioctl+0x300/0x5f0 [dm_mod]
 dm_compat_ctl_ioctl+0x7/0x10 [dm_mod]
 __x64_compat_sys_ioctl+0x104/0x170
 do_syscall_64+0x184/0x1b0
 entry_SYSCALL_64_after_hwframe+0x46/0x4e
RIP: 0033:0xf7e6aead
<snip>
---[ end trace 0000000000000000 ]---

Fixes: ffcc393641 ("dm: enhance internal suspend and resume interface")
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
 2024-03-12 09:27:42 -04:00
Ming Lei
b25b8f4b8e dm raid: fix false positive for requeue needed during reshape 
An empty flush doesn't have a payload, so it should never be looked at
when considering to possibly requeue a bio for the case when a reshape
is in progress.

Fixes: 9dbd1aa3a8 ("dm raid: add reshaping support to the target")
Reported-by: Patrick Plenefisch <simonpatp@gmail.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
 2024-03-12 09:27:42 -04:00
Vlastimil Babka
1a1c4e4576 Merge branch 'slab/for-6.9/slab-flag-cleanups' into slab/for-linus 
Merge a series from myself that replaces hardcoded SLAB_ cache flag
values with an enum, and explicitly deprecates the SLAB_MEM_SPREAD flag
that is a no-op sine SLAB removal.
 2024-03-12 10:16:56 +01:00
Vlastimil Babka
466ed9eed6 Merge branch 'slab/for-6.9/optimize-get-freelist' into slab/for-linus 
Merge a series from Chengming Zhou that optimizes cpu freelist loading
when grabbing a cpu partial slab, and removes some unnecessary code.
 2024-03-12 10:13:02 +01:00
Ingo Molnar
2e2bc42c83 Merge branch 'linus' into x86/boot, to resolve conflict 
There's a new conflict with Linus's upstream tree, because
in the following merge conflict resolution in <asm/coco.h>:

  38b334fc76 Merge tag 'x86_sev_for_v6.9_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Linus has resolved the conflicting placement of 'cc_mask' better
than the original commit:

  1c811d403a x86/sev: Fix position dependent variable references in startup code

... which was also done by an internal merge resolution:

  2e5fc4786b Merge branch 'x86/sev' into x86/boot, to resolve conflicts and to pick up dependent tree

But Linus is right in 38b334fc76, the 'cc_mask' declaration is sufficient
within the #ifdef CONFIG_ARCH_HAS_CC_PLATFORM block.

So instead of forcing Linus to do the same resolution again, merge in Linus's
tree and follow his conflict resolution.

 Conflicts:
	arch/x86/include/asm/coco.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2024-03-12 09:55:57 +01:00
Jakub Kicinski
ed1f164038 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 
Merge in late fixes to prepare for the 6.9 net-next PR.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:38:36 -07:00
Jakub Kicinski
a318d3d54c Merge branch 'nexthop-fix-two-nexthop-group-statistics-issues' 
Ido Schimmel says:

====================
nexthop: Fix two nexthop group statistics issues

Fix two issues that were introduced as part of the recent nexthop group
statistics submission. See the commit messages for more details.
====================

Link: https://lore.kernel.org/r/20240311162307.545385-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:35:22 -07:00
Ido Schimmel
e006858f1a nexthop: Fix splat with CONFIG_DEBUG_PREEMPT=y 
Locally generated packets can increment the new nexthop statistics from
process context, resulting in the following splat [1] due to preemption
being enabled. Fix by using get_cpu_ptr() / put_cpu_ptr() which will
which take care of disabling / enabling preemption.

BUG: using smp_processor_id() in preemptible [00000000] code: ping/949
caller is nexthop_select_path+0xcf8/0x1e30
CPU: 12 PID: 949 Comm: ping Not tainted 6.8.0-rc7-custom-gcb450f605fae #11
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xbd/0xe0
 check_preemption_disabled+0xce/0xe0
 nexthop_select_path+0xcf8/0x1e30
 fib_select_multipath+0x865/0x18b0
 fib_select_path+0x311/0x1160
 ip_route_output_key_hash_rcu+0xe54/0x2720
 ip_route_output_key_hash+0x193/0x380
 ip_route_output_flow+0x25/0x130
 raw_sendmsg+0xbab/0x34a0
 inet_sendmsg+0xa2/0xe0
 __sys_sendto+0x2ad/0x430
 __x64_sys_sendto+0xe5/0x1c0
 do_syscall_64+0xc5/0x1d0
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
[...]

Fixes: f4676ea74b ("net: nexthop: Add nexthop group entry stats")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240311162307.545385-5-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:35:20 -07:00
Ido Schimmel
d8a21070b6 nexthop: Fix out-of-bounds access during attribute validation 
Passing a maximum attribute type to nlmsg_parse() that is larger than
the size of the passed policy will result in an out-of-bounds access [1]
when the attribute type is used as an index into the policy array.

Fix by setting the maximum attribute type according to the policy size,
as is already done for RTM_NEWNEXTHOP messages. Add a test case that
triggers the bug.

No regressions in fib nexthops tests:

 # ./fib_nexthops.sh
 [...]
 Tests passed: 236
 Tests failed:   0

[1]
BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x1e53/0x2940
Read of size 1 at addr ffffffff99ab4d20 by task ip/610

CPU: 3 PID: 610 Comm: ip Not tainted 6.8.0-rc7-custom-gd435d6e3e161 #9
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-1.fc38 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x8f/0xe0
 print_report+0xcf/0x670
 kasan_report+0xd8/0x110
 __nla_validate_parse+0x1e53/0x2940
 __nla_parse+0x40/0x50
 rtm_del_nexthop+0x1bd/0x400
 rtnetlink_rcv_msg+0x3cc/0xf20
 netlink_rcv_skb+0x170/0x440
 netlink_unicast+0x540/0x820
 netlink_sendmsg+0x8d3/0xdb0
 ____sys_sendmsg+0x31f/0xa60
 ___sys_sendmsg+0x13a/0x1e0
 __sys_sendmsg+0x11c/0x1f0
 do_syscall_64+0xc5/0x1d0
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
[...]

The buggy address belongs to the variable:
 rtm_nh_policy_del+0x20/0x40

Fixes: 2118f9390d ("net: nexthop: Adjust netlink policy parsing for a new attribute")
Reported-by: Eric Dumazet <edumazet@google.com>
Closes: https://lore.kernel.org/netdev/CANn89i+UNcG0PJMW5X7gOMunF38ryMh=L1aeZUKH3kL4UdUqag@mail.gmail.com/
Reported-by: syzbot+65bb09a7208ce3d4a633@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/00000000000088981b06133bc07b@google.com/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240311162307.545385-4-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:35:20 -07:00
Ido Schimmel
262a68aa46 nexthop: Only parse NHA_OP_FLAGS for dump messages that require it 
The attribute is parsed in __nh_valid_dump_req() which is called by the
dump handlers of RTM_GETNEXTHOP and RTM_GETNEXTHOPBUCKET although it is
only used by the former and rejected by the policy of the latter.

Move the parsing to nh_valid_dump_req() which is only called by the dump
handler of RTM_GETNEXTHOP.

This is a preparation for a subsequent patch.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240311162307.545385-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:35:20 -07:00
Ido Schimmel
dc5e0141ff nexthop: Only parse NHA_OP_FLAGS for get messages that require it 
The attribute is parsed into 'op_flags' in nh_valid_get_del_req() which
is called from the handlers of three message types: RTM_DELNEXTHOP,
RTM_GETNEXTHOPBUCKET and RTM_GETNEXTHOP. The attribute is only used by
the latter and rejected by the policies of the other two.

Pass 'op_flags' as NULL from the handlers of the other two and only
parse the attribute when the argument is not NULL.

This is a preparation for a subsequent patch.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20240311162307.545385-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-03-11 20:35:20 -07:00
Linus Torvalds
855684c7d9 * Fix sparse warning from TDX use of movdir64b() 
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Merge tag 'x86_tdx_for_6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 tdx update from Dave Hansen:

 - Fix sparse warning from TDX use of movdir64b()

* tag 'x86_tdx_for_6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/asm: Remove the __iomem annotation of movdir64b()'s dst argument
 2024-03-11 20:20:36 -07:00
Linus Torvalds
555b684190 * Add a warning when memory encryption conversions fail. These 
operations require VMM cooperation, even in CoCo environments
    where the VMM is untrusted.  While it's _possible_ that memory
    pressure could trigger the new warning, the odds are that a
    guest would only see this from an attacking VMM.
  * Simplify page fault code by re-enabling interrupts unconditionally
  * Avoid truncation issues when pfns are passed in to
    pfn_to_kaddr() with small (<64-bit) types.
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Merge tag 'x86_mm_for_6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Dave Hansen:

 - Add a warning when memory encryption conversions fail. These
   operations require VMM cooperation, even in CoCo environments where
   the VMM is untrusted. While it's _possible_ that memory pressure
   could trigger the new warning, the odds are that a guest would only
   see this from an attacking VMM.

 - Simplify page fault code by re-enabling interrupts unconditionally

 - Avoid truncation issues when pfns are passed in to pfn_to_kaddr()
   with small (<64-bit) types.

* tag 'x86_mm_for_6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/cpa: Warn for set_memory_XXcrypted() VMM fails
  x86/mm: Get rid of conditional IF flag handling in page fault path
  x86/mm: Ensure input to pfn_to_kaddr() is treated as a 64-bit type
 2024-03-11 20:07:52 -07:00
Linus Torvalds
685d982112 Core x86 changes for v6.9: 
- The biggest change is the rework of the percpu code,
   to support the 'Named Address Spaces' GCC feature,
   by Uros Bizjak:
 
    - This allows C code to access GS and FS segment relative
      memory via variables declared with such attributes,
      which allows the compiler to better optimize those accesses
      than the previous inline assembly code.
 
    - The series also includes a number of micro-optimizations
      for various percpu access methods, plus a number of
      cleanups of %gs accesses in assembly code.
 
    - These changes have been exposed to linux-next testing for
      the last ~5 months, with no known regressions in this area.
 
 - Fix/clean up __switch_to()'s broken but accidentally
   working handling of FPU switching - which also generates
   better code.
 
 - Propagate more RIP-relative addressing in assembly code,
   to generate slightly better code.
 
 - Rework the CPU mitigations Kconfig space to be less idiosyncratic,
   to make it easier for distros to follow & maintain these options.
 
 - Rework the x86 idle code to cure RCU violations and
   to clean up the logic.
 
 - Clean up the vDSO Makefile logic.
 
 - Misc cleanups and fixes.
 
 [ Please note that there's a higher number of merge commits in
   this branch (three) than is usual in x86 topic trees. This happened
   due to the long testing lifecycle of the percpu changes that
   involved 3 merge windows, which generated a longer history
   and various interactions with other core x86 changes that we
   felt better about to carry in a single branch. ]
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-core-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull core x86 updates from Ingo Molnar:

 - The biggest change is the rework of the percpu code, to support the
   'Named Address Spaces' GCC feature, by Uros Bizjak:

      - This allows C code to access GS and FS segment relative memory
        via variables declared with such attributes, which allows the
        compiler to better optimize those accesses than the previous
        inline assembly code.

      - The series also includes a number of micro-optimizations for
        various percpu access methods, plus a number of cleanups of %gs
        accesses in assembly code.

      - These changes have been exposed to linux-next testing for the
        last ~5 months, with no known regressions in this area.

 - Fix/clean up __switch_to()'s broken but accidentally working handling
   of FPU switching - which also generates better code

 - Propagate more RIP-relative addressing in assembly code, to generate
   slightly better code

 - Rework the CPU mitigations Kconfig space to be less idiosyncratic, to
   make it easier for distros to follow & maintain these options

 - Rework the x86 idle code to cure RCU violations and to clean up the
   logic

 - Clean up the vDSO Makefile logic

 - Misc cleanups and fixes

* tag 'x86-core-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits)
  x86/idle: Select idle routine only once
  x86/idle: Let prefer_mwait_c1_over_halt() return bool
  x86/idle: Cleanup idle_setup()
  x86/idle: Clean up idle selection
  x86/idle: Sanitize X86_BUG_AMD_E400 handling
  sched/idle: Conditionally handle tick broadcast in default_idle_call()
  x86: Increase brk randomness entropy for 64-bit systems
  x86/vdso: Move vDSO to mmap region
  x86/vdso/kbuild: Group non-standard build attributes and primary object file rules together
  x86/vdso: Fix rethunk patching for vdso-image-{32,64}.o
  x86/retpoline: Ensure default return thunk isn't used at runtime
  x86/vdso: Use CONFIG_COMPAT_32 to specify vdso32
  x86/vdso: Use $(addprefix ) instead of $(foreach )
  x86/vdso: Simplify obj-y addition
  x86/vdso: Consolidate targets and clean-files
  x86/bugs: Rename CONFIG_RETHUNK              => CONFIG_MITIGATION_RETHUNK
  x86/bugs: Rename CONFIG_CPU_SRSO             => CONFIG_MITIGATION_SRSO
  x86/bugs: Rename CONFIG_CPU_IBRS_ENTRY       => CONFIG_MITIGATION_IBRS_ENTRY
  x86/bugs: Rename CONFIG_CPU_UNRET_ENTRY      => CONFIG_MITIGATION_UNRET_ENTRY
  x86/bugs: Rename CONFIG_SLS                  => CONFIG_MITIGATION_SLS
  ...
 2024-03-11 19:53:15 -07:00
Linus Torvalds
fcc196579a Misc cleanups, including a large series from Thomas Gleixner to 
cure Sparse warnings.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cleanups-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Ingo Molnar:
 "Misc cleanups, including a large series from Thomas Gleixner to cure
  sparse warnings"

* tag 'x86-cleanups-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/nmi: Drop unused declaration of proc_nmi_enabled()
  x86/callthunks: Use EXPORT_PER_CPU_SYMBOL_GPL() for per CPU variables
  x86/cpu: Provide a declaration for itlb_multihit_kvm_mitigation
  x86/cpu: Use EXPORT_PER_CPU_SYMBOL_GPL() for x86_spec_ctrl_current
  x86/uaccess: Add missing __force to casts in __access_ok() and valid_user_address()
  x86/percpu: Cure per CPU madness on UP
  smp: Consolidate smp_prepare_boot_cpu()
  x86/msr: Add missing __percpu annotations
  x86/msr: Prepare for including <linux/percpu.h> into <asm/msr.h>
  perf/x86/amd/uncore: Fix __percpu annotation
  x86/nmi: Remove an unnecessary IS_ENABLED(CONFIG_SMP)
  x86/apm_32: Remove dead function apm_get_battery_status()
  x86/insn-eval: Fix function param name in get_eff_addr_sib()
 2024-03-11 19:37:56 -07:00