Commit Graph

1275515 Commits

Author SHA1 Message Date
Miquel Raynal
552c9380f9 Merge tag 'nand/for-6.10' into mtd/next
Raw NAND:

Two small fixes, one in the Hynix vendor code for properly returning an
error which might have been ignored and another in the Davinci driver to
properly synchronize the controller with the gpio domain.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2024-05-16 10:55:36 +02:00
Miquel Raynal
964b8998fd Merge tag 'spi-nor/for-6.10' into mtd/next
SPI NOR now uses div_u64() instead of div64_u64() in places where the
divisor is 32 bits. Many 32 bit architectures can optimize this variant
better than a full 64 bit divide.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2024-05-16 10:55:05 +02:00
Hangbin Liu
83e9394279 selftests/net/lib: no need to record ns name if it already exist
There is no need to add the name to ns_list again if the netns already
recoreded.

Fixes: 25ae948b44 ("selftests/net: add lib.sh")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-16 09:48:41 +01:00
Chris Lew
fd76e5ccc4 net: qrtr: ns: Fix module refcnt
The qrtr protocol core logic and the qrtr nameservice are combined into
a single module. Neither the core logic or nameservice provide much
functionality by themselves; combining the two into a single module also
prevents any possible issues that may stem from client modules loading
inbetween qrtr and the ns.

Creating a socket takes two references to the module that owns the
socket protocol. Since the ns needs to create the control socket, this
creates a scenario where there are always two references to the qrtr
module. This prevents the execution of 'rmmod' for qrtr.

To resolve this, forcefully put the module refcount for the socket
opened by the nameservice.

Fixes: a365023a76 ("net: qrtr: combine nameservice into main module")
Reported-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Tested-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-16 09:47:45 +01:00
Herve Codina
99975ad644 net: lan966x: remove debugfs directory in probe() error path
A debugfs directory entry is create early during probe(). This entry is
not removed on error path leading to some "already present" issues in
case of EPROBE_DEFER.

Create this entry later in the probe() code to avoid the need to change
many 'return' in 'goto' and add the removal in the already present error
path.

Fixes: 9428148401 ("net: lan966x: Add VCAP debugFS support")
Cc: <stable@vger.kernel.org>
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-16 09:46:07 +01:00
Arunpravin Paneer Selvam
431c590c3a drm/tests: Add a unit test for range bias allocation
Allocate cleared blocks in the bias range when the DRM
buddy's clear avail is zero. This will validate the bias
range allocation in scenarios like system boot when no
cleared blocks are available and exercise the fallback
path too. The resulting blocks should always be dirty.

v1:(Matthew)
  - move the size to the variable declaration section.
  - move the mm.clear_avail init to allocator init.

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514145636.16253-2-Arunpravin.PaneerSelvam@amd.com
2024-05-16 12:50:14 +10:00
Arunpravin Paneer Selvam
bb21700baf drm/buddy: Fix the range bias clear memory allocation issue
Problem statement: During the system boot time, an application request
for the bulk volume of cleared range bias memory when the clear_avail
is zero, we dont fallback into normal allocation method as we had an
unnecessary clear_avail check which prevents the fallback method leads
to fb allocation failure following system goes into unresponsive state.

Solution: Remove the unnecessary clear_avail check in the range bias
allocation function.

v2: add a kunit for this corner case (Daniel Vetter)

Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Fixes: 96950929eb ("drm/buddy: Implement tracking clear page feature")
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240514145636.16253-1-Arunpravin.PaneerSelvam@amd.com
2024-05-16 12:50:04 +10:00
Linus Torvalds
3c999d1ae3 Merge tag 'wq-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:

 - Work items can now be disabled and enabled, and cancel_work_sync()
   and disable_work() can be called form atomic contexts for BH work
   items.

   This closes feature gap with tasklet and should allow converting all
   existing tasklet users to BH workqueues.

 - Improve pool sharing for unbound workqueues with strict affinity.

 - Misc changes including doc updates, improved debug annotations and
   cleanups.

* tag 'wq-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: Use "@..." in function comment to describe variable length argument
  workqueue: Add destroy_work_on_stack() in workqueue_softirq_dead()
  workqueue: remove unnecessary import and function in wq_monitor.py
  workqueue: Introduce enable_and_queue_work() convenience function
  workqueue: add function in event of workqueue_activate_work
  workqueue: Cleanup subsys attribute registration
  workqueue: Use list_last_entry() to get the last idle worker
  workqueue: Move attrs->cpumask out of worker_pool's properties when attrs->affn_strict
  workqueue: Use INIT_WORK_ONSTACK in workqueue_softirq_dead()
  workqueue: Allow cancel_work_sync() and disable_work() from atomic contexts on BH work items
  workqueue: Remember whether a work item was on a BH workqueue
  workqueue: Remove WORK_OFFQ_CANCELING
  workqueue: Implement disable/enable for (delayed) work items
  workqueue: Preserve OFFQ bits in cancel[_sync] paths
2024-05-15 17:32:08 -07:00
Linus Torvalds
de6fef50ea Merge tag 'cgroup-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:

 - The locking around cpuset hotplug processing has always been a bit of
   mess which was worked around by making hotplug processing
   asynchronous. The asynchronity isn't great and led to other issues.

   We tried to make the behavior synchronous a while ago but that led to
   lockdep splats. Waiman took another stab at cleaning up and making it
   synchronous. The patch has been in -next for well over a month and
   there haven't been any complaints, so fingers crossed.

 - Tracepoints added to help understanding rstat lock contentions.

 - A bunch of minor changes - doc updates, code cleanups and selftests.

* tag 'cgroup-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (24 commits)
  cgroup/rstat: add cgroup_rstat_cpu_lock helpers and tracepoints
  selftests/cgroup: Drop define _GNU_SOURCE
  docs: cgroup-v1: Update page cache removal functions
  selftests/cgroup: fix uninitialized variables in test_zswap.c
  selftests/cgroup: cpu_hogger init: use {} instead of {NULL}
  selftests/cgroup: fix clang warnings: uninitialized fd variable
  selftests/cgroup: fix clang build failures for abs() calls
  cgroup/cpuset: Remove outdated comment in sched_partition_write()
  cgroup/cpuset: Fix incorrect top_cpuset flags
  cgroup/cpuset: Avoid clearing CS_SCHED_LOAD_BALANCE twice
  cgroup/cpuset: Statically initialize more members of top_cpuset
  cgroup: Avoid unnecessary looping in cgroup_no_v1()
  cgroup, legacy_freezer: update comment for freezer_css_offline()
  docs, cgroup: add entries for pids to cgroup-v2.rst
  cgroup: don't call cgroup1_pidlist_destroy_all() for v2
  cgroup_freezer: update comment for freezer_css_online()
  cgroup/rstat: desc member cgrp in cgroup_rstat_flush_release
  cgroup/rstat: add cgroup_rstat_lock helpers and tracepoints
  cgroup/pids: Remove superfluous zeroing
  docs: cgroup-v1: Fix description for css_online
  ...
2024-05-15 17:06:08 -07:00
Stephen Brennan
1a7d0890dd kprobe/ftrace: bail out if ftrace was killed
If an error happens in ftrace, ftrace_kill() will prevent disarming
kprobes. Eventually, the ftrace_ops associated with the kprobes will be
freed, yet the kprobes will still be active, and when triggered, they
will use the freed memory, likely resulting in a page fault and panic.

This behavior can be reproduced quite easily, by creating a kprobe and
then triggering a ftrace_kill(). For simplicity, we can simulate an
ftrace error with a kernel module like [1]:

[1]: https://github.com/brenns10/kernel_stuff/tree/master/ftrace_killer

  sudo perf probe --add commit_creds
  sudo perf trace -e probe:commit_creds
  # In another terminal
  make
  sudo insmod ftrace_killer.ko  # calls ftrace_kill(), simulating bug
  # Back to perf terminal
  # ctrl-c
  sudo perf probe --del commit_creds

After a short period, a page fault and panic would occur as the kprobe
continues to execute and uses the freed ftrace_ops. While ftrace_kill()
is supposed to be used only in extreme circumstances, it is invoked in
FTRACE_WARN_ON() and so there are many places where an unexpected bug
could be triggered, yet the system may continue operating, possibly
without the administrator noticing. If ftrace_kill() does not panic the
system, then we should do everything we can to continue operating,
rather than leave a ticking time bomb.

Link: https://lore.kernel.org/all/20240501162956.229427-1-stephen.s.brennan@oracle.com/

Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Acked-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2024-05-16 07:23:30 +09:00
Linus Torvalds
f4b0c4b508 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
 "ARM:

   - Move a lot of state that was previously stored on a per vcpu basis
     into a per-CPU area, because it is only pertinent to the host while
     the vcpu is loaded. This results in better state tracking, and a
     smaller vcpu structure.

   - Add full handling of the ERET/ERETAA/ERETAB instructions in nested
     virtualisation. The last two instructions also require emulating
     part of the pointer authentication extension. As a result, the trap
     handling of pointer authentication has been greatly simplified.

   - Turn the global (and not very scalable) LPI translation cache into
     a per-ITS, scalable cache, making non directly injected LPIs much
     cheaper to make visible to the vcpu.

   - A batch of pKVM patches, mostly fixes and cleanups, as the
     upstreaming process seems to be resuming. Fingers crossed!

   - Allocate PPIs and SGIs outside of the vcpu structure, allowing for
     smaller EL2 mapping and some flexibility in implementing more or
     less than 32 private IRQs.

   - Purge stale mpidr_data if a vcpu is created after the MPIDR map has
     been created.

   - Preserve vcpu-specific ID registers across a vcpu reset.

   - Various minor cleanups and improvements.

  LoongArch:

   - Add ParaVirt IPI support

   - Add software breakpoint support

   - Add mmio trace events support

  RISC-V:

   - Support guest breakpoints using ebreak

   - Introduce per-VCPU mp_state_lock and reset_cntx_lock

   - Virtualize SBI PMU snapshot and counter overflow interrupts

   - New selftests for SBI PMU and Guest ebreak

   - Some preparatory work for both TDX and SNP page fault handling.

     This also cleans up the page fault path, so that the priorities of
     various kinds of fauls (private page, no memory, write to read-only
     slot, etc.) are easier to follow.

  x86:

   - Minimize amount of time that shadow PTEs remain in the special
     REMOVED_SPTE state.

     This is a state where the mmu_lock is held for reading but
     concurrent accesses to the PTE have to spin; shortening its use
     allows other vCPUs to repopulate the zapped region while the zapper
     finishes tearing down the old, defunct page tables.

   - Advertise the max mappable GPA in the "guest MAXPHYADDR" CPUID
     field, which is defined by hardware but left for software use.

     This lets KVM communicate its inability to map GPAs that set bits
     51:48 on hosts without 5-level nested page tables. Guest firmware
     is expected to use the information when mapping BARs; this avoids
     that they end up at a legal, but unmappable, GPA.

   - Fixed a bug where KVM would not reject accesses to MSR that aren't
     supposed to exist given the vCPU model and/or KVM configuration.

   - As usual, a bunch of code cleanups.

  x86 (AMD):

   - Implement a new and improved API to initialize SEV and SEV-ES VMs,
     which will also be extendable to SEV-SNP.

     The new API specifies the desired encryption in KVM_CREATE_VM and
     then separately initializes the VM. The new API also allows
     customizing the desired set of VMSA features; the features affect
     the measurement of the VM's initial state, and therefore enabling
     them cannot be done tout court by the hypervisor.

     While at it, the new API includes two bugfixes that couldn't be
     applied to the old one without a flag day in userspace or without
     affecting the initial measurement. When a SEV-ES VM is created with
     the new VM type, KVM_GET_REGS/KVM_SET_REGS and friends are rejected
     once the VMSA has been encrypted. Also, the FPU and AVX state will
     be synchronized and encrypted too.

   - Support for GHCB version 2 as applicable to SEV-ES guests.

     This, once more, is only accessible when using the new
     KVM_SEV_INIT2 flow for initialization of SEV-ES VMs.

  x86 (Intel):

   - An initial bunch of prerequisite patches for Intel TDX were merged.

     They generally don't do anything interesting. The only somewhat
     user visible change is a new debugging mode that checks that KVM's
     MMU never triggers a #VE virtualization exception in the guest.

   - Clear vmcs.EXIT_QUALIFICATION when synthesizing an EPT Misconfig
     VM-Exit to L1, as per the SDM.

  Generic:

   - Use vfree() instead of kvfree() for allocations that always use
     vcalloc() or __vcalloc().

   - Remove .change_pte() MMU notifier - the changes to non-KVM code are
     small and Andrew Morton asked that I also take those through the
     KVM tree.

     The callback was only ever implemented by KVM (which was also the
     original user of MMU notifiers) but it had been nonfunctional ever
     since calls to set_pte_at_notify were wrapped with
     invalidate_range_start and invalidate_range_end... in 2012.

  Selftests:

   - Enhance the demand paging test to allow for better reporting and
     stressing of UFFD performance.

   - Convert the steal time test to generate TAP-friendly output.

   - Fix a flaky false positive in the xen_shinfo_test due to comparing
     elapsed time across two different clock domains.

   - Skip the MONITOR/MWAIT test if the host doesn't actually support
     MWAIT.

   - Avoid unnecessary use of "sudo" in the NX hugepage test wrapper
     shell script, to play nice with running in a minimal userspace
     environment.

   - Allow skipping the RSEQ test's sanity check that the vCPU was able
     to complete a reasonable number of KVM_RUNs, as the assert can fail
     on a completely valid setup.

     If the test is run on a large-ish system that is otherwise idle,
     and the test isn't affined to a low-ish number of CPUs, the vCPU
     task can be repeatedly migrated to CPUs that are in deep sleep
     states, which results in the vCPU having very little net runtime
     before the next migration due to high wakeup latencies.

   - Define _GNU_SOURCE for all selftests to fix a warning that was
     introduced by a change to kselftest_harness.h late in the 6.9
     cycle, and because forcing every test to #define _GNU_SOURCE is
     painful.

   - Provide a global pseudo-RNG instance for all tests, so that library
     code can generate random, but determinstic numbers.

   - Use the global pRNG to randomly force emulation of select writes
     from guest code on x86, e.g. to help validate KVM's emulation of
     locked accesses.

   - Allocate and initialize x86's GDT, IDT, TSS, segments, and default
     exception handlers at VM creation, instead of forcing tests to
     manually trigger the related setup.

  Documentation:

   - Fix a goof in the KVM_CREATE_GUEST_MEMFD documentation"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (225 commits)
  selftests/kvm: remove dead file
  KVM: selftests: arm64: Test vCPU-scoped feature ID registers
  KVM: selftests: arm64: Test that feature ID regs survive a reset
  KVM: selftests: arm64: Store expected register value in set_id_regs
  KVM: selftests: arm64: Rename helper in set_id_regs to imply VM scope
  KVM: arm64: Only reset vCPU-scoped feature ID regs once
  KVM: arm64: Reset VM feature ID regs from kvm_reset_sys_regs()
  KVM: arm64: Rename is_id_reg() to imply VM scope
  KVM: arm64: Destroy mpidr_data for 'late' vCPU creation
  KVM: arm64: Use hVHE in pKVM by default on CPUs with VHE support
  KVM: arm64: Fix hvhe/nvhe early alias parsing
  KVM: SEV: Allow per-guest configuration of GHCB protocol version
  KVM: SEV: Add GHCB handling for termination requests
  KVM: SEV: Add GHCB handling for Hypervisor Feature Support requests
  KVM: SEV: Add support to handle AP reset MSR protocol
  KVM: x86: Explicitly zero kvm_caps during vendor module load
  KVM: x86: Fully re-initialize supported_mce_cap on vendor module load
  KVM: x86: Fully re-initialize supported_vm_types on vendor module load
  KVM: x86/mmu: Sanity check that __kvm_faultin_pfn() doesn't create noslot pfns
  KVM: x86/mmu: Initialize kvm_page_fault's pfn and hva to error values
  ...
2024-05-15 14:46:43 -07:00
Tejun Heo
a2a58909cf Merge branch 'for-6.10' into test-merge-for-6.10 2024-05-15 11:40:33 -10:00
Linus Torvalds
2e9250022e Merge tag 'cxl-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL updates from Dave Jiang:

 - Three CXL mailbox passthrough commands are added to support the
   populating and clearing of vendor debug logs:
     - Get Log Capabilities
     - Get Supported Log Sub-List Commands
     - Clear Log

 - Add support of Device Phyiscal Address (DPA) to Host Physical Address
   (HPA) translation for CXL events of cxl_dram and cxl_general media.

   This allows user space to figure out which CXL region the event
   occured via trace event.

 - Connect CXL to CPER reporting.

   If a device is configured for firmware first, CXL event records are
   not sent directly to the host. Those records are reported through EFI
   Common Platform Error Records (CPER). Add support to route the CPER
   records through the CXL sub-system in order to provide DPA to HPA
   translation and also event decoding and tracing. This is useful for
   users to determine which system issues may correspond to specific
   hardware events.

 - A number of misc cleanups and fixes:
     - Fix for compile warning of cxl_security_ops
     - Add debug message for invalid interleave granularity
     - Enhancement to cxl-test event testing
     - Add dev_warn() on unsupported mixed mode decoder
     - Fix use of phys_to_target_node() for x86
     - Use helper function for decoder enum instead of open coding
     - Include missing headers for cxl-event
     - Fix MAINTAINERS file entry
     - Fix cxlr_pmem memory leak
     - Cleanup __cxl_parse_cfmws via scope-based resource menagement
     - Convert cxl_pmem_region_alloc() to scope-based resource management

* tag 'cxl-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (21 commits)
  cxl/cper: Remove duplicated GUID defines
  cxl/cper: Fix non-ACPI-APEI-GHES build
  cxl/pci: Process CPER events
  acpi/ghes: Process CXL Component Events
  cxl/region: Convert cxl_pmem_region_alloc to scope-based resource management
  cxl/acpi: Cleanup __cxl_parse_cfmws()
  cxl/region: Fix cxlr_pmem leaks
  cxl/core: Add region info to cxl_general_media and cxl_dram events
  cxl/region: Move cxl_trace_hpa() work to the region driver
  cxl/region: Move cxl_dpa_to_region() work to the region driver
  cxl/trace: Correct DPA field masks for general_media & dram events
  MAINTAINERS: repair file entry in COMPUTE EXPRESS LINK
  cxl/cxl-event: include missing <linux/types.h> and <linux/uuid.h>
  cxl/hdm: Debug, use decoder name function
  cxl: Fix use of phys_to_target_node() for x86
  cxl/hdm: dev_warn() on unsupported mixed mode decoder
  cxl/test: Enhance event testing
  cxl/hdm: Add debug message for invalid interleave granularity
  cxl: Fix compile warning for cxl_security_ops extern
  cxl/mbox: Add Clear Log mailbox command
  ...
2024-05-15 14:32:27 -07:00
Linus Torvalds
c405aa3ea3 Merge tag 'libnvdimm-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull nvdimm updates from Ira Weiny:
 "The changes include removing duplicate code and updating the nvdimm
  tree to the current kernel interfaces such as using const for struct
  device_type and changing the platform remove callback signature"

* tag 'libnvdimm-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: remove redundant assignment to variable rc
  ndtest: Convert to platform remove callback returning void
  nvdimm/btt: always set max_integrity_segments
  nvdimm: remove nd_integrity_init
  dax: constify the struct device_type usage
  powerpc/papr_scm: Move duplicate definitions to common header files
2024-05-15 14:28:56 -07:00
Linus Torvalds
a49468240e Merge tag 'modules-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules updates from Luis Chamberlain:
 "Finally something fun. Mike Rapoport does some cleanup to allow us to
  take out module_alloc() out of modules into a new paint shedded
  execmem_alloc() and execmem_free() so to make emphasis these helpers
  are actually used outside of modules.

  It starts with a non-functional changes API rename / placeholders to
  then allow architectures to define their requirements into a new shiny
  struct execmem_info with ranges, and requirements for those ranges.

  Archs now can intitialize this execmem_info as the last part of
  mm_core_init() if they have to diverge from the norm. Each range is a
  known type clearly articulated and spelled out in enum execmem_type.

  Although a lot of this is major cleanup and prep work for future
  enhancements an immediate clear gain is we get to enable KPROBES
  without MODULES now. That is ultimately what motiviated to pick this
  work up again, now with smaller goal as concrete stepping stone"

* tag 'modules-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
  bpf: remove CONFIG_BPF_JIT dependency on CONFIG_MODULES of
  kprobes: remove dependency on CONFIG_MODULES
  powerpc: use CONFIG_EXECMEM instead of CONFIG_MODULES where appropriate
  x86/ftrace: enable dynamic ftrace without CONFIG_MODULES
  arch: make execmem setup available regardless of CONFIG_MODULES
  powerpc: extend execmem_params for kprobes allocations
  arm64: extend execmem_info for generated code allocations
  riscv: extend execmem_params for generated code allocations
  mm/execmem, arch: convert remaining overrides of module_alloc to execmem
  mm/execmem, arch: convert simple overrides of module_alloc to execmem
  mm: introduce execmem_alloc() and execmem_free()
  module: make module_memory_{alloc,free} more self-contained
  sparc: simplify module_alloc()
  nios2: define virtual address space for modules
  mips: module: rename MODULE_START to MODULES_VADDR
  arm64: module: remove unneeded call to kasan_alloc_module_shadow()
  kallsyms: replace deprecated strncpy with strscpy
  module: allow UNUSED_KSYMS_WHITELIST to be relative against objtree.
2024-05-15 14:05:08 -07:00
Geert Uytterhoeven
eebadafc3b ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y
Booting an LPAE-enabled kernel built with CONFIG_CC_OPTIMIZE_FOR_SIZE=y
fails when starting userspace:

    Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004
    CPU: 1 PID: 1 Comm: init Tainted: G        W        N 6.9.0-rc1-koelsch-00004-g7af5b901e847 #1930
    Hardware name: Generic R-Car Gen2 (Flattened Device Tree)
    Call trace:
     unwind_backtrace from show_stack+0x10/0x14
     show_stack from dump_stack_lvl+0x78/0xa8
     dump_stack_lvl from panic+0x118/0x398
     panic from do_exit+0x1ec/0x938
     do_exit from sys_exit_group+0x0/0x10
    ---[ end Kernel panic - not syncing: Attempted to kill init!  exitcode=0x00000004 ]---

Add the missing memory clobber to cpu_set_ttbcr(), as suggested by
Russell King.

Force inlining of uaccess_save_and_enable(), as suggested by Ard
Biesheuvel.

The latter fixes booting on Koelsch.

Closes: https://lore.kernel.org/r/CAMuHMdWTAJcZ9BReWNhpmsgkOzQxLNb5OhNYxzxv6D5TSh2fwQ@mail.gmail.com/

Fixes: 7af5b901e8 ("ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement")
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2024-05-15 21:41:08 +01:00
Linus Torvalds
8c06da67d0 Merge tag 'livepatching-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
Pull livepatching update from Petr Mladek:

 - Use more informative names for the livepatch transition states

* tag 'livepatching-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
  livepatch: Rename KLP_* to KLP_TRANSITION_*
2024-05-15 13:07:49 -07:00
Linus Torvalds
a19264d086 Merge tag 'printk-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk updates from Petr Mladek:

 - Use no_printk() instead of "if (0) printk()" constructs to avoid
   generating printk index for messages disabled at compile time

 - Remove deprecated strncpy/strcpy from printk.c

 - Remove redundant CONFIG_BASE_FULL in favor of CONFIG_BASE_SMALL

* tag 'printk-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: cleanup deprecated uses of strncpy/strcpy
  printk: Remove redundant CONFIG_BASE_FULL
  printk: Change type of CONFIG_BASE_SMALL to bool
  printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled
  ceph: Use no_printk() helper
  dyndbg: Use *no_printk() helpers
  dev_printk: Add and use dev_no_printk()
  printk: Let no_printk() use _printk()
2024-05-15 12:34:46 -07:00
Linus Torvalds
1ab1bd2f6a Merge tag '6.10-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client updates from Steve French:

 - three important fixes to recent netfs conversion to fix various
   xfstest failures, and rmmod oops

 - cleanup patch to fix various GCC-14 warnings

* tag '6.10-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: fix perf regression with cached writes with netfs conversion
  cifs: Fix locking in cifs_strict_readv()
  cifs: Change from mempool_destroy to mempool_exit for request pools
  smb: smb2pdu.h: Avoid -Wflex-array-member-not-at-end warnings
2024-05-15 11:37:15 -07:00
Paolo Bonzini
cba23f333f selftests/kvm: remove dead file
This file was supposed to be removed in commit 2b7deea3ec ("Revert
"kvm: selftests: move base kvm_util.h declarations to kvm_util_base.h""),
but it survived.  Remove it now.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-05-15 13:40:16 -04:00
Linus Torvalds
33e02dc69a Merge tag 'sound-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
 "This one became bigger than usual, not in the total size but rather
  containing lots of small changes all over the places.

  The majority of changes are about ASoC, especially SOF / Intel stuff,
  and we see an interesting work for ASoC DAPM graph visualization,
  while there are many other code cleanup and refactoring, too.

  Core:
   - A deadlock fix at device disconnection
   - A new tool dapm-graph for visualising the DAPM state

  ASoC:
   - Large updates throughout the Intel audio drivers
   - Fixes and clarifications for the DAPM documentation
   - Cleanups of accessors for driver data, module labelling, and for
     constification
   - Modernsation and cleanup work in the Mediatek drivers
   - Several fixes and features for the DaVinci I2S driver
   - New drivers for several AMD and Intel platforms, Nuvoton NAU8325,
     Rockchip RK3308 and Texas Instruments PCM6240

  HD-audio:
   - Cleanup for CONFIG_PM dependencies
   - Cirrus HD-audio codec fixes and quirks

  Others:
   - Series of tree-wide fixes in Makefiles to use *-y
   - Additions of missing module descriptions
   - Scarlett2 USB mixer enhancements
   - A series of legacy emu10k1 fixes and improvements"

* tag 'sound-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (603 commits)
  ALSA: hda/realtek: Drop doubly quirk entry for 103c:8a2e
  ALSA: hda/realtek - fixed headset Mic not show
  ASoC: SOF: amd: Fix build error with built-in config
  ALSA: scarlett2: Increase mixer range to +12dB
  ALSA: scarlett2: Add S/PDIF source selection controls
  ALSA: core: Remove superfluous CONFIG_PM
  ALSA: Fix deadlocks with kctl removals at disconnection
  ASoC: audio-graph-card2: call of_node_get() before of_get_next_child()
  ASoC: SOF: amd: Correct spaces in Makefile
  ASoC: rt715-sdca-sdw: Fix wrong complete waiting in rt715_dev_resume()
  ASoC: Intel: sof_sdw_rt_amp: use dai parameter
  ASoC: Intel: sof_sdw: add dai parameter to rtd_init callback
  ASoC: Intel: sof_sdw: use .controls/.widgets to add controls/widgets
  ASoC: Intel: sof_sdw: add controls and dapm widgets in codec_info
  ASoC: Intel: sof_sdw: use generic name for controls/widgets
  ASoC: Intel: sof_sdw_cs_amp: rename Speakers to Speaker
  ASoC: Intel: maxim-common: change max98373 data to static
  ASoC: Intel: sof_sdw: add max98373 dapm routes
  ASoC: Intel: sof_rt5682: use max_98373_dai_link function
  ASoC: Intel: sof_nau8825: use max_98373_dai_link function
  ...
2024-05-15 10:02:36 -07:00
Linus Torvalds
d34672777d Merge tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
 "Code cleanups for offb, shmobile, sisfb, savage, au1200fb, uvesafb,
  omap2 and sh7760fb, as well as the addition of some HAS_IOPORT
  dependencies and adjustment of generated logo file to make build
  reproducible"

* tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: offb: replace of_node_put with __free(device_node)
  fbdev: savage: Handle err return when savagefb_check_var failed
  video: hdmi: prefer length specifier in format over string copying
  fbdev: uvesafb: replace deprecated strncpy with strscpy_pad
  fbdev: au1200fb: replace deprecated strncpy with strscpy
  fbdev: fsl-diu-fb: replace deprecated strncpy with strscpy_pad
  video: logo: Drop full path of the input filename in generated file
  fbdev: add HAS_IOPORT dependencies
  fbdev: sh7760fb: allow modular build
  fbdev: sisfb: hide unused variables
  fbdev: shmobile: fix snprintf truncation
  fbdev: omap2: replace of_graph_get_next_endpoint()
2024-05-15 09:53:06 -07:00
Linus Torvalds
db5d28c0bf Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
 "This is the main pull request for the drm subsystems for 6.10.

  In drivers the main thing is a new driver for ARM Mali firmware based
  GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and
  scattered changes to everything else.

  In the core a bunch of headers and Kconfig was refactored, along with
  the addition of a new panic handler which is meant to provide a user
  friendly message when a panic happens and graphical display is
  enabled.

  New drivers:
   - panthor: ARM Mali/Immortalis CSF-based GPU driver

  Core:
   - add a CONFIG_DRM_WERROR option
   - make more headers self-contained
   - grab resv lock in pin/unpin
   - fix vmap resv locking
   - EDID/eDP panel matching
   - Kconfig cleanups
   - DT sound bindings
   - Add SIZE_HINTS property for cursor planes
   - Add struct drm_edid_product_id and helpers.
   - Use drm device based logging in more drm functions.
   - drop seq_file.h from a bunch of places
   - use drm_edid driver conversions

  dp:
   - DP Tunnel documentation
   - MST read sideband cap
   - Adaptive sync SDP prep work

  ttm:
   - improve placement for TTM BOs in idle/busy handling

  panic:
   - Fixes for drm-panic, and option to test it.
   - Add drm panic to simpledrm, mgag200, imx, ast

  bridge:
   - improve init ordering
   - adv7511: allow GPIO pin sharing
   - tc358775: add tc358675 support

  panel:
   - AUO B120XAN01.0
   - Samsung s6e3fa7
   - BOE NT116WHM-N44
   - CMN N116BCA-EA1,
   - CrystalClear CMT430B19N00
   - Startek KD050HDFIA020-C020A
   - powertip PH128800T006-ZHC01
   - Innolux G121X1-L03
   - LG sw43408
   - Khadas TS050 V2
   - EDO RM69380 OLED
   - CSOT MNB601LS1-1

  amdgpu:
   - HDCP/ODM/RAS fixes
   - Devcoredump improvements
   - Expose VCN activity via sysfs
   - SMY 13.0.x updates
   - Enable fast updates on DCN 3.1.4
   - Add dclk and vclk reporting on additional devices
   - Add ACA RAS infrastructure
   - Implement TLB flush fence
   - EEPROM handling fixes
   - SMUIO 14.0.2 support
   - SMU 14.0.1 Updates
   - SMU 14.0.2 support
   - Sync page table freeing with TLB flushes
   - DML2 refactor
   - DC debug improvements
   - DCN 3.5.x Updates
   - GPU reset fixes
   - HDP fix for second GFX pipe on GC 10.x
   - Enable secondary GFX pipe on GC 10.3
   - Refactor and clean up BACO/BOCO/BAMACO handling
   - Remove invalid TTM resource start check
   - UAF fix in VA IOCTL
   - GPUVM page fault redirection to secondary IH rings for IH 6.x
   - Initial support for mapping kernel queues via MES
   - Fix VRAM memory accounting

  amdkfd:
   - MQD handling cleanup
   - Preemption handling fixes for XCDs
   - TLB flush fix for GC 9.4.2
   - Properly clean up workqueue during module unload
   - Fix memory leak process create failure
   - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
   - Fix eviction fence handling
   - Fix leak in GPU memory allocation failure case
   - DMABuf import handling fix
   - Enable SQ watchpoint for gfx10

  i915:
   - Adding new DG2 PCI ID
   - add context hints for GT frequency
   - enable only one CCS for compute workloads
   - new workarounds
   - Fix UAF on destroy against retire race and remove two earlier partial fixes
   - Limit the reserved VM space to only the platforms that need it
   - Fix gt reset with GuC submission is disable
   - Add and use gt_to_guc() wrapper

  i915/xe display:
   - Lunar Lake display enabling, including cdclk and other refactors
   - BIOS/VBT/opregion related refactor
   - Digital port related refactor/clean-up
   - Fix 2s boot time regression on DP panel replay init
   - Remove duplication on audio enable/disable on SDVO and g4x+ DP
   - Disable AuxCCS framebuffers if built for Xe
   - Make crtc disable more atomic
   - Increase DP idle pattern wait timeout to 2ms
   - Start using container_of_const() for some extra const safety
   - Fix Jasper Lake boot freeze
   - Enable MST mode for 128b/132b single-stream sideband
   - Enable Adaptive Sync SDP Support for DP
   - Fix MTL supported DP rates - removal of UHBR13.5
   - PLL refactoring
   - Limit eDP MSO pipe only for display version 20
   - More display refactor towards independence from i915 dev_priv
   - Convert i915/xe fbdev to DRM client
   - More initial work to make display code more independent from i915

  xe:
   - improved error capture
   - clean up some uAPI leftovers
   - devcoredump update
   - Add BMG mocs table
   - Handle GSCCS ER interrupt
   - Implement xe2- and GuC workarounds
   - struct xe_device cleanup
   - Hwmon updates
   - Add LRC parsing for more GPU instruction
   - Increase VM_BIND number of per-ioctl Ops
   - drm/xe: Add XE_BO_GGTT_INVALIDATE flag
   - Initial development for SR-IOV support
   - Add new PCI IDs to DG2 platform
   - Move userptr over to start using hmm_range_fault

  msm:
   - Switched to generating register header files during build process
     instead of shipping pre-generated headers
   - Merged DPU and MDP4 format databases.
   - DP:
     - Stop using compat string to distinguish DP and eDP cases
     - Added support for X Elite platform (X1E80100)
     - Reworked DP aux/audio support
     - Added SM6350 DP to the bindings
   - GPU:
     - a7xx perfcntr reg fixes
     - MAINTAINERS updates
     - a750 devcoredump support

  radeon:
   - Silence UBSAN warnings related to flexible arrays

  nouveau:
   - move some uAPI objects to uapi headers

  omapdrm:
   - console fix

  ast:
   - add i2c polling

  qaic:
   - add debugfs entries

  exynos:
   - fix platform_driver .owner
   - drop cleanup code

  mediatek:
   - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
   - Add GAMMA 12-bit LUT support for MT8188
   - Rename mtk_drm_* to mtk_*
   - Drop driver owner initialization
   - Correct calculation formula of PHY Timing"

* tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits)
  drm/xe/ads: Use flexible-array
  drm/xe: Use ordered WQ for G2H handler
  drm/msm/gen_header: allow skipping the validation
  drm/msm/a6xx: Cleanup indexed regs const'ness
  drm/msm: Add devcoredump support for a750
  drm/msm: Adjust a7xx GBIF debugbus dumping
  drm/msm: Update a6xx registers XML
  drm/msm: Fix imported a750 snapshot header for upstream
  drm/msm: Import a750 snapshot registers from kgsl
  MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver
  MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers
  drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails
  drm/msm/adreno: fix CP cycles stat retrieval on a7xx
  drm/msm/a7xx: allow writing to CP_BV counter selection registers
  drm: zynqmp_dpsub: Always register bridge
  Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"
  drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer()
  drm/fbdev-generic: Do not set physical framebuffer address
  drm/panthor: Fix the FW reset logic
  drm/panthor: Make sure we handle 'unknown group state' case properly
  ...
2024-05-15 09:43:42 -07:00
Andrii Nakryiko
2322113ac9 selftests/bpf: add more variations of map-in-map situations
Add test cases validating usage of PERCPU_ARRAY and PERCPU_HASH maps as
inner maps.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20240515062440.846086-2-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-15 09:34:54 -07:00
Andrii Nakryiko
9ee9822908 bpf: save extended inner map info for percpu array maps as well
ARRAY_OF_MAPS and HASH_OF_MAPS map types have special logic to save
a few extra fields required for correct operations of ARRAY maps, when
they are used as inner maps. PERCPU_ARRAY maps have similar
requirements as they now support generating inline element lookup
logic. So make sure that both classes of maps are handled correctly.

Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes: db69718b8e ("bpf: inline bpf_map_lookup_elem() for PERCPU_ARRAY maps")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20240515062440.846086-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-15 09:34:54 -07:00
Puranjay Mohan
325423cafc MAINTAINERS: Update ARM64 BPF JIT maintainer
Zi Shen Lim is not actively doing kernel development and has decided to
tranfer the responsibility of maintaining the JIT to me.

Add myself as the maintainer for BPF JIT for ARM64 and remove Zi Shen
Lim.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Acked-by: Zi Shen Lim <zlim.lnx@gmail.com>
Link: https://lore.kernel.org/r/20240514183914.27737-1-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-15 09:34:54 -07:00
Puranjay Mohan
7a8030057f bpf, docs: Fix the description of 'src' in ALU instructions
An ALU instruction's source operand can be the value in the source
register or the 32-bit immediate value encoded in the instruction. This
is controlled by the 's' bit of the 'opcode'.

The current description explicitly uses the phrase 'value of the source
register' when defining the meaning of 'src'.

Change the description to use 'source operand' in place of 'value of the
source register'.

Signed-off-by: Puranjay Mohan <puranjay@kernel.org>
Acked-by: Dave Thaler <dthaler1968@gmail.com>
Link: https://lore.kernel.org/r/20240514130303.113607-1-puranjay@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-15 09:34:54 -07:00
Andrii Nakryiko
1de27bba6d libbpf: fix feature detectors when using token_fd
Adjust `union bpf_attr` size passed to kernel in two feature-detecting
functions to take into account prog_token_fd field.

Libbpf is avoiding memset()'ing entire `union bpf_attr` by only using
minimal set of bpf_attr's fields. Two places have been missed when
wiring BPF token support in libbpf's feature detection logic.

Fix them trivially.

Fixes: f3dcee938f ("libbpf: Wire up token_fd into feature probing logic")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20240513180804.403775-1-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2024-05-15 09:34:53 -07:00
Linus Torvalds
46c6d2b186 Merge tag 'asymmetric-keys-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull asymmetric keys update from Jarkko Sakkinen:
 "Add a self-test testing PCKS#7 signed data against ECDSA key and
  couple of bug fixes for missing deps"

* tag 'asymmetric-keys-next-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  certs: Add ECDSA signature verification self-test
  certs: Move RSA self-test data to separate file
  KEYS: asymmetric: Add missing dependencies of FIPS_SIGNATURE_SELFTEST
  KEYS: asymmetric: Add missing dependency on CRYPTO_SIG
2024-05-15 09:22:34 -07:00
Linus Torvalds
353ad6c083 Merge tag 'integrity-v6.10' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity updates from Mimi Zohar:
 "Two IMA changes, one EVM change, a use after free bug fix, and a code
  cleanup to address "-Wflex-array-member-not-at-end" warnings:

   - The existing IMA {ascii, binary}_runtime_measurements lists include
     a hard coded SHA1 hash. To address this limitation, define per TPM
     enabled hash algorithm {ascii, binary}_runtime_measurements lists

   - Close an IMA integrity init_module syscall measurement gap by
     defining a new critical-data record

   - Enable (partial) EVM support on stacked filesystems (overlayfs).
     Only EVM portable & immutable file signatures are copied up, since
     they do not contain filesystem specific metadata"

* tag 'integrity-v6.10' of ssh://ra.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  ima: add crypto agility support for template-hash algorithm
  evm: Rename is_unsupported_fs to is_unsupported_hmac_fs
  fs: Rename SB_I_EVM_UNSUPPORTED to SB_I_EVM_HMAC_UNSUPPORTED
  evm: Enforce signatures on unsupported filesystem for EVM_INIT_X509
  ima: re-evaluate file integrity on file metadata change
  evm: Store and detect metadata inode attributes changes
  ima: Move file-change detection variables into new structure
  evm: Use the metadata inode to calculate metadata hash
  evm: Implement per signature type decision in security_inode_copy_up_xattr
  security: allow finer granularity in permitting copy-up of security xattrs
  ima: Rename backing_inode to real_inode
  integrity: Avoid -Wflex-array-member-not-at-end warnings
  ima: define an init_module critical data record
  ima: Fix use-after-free on a dentry's dname.name
2024-05-15 08:43:02 -07:00
Linus Torvalds
ccae19c623 Merge tag 'selinux-pr-20240513' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:

 - Attempt to pre-allocate the SELinux status page so it doesn't appear
   to userspace that we are skipping SELinux policy sequence numbers

 - Reject invalid SELinux policy bitmaps with an error at policy load
   time

 - Consistently use the same type, u32, for ebitmap offsets

 - Improve the "symhash" hash function for better distribution on common
   policies

 - Correct a number of printk format specifiers in the ebitmap code

 - Improved error checking in sel_write_load()

 - Ensure we have a proper return code in the
   filename_trans_read_helper_compat() function

 - Make better use of the current_sid() helper function

 - Allow for more hash table statistics when debugging is enabled

 - Migrate from printk_ratelimit() to pr_warn_ratelimited()

 - Miscellaneous cleanups and tweaks to selinux_lsm_getattr()

 - More consitification work in the conditional policy space

* tag 'selinux-pr-20240513' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
  selinux: constify source policy in cond_policydb_dup()
  selinux: avoid printk_ratelimit()
  selinux: pre-allocate the status page
  selinux: clarify return code in filename_trans_read_helper_compat()
  selinux: use u32 as bit position type in ebitmap code
  selinux: improve symtab string hashing
  selinux: dump statistics for more hash tables
  selinux: make more use of current_sid()
  selinux: update numeric format specifiers for ebitmaps
  selinux: improve error checking in sel_write_load()
  selinux: cleanup selinux_lsm_getattr()
  selinux: reject invalid ebitmaps
2024-05-15 08:36:30 -07:00
Linus Torvalds
4cd4e4b881 Merge tag 'lsm-pr-20240513' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm updates from Paul Moore:

 - The security/* portion of the effort to remove the empty sentinel
   elements at the end of the ctl_table arrays

 - Update the file list associated with the LSM / "SECURITY SUBSYSTEM"
   entry in the MAINTAINERS file (and then fix a typo in then update)

* tag 'lsm-pr-20240513' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
  MAINTAINERS: repair file entry in SECURITY SUBSYSTEM
  MAINTAINERS: update the LSM file list
  lsm: remove the now superfluous sentinel element from ctl_table array
2024-05-15 08:25:38 -07:00
Helge Deller
d4a5999101 parisc: Define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
Define the HAVE_ARCH_HUGETLB_UNMAPPED_AREA macro like other platforms do in
their page.h files to avoid this compile warning:
arch/parisc/mm/hugetlbpage.c:25:1: warning: no previous prototype for 'hugetlb_get_unmapped_area' [-Wmissing-prototypes]

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org  # 6.0+
Reported-by: John David Anglin <dave.anglin@bell.net>
Tested-by: John David Anglin <dave.anglin@bell.net>
2024-05-15 17:14:26 +02:00
Jakub Kicinski
621cde16e4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Cross merge.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-15 07:30:49 -07:00
Daniel Bristot de Oliveira
fb9e90a67e rtla/timerlat: Make user-space threads the default
After ther -u addition, most of the known users are setting it. And
it makes sense, as it adds more information, and inherits the default
setup for the threads - e.g., cgroups configs.

Thus, if the user-space interface is available, enable -u. Otherwise,
use the in-kernel thread.

Add the -k option to allow the user to request kernel-threads.

Link: https://lkml.kernel.org/r/9241d3089de4091b124f780ed832a0e6646cadaa.1713968967.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:57 +02:00
Daniel Bristot de Oliveira
cdbf71962b rtla: Add the --warm-up option
On many cases, the results right after the startup are different
from the rest of the execution, biasing the results. For example,
on osnoise, the scheduler might take some time to adapt to the new
busy-loop workload.

Add the --warm-up <seconds> option, adding a warm-up phase (in
seconds) where the workload is set, but the results are discarded.

Link: https://lkml.kernel.org/r/e682d5ce5af90f123bd13220f63d5c3d118a92be.1713968967.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:57 +02:00
Daniel Bristot de Oliveira
1462501c7a rtla/timerlat: Add a summary for hist mode
Like on rtla timerlat top, add an overall summary at the bottom
of timerlat hist. For instance:

  # timerlat hist -c 0-1 -d 10s -E 20
  # RTLA timerlat histogram
  # Time unit is microseconds (us)
  # Duration:   0 00:00:10
  Index   IRQ-000   Thr-000   IRQ-001   Thr-001
  6             1         0         0         0
  7             1         0         0         0
  8             1         0         1         0
  9             7         0         0         0
  10           16         0         0         0
  11            1         0         3         0
  15            0         0         3         0
  16            0         0        12         0
  17            0         0        28         0
  18            0         2        26         0
  19            1         1        80         1
  over:      9973      9998      9848     10000
  count:    10001     10001     10001     10001
  min:          6        18         8        19
  avg:        185       204        95       113
  max:        428       450       341       371
  ALL:        IRQ       Thr
  count:    20002     20002
  min:          6        18
  avg:        140       159
  max:        428       450

Link: https://lkml.kernel.org/r/a6bc06c798f72127edc57d1f99da8d57e1187cee.1713968967.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Suggested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:57 +02:00
Daniel Bristot de Oliveira
285dcb7665 rtla/timerlat: Add a summary for top mode
While the per-cpu values are the results to take into consideration, the
overall system values are also useful.

Add a summary at the bottom of rtla timerlat top showing the overall
results. For instance:

                                       Timer Latency
    0 00:00:10   |          IRQ Timer Latency (us)        |         Thread Timer Latency (us)
  CPU COUNT      |      cur       min       avg       max |      cur       min       avg       max
    0 #10003     |      113        19       150       441 |      134        35       170       459
    1 #10003     |       63         8        99       462 |       84        15       119       481
    2 #10003     |        3         2        89       396 |       21         8       108       414
    3 #10002     |      206        11       210       394 |      223        21       228       415
  ---------------|----------------------------------------|---------------------------------------
  ALL #40011  e0 |                  2       137       462 |                  8       156       481

Link: https://lkml.kernel.org/r/5eb510d6faeb4ce745e09395196752df75a2dd1a.1713968967.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Suggested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:57 +02:00
Daniel Bristot de Oliveira
f5c0cdad66 rtla/timerlat: Use pretty formatting only on interactive tty
timerlat top does some background/font color formatting. While useful
on terminal, it breaks the output on other formats. For example, when
piping the output for pastebin tools, the format strings are printed
as characters. For instance:

  [2;37;40m                                     Timer Latency                                              [0;0;0m
    0 00:00:01   |          IRQ Timer Latency (us)        |         Thread Timer Latency (us)
  [2;30;47mCPU COUNT      |      cur       min       avg       max |      cur       min       avg       max[0;0;0m
    0 #1013      |        1         0         1        54 |        5         2         4        57
    1 #1013      |        3         0         1        10 |        6         2         4        15

To avoid this problem, do the formatting only if running on a tty,
and in !quiet mode.

Link: https://lkml.kernel.org/r/8288e1544ceab21557d5dda93a0f00339497c649.1713968967.git.bristot@kernel.org

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:57 +02:00
Daniel Bristot de Oliveira
a40e5e4dd0 rtla/auto-analysis: Replace \t with spaces
When copying timerlat auto-analysis from a terminal to some web pages or
chats, the \t are being replaced with a single ' ' or '    ', breaking
the output.

For example:
  ## CPU 3 hit stop tracing, analyzing it ##
    IRQ handler delay:                        1.30 us (0.11 %)
    IRQ latency:           1.90 us
    Timerlat IRQ duration:         3.00 us (0.24 %)
    Blocking thread:       1223.16 us (99.00 %)
                     insync:4048         1223.16 us
    IRQ interference          4.93 us (0.40 %)
                local_timer:236        4.93 us
  ------------------------------------------------------------------------
     Thread latency:       1235.47 us (100%)

Replace \t with spaces to avoid this problem.

Link: https://lkml.kernel.org/r/ec7ed2b2809c22ab0dfc8eb7c805ab9cddc4254a.1713968967.git.bristot@kernel.org

Cc: stable@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Fixes: 27e348b221 ("rtla/timerlat: Add auto-analysis core")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:56 +02:00
Daniel Bristot de Oliveira
5f0769331a rtla/timerlat: Simplify "no value" printing on top
Instead of printing three times the same output, print it only once,
reducing lines and being sure that all no values have the same length.

It also fixes an extra '\n' when running the with kernel threads, like
here:

     =============== %< ==============
                                      Timer Latency

   0 00:00:01   |          IRQ Timer Latency (us)        |         Thread Timer Latency (us)
 CPU COUNT      |      cur       min       avg       max |      cur       min       avg       max
   2 #0         |        -         -         -         - |      161       161       161       161
   3 #0         |        -         -         -         - |      161       161       161       161
   8 #1         |       54        54        54        54 |        -         -         -         -'\n'

 ---------------|----------------------------------------|---------------------------------------
 ALL #1      e0 |                 54        54        54 |                161       161       161
     =============== %< ==============

This '\n' should have been removed with the user-space support that
added another '\n' if not running with kernel threads.

Link: https://lkml.kernel.org/r/0a4d8085e7cd706733a5dc10a81ca38b82bd4992.1713968967.git.bristot@kernel.org

Cc: stable@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Juri Lelli <juri.lelli@redhat.com>
Fixes: cdca4f4e5e ("rtla/timerlat_top: Add timerlat user-space support")
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
2024-05-15 15:13:56 +02:00
Ronald Wahl
317a215d49 net: ks8851: Fix another TX stall caused by wrong ISR flag handling
Under some circumstances it may happen that the ks8851 Ethernet driver
stops sending data.

Currently the interrupt handler resets the interrupt status flags in the
hardware after handling TX. With this approach we may lose interrupts in
the time window between handling the TX interrupt and resetting the TX
interrupt status bit.

When all of the three following conditions are true then transmitting
data stops:

  - TX queue is stopped to wait for room in the hardware TX buffer
  - no queued SKBs in the driver (txq) that wait for being written to hw
  - hardware TX buffer is empty and the last TX interrupt was lost

This is because reenabling the TX queue happens when handling the TX
interrupt status but if the TX status bit has already been cleared then
this interrupt will never come.

With this commit the interrupt status flags will be cleared before they
are handled. That way we stop losing interrupts.

The wrong handling of the ISR flags was there from the beginning but
with commit 3dc5d44545 ("net: ks8851: Fix TX stall caused by TX
buffer overrun") the issue becomes apparent.

Fixes: 3dc5d44545 ("net: ks8851: Fix TX stall caused by TX buffer overrun")
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Simon Horman <horms@kernel.org>
Cc: netdev@vger.kernel.org
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Ronald Wahl <ronald.wahl@raritan.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-15 11:44:13 +01:00
Nikolay Aleksandrov
3a7c1661ae net: bridge: mst: fix vlan use-after-free
syzbot reported a suspicious rcu usage[1] in bridge's mst code. While
fixing it I noticed that nothing prevents a vlan to be freed while
walking the list from the same path (br forward delay timer). Fix the rcu
usage and also make sure we are not accessing freed memory by making
br_mst_vlan_set_state use rcu read lock.

[1]
 WARNING: suspicious RCU usage
 6.9.0-rc6-syzkaller #0 Not tainted
 -----------------------------
 net/bridge/br_private.h:1599 suspicious rcu_dereference_protected() usage!
 ...
 stack backtrace:
 CPU: 1 PID: 8017 Comm: syz-executor.1 Not tainted 6.9.0-rc6-syzkaller #0
 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
 Call Trace:
  <IRQ>
  __dump_stack lib/dump_stack.c:88 [inline]
  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
  lockdep_rcu_suspicious+0x221/0x340 kernel/locking/lockdep.c:6712
  nbp_vlan_group net/bridge/br_private.h:1599 [inline]
  br_mst_set_state+0x1ea/0x650 net/bridge/br_mst.c:105
  br_set_state+0x28a/0x7b0 net/bridge/br_stp.c:47
  br_forward_delay_timer_expired+0x176/0x440 net/bridge/br_stp_timer.c:88
  call_timer_fn+0x18e/0x650 kernel/time/timer.c:1793
  expire_timers kernel/time/timer.c:1844 [inline]
  __run_timers kernel/time/timer.c:2418 [inline]
  __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2429
  run_timer_base kernel/time/timer.c:2438 [inline]
  run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2448
  __do_softirq+0x2c6/0x980 kernel/softirq.c:554
  invoke_softirq kernel/softirq.c:428 [inline]
  __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633
  irq_exit_rcu+0x9/0x30 kernel/softirq.c:645
  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
  sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
  </IRQ>
  <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
 RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
 Code: 2b 00 74 08 4c 89 f7 e8 ba d1 84 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
 RSP: 0018:ffffc90013657100 EFLAGS: 00000206
 RAX: 0000000000000001 RBX: 1ffff920026cae2c RCX: 0000000000000001
 RDX: dffffc0000000000 RSI: ffffffff8bcaca00 RDI: ffffffff8c1eaa60
 RBP: ffffc90013657260 R08: ffffffff92efe507 R09: 1ffffffff25dfca0
 R10: dffffc0000000000 R11: fffffbfff25dfca1 R12: 1ffff920026cae28
 R13: dffffc0000000000 R14: ffffc90013657160 R15: 0000000000000246

Fixes: ec7328b591 ("net: bridge: mst: Multiple Spanning Tree (MST) mode")
Reported-by: syzbot+fa04eb8a56fd923fc5d8@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=fa04eb8a56fd923fc5d8
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-15 11:43:16 +01:00
Nikolay Aleksandrov
06080ea230 selftests: net: bridge: increase IGMP/MLD exclude timeout membership interval
When running the bridge IGMP/MLD selftests on debug kernels we can get
spurious errors when setting up the IGMP/MLD exclude timeout tests
because the membership interval is just 3 seconds and the setup has 2
seconds of sleep plus various validations, the one second that is left
is not enough. Increase the membership interval from 3 to 5 seconds to
make room for the setup validation and 2 seconds of sleep.

Fixes: 34d7ecb3d4 ("selftests: net: bridge: update IGMP/MLD membership interval value")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-15 11:42:17 +01:00
Nikolay Aleksandrov
8bd67ebb50 net: bridge: xmit: make sure we have at least eth header len bytes
syzbot triggered an uninit value[1] error in bridge device's xmit path
by sending a short (less than ETH_HLEN bytes) skb. To fix it check if
we can actually pull that amount instead of assuming.

Tested with dropwatch:
 drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3)
 origin: software
 timestamp: Mon May 13 11:31:53 2024 778214037 nsec
 protocol: 0x88a8
 length: 2
 original length: 2
 drop reason: PKT_TOO_SMALL

[1]
BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65
 br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65
 __netdev_start_xmit include/linux/netdevice.h:4903 [inline]
 netdev_start_xmit include/linux/netdevice.h:4917 [inline]
 xmit_one net/core/dev.c:3531 [inline]
 dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547
 __dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 __bpf_tx_skb net/core/filter.c:2136 [inline]
 __bpf_redirect_common net/core/filter.c:2180 [inline]
 __bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187
 ____bpf_clone_redirect net/core/filter.c:2460 [inline]
 bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432
 ___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
 __bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238
 bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
 __bpf_prog_run include/linux/filter.h:657 [inline]
 bpf_prog_run include/linux/filter.h:664 [inline]
 bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425
 bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058
 bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269
 __sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678
 __do_sys_bpf kernel/bpf/syscall.c:5767 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5765 [inline]
 __x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765
 x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Reported-by: syzbot+a63a1f6a062033cf0f40@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=a63a1f6a062033cf0f40
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-15 11:41:02 +01:00
Petr Mladek
dafc2d0f1b Merge branch 'for-6.10-base-small' into for-linus 2024-05-15 11:58:26 +02:00
Hans de Goede
2513563edc platform/x86: Add new MeeGoPad ANX7428 Type-C Cross Switch driver
Some MeeGoPad top-set boxes have an ANX7428 Type-C Switch for USB3.1 Gen 1
and DisplayPort over Type-C alternate mode support.

The ANX7428 has a microcontroller which takes care of the PD negotiation
and automatically sets the builtin Crosspoint Switch to send the right
signal to the 4 highspeed pairs of the Type-C connector. It also takes
care of HPD and AUX channel routing for DP alternate mode.

IOW the ANX7428 operates fully autonomous and to the x5-Z8350 SoC
things look like there simple is a USB-3 Type-A connector and a
separate DisplayPort connector. Except that the BIOS does not
power on the ANX7428 at boot (meh).

Add a driver to power on the ANX7428. This driver is added under
drivers/platform/x86 rather than under drivers/usb/typec for 2 reasons:

1. This driver is specifically written to work with how the ANX7428 is
described in the ACPI tables of the MeeGoPad x86 (Cherry Trail) devices.

2. This driver only powers on the ANX7428 and does not do anything wrt
its Type-C functionality. It should be possible to tell the controller
which data- and/or power-role to negotiate and to swap the role(s) after
negotiation but the MeeGoPad top-set boxes always draw their power from
a separate power-connector and they only support USB host-mode. So this
functionality is unnecessary and due to lack of documentation this is
tricky to support.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240514180343.70795-1-hdegoede@redhat.com
2024-05-15 10:07:11 +02:00
Steven Rostedt (Google)
b9c6820f02 ring-buffer: Add cast to unsigned long addr passed to virt_to_page()
The sub-buffer pages are held in an unsigned long array, and when it is
passed to virt_to_page() a cast is needed.

Link: https://lore.kernel.org/all/20240515124808.06279d04@canb.auug.org.au/
Link: https://lore.kernel.org/linux-trace-kernel/20240515010558.4abaefdd@rorschach.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: 117c39200d ("ring-buffer: Introducing ring-buffer mapping functions")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2024-05-15 01:28:42 -04:00
Linus Torvalds
1b294a1f35 Merge tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Complete rework of garbage collection of AF_UNIX sockets.

     AF_UNIX is prone to forming reference count cycles due to fd
     passing functionality. New method based on Tarjan's Strongly
     Connected Components algorithm should be both faster and remove a
     lot of workarounds we accumulated over the years.

   - Add TCP fraglist GRO support, allowing chaining multiple TCP
     packets and forwarding them together. Useful for small switches /
     routers which lack basic checksum offload in some scenarios (e.g.
     PPPoE).

   - Support using SMP threads for handling packet backlog i.e. packet
     processing from software interfaces and old drivers which don't use
     NAPI. This helps move the processing out of the softirq jumble.

   - Continue work of converting from rtnl lock to RCU protection.

     Don't require rtnl lock when reading: IPv6 routing FIB, IPv6
     address labels, netdev threaded NAPI sysfs files, bonding driver's
     sysfs files, MPLS devconf, IPv4 FIB rules, netns IDs, tcp metrics,
     TC Qdiscs, neighbor entries, ARP entries via ioctl(SIOCGARP), a lot
     of the link information available via rtnetlink.

   - Small optimizations from Eric to UDP wake up handling, memory
     accounting, RPS/RFS implementation, TCP packet sizing etc.

   - Allow direct page recycling in the bulk API used by XDP, for +2%
     PPS.

   - Support peek with an offset on TCP sockets.

   - Add MPTCP APIs for querying last time packets were received/sent/acked
     and whether MPTCP "upgrade" succeeded on a TCP socket.

   - Add intra-node communication shortcut to improve SMC performance.

   - Add IPv6 (and IPv{4,6}-over-IPv{4,6}) support to the GTP protocol
     driver.

   - Add HSR-SAN (RedBOX) mode of operation to the HSR protocol driver.

   - Add reset reasons for tracing what caused a TCP reset to be sent.

   - Introduce direction attribute for xfrm (IPSec) states. State can be
     used either for input or output packet processing.

  Things we sprinkled into general kernel code:

   - Add bitmap_{read,write}(), bitmap_size(), expose BYTES_TO_BITS().

     This required touch-ups and renaming of a few existing users.

   - Add Endian-dependent __counted_by_{le,be} annotations.

   - Make building selftests "quieter" by printing summaries like
     "CC object.o" rather than full commands with all the arguments.

  Netfilter:

   - Use GFP_KERNEL to clone elements, to deal better with OOM
     situations and avoid failures in the .commit step.

  BPF:

   - Add eBPF JIT for ARCv2 CPUs.

   - Support attaching kprobe BPF programs through kprobe_multi link in
     a session mode, meaning, a BPF program is attached to both function
     entry and return, the entry program can decide if the return
     program gets executed and the entry program can share u64 cookie
     value with return program. "Session mode" is a common use-case for
     tetragon and bpftrace.

   - Add the ability to specify and retrieve BPF cookie for raw
     tracepoint programs in order to ease migration from classic to raw
     tracepoints.

   - Add an internal-only BPF per-CPU instruction for resolving per-CPU
     memory addresses and implement support in x86, ARM64 and RISC-V
     JITs. This allows inlining functions which need to access per-CPU
     state.

   - Optimize x86 BPF JIT's emit_mov_imm64, and add support for various
     atomics in bpf_arena which can be JITed as a single x86
     instruction. Support BPF arena on ARM64.

   - Add a new bpf_wq API for deferring events and refactor
     process-context bpf_timer code to keep common code where possible.

   - Harden the BPF verifier's and/or/xor value tracking.

   - Introduce crypto kfuncs to let BPF programs call kernel crypto
     APIs.

   - Support bpf_tail_call_static() helper for BPF programs with GCC 13.

   - Add bpf_preempt_{disable,enable}() kfuncs in order to allow a BPF
     program to have code sections where preemption is disabled.

  Driver API:

   - Skip software TC processing completely if all installed rules are
     marked as HW-only, instead of checking the HW-only flag rule by
     rule.

   - Add support for configuring PoE (Power over Ethernet), similar to
     the already existing support for PoDL (Power over Data Line)
     config.

   - Initial bits of a queue control API, for now allowing a single
     queue to be reset without disturbing packet flow to other queues.

   - Common (ethtool) statistics for hardware timestamping.

  Tests and tooling:

   - Remove the need to create a config file to run the net forwarding
     tests so that a naive "make run_tests" can exercise them.

   - Define a method of writing tests which require an external endpoint
     to communicate with (to send/receive data towards the test
     machine). Add a few such tests.

   - Create a shared code library for writing Python tests. Expose the
     YAML Netlink library from tools/ to the tests for easy Netlink
     access.

   - Move netfilter tests under net/, extend them, separate performance
     tests from correctness tests, and iron out issues found by running
     them "on every commit".

   - Refactor BPF selftests to use common network helpers.

   - Further work filling in YAML definitions of Netlink messages for:
     nftables, team driver, bonding interfaces, vlan interfaces, VF
     info, TC u32 mark, TC police action.

   - Teach Python YAML Netlink to decode attribute policies.

   - Extend the definition of the "indexed array" construct in the specs
     to cover arrays of scalars rather than just nests.

   - Add hyperlinks between definitions in generated Netlink docs.

  Drivers:

   - Make sure unsupported flower control flags are rejected by drivers,
     and make more drivers report errors directly to the application
     rather than dmesg (large number of driver changes from Asbjørn
     Sloth Tønnesen).

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - support multiple RSS contexts and steering traffic to them
         - support XDP metadata
         - make page pool allocations more NUMA aware
      - Intel (100G, ice, idpf):
         - extract datapath code common among Intel drivers into a library
         - use fewer resources in switchdev by sharing queues with the PF
         - add PFCP filter support
         - add Ethernet filter support
         - use a spinlock instead of HW lock in PTP clock ops
         - support 5 layer Tx scheduler topology
      - nVidia/Mellanox:
         - 800G link modes and 100G SerDes speeds
         - per-queue IRQ coalescing configuration
      - Marvell Octeon:
         - support offloading TC packet mark action

   - Ethernet NICs consumer, embedded and virtual:
      - stop lying about skb->truesize in USB Ethernet drivers, it
        messes up TCP memory calculations
      - Google cloud vNIC:
         - support changing ring size via ethtool
         - support ring reset using the queue control API
      - VirtIO net:
         - expose flow hash from RSS to XDP
         - per-queue statistics
         - add selftests
      - Synopsys (stmmac):
         - support controllers which require an RX clock signal from the
           MII bus to perform their hardware initialization
      - TI:
         - icssg_prueth: support ICSSG-based Ethernet on AM65x SR1.0 devices
         - icssg_prueth: add SW TX / RX Coalescing based on hrtimers
         - cpsw: minimal XDP support
      - Renesas (ravb):
         - support describing the MDIO bus
      - Realtek (r8169):
         - add support for RTL8168M
      - Microchip Sparx5:
         - matchall and flower actions mirred and redirect

   - Ethernet switches:
      - nVidia/Mellanox:
         - improve events processing performance
      - Marvell:
         - add support for MV88E6250 family internal PHYs
      - Microchip:
         - add DCB and DSCP mapping support for KSZ switches
         - vsc73xx: convert to PHYLINK
      - Realtek:
         - rtl8226b/rtl8221b: add C45 instances and SerDes switching

   - Many driver changes related to PHYLIB and PHYLINK deprecated API
     cleanup

   - Ethernet PHYs:
      - Add a new driver for Airoha EN8811H 2.5 Gigabit PHY.
      - micrel: lan8814: add support for PPS out and external timestamp trigger

   - WiFi:
      - Disable Wireless Extensions (WEXT) in all Wi-Fi 7 devices
        drivers. Modern devices can only be configured using nl80211.
      - mac80211/cfg80211
         - handle color change per link for WiFi 7 Multi-Link Operation
      - Intel (iwlwifi):
         - don't support puncturing in 5 GHz
         - support monitor mode on passive channels
         - BZ-W device support
         - P2P with HE/EHT support
         - re-add support for firmware API 90
         - provide channel survey information for Automatic Channel Selection
      - MediaTek (mt76):
         - mt7921 LED control
         - mt7925 EHT radiotap support
         - mt7920e PCI support
      - Qualcomm (ath11k):
         - P2P support for QCA6390, WCN6855 and QCA2066
         - support hibernation
         - ieee80211-freq-limit Device Tree property support
      - Qualcomm (ath12k):
         - refactoring in preparation of multi-link support
         - suspend and hibernation support
         - ACPI support
         - debugfs support, including dfs_simulate_radar support
      - RealTek:
         - rtw88: RTL8723CS SDIO device support
         - rtw89: RTL8922AE Wi-Fi 7 PCI device support
         - rtw89: complete features of new WiFi 7 chip 8922AE including
           BT-coexistence and Wake-on-WLAN
         - rtw89: use BIOS ACPI settings to set TX power and channels
         - rtl8xxxu: enable Management Frame Protection (MFP) support

   - Bluetooth:
      - support for Intel BlazarI and Filmore Peak2 (BE201)
      - support for MediaTek MT7921S SDIO
      - initial support for Intel PCIe BT driver
      - remove HCI_AMP support"

* tag 'net-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1827 commits)
  selftests: netfilter: fix packetdrill conntrack testcase
  net: gro: fix napi_gro_cb zeroed alignment
  Bluetooth: btintel_pcie: Refactor and code cleanup
  Bluetooth: btintel_pcie: Fix warning reported by sparse
  Bluetooth: hci_core: Fix not handling hdev->le_num_of_adv_sets=1
  Bluetooth: btintel: Fix compiler warning for multi_v7_defconfig config
  Bluetooth: btintel_pcie: Fix compiler warnings
  Bluetooth: btintel_pcie: Add *setup* function to download firmware
  Bluetooth: btintel_pcie: Add support for PCIe transport
  Bluetooth: btintel: Export few static functions
  Bluetooth: HCI: Remove HCI_AMP support
  Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()
  Bluetooth: qca: Fix error code in qca_read_fw_build_info()
  Bluetooth: hci_conn: Use __counted_by() and avoid -Wfamnae warning
  Bluetooth: btintel: Add support for Filmore Peak2 (BE201)
  Bluetooth: btintel: Add support for BlazarI
  LE Create Connection command timeout increased to 20 secs
  dt-bindings: net: bluetooth: Add MediaTek MT7921S SDIO Bluetooth
  Bluetooth: compute LE flow credits based on recvbuf space
  Bluetooth: hci_sync: Use cmd->num_cis instead of magic number
  ...
2024-05-14 19:42:24 -07:00
Linus Torvalds
b850dc206a Merge tag 'firewire-updates-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
 "During the development period of v6.8 kernel, it became evident that
  there was a lack of helper utilities to trace the initial state of
  bus, while investigating certain PHYs compliant with different
  versions of IEEE 1394 specification.

  This series of changes includes the addition of tracepoints events,
  provided by 'firewire' subsystem. These events enable tracing of how
  firewire core functions during bus reset and asynchronous
  communication over IEEE 1394 bus.

  When implementing the tracepoints events, it was found that the
  existing serialization and deserialization helpers for several types
  of asynchronous packets are scattered across both firewire-core and
  firewire-ohci kernel modules. A set of inline functions is newly added
  to address it, along with some KUnit tests, serving as the foundation
  for the tracepoints events. This renders the dispersed code obsolete.

  The remaining changes constitute the final steps in phasing out the
  usage of deprecated PCI MSI APIs, in continuation from the previous
  version"

* tag 'firewire-updates-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (29 commits)
  firewire: obsolete usage of *-objs in Makefile for KUnit test
  firewire: core: remove flag and width from u64 formats of tracepoints events
  firewire: core: fix type of timestamp for async_inbound_template tracepoints events
  firewire: core: add tracepoint event for handling bus reset
  Revert "firewire: core: option to log bus reset initiation"
  firewire: core: add tracepoints events for initiating bus reset
  firewire: ohci: obsolete OHCI_PARAM_DEBUG_BUSRESETS from debug module parameter
  firewire: ohci: add bus-reset event for initial set of handled irq
  firewire: core: add tracepoints event for asynchronous inbound phy packet
  firewire: core/cdev: add tracepoints events for asynchronous phy packet
  firewire: core: add tracepoints events for asynchronous outbound response
  firewire: core: add tracepoint event for asynchronous inbound request
  firewire: core: add tracepoints event for asynchronous inbound response
  firewire: core: add tracepoints events for asynchronous outbound request
  firewire: core: add support for Linux kernel tracepoints
  firewire: core: replace local macros with common inline functions for isochronous packet header
  firewire: core: add common macro to serialize/deserialize isochronous packet header
  firewire: core: obsolete tcode check macros with inline functions
  firewire: ohci: replace hard-coded values with common macros
  firewire: ohci: replace hard-coded values with inline functions for asynchronous packet header
  ...
2024-05-14 18:57:22 -07:00