Commit Graph

49986 Commits

Author SHA1 Message Date
Linus Torvalds
d310ec03a3 The performance event updates for v5.12 are:
- Add CPU-PMU support for Intel Sapphire Rapids CPUs
 
  - Extend the perf ABI with PERF_SAMPLE_WEIGHT_STRUCT, to offer two-parameter
    sampling event feedback. Not used yet, but is intended for Golden Cove
    CPU-PMU, which can provide both the instruction latency and the cache
    latency information for memory profiling events.
 
  - Remove experimental, default-disabled perfmon-v4 counter_freezing support
    that could only be enabled via a boot option. The hardware is hopelessly
    broken, we'd like to make sure nobody starts relying on this, as it would
    only end in tears.
 
  - Fix energy/power events on Intel SPR platforms
 
  - Simplify the uprobes resume_execution() logic
 
  - Misc smaller fixes.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance event updates from Ingo Molnar:

 - Add CPU-PMU support for Intel Sapphire Rapids CPUs

 - Extend the perf ABI with PERF_SAMPLE_WEIGHT_STRUCT, to offer
   two-parameter sampling event feedback. Not used yet, but is intended
   for Golden Cove CPU-PMU, which can provide both the instruction
   latency and the cache latency information for memory profiling
   events.

 - Remove experimental, default-disabled perfmon-v4 counter_freezing
   support that could only be enabled via a boot option. The hardware is
   hopelessly broken, we'd like to make sure nobody starts relying on
   this, as it would only end in tears.

 - Fix energy/power events on Intel SPR platforms

 - Simplify the uprobes resume_execution() logic

 - Misc smaller fixes.

* tag 'perf-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/rapl: Fix psys-energy event on Intel SPR platform
  perf/x86/rapl: Only check lower 32bits for RAPL energy counters
  perf/x86/rapl: Add msr mask support
  perf/x86/kvm: Add Cascade Lake Xeon steppings to isolation_ucodes[]
  perf/x86/intel: Support CPUID 10.ECX to disable fixed counters
  perf/x86/intel: Add perf core PMU support for Sapphire Rapids
  perf/x86/intel: Filter unsupported Topdown metrics event
  perf/x86/intel: Factor out intel_update_topdown_event()
  perf/core: Add PERF_SAMPLE_WEIGHT_STRUCT
  perf/intel: Remove Perfmon-v4 counter_freezing support
  x86/perf: Use static_call for x86_pmu.guest_get_msrs
  perf/x86/intel/uncore: With > 8 nodes, get pci bus die id from NUMA info
  perf/x86/intel/uncore: Store the logical die id instead of the physical die id.
  x86/kprobes: Do not decode opcode in resume_execution()
2021-02-21 12:49:32 -08:00
Linus Torvalds
657bd90c93 Scheduler updates for v5.12:
[ NOTE: unfortunately this tree had to be freshly rebased today,
         it's a same-content tree of 82891be90f3c (-next published)
         merged with v5.11.
 
         The main reason for the rebase was an authorship misattribution
         problem with a new commit, which we noticed in the last minute,
         and which we didn't want to be merged upstream. The offending
         commit was deep in the tree, and dependent commits had to be
         rebased as well. ]
 
 - Core scheduler updates:
 
   - Add CONFIG_PREEMPT_DYNAMIC: this in its current form adds the
     preempt=none/voluntary/full boot options (default: full),
     to allow distros to build a PREEMPT kernel but fall back to
     close to PREEMPT_VOLUNTARY (or PREEMPT_NONE) runtime scheduling
     behavior via a boot time selection.
 
     There's also the /debug/sched_debug switch to do this runtime.
 
     This feature is implemented via runtime patching (a new variant of static calls).
 
     The scope of the runtime patching can be best reviewed by looking
     at the sched_dynamic_update() function in kernel/sched/core.c.
 
     ( Note that the dynamic none/voluntary mode isn't 100% identical,
       for example preempt-RCU is available in all cases, plus the
       preempt count is maintained in all models, which has runtime
       overhead even with the code patching. )
 
     The PREEMPT_VOLUNTARY/PREEMPT_NONE models, used by the vast majority
     of distributions, are supposed to be unaffected.
 
   - Fix ignored rescheduling after rcu_eqs_enter(). This is a bug that
     was found via rcutorture triggering a hang. The bug is that
     rcu_idle_enter() may wake up a NOCB kthread, but this happens after
     the last generic need_resched() check. Some cpuidle drivers fix it
     by chance but many others don't.
 
     In true 2020 fashion the original bug fix has grown into a 5-patch
     scheduler/RCU fix series plus another 16 RCU patches to address
     the underlying issue of missed preemption events. These are the
     initial fixes that should fix current incarnations of the bug.
 
   - Clean up rbtree usage in the scheduler, by providing & using the following
     consistent set of rbtree APIs:
 
      partial-order; less() based:
        - rb_add(): add a new entry to the rbtree
        - rb_add_cached(): like rb_add(), but for a rb_root_cached
 
      total-order; cmp() based:
        - rb_find(): find an entry in an rbtree
        - rb_find_add(): find an entry, and add if not found
 
        - rb_find_first(): find the first (leftmost) matching entry
        - rb_next_match(): continue from rb_find_first()
        - rb_for_each(): iterate a sub-tree using the previous two
 
   - Improve the SMP/NUMA load-balancer: scan for an idle sibling in a single pass.
     This is a 4-commit series where each commit improves one aspect of the idle
     sibling scan logic.
 
   - Improve the cpufreq cooling driver by getting the effective CPU utilization
     metrics from the scheduler
 
   - Improve the fair scheduler's active load-balancing logic by reducing the number
     of active LB attempts & lengthen the load-balancing interval. This improves
     stress-ng mmapfork performance.
 
   - Fix CFS's estimated utilization (util_est) calculation bug that can result in
     too high utilization values
 
 - Misc updates & fixes:
 
    - Fix the HRTICK reprogramming & optimization feature
    - Fix SCHED_SOFTIRQ raising race & warning in the CPU offlining code
    - Reduce dl_add_task_root_domain() overhead
    - Fix uprobes refcount bug
    - Process pending softirqs in flush_smp_call_function_from_idle()
    - Clean up task priority related defines, remove *USER_*PRIO and
      USER_PRIO()
    - Simplify the sched_init_numa() deduplication sort
    - Documentation updates
    - Fix EAS bug in update_misfit_status(), which degraded the quality
      of energy-balancing
    - Smaller cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Core scheduler updates:

   - Add CONFIG_PREEMPT_DYNAMIC: this in its current form adds the
     preempt=none/voluntary/full boot options (default: full), to allow
     distros to build a PREEMPT kernel but fall back to close to
     PREEMPT_VOLUNTARY (or PREEMPT_NONE) runtime scheduling behavior via
     a boot time selection.

     There's also the /debug/sched_debug switch to do this runtime.

     This feature is implemented via runtime patching (a new variant of
     static calls).

     The scope of the runtime patching can be best reviewed by looking
     at the sched_dynamic_update() function in kernel/sched/core.c.

     ( Note that the dynamic none/voluntary mode isn't 100% identical,
       for example preempt-RCU is available in all cases, plus the
       preempt count is maintained in all models, which has runtime
       overhead even with the code patching. )

     The PREEMPT_VOLUNTARY/PREEMPT_NONE models, used by the vast
     majority of distributions, are supposed to be unaffected.

   - Fix ignored rescheduling after rcu_eqs_enter(). This is a bug that
     was found via rcutorture triggering a hang. The bug is that
     rcu_idle_enter() may wake up a NOCB kthread, but this happens after
     the last generic need_resched() check. Some cpuidle drivers fix it
     by chance but many others don't.

     In true 2020 fashion the original bug fix has grown into a 5-patch
     scheduler/RCU fix series plus another 16 RCU patches to address the
     underlying issue of missed preemption events. These are the initial
     fixes that should fix current incarnations of the bug.

   - Clean up rbtree usage in the scheduler, by providing & using the
     following consistent set of rbtree APIs:

       partial-order; less() based:
         - rb_add(): add a new entry to the rbtree
         - rb_add_cached(): like rb_add(), but for a rb_root_cached

       total-order; cmp() based:
         - rb_find(): find an entry in an rbtree
         - rb_find_add(): find an entry, and add if not found

         - rb_find_first(): find the first (leftmost) matching entry
         - rb_next_match(): continue from rb_find_first()
         - rb_for_each(): iterate a sub-tree using the previous two

   - Improve the SMP/NUMA load-balancer: scan for an idle sibling in a
     single pass. This is a 4-commit series where each commit improves
     one aspect of the idle sibling scan logic.

   - Improve the cpufreq cooling driver by getting the effective CPU
     utilization metrics from the scheduler

   - Improve the fair scheduler's active load-balancing logic by
     reducing the number of active LB attempts & lengthen the
     load-balancing interval. This improves stress-ng mmapfork
     performance.

   - Fix CFS's estimated utilization (util_est) calculation bug that can
     result in too high utilization values

  Misc updates & fixes:

   - Fix the HRTICK reprogramming & optimization feature

   - Fix SCHED_SOFTIRQ raising race & warning in the CPU offlining code

   - Reduce dl_add_task_root_domain() overhead

   - Fix uprobes refcount bug

   - Process pending softirqs in flush_smp_call_function_from_idle()

   - Clean up task priority related defines, remove *USER_*PRIO and
     USER_PRIO()

   - Simplify the sched_init_numa() deduplication sort

   - Documentation updates

   - Fix EAS bug in update_misfit_status(), which degraded the quality
     of energy-balancing

   - Smaller cleanups"

* tag 'sched-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  sched,x86: Allow !PREEMPT_DYNAMIC
  entry/kvm: Explicitly flush pending rcuog wakeup before last rescheduling point
  entry: Explicitly flush pending rcuog wakeup before last rescheduling point
  rcu/nocb: Trigger self-IPI on late deferred wake up before user resume
  rcu/nocb: Perform deferred wake up before last idle's need_resched() check
  rcu: Pull deferred rcuog wake up to rcu_eqs_enter() callers
  sched/features: Distinguish between NORMAL and DEADLINE hrtick
  sched/features: Fix hrtick reprogramming
  sched/deadline: Reduce rq lock contention in dl_add_task_root_domain()
  uprobes: (Re)add missing get_uprobe() in __find_uprobe()
  smp: Process pending softirqs in flush_smp_call_function_from_idle()
  sched: Harden PREEMPT_DYNAMIC
  static_call: Allow module use without exposing static_call_key
  sched: Add /debug/sched_preempt
  preempt/dynamic: Support dynamic preempt with preempt= boot option
  preempt/dynamic: Provide irqentry_exit_cond_resched() static call
  preempt/dynamic: Provide preempt_schedule[_notrace]() static calls
  preempt/dynamic: Provide cond_resched() and might_resched() static calls
  preempt: Introduce CONFIG_PREEMPT_DYNAMIC
  static_call: Provide DEFINE_STATIC_CALL_RET0()
  ...
2021-02-21 12:35:04 -08:00
Linus Torvalds
9eef023345 These are the v5.12 updates for the locking subsystem:
- Core locking primitives updates:
 
     - Remove mutex_trylock_recursive() from the API - no users left
     - Simplify + constify the futex code a bit
 
  - Lockdep updates:
 
     - Teach lockdep about local_lock_t
     - Add CONFIG_DEBUG_IRQFLAGS=y debug config option to check for
       potentially unsafe IRQ mask restoration patterns. (I.e.
       calling raw_local_irq_restore() with IRQs enabled.)
     - Add wait context self-tests
     - Fix graph lock corner case corrupting internal data structures
     - Fix noinstr annotations
 
  - LKMM updates:
 
     - Simplify the litmus tests
     - Documentation fixes
 
  - KCSAN updates:
 
     - Re-enable KCSAN instrumentation in lib/random32.c
 
  - Misc fixes:
 
     - Don't branch-trace static label APIs
     - DocBook fix
     - Remove stale leftover empty file
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Core locking primitives updates:
    - Remove mutex_trylock_recursive() from the API - no users left
    - Simplify + constify the futex code a bit

  Lockdep updates:
    - Teach lockdep about local_lock_t
    - Add CONFIG_DEBUG_IRQFLAGS=y debug config option to check for
      potentially unsafe IRQ mask restoration patterns. (I.e.
      calling raw_local_irq_restore() with IRQs enabled.)
    - Add wait context self-tests
    - Fix graph lock corner case corrupting internal data structures
    - Fix noinstr annotations

  LKMM updates:
    - Simplify the litmus tests
    - Documentation fixes

  KCSAN updates:
    - Re-enable KCSAN instrumentation in lib/random32.c

  Misc fixes:
    - Don't branch-trace static label APIs
    - DocBook fix
    - Remove stale leftover empty file"

* tag 'locking-core-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
  checkpatch: Don't check for mutex_trylock_recursive()
  locking/mutex: Kill mutex_trylock_recursive()
  s390: Use arch_local_irq_{save,restore}() in early boot code
  lockdep: Noinstr annotate warn_bogus_irq_restore()
  locking/lockdep: Avoid unmatched unlock
  locking/rwsem: Remove empty rwsem.h
  locking/rtmutex: Add missing kernel-doc markup
  futex: Remove unneeded gotos
  futex: Change utime parameter to be 'const ... *'
  lockdep: report broken irq restoration
  jump_label: Do not profile branch annotations
  locking: Add Reviewers
  locking/selftests: Add local_lock inversion tests
  locking/lockdep: Exclude local_lock_t from IRQ inversions
  locking/lockdep: Clean up check_redundant() a bit
  locking/lockdep: Add a skip() function to __bfs()
  locking/lockdep: Mark local_lock_t
  locking/selftests: More granular debug_locks_verbose
  lockdep/selftest: Add wait context selftests
  tools/memory-model: Fix typo in klitmus7 compatibility table
  ...
2021-02-21 12:12:01 -08:00
Linus Torvalds
d089f48fba These are the latest RCU updates for v5.12:
- Documentation updates.
 
  - Miscellaneous fixes.
 
  - kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return
    addresses to more easily locate bugs.  This has a couple of RCU-related commits,
    but is mostly MM.  Was pulled in with akpm's agreement.
 
  - Per-callback-batch tracking of numbers of callbacks,
    which enables better debugging information and smarter
    reactions to large numbers of callbacks.
 
  - The first round of changes to allow CPUs to be runtime switched from and to
    callback-offloaded state.
 
  - CONFIG_PREEMPT_RT-related changes.
 
  - RCU CPU stall warning updates.
 
  - Addition of polling grace-period APIs for SRCU.
 
  - Torture-test and torture-test scripting updates, including a "torture everything"
    script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale.
    Plus does an allmodconfig build.
 
  - nolibc fixes for the torture tests
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RCU updates from Ingo Molnar:
 "These are the latest RCU updates for v5.12:

   - Documentation updates.

   - Miscellaneous fixes.

   - kfree_rcu() updates: Addition of mem_dump_obj() to provide
     allocator return addresses to more easily locate bugs. This has a
     couple of RCU-related commits, but is mostly MM. Was pulled in with
     akpm's agreement.

   - Per-callback-batch tracking of numbers of callbacks, which enables
     better debugging information and smarter reactions to large numbers
     of callbacks.

   - The first round of changes to allow CPUs to be runtime switched
     from and to callback-offloaded state.

   - CONFIG_PREEMPT_RT-related changes.

   - RCU CPU stall warning updates.

   - Addition of polling grace-period APIs for SRCU.

   - Torture-test and torture-test scripting updates, including a
     "torture everything" script that runs rcutorture, locktorture,
     scftorture, rcuscale, and refscale. Plus does an allmodconfig
     build.

   - nolibc fixes for the torture tests"

* tag 'core-rcu-2021-02-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (130 commits)
  percpu_ref: Dump mem_dump_obj() info upon reference-count underflow
  rcu: Make call_rcu() print mem_dump_obj() info for double-freed callback
  mm: Make mem_obj_dump() vmalloc() dumps include start and length
  mm: Make mem_dump_obj() handle vmalloc() memory
  mm: Make mem_dump_obj() handle NULL and zero-sized pointers
  mm: Add mem_dump_obj() to print source of memory block
  tools/rcutorture: Fix position of -lgcc in mkinitrd.sh
  tools/nolibc: Fix position of -lgcc in the documented example
  tools/nolibc: Emit detailed error for missing alternate syscall number definitions
  tools/nolibc: Remove incorrect definitions of __ARCH_WANT_*
  tools/nolibc: Get timeval, timespec and timezone from linux/time.h
  tools/nolibc: Implement poll() based on ppoll()
  tools/nolibc: Implement fork() based on clone()
  tools/nolibc: Make getpgrp() fall back to getpgid(0)
  tools/nolibc: Make dup2() rely on dup3() when available
  tools/nolibc: Add the definition for dup()
  rcutorture: Add rcutree.use_softirq=0 to RUDE01 and TASKS01
  torture: Maintain torture-specific set of CPUs-online books
  torture: Clean up after torture-test CPU hotplugging
  rcutorture: Make object_debug also double call_rcu() heap object
  ...
2021-02-21 12:04:41 -08:00
Linus Torvalds
3f6ec19f2d Time and timer updates:
- Instead of new drivers remove tango, sirf, u300 and atlas drivers
  - Add suspend/resume support for microchip pit64b
  - The usual fixes, improvements and cleanups here and there
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Merge tag 'timers-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Time and timer updates:

   - Instead of new drivers remove tango, sirf, u300 and atlas drivers

   - Add suspend/resume support for microchip pit64b

   - The usual fixes, improvements and cleanups here and there"

* tag 'timers-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timens: Delete no-op time_ns_init()
  alarmtimer: Update kerneldoc
  clocksource/drivers/timer-microchip-pit64b: Add clocksource suspend/resume
  clocksource/drivers/prima: Remove sirf prima driver
  clocksource/drivers/atlas: Remove sirf atlas driver
  clocksource/drivers/tango: Remove tango driver
  clocksource/drivers/u300: Remove the u300 driver
  dt-bindings: timer: nuvoton: Clarify that interrupt of timer 0 should be specified
  clocksource/drivers/davinci: Move pr_fmt() before the includes
  clocksource/drivers/efm32: Drop unused timer code
2021-02-21 11:55:43 -08:00
Linus Torvalds
b5183bc94b Updates for the irq subsystem:
- The usual new irq chip driver (Realtek RTL83xx)
   - Removal of sirfsoc and tango irq chip drivers
   - Conversion of the sun6i chip support to hierarchical irq domains
   - The usual fixes, improvements and cleanups all over the place
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Merge tag 'irq-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for the irq subsystem:

   - The usual new irq chip driver (Realtek RTL83xx)

   - Removal of sirfsoc and tango irq chip drivers

   - Conversion of the sun6i chip support to hierarchical irq domains

   - The usual fixes, improvements and cleanups all over the place"

* tag 'irq-core-2021-02-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/imx: IMX_INTMUX should not default to y, unconditionally
  irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap
  irqchip/csky-mpintc: Prevent selection on unsupported platforms
  irqchip: Add support for Realtek RTL838x/RTL839x interrupt controller
  dt-bindings: interrupt-controller: Add Realtek RTL838x/RTL839x support
  irqchip/ls-extirq: add IRQCHIP_SKIP_SET_WAKE to the irqchip flags
  genirq: Use new tasklet API for resend_tasklet
  dt-bindings: qcom,pdc: Add compatible for SM8350
  dt-bindings: qcom,pdc: Add compatible for SM8250
  irqchip/sun6i-r: Add wakeup support
  irqchip/sun6i-r: Use a stacked irqchip driver
  dt-bindings: irq: sun6i-r: Add a compatible for the H3
  dt-bindings: irq: sun6i-r: Split the binding from sun7i-nmi
  irqchip/gic-v3: Fix typos in PMR/RPR SCR_EL3.FIQ handling explanation
  irqchip: Remove sirfsoc driver
  irqchip: Remove sigma tango driver
2021-02-21 11:53:06 -08:00
Linus Torvalds
582cd91f69 for-5.12/block-2021-02-17
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Merge tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block

Pull core block updates from Jens Axboe:
 "Another nice round of removing more code than what is added, mostly
  due to Christoph's relentless pursuit of tech debt removal/cleanups.
  This pull request contains:

   - Two series of BFQ improvements (Paolo, Jan, Jia)

   - Block iov_iter improvements (Pavel)

   - bsg error path fix (Pan)

   - blk-mq scheduler improvements (Jan)

   - -EBUSY discard fix (Jan)

   - bvec allocation improvements (Ming, Christoph)

   - bio allocation and init improvements (Christoph)

   - Store bdev pointer in bio instead of gendisk + partno (Christoph)

   - Block trace point cleanups (Christoph)

   - hard read-only vs read-only split (Christoph)

   - Block based swap cleanups (Christoph)

   - Zoned write granularity support (Damien)

   - Various fixes/tweaks (Chunguang, Guoqing, Lei, Lukas, Huhai)"

* tag 'for-5.12/block-2021-02-17' of git://git.kernel.dk/linux-block: (104 commits)
  mm: simplify swapdev_block
  sd_zbc: clear zone resources for non-zoned case
  block: introduce blk_queue_clear_zone_settings()
  zonefs: use zone write granularity as block size
  block: introduce zone_write_granularity limit
  block: use blk_queue_set_zoned in add_partition()
  nullb: use blk_queue_set_zoned() to setup zoned devices
  nvme: cleanup zone information initialization
  block: document zone_append_max_bytes attribute
  block: use bi_max_vecs to find the bvec pool
  md/raid10: remove dead code in reshape_request
  block: mark the bio as cloned in bio_iov_bvec_set
  block: set BIO_NO_PAGE_REF in bio_iov_bvec_set
  block: remove a layer of indentation in bio_iov_iter_get_pages
  block: turn the nr_iovecs argument to bio_alloc* into an unsigned short
  block: remove the 1 and 4 vec bvec_slabs entries
  block: streamline bvec_alloc
  block: factor out a bvec_alloc_gfp helper
  block: move struct biovec_slab to bio.c
  block: reuse BIO_INLINE_VECS for integrity bvecs
  ...
2021-02-21 11:02:48 -08:00
Linus Torvalds
24880bef41 Remove oprofile and dcookies support
The "oprofile" user-space tools don't use the kernel OPROFILE support any more,
 and haven't in a long time. User-space has been converted to the perf
 interfaces.
 
 The dcookies stuff is only used by the oprofile code. Now that oprofile's
 support is getting removed from the kernel, there is no need for dcookies as
 well.
 
 Remove kernel's old oprofile and dcookies support.
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Merge tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux

Pull oprofile and dcookies removal from Viresh Kumar:
 "Remove oprofile and dcookies support

  The 'oprofile' user-space tools don't use the kernel OPROFILE support
  any more, and haven't in a long time. User-space has been converted to
  the perf interfaces.

  The dcookies stuff is only used by the oprofile code. Now that
  oprofile's support is getting removed from the kernel, there is no
  need for dcookies as well.

  Remove kernel's old oprofile and dcookies support"

* tag 'oprofile-removal-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux:
  fs: Remove dcookies support
  drivers: Remove CONFIG_OPROFILE support
  arch: xtensa: Remove CONFIG_OPROFILE support
  arch: x86: Remove CONFIG_OPROFILE support
  arch: sparc: Remove CONFIG_OPROFILE support
  arch: sh: Remove CONFIG_OPROFILE support
  arch: s390: Remove CONFIG_OPROFILE support
  arch: powerpc: Remove oprofile
  arch: powerpc: Stop building and using oprofile
  arch: parisc: Remove CONFIG_OPROFILE support
  arch: mips: Remove CONFIG_OPROFILE support
  arch: microblaze: Remove CONFIG_OPROFILE support
  arch: ia64: Remove rest of perfmon support
  arch: ia64: Remove CONFIG_OPROFILE support
  arch: hexagon: Don't select HAVE_OPROFILE
  arch: arc: Remove CONFIG_OPROFILE support
  arch: arm: Remove CONFIG_OPROFILE support
  arch: alpha: Remove CONFIG_OPROFILE support
2021-02-21 10:40:34 -08:00
Linus Torvalds
b52bb135aa New code for 5.12:
- Fix an ABBA deadlock when renaming files on overlayfs.
 - Make sure that we can't overflow the inode extent counters when adding
   to or removing extents from a file.
 - Make directory sgid inheritance work the same way as all the other
   filesystems.
 - Don't drain the buffer cache on freeze and ro remount, which should
   reduce the amount of time if read-only workloads are continuing
   during the freeze.
 - Fix a bug where symlink size isn't reported to the vfs in ecryptfs.
 - Disentangle log cleaning from log covering.  This refactoring sets us
   up for future changes to the log, though for now it simply means that
   we can use covering for freezes, and cleaning becomes something we
   only do at unmount.
 - Speed up file fsyncs by reducing iolock cycling.
 - Fix delalloc blocks leaking when changing the project id fails because
   of input validation errors in FSSETXATTR.
 - Fix oversized quota reservation when converting unwritten extents
   during a DAX write.
 - Create a transaction allocation helper function to standardize the
   idiom of allocating a transaction, reserving blocks, locking inodes,
   and reserving quota.  Replace all the open-coded logic for file
   creation, file ownership changes, and file modifications to use them.
 - Actually shut down the fs if the incore quota reservations get
   corrupted.
 - Fix background block garbage collection scans to not block and to
   actually clean out CoW staging extents properly.
 - Run block gc scans when we run low on project quota.
 - Use the standardized transaction allocation helpers to make it so that
   ENOSPC and EDQUOT errors during reservation will back out, invoke the
   block gc scanner, and try again.  This is preparation for introducing
   background inode garbage collection in the next cycle.
 - Combine speculative post-EOF block garbage collection with speculative
   copy on write block garbage collection.
 - Enable multithreaded quotacheck.
 - Allow sysadmins to tweak the CPU affinities and maximum concurrency
   levels of quotacheck and background blockgc worker pools.
 - Expose the inode btree counter feature in the fs geometry ioctl.
 - Cleanups of the growfs code in preparation for starting work on
   filesystem shrinking.
 - Fix all the bloody gcc warnings that the maintainer knows about. :P
 - Fix a RST syntax error.
 - Don't trigger bmbt corruption assertions after the fs shuts down.
 - Restore behavior of forcing SIGBUS on a shut down filesystem when
   someone triggers a mmap write fault (or really, any buffered write).
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Merge tag 'xfs-5.12-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "There's a lot going on this time, which seems about right for this
  drama-filled year.

  Community developers added some code to speed up freezing when
  read-only workloads are still running, refactored the logging code,
  added checks to prevent file extent counter overflow, reduced iolock
  cycling to speed up fsync and gc scans, and started the slow march
  towards supporting filesystem shrinking.

  There's a huge refactoring of the internal speculative preallocation
  garbage collection code which fixes a bunch of bugs, makes the gc
  scheduling per-AG and hence multithreaded, and standardizes the retry
  logic when we try to reserve space or quota, can't, and want to
  trigger a gc scan. We also enable multithreaded quotacheck to reduce
  mount times further. This is also preparation for background file gc,
  which may or may not land for 5.13.

  We also fixed some deadlocks in the rename code, fixed a quota
  accounting leak when FSSETXATTR fails, restored the behavior that
  write faults to an mmap'd region actually cause a SIGBUS, fixed a bug
  where sgid directory inheritance wasn't quite working properly, and
  fixed a bug where symlinks weren't working properly in ecryptfs. We
  also now advertise the inode btree counters feature that was
  introduced two cycles ago.

  Summary:

   - Fix an ABBA deadlock when renaming files on overlayfs.

   - Make sure that we can't overflow the inode extent counters when
     adding to or removing extents from a file.

   - Make directory sgid inheritance work the same way as all the other
     filesystems.

   - Don't drain the buffer cache on freeze and ro remount, which should
     reduce the amount of time if read-only workloads are continuing
     during the freeze.

   - Fix a bug where symlink size isn't reported to the vfs in ecryptfs.

   - Disentangle log cleaning from log covering. This refactoring sets
     us up for future changes to the log, though for now it simply means
     that we can use covering for freezes, and cleaning becomes
     something we only do at unmount.

   - Speed up file fsyncs by reducing iolock cycling.

   - Fix delalloc blocks leaking when changing the project id fails
     because of input validation errors in FSSETXATTR.

   - Fix oversized quota reservation when converting unwritten extents
     during a DAX write.

   - Create a transaction allocation helper function to standardize the
     idiom of allocating a transaction, reserving blocks, locking
     inodes, and reserving quota. Replace all the open-coded logic for
     file creation, file ownership changes, and file modifications to
     use them.

   - Actually shut down the fs if the incore quota reservations get
     corrupted.

   - Fix background block garbage collection scans to not block and to
     actually clean out CoW staging extents properly.

   - Run block gc scans when we run low on project quota.

   - Use the standardized transaction allocation helpers to make it so
     that ENOSPC and EDQUOT errors during reservation will back out,
     invoke the block gc scanner, and try again. This is preparation for
     introducing background inode garbage collection in the next cycle.

   - Combine speculative post-EOF block garbage collection with
     speculative copy on write block garbage collection.

   - Enable multithreaded quotacheck.

   - Allow sysadmins to tweak the CPU affinities and maximum concurrency
     levels of quotacheck and background blockgc worker pools.

   - Expose the inode btree counter feature in the fs geometry ioctl.

   - Cleanups of the growfs code in preparation for starting work on
     filesystem shrinking.

   - Fix all the bloody gcc warnings that the maintainer knows about. :P

   - Fix a RST syntax error.

   - Don't trigger bmbt corruption assertions after the fs shuts down.

   - Restore behavior of forcing SIGBUS on a shut down filesystem when
     someone triggers a mmap write fault (or really, any buffered
     write)"

* tag 'xfs-5.12-merge-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (85 commits)
  xfs: consider shutdown in bmapbt cursor delete assert
  xfs: fix boolreturn.cocci warnings
  xfs: restore shutdown check in mapped write fault path
  xfs: fix rst syntax error in admin guide
  xfs: fix incorrect root dquot corruption error when switching group/project quota types
  xfs: get rid of xfs_growfs_{data,log}_t
  xfs: rename `new' to `delta' in xfs_growfs_data_private()
  libxfs: expose inobtcount in xfs geometry
  xfs: don't bounce the iolock between free_{eof,cow}blocks
  xfs: expose the blockgc workqueue knobs publicly
  xfs: parallelize block preallocation garbage collection
  xfs: rename block gc start and stop functions
  xfs: only walk the incore inode tree once per blockgc scan
  xfs: consolidate the eofblocks and cowblocks workers
  xfs: consolidate incore inode radix tree posteof/cowblocks tags
  xfs: remove trivial eof/cowblocks functions
  xfs: hide xfs_icache_free_cowblocks
  xfs: hide xfs_icache_free_eofblocks
  xfs: relocate the eofb/cowb workqueue functions
  xfs: set WQ_SYSFS on all workqueues in debug mode
  ...
2021-02-21 10:34:36 -08:00
Linus Torvalds
f7b36dc5cb fsverity updates for 5.12
Add an ioctl which allows reading fs-verity metadata from a file.
 
 This is useful when a file with fs-verity enabled needs to be served
 somewhere, and the other end wants to do its own fs-verity compatible
 verification of the file.  See the commit messages for details.
 
 This new ioctl has been tested using new xfstests I've written for it.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fsverity updates from Eric Biggers:
 "Add an ioctl which allows reading fs-verity metadata from a file.

  This is useful when a file with fs-verity enabled needs to be served
  somewhere, and the other end wants to do its own fs-verity compatible
  verification of the file. See the commit messages for details.

  This new ioctl has been tested using new xfstests I've written for it"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fs-verity: support reading signature with ioctl
  fs-verity: support reading descriptor with ioctl
  fs-verity: support reading Merkle tree with ioctl
  fs-verity: add FS_IOC_READ_VERITY_METADATA ioctl
  fs-verity: don't pass whole descriptor to fsverity_verify_signature()
  fs-verity: factor out fsverity_get_descriptor()
2021-02-21 10:25:24 -08:00
Linus Torvalds
8b42fe123b f2fs-for-5.12-rc1
We've added two major features: 1) compression level and 2) checkpoint_merge, in
 this round. 1) compression level expands 'compress_algorithm' mount option to
 accept parameter as format of <algorithm>:<level>, by this way, it gives a way
 to allow user to do more specified config on lz4 and zstd compression level,
 then f2fs compression can provide higher compress ratio. 2) checkpoint_merge
 creates a kernel daemon and makes it to merge concurrent checkpoint requests as
 much as possible to eliminate redundant checkpoint issues. Plus, we can
 eliminate the sluggish issue caused by slow checkpoint operation when the
 checkpoint is done in a process context in a cgroup having low i/o budget and
 cpu shares.
 
 Enhancement:
  - add compress level for lz4 and zstd in mount option
  - checkpoint_merge mount option
  - deprecate f2fs_trace_io
 
 Bug fix:
  - flush data when enabling checkpoint back
  - handle corner cases of mount options
  - missing ACL update and lock for I_LINKABLE flag
  - attach FIEMAP_EXTENT_MERGED in f2fs_fiemap
  - fix potential deadlock in compression flow
  - fix wrong submit_io condition
 
 As usual, we've cleaned up many code flows and fixed minor bugs.
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Merge tag 'f2fs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "We've added two major features: 1) compression level and 2)
  checkpoint_merge, in this round.

  Compression level expands 'compress_algorithm' mount option to accept
  parameter as format of <algorithm>:<level>, by this way, it gives a
  way to allow user to do more specified config on lz4 and zstd
  compression level, then f2fs compression can provide higher compress
  ratio.

  checkpoint_merge creates a kernel daemon and makes it to merge
  concurrent checkpoint requests as much as possible to eliminate
  redundant checkpoint issues. Plus, we can eliminate the sluggish issue
  caused by slow checkpoint operation when the checkpoint is done in a
  process context in a cgroup having low i/o budget and cpu shares.

  Enhancements:
   - add compress level for lz4 and zstd in mount option
   - checkpoint_merge mount option
   - deprecate f2fs_trace_io

  Bug fixes:
   - flush data when enabling checkpoint back
   - handle corner cases of mount options
   - missing ACL update and lock for I_LINKABLE flag
   - attach FIEMAP_EXTENT_MERGED in f2fs_fiemap
   - fix potential deadlock in compression flow
   - fix wrong submit_io condition

  As usual, we've cleaned up many code flows and fixed minor bugs"

* tag 'f2fs-for-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (32 commits)
  Documentation: f2fs: fix typo s/automaic/automatic
  f2fs: give a warning only for readonly partition
  f2fs: don't grab superblock freeze for flush/ckpt thread
  f2fs: add ckpt_thread_ioprio sysfs node
  f2fs: introduce checkpoint_merge mount option
  f2fs: relocate inline conversion from mmap() to mkwrite()
  f2fs: fix a wrong condition in __submit_bio
  f2fs: remove unnecessary initialization in xattr.c
  f2fs: fix to avoid inconsistent quota data
  f2fs: flush data when enabling checkpoint back
  f2fs: deprecate f2fs_trace_io
  f2fs: Remove readahead collision detection
  f2fs: remove unused stat_{inc, dec}_atomic_write
  f2fs: introduce sb_status sysfs node
  f2fs: fix to use per-inode maxbytes
  f2fs: compress: fix potential deadlock
  libfs: unexport generic_ci_d_compare() and generic_ci_d_hash()
  f2fs: fix to set/clear I_LINKABLE under i_lock
  f2fs: fix null page reference in redirty_blocks
  f2fs: clean up post-read processing
  ...
2021-02-21 10:09:32 -08:00
Linus Torvalds
3c8f504b3a ACPI updates for 5.12-rc1
- Update ACPICA code in the kernel to upstream revision 20201113
    with changes as follows:
 
    * Remove the MTMR (Mid-Timer) table (Al Stone).
    * Remove the VRTC table (Al Stone).
    * Add type casts for string functions (Bob Moore).
    * Update all copyrights to 2021 (Bob Moore).
    * Fix exception code class checks (Maximilian Luz).
    * Clean up exception code class checks (Maximilian Luz).
    * Fix -Wfallthrough (Nick Desaulniers).
 
  - Add support for setting and reading global profile of the platform
    along with documentation (Mark Pearson, Hans de Goede, Jiaxun Yang).
 
  - Fix fwnode properties matching and clean up the code handling
    device properties and its documentation (Rafael Wysocki, Andy
    Shevchenko).
 
  - Clean up ACPI-based device enumeration code (Rafael Wysocki).
 
  - Clean up the CPPC support library code (Ionela Voinescu).
 
  - Clean up the APEI support code (Yang Li, Yazen Ghannam).
 
  - Update GPIO-related properties documentation (Flavio Suligoi).
 
  - Consolidate and clean up the printing of messages in several
    places (Rafael Wysocki).
 
  - Fix error code path in configfs handling code (Qinglang Miao).
 
  - Use DEVICE_ATTR_<RW|RO|WO> macros where applicable (Dwaipayan Ray).
 
  - Replace tests for !ACPI_FAILURE with tests for ACPI_SUCCESS in
    multiple places (Bjorn Helgaas).
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Merge tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20210105, fix and clean up the handling of device properties, add
  support for setting global profile of the platform, clean up device
  enumeration, the CPPC library, the APEI support and more, update the
  documentation, consolidate the printing of messages in several places
  and make assorted janitorial changes.

  Specifics:

   - Update ACPICA code in the kernel to upstream revision 20201113 with
     changes as follows:

      * Remove the MTMR (Mid-Timer) table (Al Stone).
      * Remove the VRTC table (Al Stone).
      * Add type casts for string functions (Bob Moore).
      * Update all copyrights to 2021 (Bob Moore).
      * Fix exception code class checks (Maximilian Luz).
      * Clean up exception code class checks (Maximilian Luz).
      * Fix -Wfallthrough (Nick Desaulniers).

   - Add support for setting and reading global profile of the platform
     along with documentation (Mark Pearson, Hans de Goede, Jiaxun
     Yang).

   - Fix fwnode properties matching and clean up the code handling
     device properties and its documentation (Rafael Wysocki, Andy
     Shevchenko).

   - Clean up ACPI-based device enumeration code (Rafael Wysocki).

   - Clean up the CPPC support library code (Ionela Voinescu).

   - Clean up the APEI support code (Yang Li, Yazen Ghannam).

   - Update GPIO-related properties documentation (Flavio Suligoi).

   - Consolidate and clean up the printing of messages in several places
     (Rafael Wysocki).

   - Fix error code path in configfs handling code (Qinglang Miao).

   - Use DEVICE_ATTR_<RW|RO|WO> macros where applicable (Dwaipayan Ray).

   - Replace tests for !ACPI_FAILURE with tests for ACPI_SUCCESS in
     multiple places (Bjorn Helgaas)"

* tag 'acpi-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
  ACPI: property: Satisfy kernel doc validator (part 2)
  ACPI: property: Satisfy kernel doc validator (part 1)
  ACPI: property: Make acpi_node_prop_read() static
  ACPI: property: Remove dead code
  ACPI: property: Fix fwnode string properties matching
  ACPI: OSL: Clean up printing messages
  ACPI: OSL: Rework acpi_check_resource_conflict()
  ACPI: APEI: ERST: remove unneeded semicolon
  ACPI: thermal: Clean up printing messages
  ACPI: video: Clean up printing messages
  ACPI: button: Clean up printing messages
  ACPI: battery: Clean up printing messages
  ACPI: AC: Clean up printing messages
  ACPI: bus: Drop ACPI_BUS_COMPONENT which is not used any more
  ACPI: utils: Clean up printing messages
  ACPI: scan: Clean up printing messages
  ACPI: bus: Clean up printing messages
  ACPI: PM: Clean up printing messages
  ACPI: power: Clean up printing messages
  ACPI: APEI: Add is_generic_error() to identify GHES sources
  ...
2021-02-20 21:50:59 -08:00
Linus Torvalds
02f9fc286e Power management updates for 5.12-rc1
- Add new power capping facility called DTPM (Dynamic Thermal Power
    Management), based on the existing power capping framework, to
    allow aggregate power constraints to be applied to sets of devices
    in a distributed manner, along with a CPU backend driver based on
    the Energy Model (Daniel Lezcano, Dan Carpenter, Colin Ian King).
 
  - Add AlderLake Mobile support to the Intel RAPL power capping
    driver and make it use the topology interface when laying out the
    system topology (Zhang Rui, Yunfeng Ye).
 
  - Drop the cpufreq tango driver belonging to a platform that is not
    supported any more (Arnd Bergmann).
 
  - Drop the redundant CPUFREQ_STICKY and CPUFREQ_PM_NO_WARN cpufreq
    driver flags (Viresh Kumar).
 
  - Update cpufreq drivers:
 
    * Fix max CPU frequency discovery in the intel_pstate driver and
      make janitorial changes in it (Chen Yu, Rafael Wysocki, Nigel
      Christian).
 
    * Fix resource leaks in the brcmstb-avs-cpufreq driver (Christophe
      JAILLET).
 
    * Make the tegra20 driver use the resource-managed API (Dmitry
      Osipenko).
 
    * Enable boost support in the qcom-hw driver (Shawn Guo).
 
  - Update the operating performance points (OPP) framework:
 
    * Clean up the OPP core (Dmitry Osipenko, Viresh Kumar).
 
    * Extend the OPP API by adding new helpers to it (Dmitry Osipenko,
      Viresh Kumar).
 
    * Allow required OPPs to be used for devfreq devices and update
      the devfreq governor code accordingly (Saravana Kannan).
 
    * Prepare the framework for introducing new dev_pm_opp_set_opp()
      helper (Viresh Kumar).
 
    * Drop dev_pm_opp_set_bw() and update related drivers (Viresh
      Kumar).
 
    * Allow lazy linking of required-OPPs (Viresh Kumar).
 
  - Simplify and clean up devfreq somewhat (Lukasz Luba, Yang Li,
    Pierre Kuo).
 
  - Update the generic power domains (genpd) framework:
 
    * Use device's next wakeup to determine domain idle state (Lina
      Iyer).
 
    * Improve initialization and debug (Dmitry Osipenko).
 
    * Simplify computations (Abaci Team).
 
  - Make janitorial changes in the core code handling system sleep
    and PM-runtime (Bhaskar Chowdhury, Bjorn Helgaas, Rikard Falkeborn,
    Zqiang).
 
  - Update the MAINTAINERS entry for the exynos cpuidle driver and
    drop DEBUG definition from intel_idle (Krzysztof Kozlowski, Tom
    Rix).
 
  - Extend the PM clock layer to cover clocks that must sleep (Nicolas
    Pitre).
 
  - Update the cpupower utility:
 
    * Update cpupower command, add support for AMD family 0x19 and clean
      up the code to remove many of the family checks to make future
      family updates easier (Nathan Fontenot, Robert Richter).
 
    * Add Makefile dependencies for install targets to allow building
      cpupower in parallel rather than serially (Ivan Babrou).
 
  - Make janitorial changes in power management Kconfig (Lukasz Luba).
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Merge tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These add a new power capping facility allowing aggregate power
  constraints to be applied to sets of devices in a distributed manner,
  add a new CPU ID to the RAPL power capping driver and improve it, drop
  a cpufreq driver belonging to a platform that is not supported any
  more, drop two redundant cpufreq driver flags, update cpufreq drivers
  (intel_pstate, brcmstb-avs, qcom-hw), update the operating performance
  points (OPP) framework (code cleanups, new helpers, devfreq-related
  modifications), clean up devfreq, extend the PM clock layer, update
  the cpupower utility and make assorted janitorial changes.

  Specifics:

   - Add new power capping facility called DTPM (Dynamic Thermal Power
     Management), based on the existing power capping framework, to
     allow aggregate power constraints to be applied to sets of devices
     in a distributed manner, along with a CPU backend driver based on
     the Energy Model (Daniel Lezcano, Dan Carpenter, Colin Ian King).

   - Add AlderLake Mobile support to the Intel RAPL power capping driver
     and make it use the topology interface when laying out the system
     topology (Zhang Rui, Yunfeng Ye).

   - Drop the cpufreq tango driver belonging to a platform that is not
     supported any more (Arnd Bergmann).

   - Drop the redundant CPUFREQ_STICKY and CPUFREQ_PM_NO_WARN cpufreq
     driver flags (Viresh Kumar).

   - Update cpufreq drivers:

      * Fix max CPU frequency discovery in the intel_pstate driver and
        make janitorial changes in it (Chen Yu, Rafael Wysocki, Nigel
        Christian).

      * Fix resource leaks in the brcmstb-avs-cpufreq driver (Christophe
        JAILLET).

      * Make the tegra20 driver use the resource-managed API (Dmitry
        Osipenko).

      * Enable boost support in the qcom-hw driver (Shawn Guo).

   - Update the operating performance points (OPP) framework:

      * Clean up the OPP core (Dmitry Osipenko, Viresh Kumar).

      * Extend the OPP API by adding new helpers to it (Dmitry Osipenko,
        Viresh Kumar).

      * Allow required OPPs to be used for devfreq devices and update
        the devfreq governor code accordingly (Saravana Kannan).

      * Prepare the framework for introducing new dev_pm_opp_set_opp()
        helper (Viresh Kumar).

      * Drop dev_pm_opp_set_bw() and update related drivers (Viresh
        Kumar).

      * Allow lazy linking of required-OPPs (Viresh Kumar).

   - Simplify and clean up devfreq somewhat (Lukasz Luba, Yang Li,
     Pierre Kuo).

   - Update the generic power domains (genpd) framework:

      * Use device's next wakeup to determine domain idle state (Lina
        Iyer).

      * Improve initialization and debug (Dmitry Osipenko).

      * Simplify computations (Abaci Team).

   - Make janitorial changes in the core code handling system sleep and
     PM-runtime (Bhaskar Chowdhury, Bjorn Helgaas, Rikard Falkeborn,
     Zqiang).

   - Update the MAINTAINERS entry for the exynos cpuidle driver and drop
     DEBUG definition from intel_idle (Krzysztof Kozlowski, Tom Rix).

   - Extend the PM clock layer to cover clocks that must sleep (Nicolas
     Pitre).

   - Update the cpupower utility:

      * Update cpupower command, add support for AMD family 0x19 and
        clean up the code to remove many of the family checks to make
        future family updates easier (Nathan Fontenot, Robert Richter).

      * Add Makefile dependencies for install targets to allow building
        cpupower in parallel rather than serially (Ivan Babrou).

   - Make janitorial changes in power management Kconfig (Lukasz Luba)"

* tag 'pm-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits)
  MAINTAINERS: cpuidle: exynos: include header in file pattern
  powercap: intel_rapl: Use topology interface in rapl_init_domains()
  powercap: intel_rapl: Use topology interface in rapl_add_package()
  PM: sleep: Constify static struct attribute_group
  PM: Kconfig: remove unneeded "default n" options
  PM: EM: update Kconfig description and drop "default n" option
  cpufreq: Remove unused flag CPUFREQ_PM_NO_WARN
  cpufreq: Remove CPUFREQ_STICKY flag
  PM / devfreq: Add required OPPs support to passive governor
  PM / devfreq: Cache OPP table reference in devfreq
  OPP: Add function to look up required OPP's for a given OPP
  PM / devfreq: rk3399_dmc: Remove unneeded semicolon
  opp: Replace ENOTSUPP with EOPNOTSUPP
  opp: Fix "foo * bar" should be "foo *bar"
  opp: Don't ignore clk_get() errors other than -ENOENT
  opp: Update bandwidth requirements based on scaling up/down
  opp: Allow lazy-linking of required-opps
  opp: Remove dev_pm_opp_set_bw()
  devfreq: tegra30: Migrate to dev_pm_opp_set_opp()
  drm: msm: Migrate to dev_pm_opp_set_opp()
  ...
2021-02-20 21:42:18 -08:00
Linus Torvalds
5d99aa093b Staging/IIO driver patches for 5.12-rc1
Here is the "big" set of staging and IIO driver patches for 5.12-rc1.
 
 Nothing really huge in here, the number of staging tree patches has gone
 down for a bit, maybe there's only so much churn to happen in here at
 the moment.
 
 The IIO changes are:
 	- new drivers
 	- new DT bindings
 	- new iio driver features
 with full details in the shortlog.
 
 The staging driver patches are just a lot of tiny coding style cleanups,
 along with some semi-larger hikey driver cleanups as those are _almost_
 good enough to get out of the staging tree, but will probably have to
 wait until 5.13 to have happen.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO driver updates from Greg KH:
 "Here is the "big" set of staging and IIO driver patches for 5.12-rc1.

  Nothing really huge in here, the number of staging tree patches has
  gone down for a bit, maybe there's only so much churn to happen in
  here at the moment.

  The IIO changes are:

   - new drivers

   - new DT bindings

   - new iio driver features

  with full details in the shortlog.

  The staging driver patches are just a lot of tiny coding style
  cleanups, along with some semi-larger hikey driver cleanups as those
  are _almost_ good enough to get out of the staging tree, but will
  probably have to wait until 5.13 to have happen.

  All of these have been in linux-next with no reported issues"

* tag 'staging-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (189 commits)
  staging: hikey9xx: Fix alignment of function parameters
  staging: greybus: Fixed a misspelling in hid.c
  staging: wimax/i2400m: fix some byte order issues found by sparse
  staging: wimax: i2400m: fix some incorrect type warnings
  staging: greybus: minor code style fix
  staging:wlan-ng: use memdup_user instead of kmalloc/copy_from_user
  staging:r8188eu: use IEEE80211_FCTL_* kernel definitions
  staging: rtl8192e: remove multiple blank lines
  staging: greybus: Fixed alignment issue in hid.c
  staging: wfx: remove unused included header files
  staging: nvec: minor coding style fix
  staging: wimax: Fix some coding style problem
  staging: fbtft: add tearing signal detect
  staging: vt6656: Fixed issue with alignment in rf.c
  staging: qlge: Remove duplicate word in comment
  staging: rtl8723bs: remove obsolete commented out code
  staging: rtl8723bs: fix function comments to follow kernel-doc
  staging: wfx: avoid defining array of flexible struct
  staging: rtl8723bs: Replace one-element array with flexible-array member in struct ndis_80211_var_ie
  staging: Replace lkml.org links with lore
  ...
2021-02-20 21:36:51 -08:00
Linus Torvalds
780607b973 USB/Thunderbolt patches for 5.12-rc1
Here is the big set of USB and Thunderbolt driver changes for 5.12-rc1.
 
 It's been an active set of development in these subsystems for the past
 few months:
 	- loads of typec features added for new hardware
 	- xhci features and bugfixes
 	- dwc3 features added for more hardware support
 	- dwc2 fixes and new hardware support
 	- cdns3 driver updates for more hardware support
 	- gadget driver cleanups and minor fixes
 	- usb-serial fixes, new driver, and more devices supported
 	- thunderbolt feature additions for new hardware
 	- lots of other tiny fixups and additions
 The chrome driver changes are in here as well, as they depended on some
 of the typec changes, and the maintainer acked them.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for
  5.12-rc1.

  It's been an active set of development in these subsystems for the
  past few months:

   - loads of typec features added for new hardware

   - xhci features and bugfixes

   - dwc3 features added for more hardware support

   - dwc2 fixes and new hardware support

   - cdns3 driver updates for more hardware support

   - gadget driver cleanups and minor fixes

   - usb-serial fixes, new driver, and more devices supported

   - thunderbolt feature additions for new hardware

   - lots of other tiny fixups and additions

  The chrome driver changes are in here as well, as they depended on
  some of the typec changes, and the maintainer acked them.

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

* tag 'usb-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (300 commits)
  dt-bindings: usb: mediatek: musb: add mt8516 compatbile
  dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623
  dt-bindings: usb: mtk-xhci: add optional assigned clock properties
  Documentation: connector: Update the description of sink-vdos
  usb: misc: usb3503: Fix logic in usb3503_init()
  dt-bindings: usb: usb-device: fix typo in required properties
  usb: Replace lkml.org links with lore
  dt-bindings: usb: dwc3: add description for rk3328
  dt-bindings: usb: convert rockchip,dwc3.txt to yaml
  usb: quirks: add quirk to start video capture on ELMO L-12F document camera reliable
  USB: quirks: sort quirk entries
  USB: serial: drop bogus to_usb_serial_port() checks
  USB: serial: make remove callback return void
  USB: serial: drop if with an always false condition
  usb: gadget: Assign boolean values to a bool variable
  usb: typec: tcpm: Get Sink VDO from fwnode
  dt-bindings: connector: Add SVDM VDO properties
  usb: typec: displayport: Fill the negotiated SVDM Version in the header
  usb: typec: ucsi: Determine common SVDM Version
  usb: typec: tcpm: Determine common SVDM Version
  ...
2021-02-20 21:32:37 -08:00
Linus Torvalds
e4286926ab TTY/Serial driver changes for 5.12-rc1
Here is the big set of tty/serial driver changes for 5.12-rc1.
 
 Nothing huge, just lots of good cleanups and additions:
 	- Your n_tty line discipline cleanups
 	- vt core cleanups and reworks to make the code more "modern"
 	- stm32 driver additions
 	- tty led support added to the tty core and led layer
 	- minor serial driver fixups and additions
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big set of tty/serial driver changes for 5.12-rc1.

  Nothing huge, just lots of good cleanups and additions:

   - n_tty line discipline cleanups

   - vt core cleanups and reworks to make the code more "modern"

   - stm32 driver additions

   - tty led support added to the tty core and led layer

   - minor serial driver fixups and additions

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

* tag 'tty-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits)
  serial: core: Remove BUG_ON(in_interrupt()) check
  vt_ioctl: Remove in_interrupt() check
  dt-bindings: serial: imx: Switch to my personal address
  vt: keyboard, use new API for keyboard_tasklet
  serial: stm32: improve platform_get_irq condition handling in init_port
  serial: ifx6x60: Remove driver for deprecated platform
  tty: fix up iterate_tty_read() EOVERFLOW handling
  tty: fix up hung_up_tty_read() conversion
  tty: fix up hung_up_tty_write() conversion
  tty: teach the n_tty ICANON case about the new "cookie continuations" too
  tty: teach n_tty line discipline about the new "cookie continuations"
  tty: clean up legacy leftovers from n_tty line discipline
  tty: implement read_iter
  tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer
  serial: remove sirf prima/atlas driver
  serial: mxs-auart: Remove <asm/cacheflush.h>
  serial: mxs-auart: Remove serial_mxs_probe_dt()
  serial: fsl_lpuart: Use of_device_get_match_data()
  dt-bindings: serial: renesas,hscif: Add r8a779a0 support
  tty: serial: Drop unused efm32 serial driver
  ...
2021-02-20 21:28:04 -08:00
Linus Torvalds
e767b3530a ARM: SoC drivers for v5.12
Updates for SoC specific drivers include a few subsystems that
 have their own maintainers but send them through the soc tree:
 
 SCMI firmware:
  - add support for a completion interrupt
 
 Reset controllers:
  - new driver for BCM4908
  - new devm_reset_control_get_optional_exclusive_released()
    function
 
 Memory controllers:
  - Renesas RZ/G2 support
  - Tegra124 interconnect support
  - Allow more drivers to be loadable modules
 
 TEE/optee firmware:
  - minor code cleanup
 
 The other half of this is SoC specific drivers that do not
 belong into any other subsystem, most of them living in
 drivers/soc:
 
  - Allwinner/sunxi power management work
  - Allwinner H616 support
 
  - ASpeed AST2600 system identification support
 
  - AT91 SAMA7G5 SoC ID driver
  - AT91 SoC driver cleanups
 
  - Broadcom BCM4908 power management bus support
 
  - Marvell mbus cleanups
 
  - Mediatek MT8167 power domain support
 
  - Qualcomm socinfo driver support for PMIC
  - Qualcomm SoC identification for many more products
 
  - TI Keystone driver cleanups for PRUSS and elsewhere
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Updates for SoC specific drivers include a few subsystems that have
  their own maintainers but send them through the soc tree:

  SCMI firmware:
   - add support for a completion interrupt

  Reset controllers:
   - new driver for BCM4908
   - new devm_reset_control_get_optional_exclusive_released() function

  Memory controllers:
   - Renesas RZ/G2 support
   - Tegra124 interconnect support
   - Allow more drivers to be loadable modules

  TEE/optee firmware:
   - minor code cleanup

  The other half of this is SoC specific drivers that do not belong into
  any other subsystem, most of them living in drivers/soc:

   - Allwinner/sunxi power management work
   - Allwinner H616 support

   - ASpeed AST2600 system identification support

   - AT91 SAMA7G5 SoC ID driver
   - AT91 SoC driver cleanups

   - Broadcom BCM4908 power management bus support

   - Marvell mbus cleanups

   - Mediatek MT8167 power domain support

   - Qualcomm socinfo driver support for PMIC
   - Qualcomm SoC identification for many more products

   - TI Keystone driver cleanups for PRUSS and elsewhere"

* tag 'arm-drivers-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (89 commits)
  soc: aspeed: socinfo: Add new systems
  soc: aspeed: snoop: Add clock control logic
  memory: tegra186-emc: Replace DEFINE_SIMPLE_ATTRIBUTE with DEFINE_DEBUGFS_ATTRIBUTE
  memory: samsung: exynos5422-dmc: Correct function names in kerneldoc
  memory: ti-emif-pm: Drop of_match_ptr from of_device_id table
  optee: simplify i2c access
  drivers: soc: atmel: fix type for same7
  tee: optee: remove need_resched() before cond_resched()
  soc: qcom: ocmem: don't return NULL in of_get_ocmem
  optee: sync OP-TEE headers
  tee: optee: fix 'physical' typos
  drivers: optee: use flexible-array member instead of zero-length array
  tee: fix some comment typos in header files
  soc: ti: k3-ringacc: Use of_device_get_match_data()
  soc: ti: pruss: Refactor the CFG sub-module init
  soc: mediatek: pm-domains: Don't print an error if child domain is deferred
  soc: mediatek: pm-domains: Add domain regulator supply
  dt-bindings: power: Add domain regulator supply
  soc: mediatek: cmdq: Remove cmdq_pkt_flush()
  soc: mediatek: pm-domains: Add support for mt8167
  ...
2021-02-20 18:42:28 -08:00
Linus Torvalds
82851fce61 ARM: SoC devicetree updates for v5.12
After the last release contained a surprising amount of new 32-bit
 machines, this time two thirds of the code changes are for 64-bit.
 
 The usual updates to existing files include:
 
  - Device tree compiler warning fixes for Berlin, Renesas, SoCFPGA,
    nomadik, stm32, Allwinner, TI Keystone
 
  - Support for additional devices on existing machines on Renesas, SoCFPGA,
    at91, hisilicon, OMAP, Tegra, TI K3, Allwinner, Broadcom, ux500,
    Mediatek, Marvell Armada, Marvell MMP, ZynqMP, AMLogic, Qualcomm,
    i.MX, Layerscape, Actions, ASpeed, Toshiba
 
  - Cleanups and minor fixes for Renesas, at91, mstar, ux500, Samsung,
    stm32, Tegra, Broadcom, Mediatek, Marvell MMP, AMLogic, Qualcomm,
    i.MX, Rockchip, ASpeed, Zynq
 
 Only three new SoCs this time, but a number of boards across:
 
 Renesas:
  - Two Beacon EmbeddedWorks boards (RZ/G2H and RZ/G2N based)
 
 Intel SoCFPGA:
  - eASIC N5X board (N5X)
 
 ST-Ericsson Ux500:
  - Samsung GT-I9070 (Janice) phone (u8500)
 
 TI OMAP:
  - MYIR Tech Limited development board (AM335X)
 
 Allwinner/sunxi:
  - SL631 Action Camera (V3)
  - PineTab Early Adopter tablet (A64)
 
 Broadcom:
  - BCM4906/BCM4908 networking chip
  - Netgear R8000P router (BCM5906)
 
 AMLogic:
  - Hardkernel ODROID-HC4 development board (SM1)
  - Beelink GS-King-X TV Box (S922X)
 
 Qualcomm:
  - Snapdragon 888 / SM8350 high-end phone SoC
  - Qualcomm SDX55 5G modem as standalone SoC
  - Snapdragon MTP reference board (SM8350)
  - Snapdragon MTP reference board (SDX55)
  - Sony Kitakami phones: Xperia Z3+/Z4/Z5 (APQ8094)
  - Alcatel Idol 3 phone (MSM8916)
  - ASUS Zenfone 2 Laser phone (MSM8916)
  - BQ Aquaris X5 aka Longcheer L8910 phone (MSM8916)
  - OnePlus6 phone (SDM845)
  - OnePlus6T phone (SDM845)
  - Alfa Network AP120C-AC access point (IPQ4018)
 
 NXP i.MX6 (32-bit):
  - Plymovent BAS base system controller for filter systems (imx6dl)
  - Protonic MVT industrial touchscreen terminals (imx6dl)
  - Protonic PRTI6G reference board (imx6ul)
  - Kverneland UT1, UT1Q, UT1P, TGO agricultural terminals (imx6q/dl/qp)
 
 NXP i.MX8 (64-bit)
  - Beacon i.MX8M Nano development kit (imx8mn)
  - Boundary Devices i.MX8MM Nitrogen SBC (imx8mm)
  - Gateworks Venice i.MX 8M Mini Development Kits (imx8mm)
  - phyBOARD-Pollux-i.MX8MP (imx8mp)
  - Purism Librem5 Evergreen phone (imx8mp)
  - Kontron SMARC-sAL28 system-on-module(imx8mp)
 
 Rockchip:
  - NanoPi M4B Single-board computer (RK3399)
  - Radxa Rock Pi E router SBC (RK3328)
 
 ASpeed:
  - Ampere Mt. Jade, a BMC for an x86 server (AST2500)
  - IBM Everest, a BMC for a Power10 server (AST2600)
  - Supermicro x11spi, a BMC for an ARM server (AST2500)
 
 Zynq:
  - Ebang EBAZ4205, FPGA board (Zynq-7000)
  - ZynqMP zcu104 revC reference platform (ZynqMP)
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-dt-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC devicetree updates from Arnd Bergmann:
 "After the last release contained a surprising amount of new 32-bit
  machines, this time two thirds of the code changes are for 64-bit.

  The usual updates to existing files include:

   - Device tree compiler warning fixes for Berlin, Renesas, SoCFPGA,
     nomadik, stm32, Allwinner, TI Keystone

   - Support for additional devices on existing machines on Renesas,
     SoCFPGA, at91, hisilicon, OMAP, Tegra, TI K3, Allwinner, Broadcom,
     ux500, Mediatek, Marvell Armada, Marvell MMP, ZynqMP, AMLogic,
     Qualcomm, i.MX, Layerscape, Actions, ASpeed, Toshiba

   - Cleanups and minor fixes for Renesas, at91, mstar, ux500, Samsung,
     stm32, Tegra, Broadcom, Mediatek, Marvell MMP, AMLogic, Qualcomm,
     i.MX, Rockchip, ASpeed, Zynq

  Only three new SoCs this time, but a number of boards across:

  Renesas:
   - Two Beacon EmbeddedWorks boards (RZ/G2H and RZ/G2N based)

  Intel SoCFPGA:
   - eASIC N5X board (N5X)

  ST-Ericsson Ux500:
   - Samsung GT-I9070 (Janice) phone (u8500)

  TI OMAP:
   - MYIR Tech Limited development board (AM335X)

  Allwinner/sunxi:
   - SL631 Action Camera (V3)
   - PineTab Early Adopter tablet (A64)

  Broadcom:
   - BCM4906 networking chip
   - Netgear R8000P router (BCM4906)

  AMLogic:
   - Hardkernel ODROID-HC4 development board (SM1)
   - Beelink GS-King-X TV Box (S922X)

  Qualcomm:
   - Snapdragon 888 / SM8350 high-end phone SoC
   - Qualcomm SDX55 5G modem as standalone SoC
   - Snapdragon MTP reference board (SM8350)
   - Snapdragon MTP reference board (SDX55)
   - Sony Kitakami phones: Xperia Z3+/Z4/Z5 (APQ8094)
   - Alcatel Idol 3 phone (MSM8916)
   - ASUS Zenfone 2 Laser phone (MSM8916)
   - BQ Aquaris X5 aka Longcheer L8910 phone (MSM8916)
   - OnePlus6 phone (SDM845)
   - OnePlus6T phone (SDM845)
   - Alfa Network AP120C-AC access point (IPQ4018)

  NXP i.MX6 (32-bit):
   - Plymovent BAS base system controller for filter systems (imx6dl)
   - Protonic MVT industrial touchscreen terminals (imx6dl)
   - Protonic PRTI6G reference board (imx6ul)
   - Kverneland UT1, UT1Q, UT1P, TGO agricultural terminals (imx6q/dl/qp)

  NXP i.MX8 (64-bit)
   - Beacon i.MX8M Nano development kit (imx8mn)
   - Boundary Devices i.MX8MM Nitrogen SBC (imx8mm)
   - Gateworks Venice i.MX 8M Mini Development Kits (imx8mm)
   - phyBOARD-Pollux-i.MX8MP (imx8mp)
   - Purism Librem5 Evergreen phone (imx8mp)
   - Kontron SMARC-sAL28 system-on-module(imx8mp)

  Rockchip:
   - NanoPi M4B Single-board computer (RK3399)
   - Radxa Rock Pi E router SBC (RK3328)

  ASpeed:
   - Ampere Mt. Jade, a BMC for an x86 server (AST2500)
   - IBM Everest, a BMC for a Power10 server (AST2600)
   - Supermicro x11spi, a BMC for an ARM server (AST2500)

  Zynq:
   - Ebang EBAZ4205, FPGA board (Zynq-7000)
   - ZynqMP zcu104 revC reference platform (ZynqMP)"

* tag 'arm-dt-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (584 commits)
  ARM: dts: aspeed: align GPIO hog names with dtschema
  ARM: dts: aspeed: fix PCA95xx GPIO expander properties on Portwell
  dt-bindings: spi: zynq: Convert Zynq QSPI binding to yaml
  arm: dts: visconti: Add DT support for Toshiba Visconti5 GPIO driver
  ARM: dts: aspeed: ast2600evb: Add enable ehci and uhci
  ARM: dts: aspeed: mowgli: Add i2c rtc device
  ARM: dts: aspeed: amd-ethanolx: Enable secondary LPC snooping address
  dt-bindings: arm: xilinx: Add missing Zturn boards
  ARM: dts: ebaz4205: add pinctrl entries for switches
  ARM: dts: add Ebang EBAZ4205 device tree
  dt-bindings: arm: add Ebang EBAZ4205 board
  dt-bindings: add ebang vendor prefix
  ARM: dts: aspeed: Add Everest BMC machine
  ARM: dts: aspeed: inspur-fp5280g2: Add ipsps1 driver
  ARM: dts: aspeed: inspur-fp5280g2: Add GPIO line names
  ARM: dts: aspeed: Add Supermicro x11spi BMC machine
  ARM: dts: aspeed: g220a: Fix some gpio
  ARM: dts: aspeed: g220a: Enable ipmb
  ARM: dts: aspeed: rainier: Add eMMC clock phase compensation
  ARM: dts: aspeed: Add LCLK to lpc-snoop
  ...
2021-02-20 18:34:53 -08:00
Linus Torvalds
584ce3c9b4 SoC platform removal
There are a lot of platforms that have not seen any interesting code
 changes in the past five years or more.
 
 I made a list and asked around which ones are no longer in use [1], and
 received confirmation about six ARM platforms and the TI C6x architecture
 that have all reached the end of their life upstream, with no known
 users remaining:
 
  - efm32 -- added in 2011, first Cortex-M, no notable changes after 2013
  - picoxcell -- added in 2011, abandoned after 2012 acquisition
  - prima2 -- added in 20111, no notable changes since 2015
  - tango -- added in 2015, sporadic changes until 2017, but abandoned
  - u300 -- added in 2009, no notable changes since 2013
  - zx --added in 2015 for both 32, 2017 for 64 bit, no notable changes
  - arch/c6x -- added in 2011, but work stalled soon after that
 
 A number of other platforms on the original list turned out to still
 have users. In some cases there are out-of-tree patches and users
 that plan to contribute them in the future, in other cases the code
 is complete and works reliably.
 
 [1] https://lore.kernel.org/lkml/CAK8P3a2DZ8xQp7R=H=wewHnT2=a_=M53QsZOueMVEf7tOZLKNg@mail.gmail.com/
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-platform-removal-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform removals from Arnd Bergmann:
 "There are a lot of platforms that have not seen any interesting code
  changes in the past five years or more.

  I made a list and asked around which ones are no longer in use, and
  received confirmation about six ARM platforms and the TI C6x
  architecture that have all reached the end of their life upstream,
  with no known users remaining:

   - efm32 - added in 2011, first Cortex-M, no notable changes after 2013

   - picoxcell - added in 2011, abandoned after 2012 acquisition

   - prima2 - added in 20111, no notable changes since 2015

   - tango - added in 2015, sporadic changes until 2017, but abandoned

   - u300 - added in 2009, no notable changes since 2013

   - zx - added in 2015 for both 32, 2017 for 64 bit, no notable changes

   - arch/c6x - added in 2011, but work stalled soon after that

  A number of other platforms on the original list turned out to still
  have users. In some cases there are out-of-tree patches and users that
  plan to contribute them in the future, in other cases the code is
  complete and works reliably"

Link: https://lore.kernel.org/lkml/CAK8P3a2DZ8xQp7R=H=wewHnT2=a_=M53QsZOueMVEf7tOZLKNg@mail.gmail.com/

* tag 'arm-platform-removal-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: remove u300 platform
  ARM: remove tango platform
  ARM: remove zte zx platform
  ARM: remove sirf prima2/atlas platforms
  c6x: remove architecture
  MAINTAINERS: Remove deleted platform efm32
  ARM: drop efm32 platform
  ARM: Remove PicoXcell platform support
  ARM: dts: Remove PicoXcell platforms
2021-02-20 18:16:30 -08:00
Linus Torvalds
51e6d17809 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
 "Here is what we have this merge window:

   1) Support SW steering for mlx5 Connect-X6Dx, from Yevgeny Kliteynik.

   2) Add RSS multi group support to octeontx2-pf driver, from Geetha
      Sowjanya.

   3) Add support for KS8851 PHY. From Marek Vasut.

   4) Add support for GarfieldPeak bluetooth controller from Kiran K.

   5) Add support for half-duplex tcan4x5x can controllers.

   6) Add batch skb rx processing to bcrm63xx_enet, from Sieng Piaw
      Liew.

   7) Rework RX port offload infrastructure, particularly wrt, UDP
      tunneling, from Jakub Kicinski.

   8) Add BCM72116 PHY support, from Florian Fainelli.

   9) Remove Dsa specific notifiers, they are unnecessary. From Vladimir
      Oltean.

  10) Add support for picosecond rx delay in dwmac-meson8b chips. From
      Martin Blumenstingl.

  11) Support TSO on xfrm interfaces from Eyal Birger.

  12) Add support for MP_PRIO to mptcp stack, from Geliang Tang.

  13) Support BCM4908 integrated switch, from Rafał Miłecki.

  14) Support for directly accessing kernel module variables via module
      BTF info, from Andrii Naryiko.

  15) Add DASH (esktop and mobile Architecture for System Hardware)
      support to r8169 driver, from Heiner Kallweit.

  16) Add rx vlan filtering to dpaa2-eth, from Ionut-robert Aron.

  17) Add support for 100 base0x SFP devices, from Bjarni Jonasson.

  18) Support link aggregation in DSA, from Tobias Waldekranz.

  19) Support for bitwidse atomics in bpf, from Brendan Jackman.

  20) SmartEEE support in at803x driver, from Russell King.

  21) Add support for flow based tunneling to GTP, from Pravin B Shelar.

  22) Allow arbitrary number of interconnrcts in ipa, from Alex Elder.

  23) TLS RX offload for bonding, from Tariq Toukan.

  24) RX decap offklload support in mac80211, from Felix Fietkou.

  25) devlink health saupport in octeontx2-af, from George Cherian.

  26) Add TTL attr to SCM_TIMESTAMP_OPT_STATS, from Yousuk Seung

  27) Delegated actionss support in mptcp, from Paolo Abeni.

  28) Support receive timestamping when doin zerocopy tcp receive. From
      Arjun Ray.

  29) HTB offload support for mlx5, from Maxim Mikityanskiy.

  30) UDP GRO forwarding, from Maxim Mikityanskiy.

  31) TAPRIO offloading in dsa hellcreek driver, from Kurt Kanzenbach.

  32) Weighted random twos choice algorithm for ipvs, from Darby Payne.

  33) Fix netdev registration deadlock, from Johannes Berg.

  34) Various conversions to new tasklet api, from EmilRenner Berthing.

  35) Bulk skb allocations in veth, from Lorenzo Bianconi.

  36) New ethtool interface for lane setting, from Danielle Ratson.

  37) Offload failiure notifications for routes, from Amit Cohen.

  38) BCM4908 support, from Rafał Miłecki.

  39) Support several new iwlwifi chips, from Ihab Zhaika.

  40) Flow drector support for ipv6 in i40e, from Przemyslaw Patynowski.

  41) Support for mhi prrotocols, from Loic Poulain.

  42) Optimize bpf program stats.

  43) Implement RFC6056, for better port randomization, from Eric
      Dumazet.

  44) hsr tag offloading support from George McCollister.

  45) Netpoll support in qede, from Bhaskar Upadhaya.

  46) 2005/400g speed support in bonding 3ad mode, from Nikolay
      Aleksandrov.

  47) Netlink event support in mptcp, from Florian Westphal.

  48) Better skbuff caching, from Alexander Lobakin.

  49) MRP (Media Redundancy Protocol) offloading in DSA and a few
      drivers, from Horatiu Vultur.

  50) mqprio saupport in mvneta, from Maxime Chevallier.

  51) Remove of_phy_attach, no longer needed, from Florian Fainelli"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1766 commits)
  octeontx2-pf: Fix otx2_get_fecparam()
  cteontx2-pf: cn10k: Prevent harmless double shift bugs
  net: stmmac: Add PCI bus info to ethtool driver query output
  ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary
  ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable.
  ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.
  ptp: ptp_clockmatrix: Clean-up dev_*() messages.
  ptp: ptp_clockmatrix: Remove unused header declarations.
  ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
  ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.
  net: stmmac: dwmac-sun8i: Add a shutdown callback
  net: stmmac: dwmac-sun8i: Minor probe function cleanup
  net: stmmac: dwmac-sun8i: Use reset_control_reset
  net: stmmac: dwmac-sun8i: Remove unnecessary PHY power check
  net: stmmac: dwmac-sun8i: Return void from PHY unpower
  r8169: use macro pm_ptr
  net: mdio: Remove of_phy_attach()
  net: mscc: ocelot: select PACKING in the Kconfig
  net: re-solve some conflicts after net -> net-next merge
  net: dsa: tag_rtl4_a: Support also egress tags
  ...
2021-02-20 17:45:32 -08:00
Florian Fainelli
96313e1db8 net: mdio: Remove of_phy_attach()
We have no in-tree users, also update the sfp-phylink.rst documentation
to indicate that phy_attach_direct() is used instead of of_phy_attach().

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-17 13:17:49 -08:00
Michal Hocko
6ef869e064 preempt: Introduce CONFIG_PREEMPT_DYNAMIC
Preemption mode selection is currently hardcoded on Kconfig choices.
Introduce a dedicated option to tune preemption flavour at boot time,

This will be only available on architectures efficiently supporting
static calls in order not to tempt with the feature against additional
overhead that might be prohibitive or undesirable.

CONFIG_PREEMPT_DYNAMIC is automatically selected by CONFIG_PREEMPT if
the architecture provides the necessary support (CONFIG_STATIC_CALL_INLINE,
CONFIG_GENERIC_ENTRY, and provide with __preempt_schedule_function() /
__preempt_schedule_notrace_function()).

Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
[peterz: relax requirement to HAVE_STATIC_CALL]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20210118141223.123667-5-frederic@kernel.org
2021-02-17 14:12:24 +01:00
Ingo Molnar
ed3cd45f8c Linux 5.11
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Merge tag 'v5.11' into sched/core, to pick up fixes & refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-02-17 14:04:39 +01:00
David S. Miller
d489ded1a3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-02-16 17:51:13 -08:00
Pavana Sharma
7331d1d462 net: phy: Add 5GBASER interface mode
Add 5GBASE-R phy interface mode

Signed-off-by: Pavana Sharma <pavana.sharma@digi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16 14:15:12 -08:00
Pavana Sharma
4b08de9090 dt-bindings: net: Add 5GBASER phy interface
Add 5gbase-r PHY interface mode.

Signed-off-by: Pavana Sharma <pavana.sharma@digi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16 14:15:12 -08:00
David S. Miller
b8af417e4d Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:

====================
pull-request: bpf-next 2021-02-16

The following pull-request contains BPF updates for your *net-next* tree.

There's a small merge conflict between 7eeba1706e ("tcp: Add receive timestamp
support for receive zerocopy.") from net-next tree and 9cacf81f81 ("bpf: Remove
extra lock_sock for TCP_ZEROCOPY_RECEIVE") from bpf-next tree. Resolve as follows:

  [...]
                lock_sock(sk);
                err = tcp_zerocopy_receive(sk, &zc, &tss);
                err = BPF_CGROUP_RUN_PROG_GETSOCKOPT_KERN(sk, level, optname,
                                                          &zc, &len, err);
                release_sock(sk);
  [...]

We've added 116 non-merge commits during the last 27 day(s) which contain
a total of 156 files changed, 5662 insertions(+), 1489 deletions(-).

The main changes are:

1) Adds support of pointers to types with known size among global function
   args to overcome the limit on max # of allowed args, from Dmitrii Banshchikov.

2) Add bpf_iter for task_vma which can be used to generate information similar
   to /proc/pid/maps, from Song Liu.

3) Enable bpf_{g,s}etsockopt() from all sock_addr related program hooks. Allow
   rewriting bind user ports from BPF side below the ip_unprivileged_port_start
   range, both from Stanislav Fomichev.

4) Prevent recursion on fentry/fexit & sleepable programs and allow map-in-map
   as well as per-cpu maps for the latter, from Alexei Starovoitov.

5) Add selftest script to run BPF CI locally. Also enable BPF ringbuffer
   for sleepable programs, both from KP Singh.

6) Extend verifier to enable variable offset read/write access to the BPF
   program stack, from Andrei Matei.

7) Improve tc & XDP MTU handling and add a new bpf_check_mtu() helper to
   query device MTU from programs, from Jesper Dangaard Brouer.

8) Allow bpf_get_socket_cookie() helper also be called from [sleepable] BPF
   tracing programs, from Florent Revest.

9) Extend x86 JIT to pad JMPs with NOPs for helping image to converge when
   otherwise too many passes are required, from Gary Lin.

10) Verifier fixes on atomics with BPF_FETCH as well as function-by-function
    verification both related to zero-extension handling, from Ilya Leoshkevich.

11) Better kernel build integration of resolve_btfids tool, from Jiri Olsa.

12) Batch of AF_XDP selftest cleanups and small performance improvement
    for libbpf's xsk map redirect for newer kernels, from Björn Töpel.

13) Follow-up BPF doc and verifier improvements around atomics with
    BPF_FETCH, from Brendan Jackman.

14) Permit zero-sized data sections e.g. if ELF .rodata section contains
    read-only data from local variables, from Yonghong Song.

15) veth driver skb bulk-allocation for ndo_xdp_xmit, from Lorenzo Bianconi.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-16 13:14:06 -08:00
Ed Tsai
092af2eb18 Documentation: f2fs: fix typo s/automaic/automatic
Fix typo in f2fs documentation.

Signed-off-by: Ed Tsai <ed.tsai@mediatek.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2021-02-16 07:58:35 -08:00
Heiner Kallweit
93e8990c24 net: phy: rename PHY_IGNORE_INTERRUPT to PHY_MAC_INTERRUPT
Some internal PHY's have their events like link change reported by the
MAC interrupt. We have PHY_IGNORE_INTERRUPT to deal with this scenario.
I'm not too happy with this name. We don't ignore interrupts, typically
there is no interrupt exposed at a PHY level. So let's rename it to
PHY_MAC_INTERRUPT. This is in line with phy_mac_interrupt(), which is
called from the MAC interrupt handler to handle PHY events.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-15 15:20:49 -08:00
Nobuhiro Iwamatsu
e6a395061c dt-bindings: net: Add DT bindings for Toshiba Visconti TMPV7700 SoC
Add device tree bindings for ethernet controller of Toshiba Visconti
TMPV7700 SoC series.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-15 14:59:35 -08:00
Rafael J. Wysocki
a9a939cb34 Merge branches 'powercap' and 'pm-misc'
* powercap:
  powercap: intel_rapl: Use topology interface in rapl_init_domains()
  powercap: intel_rapl: Use topology interface in rapl_add_package()
  powercap/intel_rapl: add support for AlderLake Mobile
  powercap/drivers/dtpm: Fix size of object being allocated
  powercap/drivers/dtpm: Fix an IS_ERR() vs NULL check
  powercap/drivers/dtpm: Fix some missing unlock bugs
  powercap/drivers/dtpm: Fix a double shift bug
  powercap/drivers/dtpm: Fix __udivdi3 and __aeabi_uldivmod unresolved symbols
  powercap/drivers/dtpm: Add CPU energy model based support
  powercap/drivers/dtpm: Add API for dynamic thermal power management
  Documentation/powercap/dtpm: Add documentation for dtpm
  units: Add Watt units

* pm-misc:
  PM: Kconfig: remove unneeded "default n" options
  PM: EM: update Kconfig description and drop "default n" option
2021-02-15 18:50:01 +01:00
Rafael J. Wysocki
2d4eb33172 Merge branch 'acpi-messages'
* acpi-messages:
  ACPI: OSL: Clean up printing messages
  ACPI: OSL: Rework acpi_check_resource_conflict()
  ACPI: thermal: Clean up printing messages
  ACPI: video: Clean up printing messages
  ACPI: button: Clean up printing messages
  ACPI: battery: Clean up printing messages
  ACPI: AC: Clean up printing messages
  ACPI: bus: Drop ACPI_BUS_COMPONENT which is not used any more
  ACPI: utils: Clean up printing messages
  ACPI: scan: Clean up printing messages
  ACPI: bus: Clean up printing messages
  ACPI: PM: Clean up printing messages
  ACPI: power: Clean up printing messages
2021-02-15 17:04:53 +01:00
Rafael J. Wysocki
6e60afb22c Merge branches 'acpi-misc', 'acpi-cppc', 'acpi-docs', 'acpi-config' and 'acpi-apei'
* acpi-misc:
  ACPI: Test for ACPI_SUCCESS rather than !ACPI_FAILURE
  ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros

* acpi-cppc:
  ACPI: CPPC: initialise vaddr pointers to NULL
  ACPI: CPPC: add __iomem annotation to generic_comm_base pointer
  ACPI: CPPC: remove __iomem annotation for cpc_reg's address

* acpi-docs:
  Documentation: ACPI: add new rule for gpio-line-names

* acpi-config:
  ACPI: configfs: add missing check after configfs_register_default_group()

* acpi-apei:
  ACPI: APEI: ERST: remove unneeded semicolon
  ACPI: APEI: Add is_generic_error() to identify GHES sources
2021-02-15 17:04:40 +01:00
Rafael J. Wysocki
8af4d37844 Merge branches 'acpi-scan', 'acpi-properties' and 'acpi-platform'
* acpi-scan:
  ACPI: scan: Rearrange code related to acpi_get_device_data()
  ACPI: scan: Adjust white space in acpi_device_add()
  ACPI: scan: Rearrange memory allocation in acpi_device_add()

* acpi-properties:
  ACPI: property: Satisfy kernel doc validator (part 2)
  ACPI: property: Satisfy kernel doc validator (part 1)
  ACPI: property: Make acpi_node_prop_read() static
  ACPI: property: Remove dead code
  ACPI: property: Fix fwnode string properties matching

* acpi-platform:
  ACPI: platform-profile: Fix possible deadlock in platform_profile_remove()
  ACPI: platform-profile: Introduce object pointers to callbacks
  ACPI: platform-profile: Drop const qualifier for cur_profile
  ACPI: platform: Add platform profile support
  Documentation: Add documentation for new platform_profile sysfs attribute
2021-02-15 17:04:04 +01:00
Rafael J. Wysocki
6621cd2db5 Merge branches 'pm-sleep', 'pm-core', 'pm-domains' and 'pm-clk'
* pm-sleep:
  PM: sleep: Constify static struct attribute_group
  PM: sleep: Use dev_printk() when possible
  PM: sleep: No need to check PF_WQ_WORKER in thaw_kernel_threads()

* pm-core:
  PM: runtime: Fix typos and grammar
  PM: runtime: Fix resposible -> responsible in runtime.c

* pm-domains:
  PM: domains: Simplify the calculation of variables
  PM: domains: Add "performance" column to debug summary
  PM: domains: Make of_genpd_add_subdomain() return -EPROBE_DEFER
  PM: domains: Make set_performance_state() callback optional
  PM: domains: use device's next wakeup to determine domain idle state
  PM: domains: inform PM domain of a device's next wakeup

* pm-clk:
  PM: clk: make PM clock layer compatible with clocks that must sleep
2021-02-15 17:01:11 +01:00
Thomas Gleixner
0b6d70e571 irqchip updates for Linux 5.12:
- New driver for the MIPS-based Realtek RTL838x/RTL839x SoC
 - Conversion of the sun6i-r support code to a hierarchical setup
 - Fix wake-up interrupts for the ls-extirq driver
 - Fix MSI allocation for the loongson-pch-msi driver
 - Add compatible strings for new Qualcomm SoCs
 - Tidy up a few Kconfig entries (IMX, CSKY)
 - Spelling phyksiz
 - Remove the sirfsoc and tango drivers
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Merge tag 'irqchip-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip updates from Marc Zyngier

 - New driver for the MIPS-based Realtek RTL838x/RTL839x SoC
 - Conversion of the sun6i-r support code to a hierarchical setup
 - Fix wake-up interrupts for the ls-extirq driver
 - Fix MSI allocation for the loongson-pch-msi driver
 - Add compatible strings for new Qualcomm SoCs
 - Tidy up a few Kconfig entries (IMX, CSKY)
 - Spelling phyksiz
 - Remove the sirfsoc and tango drivers

Link: https://lore.kernel.org/r/20210214124015.3333457-1-maz@kernel.org
2021-02-15 15:41:56 +01:00
Linus Torvalds
ac30d8ce28 Merge branch 'for-5.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
 "Two cgroup fixes:

   - fix a NULL deref when trying to poll PSI in the root cgroup

   - fix confusing controller parsing corner case when mounting cgroup
     v1 hierarchies

  And doc / maintainer file updates"

* 'for-5.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: update PSI file description in docs
  cgroup: fix psi monitor for root cgroup
  MAINTAINERS: Update my email address
  MAINTAINERS: Remove stale URLs for cpuset
  cgroup-v1: add disabled controller check in cgroup1_parse_param()
2021-02-13 12:25:42 -08:00
Robert Hancock
eceac9d259 dt-bindings: net: xilinx_axienet: add xlnx,switch-x-sgmii attribute
Document the new xlnx,switch-x-sgmii attribute which is used to indicate
that the Ethernet core supports dynamic switching between 1000BaseX and
SGMII.

Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 17:38:53 -08:00
Chunfeng Yun
b5a12546e7 dt-bindings: usb: mediatek: musb: add mt8516 compatbile
Add support mt8516 compatbile

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-8-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:03 +01:00
Chunfeng Yun
fcad8dd5b9 dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623
Add two compatible for mt2701 and mt7623;

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-7-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:03 +01:00
Chunfeng Yun
2b9f3ed937 dt-bindings: usb: mtk-xhci: add optional assigned clock properties
Add optional property "assigned-clock" and "assigned-clock-parents"
used by mt7629.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-6-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:02 +01:00
Kyle Tso
4b59b60d89 Documentation: connector: Update the description of sink-vdos
Remove the acronym "VDM" and replace it with the full name "Vendor
Defined Message".

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210212073743.665038-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:36:56 +01:00
Ingo Molnar
85e853c5ec Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull RCU updates from Paul E. McKenney:

- Documentation updates.

- Miscellaneous fixes.

- kfree_rcu() updates: Addition of mem_dump_obj() to provide allocator return
  addresses to more easily locate bugs.  This has a couple of RCU-related commits,
  but is mostly MM.  Was pulled in with akpm's agreement.

- Per-callback-batch tracking of numbers of callbacks,
  which enables better debugging information and smarter
  reactions to large numbers of callbacks.

- The first round of changes to allow CPUs to be runtime switched from and to
  callback-offloaded state.

- CONFIG_PREEMPT_RT-related changes.

- RCU CPU stall warning updates.
- Addition of polling grace-period APIs for SRCU.

- Torture-test and torture-test scripting updates, including a "torture everything"
  script that runs rcutorture, locktorture, scftorture, rcuscale, and refscale.
  Plus does an allmodconfig build.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-02-12 12:56:55 +01:00
Ingo Molnar
62137364e3 Merge branch 'linus' into locking/core, to pick up upstream fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-02-12 12:54:58 +01:00
Ilya Leoshkevich
6a5df969ff docs: bpf: Clarify BPF_CMPXCHG wording
Based on [1], BPF_CMPXCHG should always load the old value into R0. The
phrasing in bpf.rst is somewhat ambiguous in this regard, improve it to
make this aspect crystal clear.

  [1] https://lore.kernel.org/bpf/CAADnVQJFcFwxEz=wnV=hkie-EDwa8s5JGbBQeFt1TGux1OihJw@mail.gmail.com/

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210210142853.82203-1-iii@linux.ibm.com
2021-02-11 22:01:13 -08:00
Vignesh Raghavendra
e276cfb9cd docs: networking: ti: Add driver doc for AM65 NUSS switch driver
J721e, J7200 and AM64 have multi port switches which can work in multi
mac mode and in switch mode. Add documentation explaining how to use
different modes.

Borrowed from:
Documentation/networking/device_drivers/ethernet/ti/cpsw_switchdev.rst

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11 17:52:13 -08:00
Vignesh Raghavendra
58356eb31d net: ti: am65-cpsw-nuss: Add devlink support
AM65 NUSS ethernet switch on K3 devices can be configured to work either
in independent mac mode where each port acts as independent network
interface (multi mac) or switch mode.

Add devlink hooks to provide a way to switch b/w these modes.

Rationale to use devlink instead of defaulting to bridge mode is that
SoC use cases require to support multiple independent MAC ports with no
switching so that users can use software bridges with multi-mac
configuration (e.g: to support LAG, HSR/PRP, etc). Also, switching
between multi mac and switch mode requires significant Port and ALE
reconfiguration, therefore is easier to be made as part of mode change
devlink hooks. It also allows to keep user interface similar to what
was implemented for the previous generation of TI CPSW IP
(on AM33/AM43/AM57 SoCs).

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11 17:52:13 -08:00
Rafał Miłecki
f08b5cf1eb dt-bindings: net: bcm4908-enet: include ethernet-controller.yaml
It should be /included/ by every Ethernet controller binding. It adds
support for various generic properties.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11 15:04:17 -08:00
Rafał Miłecki
6710c5b067 dt-bindings: net: rename BCM4908 Ethernet binding
Rob pointed out that a normal convention is "brcm,bcm4908-enet" so
update whole binding to match it.

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11 15:04:17 -08:00
David S. Miller
0ae20159e8 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kern
el/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2021-02-11

Here's the main bluetooth-next pull request for 5.12:

 - Add support for advertising monitor offliading using Microsoft
   vendor extensions
 - Add firmware download support for MediaTek MT7921U USB devices
 - Suspend-related fixes for Qualcomm devices
 - Add support for Intel GarfieldPeak controller
 - Various other smaller fixes & cleanups

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-11 14:59:01 -08:00