1. 09 Mar, 2019 4 commits
    • Qian Cai's avatar
      workqueue, lockdep: Fix a memory leak in wq->lock_name · 69a106c0
      Qian Cai authored
      The following commit:
      
        669de8bd ("kernel/workqueue: Use dynamic lockdep keys for workqueues")
      
      introduced a memory leak as wq_free_lockdep() calls kfree(wq->lock_name),
      but wq_init_lockdep() does not point wq->lock_name to the newly allocated
      slab object.
      
      This can be reproduced by running LTP fallocate04 followed by oom01 tests:
      
       unreferenced object 0xc0000005876384d8 (size 64):
        comm "fallocate04", pid 26972, jiffies 4297139141 (age 40370.480s)
        hex dump (first 32 bytes):
          28 77 71 5f 63 6f 6d 70 6c 65 74 69 6f 6e 29 65  (wq_completion)e
          78 74 34 2d 72 73 76 2d 63 6f 6e 76 65 72 73 69  xt4-rsv-conversi
        backtrace:
          [<00000000cb452883>] kvasprintf+0x6c/0xe0
          [<000000004654ddac>] kasprintf+0x34/0x60
          [<000000001c68f311>] alloc_workqueue+0x1f8/0x6ac
          [<0000000003c2ad83>] ext4_fill_super+0x23d4/0x3c80 [ext4]
          [<0000000006610538>] mount_bdev+0x25c/0x290
          [<00000000bcf955ec>] ext4_mount+0x28/0x50 [ext4]
          [<0000000016e08fd3>] legacy_get_tree+0x4c/0xb0
          [<0000000042b6a5fc>] vfs_get_tree+0x6c/0x190
          [<00000000268ab022>] do_mount+0xb9c/0x1100
          [<00000000698e6898>] ksys_mount+0x158/0x180
          [<0000000064e391fd>] sys_mount+0x20/0x30
          [<00000000ba378f12>] system_call+0x5c/0x70
      Signed-off-by: default avatarQian Cai <cai@lca.pw>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Reviewed-by: default avatarBart Van Assche <bvanassche@acm.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rik van Riel <riel@surriel.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: catalin.marinas@arm.com
      Cc: jiangshanlai@gmail.com
      Cc: tj@kernel.org
      Fixes: 669de8bd ("kernel/workqueue: Use dynamic lockdep keys for workqueues")
      Link: https://lkml.kernel.org/r/20190307002731.47371-1-cai@lca.pwSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      69a106c0
    • Bart Van Assche's avatar
      workqueue, lockdep: Fix an alloc_workqueue() error path · 009bb421
      Bart Van Assche authored
      This patch fixes a use-after-free and a memory leak in an alloc_workqueue()
      error path.
      
      Repoted by syzkaller and KASAN:
      
        BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:197 [inline]
        BUG: KASAN: use-after-free in lockdep_register_key+0x3b9/0x490 kernel/locking/lockdep.c:1023
        Read of size 8 at addr ffff888090fc2698 by task syz-executor134/7858
      
        CPU: 1 PID: 7858 Comm: syz-executor134 Not tainted 5.0.0-rc8-next-20190301 #1
        Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
        Call Trace:
         __dump_stack lib/dump_stack.c:77 [inline]
         dump_stack+0x172/0x1f0 lib/dump_stack.c:113
         print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187
         kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317
         __asan_report_load8_noabort+0x14/0x20 mm/kasan/generic_report.c:132
         __read_once_size include/linux/compiler.h:197 [inline]
         lockdep_register_key+0x3b9/0x490 kernel/locking/lockdep.c:1023
         wq_init_lockdep kernel/workqueue.c:3444 [inline]
         alloc_workqueue+0x427/0xe70 kernel/workqueue.c:4263
         ucma_open+0x76/0x290 drivers/infiniband/core/ucma.c:1732
         misc_open+0x398/0x4c0 drivers/char/misc.c:141
         chrdev_open+0x247/0x6b0 fs/char_dev.c:417
         do_dentry_open+0x488/0x1160 fs/open.c:771
         vfs_open+0xa0/0xd0 fs/open.c:880
         do_last fs/namei.c:3416 [inline]
         path_openat+0x10e9/0x46e0 fs/namei.c:3533
         do_filp_open+0x1a1/0x280 fs/namei.c:3563
         do_sys_open+0x3fe/0x5d0 fs/open.c:1063
         __do_sys_openat fs/open.c:1090 [inline]
         __se_sys_openat fs/open.c:1084 [inline]
         __x64_sys_openat+0x9d/0x100 fs/open.c:1084
         do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
         entry_SYSCALL_64_after_hwframe+0x49/0xbe
      
        Allocated by task 7789:
         save_stack+0x45/0xd0 mm/kasan/common.c:75
         set_track mm/kasan/common.c:87 [inline]
         __kasan_kmalloc mm/kasan/common.c:497 [inline]
         __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:470
         kasan_kmalloc+0x9/0x10 mm/kasan/common.c:511
         __do_kmalloc mm/slab.c:3726 [inline]
         __kmalloc+0x15c/0x740 mm/slab.c:3735
         kmalloc include/linux/slab.h:553 [inline]
         kzalloc include/linux/slab.h:743 [inline]
         alloc_workqueue+0x13c/0xe70 kernel/workqueue.c:4236
         ucma_open+0x76/0x290 drivers/infiniband/core/ucma.c:1732
         misc_open+0x398/0x4c0 drivers/char/misc.c:141
         chrdev_open+0x247/0x6b0 fs/char_dev.c:417
         do_dentry_open+0x488/0x1160 fs/open.c:771
         vfs_open+0xa0/0xd0 fs/open.c:880
         do_last fs/namei.c:3416 [inline]
         path_openat+0x10e9/0x46e0 fs/namei.c:3533
         do_filp_open+0x1a1/0x280 fs/namei.c:3563
         do_sys_open+0x3fe/0x5d0 fs/open.c:1063
         __do_sys_openat fs/open.c:1090 [inline]
         __se_sys_openat fs/open.c:1084 [inline]
         __x64_sys_openat+0x9d/0x100 fs/open.c:1084
         do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
         entry_SYSCALL_64_after_hwframe+0x49/0xbe
      
        Freed by task 7789:
         save_stack+0x45/0xd0 mm/kasan/common.c:75
         set_track mm/kasan/common.c:87 [inline]
         __kasan_slab_free+0x102/0x150 mm/kasan/common.c:459
         kasan_slab_free+0xe/0x10 mm/kasan/common.c:467
         __cache_free mm/slab.c:3498 [inline]
         kfree+0xcf/0x230 mm/slab.c:3821
         alloc_workqueue+0xc3e/0xe70 kernel/workqueue.c:4295
         ucma_open+0x76/0x290 drivers/infiniband/core/ucma.c:1732
         misc_open+0x398/0x4c0 drivers/char/misc.c:141
         chrdev_open+0x247/0x6b0 fs/char_dev.c:417
         do_dentry_open+0x488/0x1160 fs/open.c:771
         vfs_open+0xa0/0xd0 fs/open.c:880
         do_last fs/namei.c:3416 [inline]
         path_openat+0x10e9/0x46e0 fs/namei.c:3533
         do_filp_open+0x1a1/0x280 fs/namei.c:3563
         do_sys_open+0x3fe/0x5d0 fs/open.c:1063
         __do_sys_openat fs/open.c:1090 [inline]
         __se_sys_openat fs/open.c:1084 [inline]
         __x64_sys_openat+0x9d/0x100 fs/open.c:1084
         do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
         entry_SYSCALL_64_after_hwframe+0x49/0xbe
      
        The buggy address belongs to the object at ffff888090fc2580
         which belongs to the cache kmalloc-512 of size 512
        The buggy address is located 280 bytes inside of
         512-byte region [ffff888090fc2580, ffff888090fc2780)
      
      Reported-by: syzbot+17335689e239ce135d8b@syzkaller.appspotmail.com
      Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rik van Riel <riel@surriel.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Will Deacon <will.deacon@arm.com>
      Fixes: 669de8bd ("kernel/workqueue: Use dynamic lockdep keys for workqueues")
      Link: https://lkml.kernel.org/r/20190303220046.29448-1-bvanassche@acm.orgSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      009bb421
    • Bart Van Assche's avatar
      locking/lockdep: Only call init_rcu_head() after RCU has been initialized · 0126574f
      Bart Van Assche authored
      init_data_structures_once() is called for the first time before RCU has
      been initialized. Make sure that init_rcu_head() is called before the
      RCU head is used and after RCU has been initialized.
      Signed-off-by: default avatarBart Van Assche <bvanassche@acm.org>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rik van Riel <riel@surriel.com>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Will Deacon <will.deacon@arm.com>
      Cc: longman@redhat.com
      Link: https://lkml.kernel.org/r/c20aa0f0-42ab-a884-d931-7d4ec2bf0cdc@acm.orgSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      0126574f
    • Arnd Bergmann's avatar
      locking/lockdep: Avoid a Clang warning · 3fe7522f
      Arnd Bergmann authored
      Clang warns about a tentative array definition without a length:
      
        kernel/locking/lockdep.c:845:12: error: tentative array definition assumed to have one element [-Werror]
      
      There is no real reason to do this here, so just set the same length as
      in the real definition later in the same file.  It has to be hidden in
      an #ifdef or annotated __maybe_unused though, to avoid the unused-variable
      warning if CONFIG_PROVE_LOCKING is disabled.
      Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
      Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
      Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Andy Lutomirski <luto@kernel.org>
      Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
      Cc: Bart Van Assche <bvanassche@acm.org>
      Cc: Borislav Petkov <bp@alien8.de>
      Cc: Dave Hansen <dave.hansen@linux.intel.com>
      Cc: Frederic Weisbecker <frederic@kernel.org>
      Cc: H. Peter Anvin <hpa@zytor.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Rik van Riel <riel@surriel.com>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
      Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Vince Weaver <vincent.weaver@maine.edu>
      Cc: Waiman Long <longman@redhat.com>
      Cc: Will Deacon <will.deacon@arm.com>
      Link: https://lkml.kernel.org/r/20190307075222.3424524-1-arnd@arndb.deSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
      3fe7522f
  2. 06 Mar, 2019 5 commits
    • Linus Torvalds's avatar
      Merge branch 'x86-alternatives-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 6ea98b4b
      Linus Torvalds authored
      Pull x86 alternative instruction updates from Ingo Molnar:
       "Small RDTSCP opimization, enabled by the newly added ALTERNATIVE_3(),
        and other small improvements"
      
      * 'x86-alternatives-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/TSC: Use RDTSCP
        x86/alternatives: Add an ALTERNATIVE_3() macro
        x86/alternatives: Print containing function
        x86/alternatives: Add macro comments
      6ea98b4b
    • Linus Torvalds's avatar
      Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 45802da0
      Linus Torvalds authored
      Pull scheduler updates from Ingo Molnar:
       "The main changes in this cycle were:
      
         - refcount conversions
      
         - Solve the rq->leaf_cfs_rq_list can of worms for real.
      
         - improve power-aware scheduling
      
         - add sysctl knob for Energy Aware Scheduling
      
         - documentation updates
      
         - misc other changes"
      
      * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
        kthread: Do not use TIMER_IRQSAFE
        kthread: Convert worker lock to raw spinlock
        sched/fair: Use non-atomic cpumask_{set,clear}_cpu()
        sched/fair: Remove unused 'sd' parameter from select_idle_smt()
        sched/wait: Use freezable_schedule() when possible
        sched/fair: Prune, fix and simplify the nohz_balancer_kick() comment block
        sched/fair: Explain LLC nohz kick condition
        sched/fair: Simplify nohz_balancer_kick()
        sched/topology: Fix percpu data types in struct sd_data & struct s_data
        sched/fair: Simplify post_init_entity_util_avg() by calling it with a task_struct pointer argument
        sched/fair: Fix O(nr_cgroups) in the load balancing path
        sched/fair: Optimize update_blocked_averages()
        sched/fair: Fix insertion in rq->leaf_cfs_rq_list
        sched/fair: Add tmp_alone_branch assertion
        sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock()
        sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK
        sched/pelt: Skip updating util_est when utilization is higher than CPU's capacity
        sched/fair: Update scale invariance of PELT
        sched/fair: Move the rq_of() helper function
        sched/core: Convert task_struct.stack_refcount to refcount_t
        ...
      45802da0
    • Linus Torvalds's avatar
      Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 203b6609
      Linus Torvalds authored
      Pull perf updates from Ingo Molnar:
       "Lots of tooling updates - too many to list, here's a few highlights:
      
         - Various subcommand updates to 'perf trace', 'perf report', 'perf
           record', 'perf annotate', 'perf script', 'perf test', etc.
      
         - CPU and NUMA topology and affinity handling improvements,
      
         - HW tracing and HW support updates:
            - Intel PT updates
            - ARM CoreSight updates
            - vendor HW event updates
      
         - BPF updates
      
         - Tons of infrastructure updates, both on the build system and the
           library support side
      
         - Documentation updates.
      
         - ... and lots of other changes, see the changelog for details.
      
        Kernel side updates:
      
         - Tighten up kprobes blacklist handling, reduce the number of places
           where developers can install a kprobe and hang/crash the system.
      
         - Fix/enhance vma address filter handling.
      
         - Various PMU driver updates, small fixes and additions.
      
         - refcount_t conversions
      
         - BPF updates
      
         - error code propagation enhancements
      
         - misc other changes"
      
      * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits)
        perf script python: Add Python3 support to syscall-counts-by-pid.py
        perf script python: Add Python3 support to syscall-counts.py
        perf script python: Add Python3 support to stat-cpi.py
        perf script python: Add Python3 support to stackcollapse.py
        perf script python: Add Python3 support to sctop.py
        perf script python: Add Python3 support to powerpc-hcalls.py
        perf script python: Add Python3 support to net_dropmonitor.py
        perf script python: Add Python3 support to mem-phys-addr.py
        perf script python: Add Python3 support to failed-syscalls-by-pid.py
        perf script python: Add Python3 support to netdev-times.py
        perf tools: Add perf_exe() helper to find perf binary
        perf script: Handle missing fields with -F +..
        perf data: Add perf_data__open_dir_data function
        perf data: Add perf_data__(create_dir|close_dir) functions
        perf data: Fail check_backup in case of error
        perf data: Make check_backup work over directories
        perf tools: Add rm_rf_perf_data function
        perf tools: Add pattern name checking to rm_rf
        perf tools: Add depth checking to rm_rf
        perf data: Add global path holder
        ...
      203b6609
    • Linus Torvalds's avatar
      Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3478588b
      Linus Torvalds authored
      Pull locking updates from Ingo Molnar:
       "The biggest part of this tree is the new auto-generated atomics API
        wrappers by Mark Rutland.
      
        The primary motivation was to allow instrumentation without uglifying
        the primary source code.
      
        The linecount increase comes from adding the auto-generated files to
        the Git space as well:
      
          include/asm-generic/atomic-instrumented.h     | 1689 ++++++++++++++++--
          include/asm-generic/atomic-long.h             | 1174 ++++++++++---
          include/linux/atomic-fallback.h               | 2295 +++++++++++++++++++++++++
          include/linux/atomic.h                        | 1241 +------------
      
        I preferred this approach, so that the full call stack of the (already
        complex) locking APIs is still fully visible in 'git grep'.
      
        But if this is excessive we could certainly hide them.
      
        There's a separate build-time mechanism to determine whether the
        headers are out of date (they should never be stale if we do our job
        right).
      
        Anyway, nothing from this should be visible to regular kernel
        developers.
      
        Other changes:
      
         - Add support for dynamic keys, which removes a source of false
           positives in the workqueue code, among other things (Bart Van
           Assche)
      
         - Updates to tools/memory-model (Andrea Parri, Paul E. McKenney)
      
         - qspinlock, wake_q and lockdep micro-optimizations (Waiman Long)
      
         - misc other updates and enhancements"
      
      * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (48 commits)
        locking/lockdep: Shrink struct lock_class_key
        locking/lockdep: Add module_param to enable consistency checks
        lockdep/lib/tests: Test dynamic key registration
        lockdep/lib/tests: Fix run_tests.sh
        kernel/workqueue: Use dynamic lockdep keys for workqueues
        locking/lockdep: Add support for dynamic keys
        locking/lockdep: Verify whether lock objects are small enough to be used as class keys
        locking/lockdep: Check data structure consistency
        locking/lockdep: Reuse lock chains that have been freed
        locking/lockdep: Fix a comment in add_chain_cache()
        locking/lockdep: Introduce lockdep_next_lockchain() and lock_chain_count()
        locking/lockdep: Reuse list entries that are no longer in use
        locking/lockdep: Free lock classes that are no longer in use
        locking/lockdep: Update two outdated comments
        locking/lockdep: Make it easy to detect whether or not inside a selftest
        locking/lockdep: Split lockdep_free_key_range() and lockdep_reset_lock()
        locking/lockdep: Initialize the locks_before and locks_after lists earlier
        locking/lockdep: Make zap_class() remove all matching lock order entries
        locking/lockdep: Reorder struct lock_class members
        locking/lockdep: Avoid that add_chain_cache() adds an invalid chain to the cache
        ...
      3478588b
    • Linus Torvalds's avatar
      Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · c8f5ed6e
      Linus Torvalds authored
      Pull EFI updates from Ingo Molnar:
       "The main EFI changes in this cycle were:
      
         - Use 32-bit alignment for efi_guid_t
      
         - Allow the SetVirtualAddressMap() call to be omitted
      
         - Implement earlycon=efifb based on existing earlyprintk code
      
         - Various minor fixes and code cleanups from Sai, Ard and me"
      
      * 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        efi: Fix build error due to enum collision between efi.h and ima.h
        efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation
        x86: Make ARCH_USE_MEMREMAP_PROT a generic Kconfig symbol
        efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted
        efi: Replace GPL license boilerplate with SPDX headers
        efi/fdt: Apply more cleanups
        efi: Use 32-bit alignment for efi_guid_t
        efi/memattr: Don't bail on zero VA if it equals the region's PA
        x86/efi: Mark can_free_region() as an __init function
      c8f5ed6e
  3. 05 Mar, 2019 24 commits
    • Linus Torvalds's avatar
      Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3717f613
      Linus Torvalds authored
      Pull RCU updates from Ingo Molnar:
       "The main RCU related changes in this cycle were:
      
         - Additional cleanups after RCU flavor consolidation
      
         - Grace-period forward-progress cleanups and improvements
      
         - Documentation updates
      
         - Miscellaneous fixes
      
         - spin_is_locked() conversions to lockdep
      
         - SPDX changes to RCU source and header files
      
         - SRCU updates
      
         - Torture-test updates, including nolibc updates and moving nolibc to
           tools/include"
      
      * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
        locking/locktorture: Convert to SPDX license identifier
        linux/torture: Convert to SPDX license identifier
        torture: Convert to SPDX license identifier
        linux/srcu: Convert to SPDX license identifier
        linux/rcutree: Convert to SPDX license identifier
        linux/rcutiny: Convert to SPDX license identifier
        linux/rcu_sync: Convert to SPDX license identifier
        linux/rcu_segcblist: Convert to SPDX license identifier
        linux/rcupdate: Convert to SPDX license identifier
        linux/rcu_node_tree: Convert to SPDX license identifier
        rcu/update: Convert to SPDX license identifier
        rcu/tree: Convert to SPDX license identifier
        rcu/tiny: Convert to SPDX license identifier
        rcu/sync: Convert to SPDX license identifier
        rcu/srcu: Convert to SPDX license identifier
        rcu/rcutorture: Convert to SPDX license identifier
        rcu/rcu_segcblist: Convert to SPDX license identifier
        rcu/rcuperf: Convert to SPDX license identifier
        rcu/rcu.h: Convert to SPDX license identifier
        RCU/torture.txt: Remove section MODULE PARAMETERS
        ...
      3717f613
    • Linus Torvalds's avatar
      Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · b1b988a6
      Linus Torvalds authored
      Pull year 2038 updates from Thomas Gleixner:
       "Another round of changes to make the kernel ready for 2038. After lots
        of preparatory work this is the first set of syscalls which are 2038
        safe:
      
          403 clock_gettime64
          404 clock_settime64
          405 clock_adjtime64
          406 clock_getres_time64
          407 clock_nanosleep_time64
          408 timer_gettime64
          409 timer_settime64
          410 timerfd_gettime64
          411 timerfd_settime64
          412 utimensat_time64
          413 pselect6_time64
          414 ppoll_time64
          416 io_pgetevents_time64
          417 recvmmsg_time64
          418 mq_timedsend_time64
          419 mq_timedreceiv_time64
          420 semtimedop_time64
          421 rt_sigtimedwait_time64
          422 futex_time64
          423 sched_rr_get_interval_time64
      
        The syscall numbers are identical all over the architectures"
      
      * 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
        riscv: Use latest system call ABI
        checksyscalls: fix up mq_timedreceive and stat exceptions
        unicore32: Fix __ARCH_WANT_STAT64 definition
        asm-generic: Make time32 syscall numbers optional
        asm-generic: Drop getrlimit and setrlimit syscalls from default list
        32-bit userspace ABI: introduce ARCH_32BIT_OFF_T config option
        compat ABI: use non-compat openat and open_by_handle_at variants
        y2038: add 64-bit time_t syscalls to all 32-bit architectures
        y2038: rename old time and utime syscalls
        y2038: remove struct definition redirects
        y2038: use time32 syscall names on 32-bit
        syscalls: remove obsolete __IGNORE_ macros
        y2038: syscalls: rename y2038 compat syscalls
        x86/x32: use time64 versions of sigtimedwait and recvmmsg
        timex: change syscalls to use struct __kernel_timex
        timex: use __kernel_timex internally
        sparc64: add custom adjtimex/clock_adjtime functions
        time: fix sys_timer_settime prototype
        time: Add struct __kernel_timex
        time: make adjtime compat handling available for 32 bit
        ...
      b1b988a6
    • Linus Torvalds's avatar
      Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · edaed168
      Linus Torvalds authored
      Pull x86/pti update from Thomas Gleixner:
       "Just a single change from the anti-performance departement:
      
         - Add a new PR_SPEC_DISABLE_NOEXEC option which allows to apply the
           speculation protections on a process without inheriting the state
           on exec.
      
           This remedies a situation where a Java-launcher has speculation
           protections enabled because that's the default for JVMs which
           causes the launched regular harmless processes to inherit the
           protection state which results in unintended performance
           degradation"
      
      * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/speculation: Add PR_SPEC_DISABLE_NOEXEC
      edaed168
    • Linus Torvalds's avatar
      Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 78f86013
      Linus Torvalds authored
      Pull irq updates from Thomas Gleixner:
       "The interrupt departement delivers this time:
      
         - New infrastructure to manage NMIs on platforms which have a sane
           NMI delivery, i.e. identifiable NMI vectors instead of a single
           lump.
      
         - Simplification of the interrupt affinity management so drivers
           don't have to implement ugly loops around the PCI/MSI enablement.
      
         - Speedup for interrupt statistics in /proc/stat
      
         - Provide a function to retrieve the default irq domain
      
         - A new interrupt controller for the Loongson LS1X platform
      
         - Affinity support for the SiFive PLIC
      
         - Better support for the iMX irqsteer driver
      
         - NUMA aware memory allocations for GICv3
      
         - The usual small fixes, improvements and cleanups all over the
           place"
      
      * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (36 commits)
        irqchip/imx-irqsteer: Add multi output interrupts support
        irqchip/imx-irqsteer: Change to use reg_num instead of irq_group
        dt-bindings: irq: imx-irqsteer: Add multi output interrupts support
        dt-binding: irq: imx-irqsteer: Use irq number instead of group number
        irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code
        irqchip/gicv3-its: Use NUMA aware memory allocation for ITS tables
        irqdomain: Allow the default irq domain to be retrieved
        irqchip/sifive-plic: Implement irq_set_affinity() for SMP host
        irqchip/sifive-plic: Differentiate between PLIC handler and context
        irqchip/sifive-plic: Add warning in plic_init() if handler already present
        irqchip/sifive-plic: Pre-compute context hart base and enable base
        PCI/MSI: Remove obsolete sanity checks for multiple interrupt sets
        genirq/affinity: Remove the leftovers of the original set support
        nvme-pci: Simplify interrupt allocation
        genirq/affinity: Add new callback for (re)calculating interrupt sets
        genirq/affinity: Store interrupt sets size in struct irq_affinity
        genirq/affinity: Code consolidation
        irqchip/irq-sifive-plic: Check and continue in case of an invalid cpuid.
        irqchip/i8259: Fix shutdown order by moving syscore_ops registration
        dt-bindings: interrupt-controller: loongson ls1x intc
        ...
      78f86013
    • Linus Torvalds's avatar
      Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 18483190
      Linus Torvalds authored
      Pull timer and clockevent updates from Thomas Gleixner:
       "The time(r) core and clockevent updates are mostly boring this time:
      
         - A new driver for the Tegra210 timer
      
         - Small fixes and improvements alll over the place
      
         - Documentation updates and cleanups"
      
      * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
        soc/tegra: default select TEGRA_TIMER for Tegra210
        clocksource/drivers/tegra: Add Tegra210 timer support
        dt-bindings: timer: add Tegra210 timer
        clocksource/drivers/timer-cs5535: Rename the file for consistency
        clocksource/drivers/timer-pxa: Rename the file for consistency
        clocksource/drivers/tango-xtal: Rename the file for consistency
        dt-bindings: timer: gpt: update binding doc
        clocksource/drivers/exynos_mct: Remove unused header includes
        dt-bindings: timer: mediatek: update bindings for MT7629 SoC
        clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
        clocksource/drivers/exynos_mct: Remove dead code
        clocksource/drivers/riscv: Add required checks during clock source init
        dt-bindings: timer: renesas: tmu: Document r8a774c0 bindings
        dt-bindings: timer: renesas, cmt: Document r8a774c0 CMT support
        clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
        clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
        clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability
        clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
        timers: Mark expected switch fall-throughs
        timekeeping/debug: No need to check return value of debugfs_create functions
        ...
      18483190
    • Linus Torvalds's avatar
      Merge tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux · d9862cfb
      Linus Torvalds authored
      Pull MIPS updates from Paul Burton:
      
       - Support for the MIPSr6 MemoryMapID register & Global INValidate TLB
         (GINVT) instructions, allowing for more efficient TLB maintenance
         when running on a CPU such as the I6500 that supports these.
      
       - Enable huge page support for MIPS64r6.
      
       - Optimize post-DMA cache sync by removing that code entirely for
         kernel configurations in which we know it won't be needed.
      
       - The number of pages allocated for interrupt stacks is now calculated
         correctly, where before we would wastefully allocate too much memory
         in some configurations.
      
       - The ath79 platform migrates to devicetree.
      
       - The bcm47xx platform sees fixes for the Buffalo WHR-G54S board.
      
       - The ingenic/jz4740 platform gains support for appended devicetrees.
      
       - The cavium_octeon, lantiq, loongson32 & sgi-ip27 platforms all see
         cleanups as do various pieces of core architecture code.
      
      * tag 'mips_5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (66 commits)
        MIPS: lantiq: Remove separate GPHY Firmware loader
        MIPS: ingenic: Add support for appended devicetree
        MIPS: SGI-IP27: rework HUB interrupts
        MIPS: SGI-IP27: do boot CPU init later
        MIPS: SGI-IP27: do xtalk scanning later
        MIPS: SGI-IP27: use pr_info/pr_emerg and pr_cont to fix output
        MIPS: SGI-IP27: clean up bridge access and header files
        MIPS: SGI-IP27: get rid of volatile and hubreg_t
        MIPS: irq: Allocate accurate order pages for irq stack
        MIPS: dma-noncoherent: Remove bogus condition in dma_sync_phys()
        MIPS: eBPF: Remove REG_32BIT_ZERO_EX
        MIPS: eBPF: Always return sign extended 32b values
        MIPS: CM: Fix indentation
        MIPS: BCM47XX: Fix/improve Buffalo WHR-G54S support
        MIPS: OCTEON: program rx/tx-delay always from DT
        MIPS: OCTEON: delete board-specific link status
        MIPS: OCTEON: don't lie about interface type of CN3005 board
        MIPS: OCTEON: warn if deprecated link status is being used
        MIPS: OCTEON: add fixed-link nodes to in-kernel device tree
        MIPS: Delete unused flush_cache_sigtramp()
        ...
      d9862cfb
    • Linus Torvalds's avatar
      Merge branch 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux · 8feed3ef
      Linus Torvalds authored
      Pull parisc updates from Helge Deller:
       "The most important changes in this patch set are:
      
         - DMA-related cleanups for parisc with the aim to move anything not
           required by drivers out of <asm/dma-mapping.h>, by Christoph
           Hellwig
      
         - Switch to memblock_alloc(), by Mike Rapoport
      
         - Makefile cleanups by Masahiro Yamada
      
         - Switch to bust_spinlocks(), by Sergey Senozhatsky
      
         - Improved initial SMP affinity selection for IRQs
      
         - Added IPI- and rescheduling interrupts in /proc/interrupts output"
      
      * 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (21 commits)
        parisc: use memblock_alloc() instead of custom get_memblock()
        parisc: Add constants for various PDC firmware calls
        parisc: Add constant for PDC_PAT_COMPLEX firmware call
        parisc: Show machine product number during boot
        parisc: Add constants for PDC_RELOCATE PDC call
        parisc: Add PDC_CRASH_PREP PDC function number
        parisc: Use F_EXTEND() macro in iosapic code
        parisc: remove the HBA_DATA macro
        parisc/lba_pci: use container_of in LBA_DEV
        parisc/dino: use container_of in DINO_DEV
        parisc: properly type the return value of parisc_walk_tree
        parisc: properly type the iommu field in struct pci_hba_data
        parisc: turn GET_IOC into an inline function
        parisc: move internal implementation details out of <asm/dma-mapping.h>
        parisc: don't include <asm/cacheflush.h> in <asm/dma-mapping.h>
        parisc: remove meaningless ccflags-y in arch/parisc/boot/Makefile
        parisc: replace oops_in_progress manipulation with bust_spinlocks()
        parisc: Improve initial IRQ to CPU assignment
        parisc: Count IPI function call interrupts
        parisc: Show rescheduling interrupts on SMP machines only
        ...
      8feed3ef
    • Linus Torvalds's avatar
      Merge tag 's390-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux · 3591b195
      Linus Torvalds authored
      Pull s390 updates from Martin Schwidefsky:
      
       - A copy of Arnds compat wrapper generation series
      
       - Pass information about the KVM guest to the host in form the control
         program code and the control program version code
      
       - Map IOV resources to support PCI physical functions on s390
      
       - Add vector load and store alignment hints to improve performance
      
       - Use the "jdd" constraint with gcc 9 to make jump labels working again
      
       - Remove amode workaround for old z/VM releases from the DCSS code
      
       - Add support for in-kernel performance measurements using the CPU
         measurement counter facility
      
       - Introduce a new PMU device cpum_cf_diag to capture counters and store
         thenn as event raw data.
      
       - Bug fixes and cleanups
      
      * tag 's390-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (54 commits)
        Revert "s390/cpum_cf: Add kernel message exaplanations"
        s390/dasd: fix read device characteristic with CONFIG_VMAP_STACK=y
        s390/suspend: fix prefix register reset in swsusp_arch_resume
        s390: warn about clearing als implied facilities
        s390: allow overriding facilities via command line
        s390: clean up redundant facilities list setup
        s390/als: remove duplicated in-place implementation of stfle
        s390/cio: Use cpa range elsewhere within vfio-ccw
        s390/cio: Fix vfio-ccw handling of recursive TICs
        s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem
        s390/cpum_cf: Handle EBUSY return code from CPU counter facility reservation
        s390/cpum_cf: Add kernel message exaplanations
        s390/cpum_cf_diag: Add support for s390 counter facility diagnostic trace
        s390/cpum_cf: add ctr_stcctm() function
        s390/cpum_cf: move common functions into a separate file
        s390/cpum_cf: introduce kernel_cpumcf_avail() function
        s390/cpu_mf: replace stcctm5() with the stcctm() function
        s390/cpu_mf: add store cpu counter multiple instruction support
        s390/cpum_cf: Add minimal in-kernel interface for counter measurements
        s390/cpum_cf: introduce kernel_cpumcf_alert() to obtain measurement alerts
        ...
      3591b195
    • Linus Torvalds's avatar
      Merge tag 'm68k-for-v5.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k · 45f5532a
      Linus Torvalds authored
      Pull m68k updates from Geert Uytterhoeven:
      
       - VLA removal
      
       - gcc-8.x build fixes
      
       - small improvements and cleanups
      
       - defconfig updates
      
      * tag 'm68k-for-v5.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
        m68k: Add -ffreestanding to CFLAGS
        m68k/apollo: Fix comment in Makefile
        dio: Fix buffer overflow in case of unknown board
        m68k/defconfig: Update defconfigs for v5.0-rc1
        m68k/atari: Avoid VLA use in atari_switches_setup()
        m68k: Avoid VLA use in mangle_kernel_stack()
        m68k/mac: Use '030 reset method on SE/30
        m68k/mac: Remove obsolete comment
        m68k/mac: Skip VIA port setup unless RTC is connected
        m68k/mac: Clean up unused timer definitions
        m68k/defconfig: Drop NET_VENDOR_<FOO>=n
      45f5532a
    • Borislav Petkov's avatar
      x86: Deprecate a.out support · eac61655
      Borislav Petkov authored
      Linux supports ELF binaries for ~25 years now.  a.out coredumping has
      bitrotten quite significantly and would need some fixing to get it into
      shape again but considering how even the toolchains cannot create a.out
      executables in its default configuration, let's deprecate a.out support
      and remove it a couple of releases later, instead.
      Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
      Acked-by: default avatarRichard Weinberger <richard@nod.at>
      Cc: Al Viro <viro@zeniv.linux.org.uk>
      Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
      Cc: Jann Horn <jannh@google.com>
      Cc: <linux-api@vger.kernel.org>
      Cc: <linux-fsdevel@vger.kernel.org>
      Cc: lkml <linux-kernel@vger.kernel.org>
      Cc: Matthew Wilcox <willy@infradead.org>
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: <x86@kernel.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      eac61655
    • Linus Torvalds's avatar
      a.out: remove core dumping support · 08300f44
      Linus Torvalds authored
      We're (finally) phasing out a.out support for good.  As Borislav Petkov
      points out, we've supported ELF binaries for about 25 years by now, and
      coredumping in particular has bitrotted over the years.
      
      None of the tool chains even support generating a.out binaries any more,
      and the plan is to deprecate a.out support entirely for the kernel.  But
      I want to start with just removing the core dumping code, because I can
      still imagine that somebody actually might want to support a.out as a
      simpler biinary format.
      
      Particularly if you generate some random binaries on the fly, ELF is a
      much more complicated format (admittedly ELF also does have a lot of
      toolchain support, mitigating that complexity a lot and you really
      should have moved over in the last 25 years).
      
      So it's at least somewhat possible that somebody out there has some
      workflow that still involves generating and running a.out executables.
      
      In contrast, it's very unlikely that anybody depends on debugging any
      legacy a.out core files.  But regardless, I want this phase-out to be
      done in two steps, so that we can resurrect a.out support (if needed)
      without having to resurrect the core file dumping that is almost
      certainly not needed.
      
      Jann Horn pointed to the <asm/a.out-core.h> file that my first trivial
      cut at this had missed.
      
      And Alan Cox points out that the a.out binary loader _could_ be done in
      user space if somebody wants to, but we might keep just the loader in
      the kernel if somebody really wants it, since the loader isn't that big
      and has no really odd special cases like the core dumping does.
      Acked-by: default avatarBorislav Petkov <bp@alien8.de>
      Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
      Cc: Jann Horn <jannh@google.com>
      Cc: Richard Weinberger <richard@nod.at>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      08300f44
    • Linus Torvalds's avatar
      Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 63bdf428
      Linus Torvalds authored
      Pull crypto update from Herbert Xu:
       "API:
         - Add helper for simple skcipher modes.
         - Add helper to register multiple templates.
         - Set CRYPTO_TFM_NEED_KEY when setkey fails.
         - Require neither or both of export/import in shash.
         - AEAD decryption test vectors are now generated from encryption
           ones.
         - New option CONFIG_CRYPTO_MANAGER_EXTRA_TESTS that includes random
           fuzzing.
      
        Algorithms:
         - Conversions to skcipher and helper for many templates.
         - Add more test vectors for nhpoly1305 and adiantum.
      
        Drivers:
         - Add crypto4xx prng support.
         - Add xcbc/cmac/ecb support in caam.
         - Add AES support for Exynos5433 in s5p.
         - Remove sha384/sha512 from artpec7 as hardware cannot do partial
           hash"
      
      [ There is a merge of the Freescale SoC tree in order to pull in changes
        required by patches to the caam/qi2 driver. ]
      
      * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (174 commits)
        crypto: s5p - add AES support for Exynos5433
        dt-bindings: crypto: document Exynos5433 SlimSSS
        crypto: crypto4xx - add missing of_node_put after of_device_is_available
        crypto: cavium/zip - fix collision with generic cra_driver_name
        crypto: af_alg - use struct_size() in sock_kfree_s()
        crypto: caam - remove redundant likely/unlikely annotation
        crypto: s5p - update iv after AES-CBC op end
        crypto: x86/poly1305 - Clear key material from stack in SSE2 variant
        crypto: caam - generate hash keys in-place
        crypto: caam - fix DMA mapping xcbc key twice
        crypto: caam - fix hash context DMA unmap size
        hwrng: bcm2835 - fix probe as platform device
        crypto: s5p-sss - Use AES_BLOCK_SIZE define instead of number
        crypto: stm32 - drop pointless static qualifier in stm32_hash_remove()
        crypto: chelsio - Fixed Traffic Stall
        crypto: marvell - Remove set but not used variable 'ivsize'
        crypto: ccp - Update driver messages to remove some confusion
        crypto: adiantum - add 1536 and 4096-byte test vectors
        crypto: nhpoly1305 - add a test vector with len % 16 != 0
        crypto: arm/aes-ce - update IV after partial final CTR block
        ...
      63bdf428
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next · 64563003
      Linus Torvalds authored
      Pull networking updates from David Miller:
       "Here we go, another merge window full of networking and #ebpf changes:
      
         1) Snoop DHCPACKS in batman-adv to learn MAC/IP pairs in the DHCP
            range without dealing with floods of ARP traffic, from Linus
            Lüssing.
      
         2) Throttle buffered multicast packet transmission in mt76, from
            Felix Fietkau.
      
         3) Support adaptive interrupt moderation in ice, from Brett Creeley.
      
         4) A lot of struct_size conversions, from Gustavo A. R. Silva.
      
         5) Add peek/push/pop commands to bpftool, as well as bash completion,
            from Stanislav Fomichev.
      
         6) Optimize sk_msg_clone(), from Vakul Garg.
      
         7) Add SO_BINDTOIFINDEX, from David Herrmann.
      
         8) Be more conservative with local resends due to local congestion,
            from Yuchung Cheng.
      
         9) Allow vetoing of unsupported VXLAN FDBs, from Petr Machata.
      
        10) Add health buffer support to devlink, from Eran Ben Elisha.
      
        11) Add TXQ scheduling API to mac80211, from Toke Høiland-Jørgensen.
      
        12) Add statistics to basic packet scheduler filter, from Cong Wang.
      
        13) Add GRE tunnel support for mlxsw Spectrum-2, from Nir Dotan.
      
        14) Lots of new IP tunneling forwarding tests, also from Nir Dotan.
      
        15) Add 3ad stats to bonding, from Nikolay Aleksandrov.
      
        16) Lots of probing improvements for bpftool, from Quentin Monnet.
      
        17) Various nfp drive #ebpf JIT improvements from Jakub Kicinski.
      
        18) Allow #ebpf programs to access gso_segs from skb shared info, from
            Eric Dumazet.
      
        19) Add sock_diag support for AF_XDP sockets, from Björn Töpel.
      
        20) Support 22260 iwlwifi devices, from Luca Coelho.
      
        21) Use rbtree for ipv6 defragmentation, from Peter Oskolkov.
      
        22) Add JMP32 instruction class support to #ebpf, from Jiong Wang.
      
        23) Add spinlock support to #ebpf, from Alexei Starovoitov.
      
        24) Support 256-bit keys and TLS 1.3 in ktls, from Dave Watson.
      
        25) Add device infomation API to devlink, from Jakub Kicinski.
      
        26) Add new timestamping socket options which are y2038 safe, from
            Deepa Dinamani.
      
        27) Add RX checksum offloading for various sh_eth chips, from Sergei
            Shtylyov.
      
        28) Flow offload infrastructure, from Pablo Neira Ayuso.
      
        29) Numerous cleanups, improvements, and bug fixes to the PHY layer
            and many drivers from Heiner Kallweit.
      
        30) Lots of changes to try and make packet scheduler classifiers run
            lockless as much as possible, from Vlad Buslov.
      
        31) Support BCM957504 chip in bnxt_en driver, from Erik Burrows.
      
        32) Add concurrency tests to tc-tests infrastructure, from Vlad
            Buslov.
      
        33) Add hwmon support to aquantia, from Heiner Kallweit.
      
        34) Allow 64-bit values for SO_MAX_PACING_RATE, from Eric Dumazet.
      
        And I would be remiss if I didn't thank the various major networking
        subsystem maintainers for integrating much of this work before I even
        saw it. Alexei Starovoitov, Daniel Borkmann, Pablo Neira Ayuso,
        Johannes Berg, Kalle Valo, and many others. Thank you!"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2207 commits)
        net/sched: avoid unused-label warning
        net: ignore sysctl_devconf_inherit_init_net without SYSCTL
        phy: mdio-mux: fix Kconfig dependencies
        net: phy: use phy_modify_mmd_changed in genphy_c45_an_config_aneg
        net: dsa: mv88e6xxx: add call to mv88e6xxx_ports_cmode_init to probe for new DSA framework
        selftest/net: Remove duplicate header
        sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79
        net/mlx5e: Update tx reporter status in case channels were successfully opened
        devlink: Add support for direct reporter health state update
        devlink: Update reporter state to error even if recover aborted
        sctp: call iov_iter_revert() after sending ABORT
        team: Free BPF filter when unregistering netdev
        ip6mr: Do not call __IP6_INC_STATS() from preemptible context
        isdn: mISDN: Fix potential NULL pointer dereference of kzalloc
        net: dsa: mv88e6xxx: support in-band signalling on SGMII ports with external PHYs
        cxgb4/chtls: Prefix adapter flags with CXGB4
        net-sysfs: Switch to bitmap_zalloc()
        mellanox: Switch to bitmap_zalloc()
        bpf: add test cases for non-pointer sanitiation logic
        mlxsw: i2c: Extend initialization by querying resources data
        ...
      64563003
    • Martin Schwidefsky's avatar
      fcc082f3
    • Linus Torvalds's avatar
      Merge tag 'leds-for-5.1-rc1' of... · cd2a3bf0
      Linus Torvalds authored
      Merge tag 'leds-for-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds
      
      Pull LED updates from Jacek Anaszewski:
      
       - finalize previously announced support for initialization of pattern
         triggers from Device Tree
      
       - fix for null deref on firmware load failure in leds-lp55xx-common.c
      
      * tag 'leds-for-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds:
        leds: lp55xx: fix null deref on firmware load failure
        leds: trigger: timer: Add initialization from Device Tree
        leds: trigger: oneshot: Add initialization from Device Tree
        leds: trigger: pattern: Add pattern initialization from Device Tree
        leds: Add helper for getting default pattern from Device Tree
        dt-bindings: leds: Add pattern initialization from Device Tree
      cd2a3bf0
    • Linus Torvalds's avatar
      Merge tag 'hwmon-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging · 7629bac6
      Linus Torvalds authored
      Pull hwmon updates from Guenter Roeck:
      
       - Add support for LM96000, DPS-650AB to existing drivers
      
       - Use permission specific SENSOR[_DEVICE]_ATTR variants in several
         drivers
      
       - Replace S_<PERMS> with octal values in several drivers
      
       - Update some license headers
      
       - Various minor fixes and improvements in several drivers
      
      * tag 'hwmon-for-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (89 commits)
        dt-bindings: hwmon: Add missing documentation for lm75
        hwmon: (ad7418) Add device tree probing
        hwmon: (ad741x) Add DT bindings for Analog Devices AD741x
        hwmon: (ntc_thermistor) Convert to new hwmon API
        hwmon: (pwm-fan) Add optional regulator support
        dt-bindings: hwmon: Add optional regulator support to pwm-fan
        hwmon: (f71882fg) Mark expected switch fall-through
        hwmon: (ad7418) Catch I2C errors
        hwmon: (lm85) add support for LM96000 high frequencies
        hwmon: (lm85) support the LM96000
        dt-bindings: Add LM96000 as a trivial device
        hwmon: (lm85) remove freq_map size hardcodes
        hwmon: (occ) Fix license headers
        hwmon: (via-cputemp) Use permission specific SENSOR[_DEVICE]_ATTR variants
        hwmon: (vexpress-hwmon) Use permission specific SENSOR[_DEVICE]_ATTR variants
        hwmon: (tmp421) Replace S_<PERMS> with octal values
        hwmon: (tmp103) Use permission specific SENSOR[_DEVICE]_ATTR variants
        hwmon: (tmp102) Replace S_<PERMS> with octal values
        hwmon: (tc74) Use permission specific SENSOR[_DEVICE]_ATTR variants
        hwmon: (tc654) Use permission specific SENSOR[_DEVICE]_ATTR variants
        ...
      7629bac6
    • Linus Torvalds's avatar
      Merge tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi · dcc75dde
      Linus Torvalds authored
      Pull spi updates from Mark Brown:
       "A fairly quiet release for SPI, the biggest thing is the conversion to
        use GPIO descriptors which is now 90% done but still needs some
        stragglers converting.
      
        Summary:
      
         - Support for inter-word delays
      
         - Conversion of the core and most drivers to use GPIO descriptors for
           GPIO controlled chip selects
      
         - New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum"
      
      * tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (104 commits)
        spi: sh-msiof: Restrict bits per word to 8/16/24/32 on R-Car Gen2/3
        spi: sifive: Remove redundant dev_err call in sifive_spi_probe()
        spi: sifive: Remove spi_master_put in sifive_spi_remove()
        spi: spi-gpio: fix SPI_CS_HIGH capability
        spi: pxa2xx: Setup maximum supported DMA transfer length
        spi: sifive: Add driver for the SiFive SPI controller
        spi: sifive: Add DT documentation for SiFive SPI controller
        spi: sprd: Add a prefix for SPI DMA channel macros
        spi: sprd: spi: sprd: Add DMA mode support
        dt-bindings: spi: Add the DMA properties for the SPI dma mode
        spi: sprd: Add the SPI irq function for the SPI DMA mode
        dt-bindings: spi: imx: Add an entry for the i.MX8QM compatible
        spi: use gpio[d]_set_value_cansleep for setting chipselect GPIO
        spi: gpio: Advertise support for SPI_CS_HIGH
        spi: sh-msiof: Replace spi_master by spi_controller
        spi: sh-hspi: Replace spi_master by spi_controller
        spi: rspi: Replace spi_master by spi_controller
        spi: atmel-quadspi: add support for sam9x60 qspi controller
        dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60
        spi: atmel-quadspi: add support for named peripheral clock
        ...
      dcc75dde
    • Linus Torvalds's avatar
      Merge tag 'regulator-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · 32c0ac3a
      Linus Torvalds authored
      Pull regulator updates from Mark Brown:
       "The bulk of the standout changes in this release are cleanups, with
        the core work being a combination of factoring out common code into
        helpers and the completion of the conversion of the core to use GPIO
        descriptors.
      
        Summary:
      
         - Addition of helper functions for current limits and conversion of
           drivers to use them by Axel Lin.
      
         - Lots and lots of cleanups from Axel Lin.
      
         - Conversion of the core to use GPIO descriptors rather than numbers
           by Linus Walleij.
      
         - New drivers for Maxim MAX77650 and ROHM BD70528"
      
      * tag 'regulator-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (131 commits)
        regulator: mc13xxx: Constify regulator_ops variables
        regulator: palmas: Constify palmas_smps_ramp_delay array
        regulator: wm831x-dcdc: Convert to use regulator_set/get_current_limit_regmap
        regulator: pv88090: Convert to use regulator_set/get_current_limit_regmap
        regulator: pv88080: Convert to use regulator_set/get_current_limit_regmap
        regulator: pv88060: Convert to use regulator_set/get_current_limit_regmap
        regulator: max77650: Convert to use regulator_set/get_current_limit_regmap
        regulator: lp873x: Convert to use regulator_set/get_current_limit_regmap
        regulator: lp872x: Convert to use regulator_set/get_current_limit_regmap
        regulator: da9210: Convert to use regulator_set/get_current_limit_regmap
        regulator: da9055: Convert to use regulator_set/get_current_limit_regmap
        regulator: core: Add set/get_current_limit helpers for regmap users
        regulator: Fix comment for csel_reg and csel_mask
        regulator: stm32-vrefbuf: add power management support
        regulator: 88pm8607: Remove unused fields from struct pm8607_regulator_info
        regulator: 88pm8607: Simplify pm8607_list_voltage implementation
        regulator: cpcap: Constify omap4_regulators and xoom_regulators
        regulator: cpcap: Remove unused vsel_shift from struct cpcap_regulator
        dt-bindings: regulator: tps65218: rectify units of LS3
        dt-bindings: regulator: add LS2 load switch documentation
        ...
      32c0ac3a
    • Linus Torvalds's avatar
      Merge tag 'regmap-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap · e48b044e
      Linus Torvalds authored
      Pull regmap updates from Mark Brown:
       "There are only two changes here:
      
         - fix for conflicting attributes on the rbtree node structure
      
         - implementation of main status register support in the interrupt
           code which supports chips that have a register to cut down on the
           number of per-interrupt status registers that need to be checked
           when handling interrupts"
      
      * tag 'regmap-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
        regmap: Remove attribute packed from struct 'regcache_rbtree_node'
        regmap: regmap-irq: Add main status register support
      e48b044e
    • Linus Torvalds's avatar
      Merge tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc · 42eaf185
      Linus Torvalds authored
      Pull MMC updates from Ulf Hansson:
       "MMC core:
         - Fixup max_discard/trim calculations
         - Announce SD specs greater than 4.0
         - Add discard support for SD cards
         - Don't do retries for CMD6 (SWITCH command)
         - Various cleanups and re-structuring
      
        MMC host:
         - cqhci:
            * Add maintainers for eMMC CQHCI driver
         - sdhci:
            * Consolidate WP GPIO code
            * Add ADMA3 DMA support for V4 enabled host
            * Fixup card detect support in pci-o2micro driver
            * Add support for CMDQ and SDMMC pads auto-calibration in tegra
              driver
            * Add DCMD support and CMDQ support, support for i.MX6ULL variant,
              fixup HS400 timing issue and add HS400_ES support for i.MX8QXP
              to esdhc-imx driver
            * Avoid CRC errors by adjusting settings to speed mode and fixup
              card initialization for high speed mode in renesas_sdhi
            * Fixup timeout settings for omap
            * Enable 8 bits bus-width support in atmel-mci
            * Convert some legacy code in jz4740 driver to use modern APIs
            * Send a CMD12 to clear DPSM at errors for STM32 sdmmc mmci
              driver"
      
      * tag 'mmc-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (69 commits)
        mmc:fix a bug when max_discard is 0
        mmc: core: Add a debug print when the card may have been replaced
        mmc: core: Add sd discard timeout
        mmc: core: Add discard support to sd
        mmc: sdhci-esdhc-imx: clear the HALT bit when enable CQE
        mmc: core: do not retry CMD6 in __mmc_switch()
        mmc: core: Convert mmc_align_data_size() into an SDIO specific function
        mmc: core: Move mmc_of_parse_voltage() to host.c
        mmc: core: Convert mmc_regulator_get_ocrmask() to static
        mmc: core: Move regulator helpers to separate file
        mmc: of_mmc_spi: Convert to mmc_of_parse_voltage()
        mmc: core: Drop retries as in-parameter to mmc_wait_for_app_cmd()
        mmc: core: Convert mmc_wait_for_app_cmd() to static
        mmc: renesas_sdhi: Change HW adjustment register according to speed mode
        mmc: mmci: Send a CMD12 to clear the DPSM at errors
        mmc: sdhci-xenon: Fixup already marked switch fall-through
        mmc: sdhci-tegra: drop ->get_ro() implementation
        mmc: sdhci-omap: drop ->get_ro() implementation
        mmc: sdhci: use WP GPIO in sdhci_check_ro()
        mmc: wmt-sdmmc: Drop unused include
        ...
      42eaf185
    • Linus Torvalds's avatar
      Merge tag 'i3c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux · c8d950ab
      Linus Torvalds authored
      Pull i3c updates from Boris Brezillon:
      
       - Add a /* fall-through */ comment in the dw-i3c-master driver
      
       - Update the I3C entries in MAINTAINERS to add an IRC chan
      
      * tag 'i3c/for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
        i3c: master: dw-i3c-master: mark expected switch fall-through
        MAINTAINERS: Add an IRC channel for the I3C subsystem
      c8d950ab
    • Linus Torvalds's avatar
      Merge tag 'mtd/for-5.1' of git://git.infradead.org/linux-mtd · 811c16a2
      Linus Torvalds authored
      Pull MTD updates from Boris Brezillon:
       "Core MTD changes:
         - Use struct_size() where appropriate
         - mtd_{read,write}() as wrappers around mtd_{read,write}_oob()
         - Fix misuse of PTR_ERR() in docg3
         - Coding style improvements in mtdcore.c
      
        SPI NOR changes:
          Core changes:
           - Add support of octal mode I/O transfer
           - Add a bunch of SPI NOR entries to the flash_info table
      
          SPI NOR controller driver changes:
           - cadence-quadspi:
              * Add support for Octal SPI controller
              * write upto 8-bytes data in STIG mode
           - mtk-quadspi:
              * rename config to a common one
              * add SNOR_HWCAPS_READ to spi_nor_hwcaps mask
           - Add Tudor as SPI-NOR co-maintainer
      
        NAND changes:
          NAND core changes:
           - Fourth batch of fixes/cleanup to the raw NAND core impacting
             various controller drivers (Sunxi, Marvell, MTK, TMIO, OMAP2).
           - Check the return code of nand_reset() and nand_readid_op().
           - Remove ->legacy.erase and single_erase().
           - Simplify the locking.
           - Several implicit fall through annotations.
      
          Raw NAND controllers drivers changes:
           - Fix various possible object reference leaks (MTK, JZ4780, Atmel)
           - ST:
              * Add support for STM32 FMC2 NAND flash controller
           - Meson:
              * Add support for Amlogic NAND flash controller
           - Denali:
              * Several cleanup patches
           - Sunxi:
              * Several cleanup patches
           - FSMC:
              * Disable NAND on remove()
              * Reset NAND timings on resume()
      
          SPI-NAND drivers changes:
           - Toshiba:
              * Add support for all Toshiba products.
           - Macronix:
              * Fix ECC status read.
           - Gigadevice:
              * Add support for GD5F1GQ4UExxG"
      
      * tag 'mtd/for-5.1' of git://git.infradead.org/linux-mtd: (64 commits)
        mtd: spi-nor: Fix wrong abbreviation HWCPAS
        mtd: spi-nor: cadence-quadspi: fix spelling mistake: "Couldnt't" -> "Couldn't"
        mtd: spi-nor: Add support for en25qh64
        mtd: spi-nor: Add support for MX25V8035F
        mtd: spi-nor: Add support for EN25Q80A
        mtd: spi-nor: cadence-quadspi: Add support for Octal SPI controller
        dt-bindings: cadence-quadspi: Add new compatible for AM654 SoC
        mtd: spi-nor: split s25fl128s into s25fl128s0 and s25fl128s1
        mtd: spi-nor: cadence-quadspi: write upto 8-bytes data in STIG mode
        mtd: spi-nor: Add support for mx25u3235f
        mtd: rawnand: denali_dt: remove single anonymous clock support
        mtd: rawnand: mtk: fix possible object reference leak
        mtd: rawnand: jz4780: fix possible object reference leak
        mtd: rawnand: atmel: fix possible object reference leak
        mtd: rawnand: fsmc: Disable NAND on remove()
        mtd: rawnand: fsmc: Reset NAND timings on resume()
        mtd: spinand: Add support for GigaDevice GD5F1GQ4UExxG
        mtd: rawnand: denali: remove unused dma_addr field from denali_nand_info
        mtd: rawnand: denali: remove unused function argument 'raw'
        mtd: rawnand: denali: remove unneeded denali_reset_irq() call
        ...
      811c16a2
    • Linus Torvalds's avatar
      Merge tag 'vfio-v5.1-rc1' of git://github.com/awilliam/linux-vfio · a83b0423
      Linus Torvalds authored
      Pull VFIO updates from Alex Williamson:
      
       - Switch mdev to generic UUID API (Andy Shevchenko)
      
       - Fixup platform reset include paths (Masahiro Yamada)
      
       - Fix usage of MINORMASK (Chengguang Xu)
      
       - Remove noise from duplicate spapr table unsets (Alexey Kardashevskiy)
      
       - Restore device state after PM reset (Alex Williamson)
      
       - Ensure memory translation enabled for PCI ROM access (Eric Auger)
      
      * tag 'vfio-v5.1-rc1' of git://github.com/awilliam/linux-vfio:
        vfio_pci: Enable memory accesses before calling pci_map_rom
        vfio/pci: Restore device state on PM transition
        vfio/spapr_tce: Skip unsetting already unset table
        samples/vfio-mdev/mtty: expand minor range when registering chrdev region
        samples/vfio-mdev/mdpy: expand minor range when registering chrdev region
        samples/vfio-mdev/mbochs: expand minor range when registering chrdev region
        vfio: expand minor range when registering chrdev region
        vfio: platform: reset: fix up include directives to remove ccflags-y
        vfio-mdev: Switch to use new generic UUID API
      a83b0423
    • Slavomir Kaslev's avatar
      fs: Make splice() and tee() take into account O_NONBLOCK flag on pipes · ee5e0011
      Slavomir Kaslev authored
      The current implementation of splice() and tee() ignores O_NONBLOCK set
      on pipe file descriptors and checks only the SPLICE_F_NONBLOCK flag for
      blocking on pipe arguments.  This is inconsistent since splice()-ing
      from/to non-pipe file descriptors does take O_NONBLOCK into
      consideration.
      
      Fix this by promoting O_NONBLOCK, when set on a pipe, to
      SPLICE_F_NONBLOCK.
      
      Some context for how the current implementation of splice() leads to
      inconsistent behavior.  In the ongoing work[1] to add VM tracing
      capability to trace-cmd we stream tracing data over named FIFOs or
      vsockets from guests back to the host.
      
      When we receive SIGINT from user to stop tracing, we set O_NONBLOCK on
      the input file descriptor and set SPLICE_F_NONBLOCK for the next call to
      splice().  If splice() was blocked waiting on data from the input FIFO,
      after SIGINT splice() restarts with the same arguments (no
      SPLICE_F_NONBLOCK) and blocks again instead of returning -EAGAIN when no
      data is available.
      
      This differs from the splice() behavior when reading from a vsocket or
      when we're doing a traditional read()/write() loop (trace-cmd's
      --nosplice argument).
      
      With this patch applied we get the same behavior in all situations after
      setting O_NONBLOCK which also matches the behavior of doing a
      read()/write() loop instead of splice().
      
      This change does have potential of breaking users who don't expect
      EAGAIN from splice() when SPLICE_F_NONBLOCK is not set.  OTOH programs
      that set O_NONBLOCK and don't anticipate EAGAIN are arguably buggy[2].
      
       [1] https://github.com/skaslev/trace-cmd/tree/vsock
       [2] https://github.com/torvalds/linux/blob/d47e3da1759230e394096fd742aad423c291ba48/fs/read_write.c#L1425Signed-off-by: default avatarSlavomir Kaslev <kaslevs@vmware.com>
      Reviewed-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ee5e0011
  4. 04 Mar, 2019 7 commits