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  1. 20 Jul, 2020 32 commits
  3. 19 Jul, 2020 8 commits
    • Linus Torvalds's avatar
      Linux 5.8-rc6 · ba47d845
      Linus Torvalds authored
      ba47d845
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-2020-07-19' of... · 92188b41
      Linus Torvalds authored 
      Merge tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into master

Pull perf tooling fixes from Arnaldo Carvalho de Melo:

 - Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI.

 - Set opt->set in libsubcmd's OPT_CALLBACK_SET(). This fixes
   'perf record --switch-output-event event-name' usage"

* tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  tools arch kvm: Sync kvm headers with the kernel sources
  perf tools: Sync hashmap.h with libbpf's
  libsubcmd: Fix OPT_CALLBACK_SET()
      92188b41
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2020-07-19' of... · efb9666e
      Linus Torvalds authored 
      Merge tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull x86 fixes from Thomas Gleixner:
 "A pile of fixes for x86:

   - Fix the I/O bitmap invalidation on XEN PV, which was overlooked in
     the recent ioperm/iopl rework. This caused the TSS and XEN's I/O
     bitmap to get out of sync.

   - Use the proper vectors for HYPERV.

   - Make disabling of stack protector for the entry code work with GCC
     builds which enable stack protector by default. Removing the option
     is not sufficient, it needs an explicit -fno-stack-protector to
     shut it off.

   - Mark check_user_regs() noinstr as it is called from noinstr code.
     The missing annotation causes it to be placed in the text section
     which makes it instrumentable.

   - Add the missing interrupt disable in exc_alignment_check()

   - Fixup a XEN_PV build dependency in the 32bit entry code

   - A few fixes to make the Clang integrated assembler happy

   - Move EFI stub build to the right place for out of tree builds

   - Make prepare_exit_to_usermode() static. It's not longer called from
     ASM code"

* tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Don't add the EFI stub to targets
  x86/entry: Actually disable stack protector
  x86/ioperm: Fix io bitmap invalidation on Xen PV
  x86: math-emu: Fix up 'cmp' insn for clang ias
  x86/entry: Fix vectors to IDTENTRY_SYSVEC for CONFIG_HYPERV
  x86/entry: Add compatibility with IAS
  x86/entry/common: Make prepare_exit_to_usermode() static
  x86/entry: Mark check_user_regs() noinstr
  x86/traps: Disable interrupts in exc_aligment_check()
  x86/entry/32: Fix XEN_PV build dependency
      efb9666e
    • Linus Torvalds's avatar
      Merge tag 'timers-urgent-2020-07-19' of... · 66e4b636
      Linus Torvalds authored 
      Merge tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull timer fixes from Thomas Gleixner:
 "Two fixes for the timer wheel:

   - A timer which is already expired at enqueue time can set the
     base->next_expiry value backwards. As a consequence base->clk can
     be set back as well. This can lead to timers expiring early. Add a
     sanity check to prevent this.

   - When a timer is queued with an expiry time beyond the wheel
     capacity then it should be queued in the bucket of the last wheel
     level which is expiring last.

     The code adjusted the expiry time to the maximum wheel capacity,
     which is only correct when the wheel clock is 0. Aside of that the
     check whether the delta is larger than wheel capacity does not
     check the delta, it checks the expiry value itself. As a result
     timers can expire at random.

     Fix this by checking the right variable and adjust expiry time so
     it becomes base->clock plus capacity which places it into the
     outmost bucket in the last wheel level"

* tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timer: Fix wheel index calculation on last level
  timer: Prevent base->clk from moving backward
      66e4b636
    • Linus Torvalds's avatar
      Merge tag 'sched-urgent-2020-07-19' of... · 43768f7c
      Linus Torvalds authored 
      Merge tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull scheduler fixes from Thomas Gleixner:
 "A set of scheduler fixes:

   - Plug a load average accounting race which was introduced with a
     recent optimization casing load average to show bogus numbers.

   - Fix the rseq CPU id initialization for new tasks. sched_fork() does
     not update the rseq CPU id so the id is the stale id of the parent
     task, which can cause user space data corruption.

   - Handle a 0 return value of task_h_load() correctly in the load
     balancer, which does not decrease imbalance and therefore pulls
     until the maximum number of loops is reached, which might be all
     tasks just created by a fork bomb"

* tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: handle case of task_h_load() returning 0
  sched: Fix unreliable rseq cpu_id for new tasks
  sched: Fix loadavg accounting race
      43768f7c
    • Linus Torvalds's avatar
      Merge tag 'irq-urgent-2020-07-19' of... · 9413cd77
      Linus Torvalds authored 
      Merge tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into master

Pull irq fixes from Thomas Gleixner:
 "Two fixes for the interrupt subsystem:

   - Make the handling of the firmware node consistent and do not free
     the node after the domain has been created successfully. The core
     code stores a pointer to it which can lead to a use after free or
     double free.

     This used to "work" because the pointer was not stored when the
     initial code was written, but at some point later it was required
     to store it. Of course nobody noticed that the existing users break
     that way.

   - Handle affinity setting on inactive interrupts correctly when
     hierarchical irq domains are enabled.

     When interrupts are inactive with the modern hierarchical irqdomain
     design, the interrupt chips are not necessarily in a state where
     affinity changes can be handled. The legacy irq chip design allowed
     this because interrupts are immediately fully initialized at
     allocation time. X86 has a hacky workaround for this, but other
     implementations do not.

     This cased malfunction on GIC-V3. Instead of playing whack a mole
     to find all affected drivers, change the core code to store the
     requested affinity setting and then establish it when the interrupt
     is allocated, which makes the X86 hack go away"

* tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/affinity: Handle affinity setting on inactive interrupts correctly
  irqdomain/treewide: Keep firmware node unconditionally allocated
      9413cd77
    • Linus Torvalds's avatar
      Merge tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb into master · ce20d7bf
      Linus Torvalds authored 
      Pull USB fixes from Greg KH:
 "Here are a few small USB fixes, and one thunderbolt fix, for 5.8-rc6.

  Nothing huge in here, just the normal collection of gadget, dwc2/3,
  serial, and other minor USB driver fixes and id additions. Full
  details are in the shortlog.

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

* tag 'usb-5.8-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: serial: iuu_phoenix: fix memory corruption
  USB: c67x00: fix use after free in c67x00_giveback_urb
  usb: gadget: function: fix missing spinlock in f_uac1_legacy
  usb: gadget: udc: atmel: fix uninitialized read in debug printk
  usb: gadget: udc: atmel: remove outdated comment in usba_ep_disable()
  usb: dwc2: Fix shutdown callback in platform
  usb: cdns3: trace: fix some endian issues
  usb: cdns3: ep0: fix some endian issues
  usb: gadget: udc: gr_udc: fix memleak on error handling path in gr_ep_init()
  usb: gadget: fix langid kernel-doc warning in usbstring.c
  usb: dwc3: pci: add support for the Intel Jasper Lake
  usb: dwc3: pci: add support for the Intel Tiger Lake PCH -H variant
  usb: chipidea: core: add wakeup support for extcon
  USB: serial: option: add Quectel EG95 LTE modem
  thunderbolt: Fix path indices used in USB3 tunnel discovery
  USB: serial: ch341: add new Product ID for CH340
  USB: serial: option: add GosunCn GM500 series
  USB: serial: cypress_m8: enable Simply Automated UPB PIM
      ce20d7bf
    • Linus Torvalds's avatar
      Merge tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping into master · 8c18fc63
      Linus Torvalds authored 
      Pull dma-mapping fixes from Christoph Hellwig:
 "Ensure we always have fully addressable memory in the dma coherent
  pool (Nicolas Saenz Julienne)"

* tag 'dma-mapping-5.8-6' of git://git.infradead.org/users/hch/dma-mapping:
  dma-pool: do not allocate pool memory from CMA
  dma-pool: make sure atomic pool suits device
  dma-pool: introduce dma_guess_pool()
  dma-pool: get rid of dma_in_atomic_pool()
  dma-direct: provide function to check physical memory area validity
      8c18fc63
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