1. 16 Dec, 2021 19 commits
  2. 15 Dec, 2021 1 commit
  3. 14 Dec, 2021 3 commits
    • Thomas Gleixner's avatar
      Merge branch 'irq/urgent' into irq/msi · 09eb3ad5
      Thomas Gleixner authored
      to pick up the PCI/MSI-x fixes.
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      09eb3ad5
    • Thomas Gleixner's avatar
      PCI/MSI: Clear PCI_MSIX_FLAGS_MASKALL on error · 94185adb
      Thomas Gleixner authored
      PCI_MSIX_FLAGS_MASKALL is set in the MSI-X control register at MSI-X
      interrupt setup time. It's cleared on success, but the error handling path
      only clears the PCI_MSIX_FLAGS_ENABLE bit.
      
      That's incorrect as the reset state of the PCI_MSIX_FLAGS_MASKALL bit is
      zero. That can be observed via lspci:
      
              Capabilities: [b0] MSI-X: Enable- Count=67 Masked+
      
      Clear the bit in the error path to restore the reset state.
      
      Fixes: 43855395 ("PCI/MSI: Enable and mask MSI-X early")
      Reported-by: default avatarStefan Roese <sr@denx.de>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Tested-by: default avatarStefan Roese <sr@denx.de>
      Cc: linux-pci@vger.kernel.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Michal Simek <michal.simek@xilinx.com>
      Cc: Marek Vasut <marex@denx.de>
      Cc: stable@vger.kernel.org
      Link: https://lore.kernel.org/r/87tufevoqx.ffs@tglx
      94185adb
    • Stefan Roese's avatar
      PCI/MSI: Mask MSI-X vectors only on success · 83dbf898
      Stefan Roese authored
      Masking all unused MSI-X entries is done to ensure that a crash kernel
      starts from a clean slate, which correponds to the reset state of the
      device as defined in the PCI-E specificion 3.0 and later:
      
       Vector Control for MSI-X Table Entries
       --------------------------------------
      
       "00: Mask bit:  When this bit is set, the function is prohibited from
                       sending a message using this MSI-X Table entry.
                       ...
                       This bit’s state after reset is 1 (entry is masked)."
      
      A Marvell NVME device fails to deliver MSI interrupts after trying to
      enable MSI-X interrupts due to that masking. It seems to take the MSI-X
      mask bits into account even when MSI-X is disabled.
      
      While not specification compliant, this can be cured by moving the masking
      into the success path, so that the MSI-X table entries stay in device reset
      state when the MSI-X setup fails.
      
      [ tglx: Move it into the success path, add comment and amend changelog ]
      
      Fixes: aa8092c1d1f1 ("PCI/MSI: Mask all unused MSI-X entries")                                                                                                                                                                                                                 
      Signed-off-by: default avatarStefan Roese <sr@denx.de>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Cc: linux-pci@vger.kernel.org
      Cc: Bjorn Helgaas <bhelgaas@google.com>
      Cc: Michal Simek <michal.simek@xilinx.com>
      Cc: Marek Vasut <marex@denx.de>
      Cc: stable@vger.kernel.org
      Link: https://lore.kernel.org/r/20211210161025.3287927-1-sr@denx.de
      83dbf898
  4. 12 Dec, 2021 14 commits
  5. 11 Dec, 2021 3 commits
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of... · bbdff6d5
      Linus Torvalds authored
      Merge tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tools fixes from Arnaldo Carvalho de Melo:
      
       - Prevent out-of-bounds access to per sample registers.
      
       - Fix NULL vs IS_ERR_OR_NULL() checking on the python binding.
      
       - Intel PT fixes, half of those are one-liners:
            - Fix some PGE (packet generation enable/control flow packets) usage.
            - Fix sync state when a PSB (synchronization) packet is found.
            - Fix intel_pt_fup_event() assumptions about setting state type.
            - Fix state setting when receiving overflow (OVF) packet.
            - Fix next 'err' value, walking trace.
            - Fix missing 'instruction' events with 'q' option.
            - Fix error timestamp setting on the decoder error path.
      
      * tag 'perf-tools-fixes-for-v5.16-2021-12-11' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf python: Fix NULL vs IS_ERR_OR_NULL() checking
        perf intel-pt: Fix error timestamp setting on the decoder error path
        perf intel-pt: Fix missing 'instruction' events with 'q' option
        perf intel-pt: Fix next 'err' value, walking trace
        perf intel-pt: Fix state setting when receiving overflow (OVF) packet
        perf intel-pt: Fix intel_pt_fup_event() assumptions about setting state type
        perf intel-pt: Fix sync state when a PSB (synchronization) packet is found
        perf intel-pt: Fix some PGE (packet generation enable/control flow packets) usage
        perf tools: Prevent out-of-bounds access to registers
      bbdff6d5
    • Linus Torvalds's avatar
      Merge tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block · eccea80b
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
       "A few block fixes that should go into this release:
      
         - NVMe pull request:
              - set ana_log_size to 0 after freeing ana_log_buf (Hou Tao)
              - show subsys nqn for duplicate cntlids (Keith Busch)
              - disable namespace access for unsupported metadata (Keith
                Busch)
              - report write pointer for a full zone as zone start + zone len
                (Niklas Cassel)
              - fix use after free when disconnecting a reconnecting ctrl
                (Ruozhu Li)
              - fix a list corruption in nvmet-tcp (Sagi Grimberg)
      
         - Fix for a regression on DIO single bio async IO (Pavel)
      
         - ioprio seteuid fix (Davidlohr)
      
         - mtd fix that subsequently got reverted as it was broken, will get
           re-done and submitted for the next round
      
         - Two MD fixes via Song (Markus, zhangyue)"
      
      * tag 'block-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
        Revert "mtd_blkdevs: don't scan partitions for plain mtdblock"
        block: fix ioprio_get(IOPRIO_WHO_PGRP) vs setuid(2)
        md: fix double free of mddev->private in autorun_array()
        md: fix update super 1.0 on rdev size change
        nvmet-tcp: fix possible list corruption for unexpected command failure
        block: fix single bio async DIO error handling
        nvme: fix use after free when disconnecting a reconnecting ctrl
        nvme-multipath: set ana_log_size to 0 after free ana_log_buf
        mtd_blkdevs: don't scan partitions for plain mtdblock
        nvme: report write pointer for a full zone as zone start + zone len
        nvme: disable namespace access for unsupported metadata
        nvme: show subsys nqn for duplicate cntlids
      eccea80b
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block · f152165a
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
       "A few fixes that are all bound for stable:
      
         - Two syzbot reports for io-wq that turned out to be separate fixes,
           but ultimately very closely related
      
         - io_uring task_work running on cancelations"
      
      * tag 'io_uring-5.16-2021-12-10' of git://git.kernel.dk/linux-block:
        io-wq: check for wq exit after adding new worker task_work
        io_uring: ensure task_work gets run as part of cancelations
        io-wq: remove spurious bit clear on task_work addition
      f152165a