[PATCH 0/6] PCI: hv: VMbus requestor and related fixes

[Andrea Parri (Microsoft)]

Changes since RFC [1]:

  - Rebase on hyperv-fixes (although more likely -next material)
  - Fix handling of messages with transaction ID of 0
  - Avoid reading trans_id from the ring buffer
  - Move hv_pci_request_addr_match()&co. to VMbus
  - Introduce primitives to lock and unlock the requestor
  - Improve comments and log messages

The series got bigger (mainly due to a certain re-factoring in VMbus): the
hv_pci changes are in patches #2 and #6.  Let me stress that the "PCI: hv"
patches and the "Drivers: hv: vmbus" patches below are inter-dependent.

[1] https://lkml.kernel.org/r/20220328144244.100228-1-parri.andrea@xxxxxxxxx

Thanks,
  Andrea

Andrea Parri (Microsoft) (6):
  Drivers: hv: vmbus: Fix handling of messages with transaction ID of
    zero
  PCI: hv: Use vmbus_requestor to generate transaction IDs for VMbus
    hardening
  Drivers: hv: vmbus: Introduce vmbus_sendpacket_getid()
  Drivers: hv: vmbus: Introduce vmbus_request_addr_match()
  Drivers: hv: vmbus: Introduce {lock,unlock}_requestor()
  PCI: hv: Fix synchronization between channel callback and
    hv_compose_msi_msg()

 drivers/hv/channel.c                | 116 +++++++++++++++++++++-------
 drivers/hv/hyperv_vmbus.h           |   2 +-
 drivers/hv/ring_buffer.c            |  14 +++-
 drivers/pci/controller/pci-hyperv.c |  68 ++++++++++++----
 include/linux/hyperv.h              |  27 +++++++
 5 files changed, 179 insertions(+), 48 deletions(-)

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2.25.1