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Subject[PATCH v3 0/3] hv: vmbus: add fuzz testing to hv device
This patchset introduces a testing framework for Hyper-V drivers.
This framework allows us to introduce delays in the packet receive
path on a per-device basis. While the current code only supports
introducing arbitrary delays in the host/guest communication path,
we intend to expand this to support error injection in the future.

changes in v3:
patch 2: change call to IS_ERR_OR_NULL, to IS_ERR.

patch 3: Align python tool to match Linux coding style.

Changes in v2:
Patch 1: As per Vitaly's suggestion, wrapped the test code under an
#ifdef and updated the Kconfig file, so that the test code
will only be used when the config option is set to true.
(default is false).

Updated hyperv_vmbus header to contain new #ifdef with new
new functions for the test code.

Patch 2: Moved code from under sysfs to debugfs and wrapped it under
the new ifdef.

Updated MAINTAINERS file with new debugfs-hyperv file under
the section for hyperv.

Patch 3: Updated testing tool with new debugfs location.

Branden Bonaby (3):
drivers: hv: vmbus: Introduce latency testing
drivers: hv: vmbus: add fuzz test attributes to debugfs
tools: hv: add vmbus testing tool

Documentation/ABI/testing/debugfs-hyperv | 21 ++
drivers/hv/Kconfig | 7 +
drivers/hv/connection.c | 3 +
drivers/hv/hyperv_vmbus.h | 20 ++
drivers/hv/ring_buffer.c | 7 +
drivers/hv/vmbus_drv.c | 167 +++++++++++
include/linux/hyperv.h | 21 ++
tools/hv/vmbus_testing | 342 +++++++++++++++++++++++
9 files changed, 589 insertions(+)
create mode 100644 Documentation/ABI/testing/debugfs-hyperv
create mode 100644 tools/hv/vmbus_testing


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