Public bug reported:
SRU Justification:
[Impact]
This change is needed to avoid potential race of accessing the 'vq' pointer
[Fix]
The fix adds memory barrier for the is_ready flag and the 'vq' pointer access
in mlxbf_tmfifo_virtio_find_vqs(), so updated in vq will be visible before
accessing this pointer.
[Test Case]
Same functionality and testing as on BlueField-1/2/2. No functionality change.
[Regression Potential]
Same behavior from user perspective.
** Affects: linux-bluefield (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2016039
Title:
mlxbf-tmfifo: fix potential race
Status in linux-bluefield package in Ubuntu:
New
Bug description:
SRU Justification:
[Impact]
This change is needed to avoid potential race of accessing the 'vq' pointer
[Fix]
The fix adds memory barrier for the is_ready flag and the 'vq' pointer access
in mlxbf_tmfifo_virtio_find_vqs(), so updated in vq will be visible before
accessing this pointer.
[Test Case]
Same functionality and testing as on BlueField-1/2/2. No functionality change.
[Regression Potential]
Same behavior from user perspective.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2016039/+subscriptions
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