** Changed in: linux-azure (Ubuntu Oracular)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2079854
Title:
net: mana: Fix RX buf alloc_size alignment and atomic op panic
Status in linux-azure package in Ubuntu:
Fix Committed
Status in linux-azure source package in Jammy:
Fix Released
Status in linux-azure source package in Noble:
Fix Released
Status in linux-azure source package in Oracular:
Fix Released
Bug description:
[Impact]
Microsoft has requested us to backport the following bugfix:
32316f676b4e ("net: mana: Fix RX buf alloc_size alignment and atomic op
panic")
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=32316f676b4e
[Fix]
Clean-cherry pick to the trees (oracular/noble/jammy) containing the
following break commit:
80f6215b450e ("net: mana: Add support for jumbo frame")
[Test plan]
Compile tested only.
[Where problems could occur]
This is a minor adjustment to the allocated size for MANA RX buffers,
fixing the alignment of the resulting SKB in order to improve
performance and avoid alignment faults during atomic operations on
ARM64. As such, the regression risk seems to be low (especially
considering the allocated size for the buffer will end up being
bigger, not smaller), but any issues here would impact the reception
of network packets in MANA.
[Other info]
SF #00394982
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