** Tags removed: verification-needed-jammy-linux-azure 
verification-needed-noble-linux-azure
** Tags added: verification-done-jammy-linux-azure 
verification-done-noble-linux-azure

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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 Committed
Status in linux-azure source package in Noble:
  Fix Committed
Status in linux-azure source package in Oracular:
  Fix Committed

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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