[SRU][j:linux-azure][PATCH 0/1] net: mana: Fix RX buf alloc_size alignment and atomic op panic

[Vinicius Peixoto]

BugLink: https://bugs.launchpad.net/bugs/2079854

[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

Haiyang Zhang (1):
  net: mana: Fix RX buf alloc_size alignment and atomic op panic

 drivers/net/ethernet/microsoft/mana/mana_en.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

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2.43.0