ACK/Cmt: [SRU][o/n/j:linux-azure][PATCH v2 0/1] net: mana: Fix RX buf alloc_size alignment and atomic op panic

[Thibault Ferrante]

This patch has been into v6.11-rc4 and so was picked up by Ubuntu-6.11.0-{4,5,6}
so I don't think applying it to oracular is useful, it will be picked up on next rebase.

For J/N : Acked-by: Thibault Ferrante <thibault.ferrante at canonical.com>

On 06-09-2024 19:59, Vinicius Peixoto wrote:
> 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
> 
> v1 -> v2:
> - Fix cover letter subject
> 
> 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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Thibault