Merge branch 'net-use-read_once-write_once-for-ring-index-accesses'

Jakub Kicinski says:

====================
net: use READ_ONCE/WRITE_ONCE for ring index accesses

Small follow up to the lockless ring stop/start macros.
Update the doc and the drivers suggested by Eric:
https://lore.kernel.org/all/CANn89iJrBGSybMX1FqrhCEMWT3Nnz2=2+aStsbbwpWzKHjk51g@mail.gmail.com/

====================

Link: https://lore.kernel.org/r/20230412015038.674023-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>