net/tcp-ao: Use stack-allocated MAC and traffic_key buffers

Now that the maximum MAC and traffic key lengths are statically-known
small values, allocate MACs and traffic keys on the stack instead of
with kmalloc.  This eliminates multiple failure-prone GFP_ATOMIC
allocations.

Note that some cases such as tcp_ao_prepare_reset() are left unchanged
for now since they would require slightly wider changes.

Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Link: https://patch.msgid.link/20260427172727.9310-4-ebiggers@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

0 files changed, 0 insertions, 0 deletions