On Wed, Oct 01, 2025 at 11:02:04PM +0200, Ard Biesheuvel wrote:

From: Ard Biesheuvel <ardb@kernel.org>

Encapsulate kernel_neon_begin() and kernel_neon_end() using a 'ksimd'
cleanup guard. This hides the prototype of those functions, allowing
them to be changed for arm64 but not ARM, without breaking code that is
shared between those architectures (RAID6, AEGIS-128)

It probably makes sense to expose this API more widely across
architectures, as it affords more flexibility to the arch code to
plumb it in, while imposing more rigid rules regarding the start/end
bookends appearing in matched pairs.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

Reviewed-by: Kees Cook <kees@kernel.org>

-- 
Kees Cook