Now that all users of generic ChaCha code have moved to the core library, there is no longer a need for the generic ChaCha skcpiher driver to export parts of it implementation for reuse by other drivers. So drop the exports, and make the symbols static. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> (cherry picked from commit 22cf705360707ced15f9fe5423938f313c7df536) Bug: 152722841 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ie7a711756d34f1578c32c59cd5e1e8e3ef82368f