Creating 2 new compile-time constants for internal use, in preparation for the removal of VLAs[1] from crypto code. All ciphers implemented in Linux have a block size less than or equal to 16 bytes and the most demanding hw require 16 bytes alignment for the block buffer.
[1] http://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qpxydaacu1rq...@mail.gmail.com Signed-off-by: Salvatore Mesoraca <s.mesorac...@gmail.com> --- crypto/internal.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/crypto/internal.h b/crypto/internal.h index 9a3f399..89ae41e 100644 --- a/crypto/internal.h +++ b/crypto/internal.h @@ -26,6 +26,14 @@ #include <linux/rwsem.h> #include <linux/slab.h> +/* + * Maximum values for blocksize and alignmask, used to allocate + * static buffers that are big enough for any combination of + * ciphers and architectures. + */ +#define MAX_BLOCKSIZE 16 +#define MAX_ALIGNMASK 15 + /* Crypto notification events. */ enum { CRYPTO_MSG_ALG_REQUEST, -- 1.9.1
