From 217afccf65064709fb032652ee17cc0a8f68b7b5 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Mon, 19 Feb 2018 23:48:25 -0800 Subject: crypto: lrw - remove lrw_crypt() Now that all users of lrw_crypt() have been removed in favor of the LRW template wrapping an ECB mode algorithm, remove lrw_crypt(). Also remove crypto/lrw.h as that is no longer needed either; and fold 'struct lrw_table_ctx' into 'struct priv', lrw_init_table() into setkey(), and lrw_free_table() into exit_tfm(). Signed-off-by: Eric Biggers Signed-off-by: Herbert Xu --- include/crypto/lrw.h | 44 -------------------------------------------- 1 file changed, 44 deletions(-) delete mode 100644 include/crypto/lrw.h (limited to 'include') diff --git a/include/crypto/lrw.h b/include/crypto/lrw.h deleted file mode 100644 index a9d44c06d081..000000000000 --- a/include/crypto/lrw.h +++ /dev/null @@ -1,44 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _CRYPTO_LRW_H -#define _CRYPTO_LRW_H - -#include - -struct scatterlist; -struct gf128mul_64k; -struct blkcipher_desc; - -#define LRW_BLOCK_SIZE 16 - -struct lrw_table_ctx { - /* optimizes multiplying a random (non incrementing, as at the - * start of a new sector) value with key2, we could also have - * used 4k optimization tables or no optimization at all. In the - * latter case we would have to store key2 here */ - struct gf128mul_64k *table; - /* stores: - * key2*{ 0,0,...0,0,0,0,1 }, key2*{ 0,0,...0,0,0,1,1 }, - * key2*{ 0,0,...0,0,1,1,1 }, key2*{ 0,0,...0,1,1,1,1 } - * key2*{ 0,0,...1,1,1,1,1 }, etc - * needed for optimized multiplication of incrementing values - * with key2 */ - be128 mulinc[128]; -}; - -int lrw_init_table(struct lrw_table_ctx *ctx, const u8 *tweak); -void lrw_free_table(struct lrw_table_ctx *ctx); - -struct lrw_crypt_req { - be128 *tbuf; - unsigned int tbuflen; - - struct lrw_table_ctx *table_ctx; - void *crypt_ctx; - void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes); -}; - -int lrw_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, - struct scatterlist *src, unsigned int nbytes, - struct lrw_crypt_req *req); - -#endif /* _CRYPTO_LRW_H */ -- cgit v1.2.3