1 files changed, 0 insertions, 154 deletions

diff --git a/arch/x86/crypto/glue_helper.c b/arch/x86/crypto/glue_helper.c
index d3d91a0abf88..786ffda1caf4 100644
--- a/arch/x86/crypto/glue_helper.c
+++ b/arch/x86/crypto/glue_helper.c
@@ -12,10 +12,8 @@
 
 #include <linux/module.h>
 #include <crypto/b128ops.h>
-#include <crypto/gf128mul.h>
 #include <crypto/internal/skcipher.h>
 #include <crypto/scatterwalk.h>
-#include <crypto/xts.h>
 #include <asm/crypto/glue_helper.h>
 
 int glue_ecb_req_128bit(const struct common_glue_ctx *gctx,
@@ -226,156 +224,4 @@ int glue_ctr_req_128bit(const struct common_glue_ctx *gctx,
 }
 EXPORT_SYMBOL_GPL(glue_ctr_req_128bit);
 
-static unsigned int __glue_xts_req_128bit(const struct common_glue_ctx *gctx,
-					  void *ctx,
-					  struct skcipher_walk *walk)
-{
-	const unsigned int bsize = 128 / 8;
-	unsigned int nbytes = walk->nbytes;
-	u128 *src = walk->src.virt.addr;
-	u128 *dst = walk->dst.virt.addr;
-	unsigned int num_blocks, func_bytes;
-	unsigned int i;
-
-	/* Process multi-block batch */
-	for (i = 0; i < gctx->num_funcs; i++) {
-		num_blocks = gctx->funcs[i].num_blocks;
-		func_bytes = bsize * num_blocks;
-
-		if (nbytes >= func_bytes) {
-			do {
-				gctx->funcs[i].fn_u.xts(ctx, (u8 *)dst,
-							(const u8 *)src,
-							walk->iv);
-
-				src += num_blocks;
-				dst += num_blocks;
-				nbytes -= func_bytes;
-			} while (nbytes >= func_bytes);
-
-			if (nbytes < bsize)
-				goto done;
-		}
-	}
-
-done:
-	return nbytes;
-}
-
-int glue_xts_req_128bit(const struct common_glue_ctx *gctx,
-			struct skcipher_request *req,
-			common_glue_func_t tweak_fn, void *tweak_ctx,
-			void *crypt_ctx, bool decrypt)
-{
-	const bool cts = (req->cryptlen % XTS_BLOCK_SIZE);
-	const unsigned int bsize = 128 / 8;
-	struct skcipher_request subreq;
-	struct skcipher_walk walk;
-	bool fpu_enabled = false;
-	unsigned int nbytes, tail;
-	int err;
-
-	if (req->cryptlen < XTS_BLOCK_SIZE)
-		return -EINVAL;
-
-	if (unlikely(cts)) {
-		struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
-
-		tail = req->cryptlen % XTS_BLOCK_SIZE + XTS_BLOCK_SIZE;
-
-		skcipher_request_set_tfm(&subreq, tfm);
-		skcipher_request_set_callback(&subreq,
-					      crypto_skcipher_get_flags(tfm),
-					      NULL, NULL);
-		skcipher_request_set_crypt(&subreq, req->src, req->dst,
-					   req->cryptlen - tail, req->iv);
-		req = &subreq;
-	}
-
-	err = skcipher_walk_virt(&walk, req, false);
-	nbytes = walk.nbytes;
-	if (err)
-		return err;
-
-	/* set minimum length to bsize, for tweak_fn */
-	fpu_enabled = glue_fpu_begin(bsize, gctx->fpu_blocks_limit,
-				     &walk, fpu_enabled,
-				     nbytes < bsize ? bsize : nbytes);
-
-	/* calculate first value of T */
-	tweak_fn(tweak_ctx, walk.iv, walk.iv);
-
-	while (nbytes) {
-		nbytes = __glue_xts_req_128bit(gctx, crypt_ctx, &walk);
-
-		err = skcipher_walk_done(&walk, nbytes);
-		nbytes = walk.nbytes;
-	}
-
-	if (unlikely(cts)) {
-		u8 *next_tweak, *final_tweak = req->iv;
-		struct scatterlist *src, *dst;
-		struct scatterlist s[2], d[2];
-		le128 b[2];
-
-		dst = src = scatterwalk_ffwd(s, req->src, req->cryptlen);
-		if (req->dst != req->src)
-			dst = scatterwalk_ffwd(d, req->dst, req->cryptlen);
-
-		if (decrypt) {
-			next_tweak = memcpy(b, req->iv, XTS_BLOCK_SIZE);
-			gf128mul_x_ble(b, b);
-		} else {
-			next_tweak = req->iv;
-		}
-
-		skcipher_request_set_crypt(&subreq, src, dst, XTS_BLOCK_SIZE,
-					   next_tweak);
-
-		err = skcipher_walk_virt(&walk, req, false) ?:
-		      skcipher_walk_done(&walk,
-				__glue_xts_req_128bit(gctx, crypt_ctx, &walk));
-		if (err)
-			goto out;
-
-		scatterwalk_map_and_copy(b, dst, 0, XTS_BLOCK_SIZE, 0);
-		memcpy(b + 1, b, tail - XTS_BLOCK_SIZE);
-		scatterwalk_map_and_copy(b, src, XTS_BLOCK_SIZE,
-					 tail - XTS_BLOCK_SIZE, 0);
-		scatterwalk_map_and_copy(b, dst, 0, tail, 1);
-
-		skcipher_request_set_crypt(&subreq, dst, dst, XTS_BLOCK_SIZE,
-					   final_tweak);
-
-		err = skcipher_walk_virt(&walk, req, false) ?:
-		      skcipher_walk_done(&walk,
-				__glue_xts_req_128bit(gctx, crypt_ctx, &walk));
-	}
-
-out:
-	glue_fpu_end(fpu_enabled);
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(glue_xts_req_128bit);
-
-void glue_xts_crypt_128bit_one(const void *ctx, u8 *dst, const u8 *src,
-			       le128 *iv, common_glue_func_t fn)
-{
-	le128 ivblk = *iv;
-
-	/* generate next IV */
-	gf128mul_x_ble(iv, &ivblk);
-
-	/* CC <- T xor C */
-	u128_xor((u128 *)dst, (const u128 *)src, (u128 *)&ivblk);
-
-	/* PP <- D(Key2,CC) */
-	fn(ctx, dst, dst);
-
-	/* P <- T xor PP */
-	u128_xor((u128 *)dst, (u128 *)dst, (u128 *)&ivblk);
-}
-EXPORT_SYMBOL_GPL(glue_xts_crypt_128bit_one);
-
 MODULE_LICENSE("GPL");