92 static int __ecb_crypt(struct skcipher_request *req,  in __ecb_crypt()  argument
96 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in __ecb_crypt()
101 	err = skcipher_walk_virt(&walk, req, false);  in __ecb_crypt()
121 static int ecb_encrypt(struct skcipher_request *req)  in ecb_encrypt()  argument
123 	return __ecb_crypt(req, aesbs_ecb_encrypt);  in ecb_encrypt()
126 static int ecb_decrypt(struct skcipher_request *req)  in ecb_decrypt()  argument
128 	return __ecb_crypt(req, aesbs_ecb_decrypt);  in ecb_decrypt()
154 static int cbc_encrypt(struct skcipher_request *req)  in cbc_encrypt()  argument
156 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in cbc_encrypt()
161 	err = skcipher_walk_virt(&walk, req, false);  in cbc_encrypt()
177 static int cbc_decrypt(struct skcipher_request *req)  in cbc_decrypt()  argument
179 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in cbc_decrypt()
184 	err = skcipher_walk_virt(&walk, req, false);  in cbc_decrypt()
205 static int ctr_encrypt(struct skcipher_request *req)  in ctr_encrypt()  argument
207 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in ctr_encrypt()
213 	err = skcipher_walk_virt(&walk, req, false);  in ctr_encrypt()
271 static int __xts_crypt(struct skcipher_request *req, bool encrypt,  in __xts_crypt()  argument
275 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);  in __xts_crypt()
277 	int tail = req->cryptlen % (8 * AES_BLOCK_SIZE);  in __xts_crypt()
286 	if (req->cryptlen < AES_BLOCK_SIZE)  in __xts_crypt()
291 		int xts_blocks = DIV_ROUND_UP(req->cryptlen,  in __xts_crypt()
296 					      skcipher_request_flags(req),  in __xts_crypt()
298 		skcipher_request_set_crypt(&subreq, req->src, req->dst,  in __xts_crypt()
300 					   req->iv);  in __xts_crypt()
301 		req = &subreq;  in __xts_crypt()
306 	err = skcipher_walk_virt(&walk, req, false);  in __xts_crypt()
348 	dst = src = scatterwalk_ffwd(sg_src, req->src, req->cryptlen);  in __xts_crypt()
349 	if (req->dst != req->src)  in __xts_crypt()
350 		dst = scatterwalk_ffwd(sg_dst, req->dst, req->cryptlen);  in __xts_crypt()
352 	skcipher_request_set_crypt(req, src, dst, AES_BLOCK_SIZE + tail,  in __xts_crypt()
353 				   req->iv);  in __xts_crypt()
355 	err = skcipher_walk_virt(&walk, req, false);  in __xts_crypt()
376 static int xts_encrypt(struct skcipher_request *req)  in xts_encrypt()  argument
378 	return __xts_crypt(req, true, aesbs_xts_encrypt);  in xts_encrypt()
381 static int xts_decrypt(struct skcipher_request *req)  in xts_decrypt()  argument
383 	return __xts_crypt(req, false, aesbs_xts_decrypt);  in xts_decrypt()