94 	struct skcipher_walk walk;  in __ecb_crypt()  local
97 	err = skcipher_walk_virt(&walk, req, false);  in __ecb_crypt()
99 	while (walk.nbytes >= AES_BLOCK_SIZE) {  in __ecb_crypt()
100 		unsigned int blocks = walk.nbytes / AES_BLOCK_SIZE;  in __ecb_crypt()
102 		if (walk.nbytes < walk.total)  in __ecb_crypt()
104 					    walk.stride / AES_BLOCK_SIZE);  in __ecb_crypt()
107 		fn(walk.dst.virt.addr, walk.src.virt.addr, ctx->rk,  in __ecb_crypt()
110 		err = skcipher_walk_done(&walk,  in __ecb_crypt()
111 					 walk.nbytes - blocks * AES_BLOCK_SIZE);  in __ecb_crypt()
168 	struct skcipher_walk walk;  in cbc_decrypt()  local
171 	err = skcipher_walk_virt(&walk, req, false);  in cbc_decrypt()
173 	while (walk.nbytes >= AES_BLOCK_SIZE) {  in cbc_decrypt()
174 		unsigned int blocks = walk.nbytes / AES_BLOCK_SIZE;  in cbc_decrypt()
176 		if (walk.nbytes < walk.total)  in cbc_decrypt()
178 					    walk.stride / AES_BLOCK_SIZE);  in cbc_decrypt()
181 		aesbs_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr,  in cbc_decrypt()
183 				  walk.iv);  in cbc_decrypt()
185 		err = skcipher_walk_done(&walk,  in cbc_decrypt()
186 					 walk.nbytes - blocks * AES_BLOCK_SIZE);  in cbc_decrypt()
239 	struct skcipher_walk walk;  in ctr_encrypt()  local
243 	err = skcipher_walk_virt(&walk, req, false);  in ctr_encrypt()
245 	while (walk.nbytes > 0) {  in ctr_encrypt()
246 		const u8 *src = walk.src.virt.addr;  in ctr_encrypt()
247 		u8 *dst = walk.dst.virt.addr;  in ctr_encrypt()
248 		int bytes = walk.nbytes;  in ctr_encrypt()
253 		else if (walk.nbytes < walk.total)  in ctr_encrypt()
257 		aesbs_ctr_encrypt(dst, src, ctx->rk, ctx->rounds, bytes, walk.iv);  in ctr_encrypt()
261 			memcpy(walk.dst.virt.addr,  in ctr_encrypt()
264 		err = skcipher_walk_done(&walk, walk.nbytes - bytes);  in ctr_encrypt()
346 	struct skcipher_walk walk;  in __xts_crypt()  local
362 	err = skcipher_walk_virt(&walk, req, true);  in __xts_crypt()
366 	crypto_cipher_encrypt_one(ctx->tweak_tfm, walk.iv, walk.iv);  in __xts_crypt()
368 	while (walk.nbytes >= AES_BLOCK_SIZE) {  in __xts_crypt()
369 		unsigned int blocks = walk.nbytes / AES_BLOCK_SIZE;  in __xts_crypt()
372 		if (walk.nbytes < walk.total) {  in __xts_crypt()
374 					    walk.stride / AES_BLOCK_SIZE);  in __xts_crypt()
379 		fn(walk.dst.virt.addr, walk.src.virt.addr, ctx->key.rk,  in __xts_crypt()
380 		   ctx->key.rounds, blocks, walk.iv, reorder_last_tweak);  in __xts_crypt()
382 		err = skcipher_walk_done(&walk,  in __xts_crypt()
383 					 walk.nbytes - blocks * AES_BLOCK_SIZE);  in __xts_crypt()