111 	struct scatter_walk walk;  in ccm_calculate_auth_mac()  local
127 	scatterwalk_start(&walk, req->src);  in ccm_calculate_auth_mac()
130 		u32 n = scatterwalk_clamp(&walk, len);  in ccm_calculate_auth_mac()
134 			scatterwalk_start(&walk, sg_next(walk.sg));  in ccm_calculate_auth_mac()
135 			n = scatterwalk_clamp(&walk, len);  in ccm_calculate_auth_mac()
137 		p = scatterwalk_map(&walk);  in ccm_calculate_auth_mac()
143 		scatterwalk_advance(&walk, n);  in ccm_calculate_auth_mac()
144 		scatterwalk_done(&walk, 0, len);  in ccm_calculate_auth_mac()
153 	struct blkcipher_walk walk;  in ccm_encrypt()  local
180 	blkcipher_walk_init(&walk, dst, src, len);  in ccm_encrypt()
181 	err = blkcipher_aead_walk_virt_block(&desc, &walk, aead,  in ccm_encrypt()
184 	while (walk.nbytes) {  in ccm_encrypt()
185 		u32 tail = walk.nbytes % AES_BLOCK_SIZE;  in ccm_encrypt()
187 		if (walk.nbytes == len)  in ccm_encrypt()
190 		ce_aes_ccm_encrypt(walk.dst.virt.addr, walk.src.virt.addr,  in ccm_encrypt()
191 				   walk.nbytes - tail, ctx->key_enc,  in ccm_encrypt()
192 				   num_rounds(ctx), mac, walk.iv);  in ccm_encrypt()
194 		len -= walk.nbytes - tail;  in ccm_encrypt()
195 		err = blkcipher_walk_done(&desc, &walk, tail);  in ccm_encrypt()
218 	struct blkcipher_walk walk;  in ccm_decrypt()  local
245 	blkcipher_walk_init(&walk, dst, src, len);  in ccm_decrypt()
246 	err = blkcipher_aead_walk_virt_block(&desc, &walk, aead,  in ccm_decrypt()
249 	while (walk.nbytes) {  in ccm_decrypt()
250 		u32 tail = walk.nbytes % AES_BLOCK_SIZE;  in ccm_decrypt()
252 		if (walk.nbytes == len)  in ccm_decrypt()
255 		ce_aes_ccm_decrypt(walk.dst.virt.addr, walk.src.virt.addr,  in ccm_decrypt()
256 				   walk.nbytes - tail, ctx->key_enc,  in ccm_decrypt()
257 				   num_rounds(ctx), mac, walk.iv);  in ccm_decrypt()
259 		len -= walk.nbytes - tail;  in ccm_decrypt()
260 		err = blkcipher_walk_done(&desc, &walk, tail);  in ccm_decrypt()