102 	struct scatter_walk walk;  in ccm_calculate_auth_mac()  local
118 	scatterwalk_start(&walk, req->src);  in ccm_calculate_auth_mac()
121 		u32 n = scatterwalk_clamp(&walk, len);  in ccm_calculate_auth_mac()
125 			scatterwalk_start(&walk, sg_next(walk.sg));  in ccm_calculate_auth_mac()
126 			n = scatterwalk_clamp(&walk, len);  in ccm_calculate_auth_mac()
129 		p = scatterwalk_map(&walk);  in ccm_calculate_auth_mac()
141 		scatterwalk_advance(&walk, n);  in ccm_calculate_auth_mac()
142 		scatterwalk_done(&walk, 0, len);  in ccm_calculate_auth_mac()
150 	struct skcipher_walk walk;  in ccm_encrypt()  local
163 	err = skcipher_walk_aead_encrypt(&walk, req, false);  in ccm_encrypt()
170 	while (walk.nbytes) {  in ccm_encrypt()
171 		u32 tail = walk.nbytes % AES_BLOCK_SIZE;  in ccm_encrypt()
172 		bool final = walk.nbytes == walk.total;  in ccm_encrypt()
177 		ce_aes_ccm_encrypt(walk.dst.virt.addr, walk.src.virt.addr,  in ccm_encrypt()
178 				   walk.nbytes - tail, ctx->key_enc,  in ccm_encrypt()
179 				   num_rounds(ctx), mac, walk.iv);  in ccm_encrypt()
183 		err = skcipher_walk_done(&walk, tail);  in ccm_encrypt()
204 	struct skcipher_walk walk;  in ccm_decrypt()  local
217 	err = skcipher_walk_aead_decrypt(&walk, req, false);  in ccm_decrypt()
224 	while (walk.nbytes) {  in ccm_decrypt()
225 		u32 tail = walk.nbytes % AES_BLOCK_SIZE;  in ccm_decrypt()
226 		bool final = walk.nbytes == walk.total;  in ccm_decrypt()
231 		ce_aes_ccm_decrypt(walk.dst.virt.addr, walk.src.virt.addr,  in ccm_decrypt()
232 				   walk.nbytes - tail, ctx->key_enc,  in ccm_decrypt()
233 				   num_rounds(ctx), mac, walk.iv);  in ccm_decrypt()
237 		err = skcipher_walk_done(&walk, tail);  in ccm_decrypt()