46 	int err;  in setkey()  local
48 	err = xts_verify_key(parent, key, keylen);  in setkey()
49 	if (err)  in setkey()
50 		return err;  in setkey()
63 	err = crypto_cipher_setkey(tweak, key + keylen, keylen);  in setkey()
66 	if (err)  in setkey()
67 		return err;  in setkey()
74 	err = crypto_skcipher_setkey(child, key, keylen);  in setkey()
78 	return err;  in setkey()
95 	int err;  in xor_tweak()  local
102 	err = skcipher_walk_virt(&w, req, false);  in xor_tweak()
131 		err = skcipher_walk_done(&w, avail);  in xor_tweak()
134 	return err;  in xor_tweak()
147 static void cts_done(struct crypto_async_request *areq, int err)  in cts_done()  argument
152 	if (!err) {  in cts_done()
160 	skcipher_request_complete(req, err);  in cts_done()
172 	int err;  in cts_final()  local
190 	err = crypt(subreq);  in cts_final()
191 	if (err)  in cts_final()
192 		return err;  in cts_final()
201 static void encrypt_done(struct crypto_async_request *areq, int err)  in encrypt_done()  argument
205 	if (!err) {  in encrypt_done()
209 		err = xor_tweak_post(req, true);  in encrypt_done()
211 		if (!err && unlikely(req->cryptlen % XTS_BLOCK_SIZE)) {  in encrypt_done()
212 			err = cts_final(req, crypto_skcipher_encrypt);  in encrypt_done()
213 			if (err == -EINPROGRESS)  in encrypt_done()
218 	skcipher_request_complete(req, err);  in encrypt_done()
221 static void decrypt_done(struct crypto_async_request *areq, int err)  in decrypt_done()  argument
225 	if (!err) {  in decrypt_done()
229 		err = xor_tweak_post(req, false);  in decrypt_done()
231 		if (!err && unlikely(req->cryptlen % XTS_BLOCK_SIZE)) {  in decrypt_done()
232 			err = cts_final(req, crypto_skcipher_decrypt);  in decrypt_done()
233 			if (err == -EINPROGRESS)  in decrypt_done()
238 	skcipher_request_complete(req, err);  in decrypt_done()
265 	int err;  in encrypt()  local
267 	err = init_crypt(req, encrypt_done) ?:  in encrypt()
272 	if (err || likely((req->cryptlen % XTS_BLOCK_SIZE) == 0))  in encrypt()
273 		return err;  in encrypt()
282 	int err;  in decrypt()  local
284 	err = init_crypt(req, decrypt_done) ?:  in decrypt()
289 	if (err || likely((req->cryptlen % XTS_BLOCK_SIZE) == 0))  in decrypt()
290 		return err;  in decrypt()
345 	int err;  in create()  local
370 	err = crypto_grab_skcipher(&ctx->spawn, cipher_name, 0, mask);  in create()
371 	if (err == -ENOENT) {  in create()
372 		err = -ENAMETOOLONG;  in create()
377 		err = crypto_grab_skcipher(&ctx->spawn, ctx->name, 0, mask);  in create()
380 	if (err)  in create()
385 	err = -EINVAL;  in create()
392 	err = crypto_inst_setname(skcipher_crypto_instance(inst), "xts",  in create()
394 	if (err)  in create()
397 	err = -EINVAL;  in create()
417 			err = -ENAMETOOLONG;  in create()
444 	err = skcipher_register_instance(tmpl, inst);  in create()
445 	if (err)  in create()
449 	return err;  in create()