2 * Support for Intel AES-NI instructions. This file contains glue
3 * code, the real AES implementation is in intel-aes_asm.S.
5 * Copyright (C) 2008, Intel Corp.
6 * Author: Huang Ying <ying.huang@intel.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
14 #include <linux/hardirq.h>
15 #include <linux/types.h>
16 #include <linux/crypto.h>
17 #include <linux/err.h>
18 #include <crypto/algapi.h>
19 #include <crypto/aes.h>
20 #include <crypto/cryptd.h>
24 #if defined(CONFIG_CRYPTO_CTR) || defined(CONFIG_CRYPTO_CTR_MODULE)
28 #if defined(CONFIG_CRYPTO_LRW) || defined(CONFIG_CRYPTO_LRW_MODULE)
32 #if defined(CONFIG_CRYPTO_PCBC) || defined(CONFIG_CRYPTO_PCBC_MODULE)
36 #if defined(CONFIG_CRYPTO_XTS) || defined(CONFIG_CRYPTO_XTS_MODULE)
40 struct async_aes_ctx {
41 struct cryptd_ablkcipher *cryptd_tfm;
44 #define AESNI_ALIGN 16
45 #define AES_BLOCK_MASK (~(AES_BLOCK_SIZE-1))
47 asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
48 unsigned int key_len);
49 asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out,
51 asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out,
53 asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out,
54 const u8 *in, unsigned int len);
55 asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out,
56 const u8 *in, unsigned int len);
57 asmlinkage void aesni_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out,
58 const u8 *in, unsigned int len, u8 *iv);
59 asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out,
60 const u8 *in, unsigned int len, u8 *iv);
62 static inline int kernel_fpu_using(void)
64 if (in_interrupt() && !(read_cr0() & X86_CR0_TS))
69 static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx)
71 unsigned long addr = (unsigned long)raw_ctx;
72 unsigned long align = AESNI_ALIGN;
74 if (align <= crypto_tfm_ctx_alignment())
76 return (struct crypto_aes_ctx *)ALIGN(addr, align);
79 static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx,
80 const u8 *in_key, unsigned int key_len)
82 struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx);
83 u32 *flags = &tfm->crt_flags;
86 if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 &&
87 key_len != AES_KEYSIZE_256) {
88 *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
92 if (kernel_fpu_using())
93 err = crypto_aes_expand_key(ctx, in_key, key_len);
96 err = aesni_set_key(ctx, in_key, key_len);
103 static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
104 unsigned int key_len)
106 return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len);
109 static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
111 struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
113 if (kernel_fpu_using())
114 crypto_aes_encrypt_x86(ctx, dst, src);
117 aesni_enc(ctx, dst, src);
122 static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
124 struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
126 if (kernel_fpu_using())
127 crypto_aes_decrypt_x86(ctx, dst, src);
130 aesni_dec(ctx, dst, src);
135 static struct crypto_alg aesni_alg = {
137 .cra_driver_name = "aes-aesni",
139 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
140 .cra_blocksize = AES_BLOCK_SIZE,
141 .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
143 .cra_module = THIS_MODULE,
144 .cra_list = LIST_HEAD_INIT(aesni_alg.cra_list),
147 .cia_min_keysize = AES_MIN_KEY_SIZE,
148 .cia_max_keysize = AES_MAX_KEY_SIZE,
149 .cia_setkey = aes_set_key,
150 .cia_encrypt = aes_encrypt,
151 .cia_decrypt = aes_decrypt
156 static void __aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
158 struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
160 aesni_enc(ctx, dst, src);
163 static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
165 struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
167 aesni_dec(ctx, dst, src);
170 static struct crypto_alg __aesni_alg = {
171 .cra_name = "__aes-aesni",
172 .cra_driver_name = "__driver-aes-aesni",
174 .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
175 .cra_blocksize = AES_BLOCK_SIZE,
176 .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
178 .cra_module = THIS_MODULE,
179 .cra_list = LIST_HEAD_INIT(__aesni_alg.cra_list),
182 .cia_min_keysize = AES_MIN_KEY_SIZE,
183 .cia_max_keysize = AES_MAX_KEY_SIZE,
184 .cia_setkey = aes_set_key,
185 .cia_encrypt = __aes_encrypt,
186 .cia_decrypt = __aes_decrypt
191 static int ecb_encrypt(struct blkcipher_desc *desc,
192 struct scatterlist *dst, struct scatterlist *src,
195 struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
196 struct blkcipher_walk walk;
199 blkcipher_walk_init(&walk, dst, src, nbytes);
200 err = blkcipher_walk_virt(desc, &walk);
203 while ((nbytes = walk.nbytes)) {
204 aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
205 nbytes & AES_BLOCK_MASK);
206 nbytes &= AES_BLOCK_SIZE - 1;
207 err = blkcipher_walk_done(desc, &walk, nbytes);
214 static int ecb_decrypt(struct blkcipher_desc *desc,
215 struct scatterlist *dst, struct scatterlist *src,
218 struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
219 struct blkcipher_walk walk;
222 blkcipher_walk_init(&walk, dst, src, nbytes);
223 err = blkcipher_walk_virt(desc, &walk);
226 while ((nbytes = walk.nbytes)) {
227 aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
228 nbytes & AES_BLOCK_MASK);
229 nbytes &= AES_BLOCK_SIZE - 1;
230 err = blkcipher_walk_done(desc, &walk, nbytes);
237 static struct crypto_alg blk_ecb_alg = {
238 .cra_name = "__ecb-aes-aesni",
239 .cra_driver_name = "__driver-ecb-aes-aesni",
241 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
242 .cra_blocksize = AES_BLOCK_SIZE,
243 .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
245 .cra_type = &crypto_blkcipher_type,
246 .cra_module = THIS_MODULE,
247 .cra_list = LIST_HEAD_INIT(blk_ecb_alg.cra_list),
250 .min_keysize = AES_MIN_KEY_SIZE,
251 .max_keysize = AES_MAX_KEY_SIZE,
252 .setkey = aes_set_key,
253 .encrypt = ecb_encrypt,
254 .decrypt = ecb_decrypt,
259 static int cbc_encrypt(struct blkcipher_desc *desc,
260 struct scatterlist *dst, struct scatterlist *src,
263 struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
264 struct blkcipher_walk walk;
267 blkcipher_walk_init(&walk, dst, src, nbytes);
268 err = blkcipher_walk_virt(desc, &walk);
271 while ((nbytes = walk.nbytes)) {
272 aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
273 nbytes & AES_BLOCK_MASK, walk.iv);
274 nbytes &= AES_BLOCK_SIZE - 1;
275 err = blkcipher_walk_done(desc, &walk, nbytes);
282 static int cbc_decrypt(struct blkcipher_desc *desc,
283 struct scatterlist *dst, struct scatterlist *src,
286 struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
287 struct blkcipher_walk walk;
290 blkcipher_walk_init(&walk, dst, src, nbytes);
291 err = blkcipher_walk_virt(desc, &walk);
294 while ((nbytes = walk.nbytes)) {
295 aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
296 nbytes & AES_BLOCK_MASK, walk.iv);
297 nbytes &= AES_BLOCK_SIZE - 1;
298 err = blkcipher_walk_done(desc, &walk, nbytes);
305 static struct crypto_alg blk_cbc_alg = {
306 .cra_name = "__cbc-aes-aesni",
307 .cra_driver_name = "__driver-cbc-aes-aesni",
309 .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
310 .cra_blocksize = AES_BLOCK_SIZE,
311 .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
313 .cra_type = &crypto_blkcipher_type,
314 .cra_module = THIS_MODULE,
315 .cra_list = LIST_HEAD_INIT(blk_cbc_alg.cra_list),
318 .min_keysize = AES_MIN_KEY_SIZE,
319 .max_keysize = AES_MAX_KEY_SIZE,
320 .setkey = aes_set_key,
321 .encrypt = cbc_encrypt,
322 .decrypt = cbc_decrypt,
327 static int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
328 unsigned int key_len)
330 struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
331 struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
334 crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
335 crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
336 & CRYPTO_TFM_REQ_MASK);
337 err = crypto_ablkcipher_setkey(child, key, key_len);
338 crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
339 & CRYPTO_TFM_RES_MASK);
343 static int ablk_encrypt(struct ablkcipher_request *req)
345 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
346 struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
348 if (kernel_fpu_using()) {
349 struct ablkcipher_request *cryptd_req =
350 ablkcipher_request_ctx(req);
351 memcpy(cryptd_req, req, sizeof(*req));
352 ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
353 return crypto_ablkcipher_encrypt(cryptd_req);
355 struct blkcipher_desc desc;
356 desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
357 desc.info = req->info;
359 return crypto_blkcipher_crt(desc.tfm)->encrypt(
360 &desc, req->dst, req->src, req->nbytes);
364 static int ablk_decrypt(struct ablkcipher_request *req)
366 struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
367 struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
369 if (kernel_fpu_using()) {
370 struct ablkcipher_request *cryptd_req =
371 ablkcipher_request_ctx(req);
372 memcpy(cryptd_req, req, sizeof(*req));
373 ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
374 return crypto_ablkcipher_decrypt(cryptd_req);
376 struct blkcipher_desc desc;
377 desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
378 desc.info = req->info;
380 return crypto_blkcipher_crt(desc.tfm)->decrypt(
381 &desc, req->dst, req->src, req->nbytes);
385 static void ablk_exit(struct crypto_tfm *tfm)
387 struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
389 cryptd_free_ablkcipher(ctx->cryptd_tfm);
392 static void ablk_init_common(struct crypto_tfm *tfm,
393 struct cryptd_ablkcipher *cryptd_tfm)
395 struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
397 ctx->cryptd_tfm = cryptd_tfm;
398 tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
399 crypto_ablkcipher_reqsize(&cryptd_tfm->base);
402 static int ablk_ecb_init(struct crypto_tfm *tfm)
404 struct cryptd_ablkcipher *cryptd_tfm;
406 cryptd_tfm = cryptd_alloc_ablkcipher("__driver-ecb-aes-aesni", 0, 0);
407 if (IS_ERR(cryptd_tfm))
408 return PTR_ERR(cryptd_tfm);
409 ablk_init_common(tfm, cryptd_tfm);
413 static struct crypto_alg ablk_ecb_alg = {
414 .cra_name = "ecb(aes)",
415 .cra_driver_name = "ecb-aes-aesni",
417 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
418 .cra_blocksize = AES_BLOCK_SIZE,
419 .cra_ctxsize = sizeof(struct async_aes_ctx),
421 .cra_type = &crypto_ablkcipher_type,
422 .cra_module = THIS_MODULE,
423 .cra_list = LIST_HEAD_INIT(ablk_ecb_alg.cra_list),
424 .cra_init = ablk_ecb_init,
425 .cra_exit = ablk_exit,
428 .min_keysize = AES_MIN_KEY_SIZE,
429 .max_keysize = AES_MAX_KEY_SIZE,
430 .setkey = ablk_set_key,
431 .encrypt = ablk_encrypt,
432 .decrypt = ablk_decrypt,
437 static int ablk_cbc_init(struct crypto_tfm *tfm)
439 struct cryptd_ablkcipher *cryptd_tfm;
441 cryptd_tfm = cryptd_alloc_ablkcipher("__driver-cbc-aes-aesni", 0, 0);
442 if (IS_ERR(cryptd_tfm))
443 return PTR_ERR(cryptd_tfm);
444 ablk_init_common(tfm, cryptd_tfm);
448 static struct crypto_alg ablk_cbc_alg = {
449 .cra_name = "cbc(aes)",
450 .cra_driver_name = "cbc-aes-aesni",
452 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
453 .cra_blocksize = AES_BLOCK_SIZE,
454 .cra_ctxsize = sizeof(struct async_aes_ctx),
456 .cra_type = &crypto_ablkcipher_type,
457 .cra_module = THIS_MODULE,
458 .cra_list = LIST_HEAD_INIT(ablk_cbc_alg.cra_list),
459 .cra_init = ablk_cbc_init,
460 .cra_exit = ablk_exit,
463 .min_keysize = AES_MIN_KEY_SIZE,
464 .max_keysize = AES_MAX_KEY_SIZE,
465 .ivsize = AES_BLOCK_SIZE,
466 .setkey = ablk_set_key,
467 .encrypt = ablk_encrypt,
468 .decrypt = ablk_decrypt,
474 static int ablk_ctr_init(struct crypto_tfm *tfm)
476 struct cryptd_ablkcipher *cryptd_tfm;
478 cryptd_tfm = cryptd_alloc_ablkcipher("fpu(ctr(__driver-aes-aesni))",
480 if (IS_ERR(cryptd_tfm))
481 return PTR_ERR(cryptd_tfm);
482 ablk_init_common(tfm, cryptd_tfm);
486 static struct crypto_alg ablk_ctr_alg = {
487 .cra_name = "ctr(aes)",
488 .cra_driver_name = "ctr-aes-aesni",
490 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
492 .cra_ctxsize = sizeof(struct async_aes_ctx),
494 .cra_type = &crypto_ablkcipher_type,
495 .cra_module = THIS_MODULE,
496 .cra_list = LIST_HEAD_INIT(ablk_ctr_alg.cra_list),
497 .cra_init = ablk_ctr_init,
498 .cra_exit = ablk_exit,
501 .min_keysize = AES_MIN_KEY_SIZE,
502 .max_keysize = AES_MAX_KEY_SIZE,
503 .ivsize = AES_BLOCK_SIZE,
504 .setkey = ablk_set_key,
505 .encrypt = ablk_encrypt,
506 .decrypt = ablk_decrypt,
514 static int ablk_lrw_init(struct crypto_tfm *tfm)
516 struct cryptd_ablkcipher *cryptd_tfm;
518 cryptd_tfm = cryptd_alloc_ablkcipher("fpu(lrw(__driver-aes-aesni))",
520 if (IS_ERR(cryptd_tfm))
521 return PTR_ERR(cryptd_tfm);
522 ablk_init_common(tfm, cryptd_tfm);
526 static struct crypto_alg ablk_lrw_alg = {
527 .cra_name = "lrw(aes)",
528 .cra_driver_name = "lrw-aes-aesni",
530 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
531 .cra_blocksize = AES_BLOCK_SIZE,
532 .cra_ctxsize = sizeof(struct async_aes_ctx),
534 .cra_type = &crypto_ablkcipher_type,
535 .cra_module = THIS_MODULE,
536 .cra_list = LIST_HEAD_INIT(ablk_lrw_alg.cra_list),
537 .cra_init = ablk_lrw_init,
538 .cra_exit = ablk_exit,
541 .min_keysize = AES_MIN_KEY_SIZE + AES_BLOCK_SIZE,
542 .max_keysize = AES_MAX_KEY_SIZE + AES_BLOCK_SIZE,
543 .ivsize = AES_BLOCK_SIZE,
544 .setkey = ablk_set_key,
545 .encrypt = ablk_encrypt,
546 .decrypt = ablk_decrypt,
553 static int ablk_pcbc_init(struct crypto_tfm *tfm)
555 struct cryptd_ablkcipher *cryptd_tfm;
557 cryptd_tfm = cryptd_alloc_ablkcipher("fpu(pcbc(__driver-aes-aesni))",
559 if (IS_ERR(cryptd_tfm))
560 return PTR_ERR(cryptd_tfm);
561 ablk_init_common(tfm, cryptd_tfm);
565 static struct crypto_alg ablk_pcbc_alg = {
566 .cra_name = "pcbc(aes)",
567 .cra_driver_name = "pcbc-aes-aesni",
569 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
570 .cra_blocksize = AES_BLOCK_SIZE,
571 .cra_ctxsize = sizeof(struct async_aes_ctx),
573 .cra_type = &crypto_ablkcipher_type,
574 .cra_module = THIS_MODULE,
575 .cra_list = LIST_HEAD_INIT(ablk_pcbc_alg.cra_list),
576 .cra_init = ablk_pcbc_init,
577 .cra_exit = ablk_exit,
580 .min_keysize = AES_MIN_KEY_SIZE,
581 .max_keysize = AES_MAX_KEY_SIZE,
582 .ivsize = AES_BLOCK_SIZE,
583 .setkey = ablk_set_key,
584 .encrypt = ablk_encrypt,
585 .decrypt = ablk_decrypt,
592 static int ablk_xts_init(struct crypto_tfm *tfm)
594 struct cryptd_ablkcipher *cryptd_tfm;
596 cryptd_tfm = cryptd_alloc_ablkcipher("fpu(xts(__driver-aes-aesni))",
598 if (IS_ERR(cryptd_tfm))
599 return PTR_ERR(cryptd_tfm);
600 ablk_init_common(tfm, cryptd_tfm);
604 static struct crypto_alg ablk_xts_alg = {
605 .cra_name = "xts(aes)",
606 .cra_driver_name = "xts-aes-aesni",
608 .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
609 .cra_blocksize = AES_BLOCK_SIZE,
610 .cra_ctxsize = sizeof(struct async_aes_ctx),
612 .cra_type = &crypto_ablkcipher_type,
613 .cra_module = THIS_MODULE,
614 .cra_list = LIST_HEAD_INIT(ablk_xts_alg.cra_list),
615 .cra_init = ablk_xts_init,
616 .cra_exit = ablk_exit,
619 .min_keysize = 2 * AES_MIN_KEY_SIZE,
620 .max_keysize = 2 * AES_MAX_KEY_SIZE,
621 .ivsize = AES_BLOCK_SIZE,
622 .setkey = ablk_set_key,
623 .encrypt = ablk_encrypt,
624 .decrypt = ablk_decrypt,
630 static int __init aesni_init(void)
635 printk(KERN_ERR "Intel AES-NI instructions are not detected.\n");
638 if ((err = crypto_register_alg(&aesni_alg)))
640 if ((err = crypto_register_alg(&__aesni_alg)))
642 if ((err = crypto_register_alg(&blk_ecb_alg)))
644 if ((err = crypto_register_alg(&blk_cbc_alg)))
646 if ((err = crypto_register_alg(&ablk_ecb_alg)))
648 if ((err = crypto_register_alg(&ablk_cbc_alg)))
651 if ((err = crypto_register_alg(&ablk_ctr_alg)))
655 if ((err = crypto_register_alg(&ablk_lrw_alg)))
659 if ((err = crypto_register_alg(&ablk_pcbc_alg)))
663 if ((err = crypto_register_alg(&ablk_xts_alg)))
673 crypto_unregister_alg(&ablk_pcbc_alg);
677 crypto_unregister_alg(&ablk_lrw_alg);
681 crypto_unregister_alg(&ablk_ctr_alg);
684 crypto_unregister_alg(&ablk_cbc_alg);
686 crypto_unregister_alg(&ablk_ecb_alg);
688 crypto_unregister_alg(&blk_cbc_alg);
690 crypto_unregister_alg(&blk_ecb_alg);
692 crypto_unregister_alg(&__aesni_alg);
694 crypto_unregister_alg(&aesni_alg);
699 static void __exit aesni_exit(void)
702 crypto_unregister_alg(&ablk_xts_alg);
705 crypto_unregister_alg(&ablk_pcbc_alg);
708 crypto_unregister_alg(&ablk_lrw_alg);
711 crypto_unregister_alg(&ablk_ctr_alg);
713 crypto_unregister_alg(&ablk_cbc_alg);
714 crypto_unregister_alg(&ablk_ecb_alg);
715 crypto_unregister_alg(&blk_cbc_alg);
716 crypto_unregister_alg(&blk_ecb_alg);
717 crypto_unregister_alg(&__aesni_alg);
718 crypto_unregister_alg(&aesni_alg);
721 module_init(aesni_init);
722 module_exit(aesni_exit);
724 MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized");
725 MODULE_LICENSE("GPL");