diff options
Diffstat (limited to 'drivers/crypto/vmx')
| -rw-r--r-- | drivers/crypto/vmx/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes.c | 28 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_cbc.c | 28 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_ctr.c | 24 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aes_xts.c | 28 | ||||
| -rw-r--r-- | drivers/crypto/vmx/aesp8-ppc.pl | 6 | ||||
| -rw-r--r-- | drivers/crypto/vmx/ghash.c | 217 | ||||
| -rw-r--r-- | drivers/crypto/vmx/vmx.c | 18 |
8 files changed, 129 insertions, 221 deletions
diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig index c3d524ea6998..c85fab7ef0bd 100644 --- a/drivers/crypto/vmx/Kconfig +++ b/drivers/crypto/vmx/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config CRYPTO_DEV_VMX_ENCRYPT tristate "Encryption acceleration support on P8 CPU" depends on CRYPTO_DEV_VMX diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c index d7316f7a3a69..2bc5d4e1adf4 100644 --- a/drivers/crypto/vmx/aes.c +++ b/drivers/crypto/vmx/aes.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * AES routines supporting VMX instructions on the Power 8 * * Copyright (C) 2015 International Business Machines Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> */ @@ -23,9 +11,10 @@ #include <linux/err.h> #include <linux/crypto.h> #include <linux/delay.h> -#include <linux/hardirq.h> +#include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> +#include <crypto/internal/simd.h> #include "aesp8-ppc.h" @@ -78,20 +67,21 @@ static int p8_aes_setkey(struct crypto_tfm *tfm, const u8 *key, pagefault_disable(); enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); - ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); + ret |= aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); disable_kernel_vsx(); pagefault_enable(); preempt_enable(); - ret += crypto_cipher_setkey(ctx->fallback, key, keylen); - return ret; + ret |= crypto_cipher_setkey(ctx->fallback, key, keylen); + + return ret ? -EINVAL : 0; } static void p8_aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm); - if (in_interrupt()) { + if (!crypto_simd_usable()) { crypto_cipher_encrypt_one(ctx->fallback, dst, src); } else { preempt_disable(); @@ -108,7 +98,7 @@ static void p8_aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm); - if (in_interrupt()) { + if (!crypto_simd_usable()) { crypto_cipher_decrypt_one(ctx->fallback, dst, src); } else { preempt_disable(); diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c index c5c5ff82b52e..c7e515a1bc97 100644 --- a/drivers/crypto/vmx/aes_cbc.c +++ b/drivers/crypto/vmx/aes_cbc.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * AES CBC routines supporting VMX instructions on the Power 8 * * Copyright (C) 2015 International Business Machines Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> */ @@ -23,9 +11,10 @@ #include <linux/err.h> #include <linux/crypto.h> #include <linux/delay.h> -#include <linux/hardirq.h> +#include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> +#include <crypto/internal/simd.h> #include <crypto/scatterwalk.h> #include <crypto/skcipher.h> @@ -81,13 +70,14 @@ static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key, pagefault_disable(); enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key); - ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); + ret |= aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key); disable_kernel_vsx(); pagefault_enable(); preempt_enable(); - ret += crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); - return ret; + ret |= crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); + + return ret ? -EINVAL : 0; } static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, @@ -99,7 +89,7 @@ static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc, struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm)); - if (in_interrupt()) { + if (!crypto_simd_usable()) { SYNC_SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback); skcipher_request_set_sync_tfm(req, ctx->fallback); skcipher_request_set_callback(req, desc->flags, NULL, NULL); @@ -138,7 +128,7 @@ static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc, struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm)); - if (in_interrupt()) { + if (!crypto_simd_usable()) { SYNC_SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback); skcipher_request_set_sync_tfm(req, ctx->fallback); skcipher_request_set_callback(req, desc->flags, NULL, NULL); diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c index 8a2fe092cb8e..dd017ef42fa9 100644 --- a/drivers/crypto/vmx/aes_ctr.c +++ b/drivers/crypto/vmx/aes_ctr.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * AES CTR routines supporting VMX instructions on the Power 8 * * Copyright (C) 2015 International Business Machines Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> */ @@ -23,9 +11,10 @@ #include <linux/err.h> #include <linux/crypto.h> #include <linux/delay.h> -#include <linux/hardirq.h> +#include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> +#include <crypto/internal/simd.h> #include <crypto/scatterwalk.h> #include <crypto/skcipher.h> @@ -83,8 +72,9 @@ static int p8_aes_ctr_setkey(struct crypto_tfm *tfm, const u8 *key, pagefault_enable(); preempt_enable(); - ret += crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); - return ret; + ret |= crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); + + return ret ? -EINVAL : 0; } static void p8_aes_ctr_final(struct p8_aes_ctr_ctx *ctx, @@ -118,7 +108,7 @@ static int p8_aes_ctr_crypt(struct blkcipher_desc *desc, struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm)); - if (in_interrupt()) { + if (!crypto_simd_usable()) { SYNC_SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback); skcipher_request_set_sync_tfm(req, ctx->fallback); skcipher_request_set_callback(req, desc->flags, NULL, NULL); diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c index ecd64e5cc5bb..536167e737a0 100644 --- a/drivers/crypto/vmx/aes_xts.c +++ b/drivers/crypto/vmx/aes_xts.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * AES XTS routines supporting VMX In-core instructions on Power 8 * * Copyright (C) 2015 International Business Machines Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundations; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY of FITNESS FOR A PARTICUPAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Author: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> */ @@ -23,9 +11,10 @@ #include <linux/err.h> #include <linux/crypto.h> #include <linux/delay.h> -#include <linux/hardirq.h> +#include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> +#include <crypto/internal/simd.h> #include <crypto/scatterwalk.h> #include <crypto/xts.h> #include <crypto/skcipher.h> @@ -86,14 +75,15 @@ static int p8_aes_xts_setkey(struct crypto_tfm *tfm, const u8 *key, pagefault_disable(); enable_kernel_vsx(); ret = aes_p8_set_encrypt_key(key + keylen/2, (keylen/2) * 8, &ctx->tweak_key); - ret += aes_p8_set_encrypt_key(key, (keylen/2) * 8, &ctx->enc_key); - ret += aes_p8_set_decrypt_key(key, (keylen/2) * 8, &ctx->dec_key); + ret |= aes_p8_set_encrypt_key(key, (keylen/2) * 8, &ctx->enc_key); + ret |= aes_p8_set_decrypt_key(key, (keylen/2) * 8, &ctx->dec_key); disable_kernel_vsx(); pagefault_enable(); preempt_enable(); - ret += crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); - return ret; + ret |= crypto_sync_skcipher_setkey(ctx->fallback, key, keylen); + + return ret ? -EINVAL : 0; } static int p8_aes_xts_crypt(struct blkcipher_desc *desc, @@ -108,7 +98,7 @@ static int p8_aes_xts_crypt(struct blkcipher_desc *desc, struct p8_aes_xts_ctx *ctx = crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm)); - if (in_interrupt()) { + if (!crypto_simd_usable()) { SYNC_SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback); skcipher_request_set_sync_tfm(req, ctx->fallback); skcipher_request_set_callback(req, desc->flags, NULL, NULL); diff --git a/drivers/crypto/vmx/aesp8-ppc.pl b/drivers/crypto/vmx/aesp8-ppc.pl index d6a9f63d65ba..9c6b5c1d6a1a 100644 --- a/drivers/crypto/vmx/aesp8-ppc.pl +++ b/drivers/crypto/vmx/aesp8-ppc.pl @@ -1357,7 +1357,7 @@ Loop_ctr32_enc: addi $idx,$idx,16 bdnz Loop_ctr32_enc - vadduwm $ivec,$ivec,$one + vadduqm $ivec,$ivec,$one vmr $dat,$inptail lvx $inptail,0,$inp addi $inp,$inp,16 @@ -1854,7 +1854,7 @@ Lctr32_enc8x_three: stvx_u $out1,$x10,$out stvx_u $out2,$x20,$out addi $out,$out,0x30 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_two: @@ -1866,7 +1866,7 @@ Lctr32_enc8x_two: stvx_u $out0,$x00,$out stvx_u $out1,$x10,$out addi $out,$out,0x20 - b Lcbc_dec8x_done + b Lctr32_enc8x_done .align 5 Lctr32_enc8x_one: diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c index dd8b8716467a..14807ac2e3b9 100644 --- a/drivers/crypto/vmx/ghash.c +++ b/drivers/crypto/vmx/ghash.c @@ -1,109 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 /** * GHASH routines supporting VMX instructions on the Power 8 * - * Copyright (C) 2015 International Business Machines Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Copyright (C) 2015, 2019 International Business Machines Inc. * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> + * + * Extended by Daniel Axtens <dja@axtens.net> to replace the fallback + * mechanism. The new approach is based on arm64 code, which is: + * Copyright (C) 2014 - 2018 Linaro Ltd. <ard.biesheuvel@linaro.org> */ #include <linux/types.h> #include <linux/err.h> #include <linux/crypto.h> #include <linux/delay.h> -#include <linux/hardirq.h> +#include <asm/simd.h> #include <asm/switch_to.h> #include <crypto/aes.h> #include <crypto/ghash.h> #include <crypto/scatterwalk.h> #include <crypto/internal/hash.h> +#include <crypto/internal/simd.h> #include <crypto/b128ops.h> -#define IN_INTERRUPT in_interrupt() - void gcm_init_p8(u128 htable[16], const u64 Xi[2]); void gcm_gmult_p8(u64 Xi[2], const u128 htable[16]); void gcm_ghash_p8(u64 Xi[2], const u128 htable[16], const u8 *in, size_t len); struct p8_ghash_ctx { + /* key used by vector asm */ u128 htable[16]; - struct crypto_shash *fallback; + /* key used by software fallback */ + be128 key; }; struct p8_ghash_desc_ctx { u64 shash[2]; u8 buffer[GHASH_DIGEST_SIZE]; int bytes; - struct shash_desc fallback_desc; }; -static int p8_ghash_init_tfm(struct crypto_tfm *tfm) -{ - const char *alg = "ghash-generic"; - struct crypto_shash *fallback; - struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm); - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK); - if (IS_ERR(fallback)) { - printk(KERN_ERR - "Failed to allocate transformation for '%s': %ld\n", - alg, PTR_ERR(fallback)); - return PTR_ERR(fallback); - } - - crypto_shash_set_flags(fallback, - crypto_shash_get_flags((struct crypto_shash - *) tfm)); - - /* Check if the descsize defined in the algorithm is still enough. */ - if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx) - + crypto_shash_descsize(fallback)) { - printk(KERN_ERR - "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n", - alg, - shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx), - crypto_shash_descsize(fallback)); - return -EINVAL; - } - ctx->fallback = fallback; - - return 0; -} - -static void p8_ghash_exit_tfm(struct crypto_tfm *tfm) -{ - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm); - - if (ctx->fallback) { - crypto_free_shash(ctx->fallback); - ctx->fallback = NULL; - } -} - static int p8_ghash_init(struct shash_desc *desc) { - struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); dctx->bytes = 0; memset(dctx->shash, 0, GHASH_DIGEST_SIZE); - dctx->fallback_desc.tfm = ctx->fallback; - dctx->fallback_desc.flags = desc->flags; - return crypto_shash_init(&dctx->fallback_desc); + return 0; } static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, @@ -121,7 +66,51 @@ static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key, disable_kernel_vsx(); pagefault_enable(); preempt_enable(); - return crypto_shash_setkey(ctx->fallback, key, keylen); + + memcpy(&ctx->key, key, GHASH_BLOCK_SIZE); + + return 0; +} + +static inline void __ghash_block(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx) +{ + if (crypto_simd_usable()) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); + gcm_ghash_p8(dctx->shash, ctx->htable, + dctx->buffer, GHASH_DIGEST_SIZE); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + } else { + crypto_xor((u8 *)dctx->shash, dctx->buffer, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + } +} + +static inline void __ghash_blocks(struct p8_ghash_ctx *ctx, + struct p8_ghash_desc_ctx *dctx, + const u8 *src, unsigned int srclen) +{ + if (crypto_simd_usable()) { + preempt_disable(); + pagefault_disable(); + enable_kernel_vsx(); + gcm_ghash_p8(dctx->shash, ctx->htable, + src, srclen); + disable_kernel_vsx(); + pagefault_enable(); + preempt_enable(); + } else { + while (srclen >= GHASH_BLOCK_SIZE) { + crypto_xor((u8 *)dctx->shash, src, GHASH_BLOCK_SIZE); + gf128mul_lle((be128 *)dctx->shash, &ctx->key); + srclen -= GHASH_BLOCK_SIZE; + src += GHASH_BLOCK_SIZE; + } + } } static int p8_ghash_update(struct shash_desc *desc, @@ -131,49 +120,33 @@ static int p8_ghash_update(struct shash_desc *desc, struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (IN_INTERRUPT) { - return crypto_shash_update(&dctx->fallback_desc, src, - srclen); - } else { - if (dctx->bytes) { - if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { - memcpy(dctx->buffer + dctx->bytes, src, - srclen); - dctx->bytes += srclen; - return 0; - } + if (dctx->bytes) { + if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) { memcpy(dctx->buffer + dctx->bytes, src, - GHASH_DIGEST_SIZE - dctx->bytes); - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - src += GHASH_DIGEST_SIZE - dctx->bytes; - srclen -= GHASH_DIGEST_SIZE - dctx->bytes; - dctx->bytes = 0; - } - len = srclen & ~(GHASH_DIGEST_SIZE - 1); - if (len) { - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, src, len); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - src += len; - srclen -= len; - } - if (srclen) { - memcpy(dctx->buffer, src, srclen); - dctx->bytes = srclen; + srclen); + dctx->bytes += srclen; + return 0; } - return 0; + memcpy(dctx->buffer + dctx->bytes, src, + GHASH_DIGEST_SIZE - dctx->bytes); + + __ghash_block(ctx, dctx); + + src += GHASH_DIGEST_SIZE - dctx->bytes; + srclen -= GHASH_DIGEST_SIZE - dctx->bytes; + dctx->bytes = 0; + } + len = srclen & ~(GHASH_DIGEST_SIZE - 1); + if (len) { + __ghash_blocks(ctx, dctx, src, len); + src += len; + srclen -= len; } + if (srclen) { + memcpy(dctx->buffer, src, srclen); + dctx->bytes = srclen; + } + return 0; } static int p8_ghash_final(struct shash_desc *desc, u8 *out) @@ -182,25 +155,14 @@ static int p8_ghash_final(struct shash_desc *desc, u8 *out) struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm)); struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc); - if (IN_INTERRUPT) { - return crypto_shash_final(&dctx->fallback_desc, out); - } else { - if (dctx->bytes) { - for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) - dctx->buffer[i] = 0; - preempt_disable(); - pagefault_disable(); - enable_kernel_vsx(); - gcm_ghash_p8(dctx->shash, ctx->htable, - dctx->buffer, GHASH_DIGEST_SIZE); - disable_kernel_vsx(); - pagefault_enable(); - preempt_enable(); - dctx->bytes = 0; - } - memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); - return 0; + if (dctx->bytes) { + for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++) + dctx->buffer[i] = 0; + __ghash_block(ctx, dctx); + dctx->bytes = 0; } + memcpy(out, dctx->shash, GHASH_DIGEST_SIZE); + return 0; } struct shash_alg p8_ghash_alg = { @@ -215,11 +177,8 @@ struct shash_alg p8_ghash_alg = { .cra_name = "ghash", .cra_driver_name = "p8_ghash", .cra_priority = 1000, - .cra_flags = CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = GHASH_BLOCK_SIZE, .cra_ctxsize = sizeof(struct p8_ghash_ctx), .cra_module = THIS_MODULE, - .cra_init = p8_ghash_init_tfm, - .cra_exit = p8_ghash_exit_tfm, }, }; diff --git a/drivers/crypto/vmx/vmx.c b/drivers/crypto/vmx/vmx.c index 31a98dc6f849..6c4c77f4e159 100644 --- a/drivers/crypto/vmx/vmx.c +++ b/drivers/crypto/vmx/vmx.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /** * Routines supporting VMX instructions on the Power 8 * * Copyright (C) 2015 International Business Machines Inc. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 only. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Author: Marcelo Henrique Cerri <mhcerri@br.ibm.com> */ @@ -41,7 +29,7 @@ static struct crypto_alg *algs[] = { NULL, }; -int __init p8_init(void) +static int __init p8_init(void) { int ret = 0; struct crypto_alg **alg_it; @@ -67,7 +55,7 @@ int __init p8_init(void) return ret; } -void __exit p8_exit(void) +static void __exit p8_exit(void) { struct crypto_alg **alg_it; |