diff options
Diffstat (limited to 'drivers/crypto/vmx/aes_ctr.c')
-rw-r--r-- | drivers/crypto/vmx/aes_ctr.c | 24 |
1 files changed, 7 insertions, 17 deletions
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); |