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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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1 | 2 | /* |
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2 | 3 | * Accelerated CRC-T10DIF using ARM NEON and Crypto Extensions instructions |
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3 | 4 | * |
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4 | 5 | * Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org> |
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5 | | - * |
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6 | | - * This program is free software; you can redistribute it and/or modify |
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7 | | - * it under the terms of the GNU General Public License version 2 as |
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8 | | - * published by the Free Software Foundation. |
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9 | 6 | */ |
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10 | 7 | |
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11 | 8 | #include <linux/crc-t10dif.h> |
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.. | .. |
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15 | 12 | #include <linux/string.h> |
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16 | 13 | |
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17 | 14 | #include <crypto/internal/hash.h> |
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| 15 | +#include <crypto/internal/simd.h> |
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18 | 16 | |
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19 | 17 | #include <asm/neon.h> |
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20 | 18 | #include <asm/simd.h> |
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21 | 19 | |
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22 | 20 | #define CRC_T10DIF_PMULL_CHUNK_SIZE 16U |
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23 | 21 | |
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24 | | -asmlinkage u16 crc_t10dif_pmull(u16 init_crc, const u8 buf[], u32 len); |
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| 22 | +asmlinkage u16 crc_t10dif_pmull(u16 init_crc, const u8 *buf, size_t len); |
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25 | 23 | |
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26 | 24 | static int crct10dif_init(struct shash_desc *desc) |
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27 | 25 | { |
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.. | .. |
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36 | 34 | { |
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37 | 35 | u16 *crc = shash_desc_ctx(desc); |
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38 | 36 | |
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39 | | - if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) { |
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| 37 | + if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) { |
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40 | 38 | kernel_neon_begin(); |
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41 | 39 | *crc = crc_t10dif_pmull(*crc, data, length); |
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42 | 40 | kernel_neon_end(); |
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