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Many open source projects have moved to using SPDX identifiers to specify license information, reducing the amount of boilerplate code in every source file. This patch replaces the bulk of SPDK .c, .cpp and Makefiles with the BSD-3-Clause identifier. Almost all of these files share the exact same license text, and this patch only modifies the files that contain the most common license text. There can be slight variations because the third clause contains company names - most say "Intel Corporation", but there are instances for Nvidia, Samsung, Eideticom and even "the copyright holder". Used a bash script to automate replacement of the license text with SPDX identifier which is checked into scripts/spdx.sh. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Iaa88ab5e92ea471691dc298cfe41ebfb5d169780 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/12904 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Dong Yi <dongx.yi@intel.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Reviewed-by: Paul Luse <paul.e.luse@intel.com> Reviewed-by: <qun.wan@intel.com>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (C) 2008-2012 Daisuke Aoyama <aoyama@peach.ne.jp>.
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*/
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#ifndef SPDK_UTIL_INTERNAL_H
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#define SPDK_UTIL_INTERNAL_H
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#include "spdk/stdinc.h"
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/**
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* IEEE CRC-32 polynomial (bit reflected)
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*/
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#define SPDK_CRC32_POLYNOMIAL_REFLECT 0xedb88320UL
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/**
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* CRC-32C (Castagnoli) polynomial (bit reflected)
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*/
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#define SPDK_CRC32C_POLYNOMIAL_REFLECT 0x82f63b78UL
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struct spdk_crc32_table {
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uint32_t table[256];
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};
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/**
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* Initialize a CRC32 lookup table for a given polynomial.
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*
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* \param table Table to fill with precalculated CRC-32 data.
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* \param polynomial_reflect Bit-reflected CRC-32 polynomial.
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*/
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void crc32_table_init(struct spdk_crc32_table *table,
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uint32_t polynomial_reflect);
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/**
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* Calculate a partial CRC-32 checksum.
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*
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* \param table CRC-32 table initialized with crc32_table_init().
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* \param buf Data buffer to checksum.
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* \param len Length of buf in bytes.
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* \param crc Previous CRC-32 value.
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* \return Updated CRC-32 value.
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*/
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uint32_t crc32_update(const struct spdk_crc32_table *table,
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const void *buf, size_t len,
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uint32_t crc);
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#endif /* SPDK_UTIL_INTERNAL_H */
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