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CRC updates for 7.1

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- Several improvements related to crc_kunit, to align with the
   standard KUnit conventions and make it easier for developers and CI
   systems to run this test suite
 
 - Add an arm64-optimized implementation of CRC64-NVME
 
 - Remove unused code for big endian arm64
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Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull CRC updates from Eric Biggers:

 - Several improvements related to crc_kunit, to align with the standard
   KUnit conventions and make it easier for developers and CI systems to
   run this test suite

 - Add an arm64-optimized implementation of CRC64-NVME

 - Remove unused code for big endian arm64

* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  lib/crc: arm64: Simplify intrinsics implementation
  lib/crc: arm64: Use existing macros for kernel-mode FPU cflags
  lib/crc: arm64: Drop unnecessary chunking logic from crc64
  lib/crc: arm64: Assume a little-endian kernel
  lib/crc: arm64: add NEON accelerated CRC64-NVMe implementation
  lib/crc: arm64: Drop check for CONFIG_KERNEL_MODE_NEON
  crypto: crc32c - Remove another outdated comment
  crypto: crc32c - Remove more outdated usage information
  kunit: configs: Enable all CRC tests in all_tests.config
  lib/crc: tests: Add a .kunitconfig file
  lib/crc: tests: Add CRC_ENABLE_ALL_FOR_KUNIT
  lib/crc: tests: Make crc_kunit test only the enabled CRC variants
This commit is contained in:
Linus Torvalds 2026-04-13 17:36:04 -07:00
commit d142ab35ee
10 changed files with 172 additions and 65 deletions
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19
crypto/crc32c.c
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@ -1,8 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Cryptographic API.
*
* CRC32C chksum
* crypto_shash support for CRC-32C
*
*@Article{castagnoli-crc,
* author = { Guy Castagnoli and Stefan Braeuer and Martin Herrman},
@ -15,16 +13,6 @@
* pages = {},
* month = {June},
*}
* Used by the iSCSI driver, possibly others, and derived from
* the iscsi-crc.c module of the linux-iscsi driver at
* http://linux-iscsi.sourceforge.net.
*
* Following the example of lib/crc32, this function is intended to be
* flexible and useful for all users. Modules that currently have their
* own crc32c, but hopefully may be able to use this one are:
* net/sctp (please add all your doco to here if you change to
* use this one!)
* <endoflist>
*
* Copyright (c) 2004 Cisco Systems, Inc.
* Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
@ -49,11 +37,6 @@ struct chksum_desc_ctx {
u32 crc;
};
/*
* Steps through buffer one byte at a time, calculates reflected
* crc using table.
*/
static int chksum_init(struct shash_desc *desc)
{
struct chksum_ctx *mctx = crypto_shash_ctx(desc->tfm);