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b5943815e6
Move the riscv-optimized CRC code from arch/riscv/lib/crc* into its new location in lib/crc/riscv/, and wire it up in the new way. This new way of organizing the CRC code eliminates the need to artificially split the code for each CRC variant into separate arch and generic modules, enabling better inlining and dead code elimination. For more details, see "lib/crc: Prepare for arch-optimized code in subdirs of lib/crc/". Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: "Jason A. Donenfeld" <Jason@zx2c4.com> Link: https://lore.kernel.org/r/20250607200454.73587-9-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
18 lines
439 B
C
18 lines
439 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* RISC-V optimized CRC-T10DIF function
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*
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* Copyright 2025 Google LLC
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*/
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#include <asm/hwcap.h>
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#include <asm/alternative-macros.h>
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#include "crc-clmul.h"
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static inline u16 crc_t10dif_arch(u16 crc, const u8 *p, size_t len)
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{
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if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC))
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return crc16_msb_clmul(crc, p, len, &crc16_msb_0x8bb7_consts);
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return crc_t10dif_generic(crc, p, len);
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}
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