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5012bd2dc6
Drop 'inline' from all the *_mod_init_arch() functions so that the compiler will warn about any bugs where they are unused due to not being wired up properly. (There are no such bugs currently, so this just establishes a more robust convention for the future. Of course, these functions also tend to get inlined anyway, regardless of the keyword.) Link: https://lore.kernel.org/r/20250816020457.432040-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* MD5 accelerated using the sparc64 crypto opcodes
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*
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* Copyright (c) Alan Smithee.
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* Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
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* Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
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* Copyright (c) Mathias Krause <minipli@googlemail.com>
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* Copyright (c) Cryptoapi developers.
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* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
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*/
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#include <asm/elf.h>
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#include <asm/opcodes.h>
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#include <asm/pstate.h>
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static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_md5_opcodes);
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asmlinkage void md5_sparc64_transform(struct md5_block_state *state,
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const u8 *data, size_t nblocks);
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static void md5_blocks(struct md5_block_state *state,
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const u8 *data, size_t nblocks)
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{
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if (static_branch_likely(&have_md5_opcodes)) {
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cpu_to_le32_array(state->h, ARRAY_SIZE(state->h));
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md5_sparc64_transform(state, data, nblocks);
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le32_to_cpu_array(state->h, ARRAY_SIZE(state->h));
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} else {
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md5_blocks_generic(state, data, nblocks);
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}
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}
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#define md5_mod_init_arch md5_mod_init_arch
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static void md5_mod_init_arch(void)
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{
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unsigned long cfr;
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if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
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return;
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__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
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if (!(cfr & CFR_MD5))
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return;
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static_branch_enable(&have_md5_opcodes);
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pr_info("Using sparc64 md5 opcode optimized MD5 implementation\n");
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}
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