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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>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SHA-1 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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*/
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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_sha1_opcodes);
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asmlinkage void sha1_sparc64_transform(struct sha1_block_state *state,
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const u8 *data, size_t nblocks);
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static void sha1_blocks(struct sha1_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_sha1_opcodes))
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sha1_sparc64_transform(state, data, nblocks);
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else
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sha1_blocks_generic(state, data, nblocks);
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}
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#define sha1_mod_init_arch sha1_mod_init_arch
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static void sha1_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_SHA1))
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return;
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static_branch_enable(&have_sha1_opcodes);
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pr_info("Using sparc64 sha1 opcode optimized SHA-1 implementation\n");
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}
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