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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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e96cb9507f
Consolidate the CPU-based SHA-256 code into a single module, following what I did with SHA-512: - Each arch now provides a header file lib/crypto/$(SRCARCH)/sha256.h, replacing lib/crypto/$(SRCARCH)/sha256.c. The header defines sha256_blocks() and optionally sha256_mod_init_arch(). It is included by lib/crypto/sha256.c, and thus the code gets built into the single libsha256 module, with proper inlining and dead code elimination. - sha256_blocks_generic() is moved from lib/crypto/sha256-generic.c into lib/crypto/sha256.c. It's now a static function marked with __maybe_unused, so the compiler automatically eliminates it in any cases where it's not used. - Whether arch-optimized SHA-256 is buildable is now controlled centrally by lib/crypto/Kconfig instead of by lib/crypto/$(SRCARCH)/Kconfig. The conditions for enabling it remain the same as before, and it remains enabled by default. - Any additional arch-specific translation units for the optimized SHA-256 code (such as assembly files) are now compiled by lib/crypto/Makefile instead of lib/crypto/$(SRCARCH)/Makefile. Acked-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20250630160645.3198-13-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
18 lines
546 B
Makefile
18 lines
546 B
Makefile
# SPDX-License-Identifier: GPL-2.0-only
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obj-$(CONFIG_CRYPTO_CHACHA20_NEON) += chacha-neon.o
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chacha-neon-y := chacha-neon-core.o chacha-neon-glue.o
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obj-$(CONFIG_CRYPTO_POLY1305_NEON) += poly1305-neon.o
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poly1305-neon-y := poly1305-core.o poly1305-glue.o
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AFLAGS_poly1305-core.o += -Dpoly1305_init=poly1305_block_init_arch
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AFLAGS_poly1305-core.o += -Dpoly1305_emit=poly1305_emit_arch
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quiet_cmd_perlasm = PERLASM $@
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cmd_perlasm = $(PERL) $(<) void $(@)
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$(obj)/%-core.S: $(src)/%-armv8.pl
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$(call cmd,perlasm)
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clean-files += poly1305-core.S
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