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lib/crypto: arm/nh: Migrate optimized code into library

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Migrate the arm32 NEON implementation of NH into lib/crypto/.  This
makes the nh() function be optimized on arm32 kernels.

Note: this temporarily makes the adiantum template not utilize the arm32
optimized NH code.  This is resolved in a later commit that converts the
adiantum template to use nh() instead of "nhpoly1305".

Link: https://lore.kernel.org/r/20251211011846.8179-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
This commit is contained in:
Eric Biggers
2025-12-10 17:18:35 -08:00
parent 7246fe6cd6
commit 29e39a11f5
7 changed files with 35 additions and 92 deletions
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1
lib/crypto/Makefile
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@@ -135,6 +135,7 @@ obj-$(CONFIG_CRYPTO_LIB_NH) += libnh.o
libnh-y := nh.o
ifeq ($(CONFIG_CRYPTO_LIB_NH_ARCH),y)
CFLAGS_nh.o += -I$(src)/$(SRCARCH)
libnh-$(CONFIG_ARM) += arm/nh-neon-core.o
endif
################################################################################