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| author | Eric Biggers <ebiggers@google.com> | 2024-10-18 16:53:43 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2024-10-28 18:33:11 +0800 |
| commit | 4964a1d91cd186b423666aac6d4ad3a61cf88b54 (patch) | |
| tree | 6008b1d12649f709eb8a976e64a30ed30e4fa9b0 /lib/crypto | |
| parent | 53d91ca76b6c426c546542a44c78507b42008c9e (diff) | |
| download | lwn-4964a1d91cd186b423666aac6d4ad3a61cf88b54.tar.gz lwn-4964a1d91cd186b423666aac6d4ad3a61cf88b54.zip | |
crypto: api - move crypto_simd_disabled_for_test to lib
Move crypto_simd_disabled_for_test to lib/ so that crypto_simd_usable()
can be used by library code.
This was discussed previously
(https://lore.kernel.org/linux-crypto/20220716062920.210381-4-ebiggers@kernel.org/)
but was not done because there was no use case yet. However, this is
now needed for the arm64 CRC32 library code.
Tested with:
export ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-
echo CONFIG_CRC32=y > .config
echo CONFIG_MODULES=y >> .config
echo CONFIG_CRYPTO=m >> .config
echo CONFIG_DEBUG_KERNEL=y >> .config
echo CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=n >> .config
echo CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y >> .config
make olddefconfig
make -j$(nproc)
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'lib/crypto')
| -rw-r--r-- | lib/crypto/Makefile | 2 | ||||
| -rw-r--r-- | lib/crypto/simd.c | 11 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile index 969baab8c805..01fac1cd05a1 100644 --- a/lib/crypto/Makefile +++ b/lib/crypto/Makefile @@ -58,3 +58,5 @@ libcurve25519-y += curve25519-selftest.o endif obj-$(CONFIG_MPILIB) += mpi/ + +obj-$(CONFIG_CRYPTO_MANAGER_EXTRA_TESTS) += simd.o diff --git a/lib/crypto/simd.c b/lib/crypto/simd.c new file mode 100644 index 000000000000..9c36cb3bb49c --- /dev/null +++ b/lib/crypto/simd.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * SIMD testing utility functions + * + * Copyright 2024 Google LLC + */ + +#include <crypto/internal/simd.h> + +DEFINE_PER_CPU(bool, crypto_simd_disabled_for_test); +EXPORT_PER_CPU_SYMBOL_GPL(crypto_simd_disabled_for_test); |