linux-stable/lib/crypto/simd.c

// 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);
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> 2024-10-18 23:53:43 +00:00			`// 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);`