crypto: arm/aes-ce - enable module autoloading based on CPU feature bits (4d8061a5) · Commits · 戴 / test

Make the module autoloadable by tying it to the CPU feature bit that describes whether the optional instructions it relies on are implemented by the current CPU. Signed-off-by:

Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by:

Herbert Xu <herbert@gondor.apana.org.au>

arch/arm/crypto/aes-ce-glue.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -14,6 +14,7 @@
		#include <crypto/aes.h>
		#include <crypto/internal/simd.h>
		#include <crypto/internal/skcipher.h>
		#include <linux/cpufeature.h>
		#include <linux/module.h>
		#include <crypto/xts.h>

		@@ -425,9 +426,6 @@ static int __init aes_init(void)
		int err;
		int i;

		if (!(elf_hwcap2 & HWCAP2_AES))
		return -ENODEV;

		err = crypto_register_skciphers(aes_algs, ARRAY_SIZE(aes_algs));
		if (err)
		return err;
		@@ -451,5 +449,5 @@ unregister_simds:
		return err;
		}

		module_init(aes_init);
		module_cpu_feature_match(AES, aes_init);
		module_exit(aes_exit);

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