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crypto: arm/aes-ce - enable module autoloading based on CPU feature bits

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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>
This commit is contained in:
Ard Biesheuvel 2017-05-21 10:23:36 +00:00 committed by Herbert Xu
parent 6507c57bb0
commit 4d8061a591
1 changed files with 2 additions and 4 deletions
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6
arch/arm/crypto/aes-ce-glue.c
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@ -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 @@ static int __init aes_init(void)
return err;
}
module_init(aes_init);
module_cpu_feature_match(AES, aes_init);
module_exit(aes_exit);