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

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 @@ unregister_simds:
return err;
}
module_init(aes_init);
module_cpu_feature_match(AES, aes_init);
module_exit(aes_exit);