diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-05-21 10:23:39 +0000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-01 12:55:41 +0800 |
| commit | a83ff88bedb2794f5990439276bf0abbc4b3aeb8 (patch) | |
| tree | 18b4d6017b0c8a57032e92d2a07dc833b21d8f50 /arch | |
| parent | bd56f95ea933d1dd1628373a8213716225605d1c (diff) | |
| download | linux-a83ff88bedb2794f5990439276bf0abbc4b3aeb8.tar.gz linux-a83ff88bedb2794f5990439276bf0abbc4b3aeb8.tar.bz2 linux-a83ff88bedb2794f5990439276bf0abbc4b3aeb8.zip | |
crypto: arm/sha2-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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/crypto/sha2-ce-glue.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm/crypto/sha2-ce-glue.c b/arch/arm/crypto/sha2-ce-glue.c index 0755b2d657f3..df4dcef054ae 100644 --- a/arch/arm/crypto/sha2-ce-glue.c +++ b/arch/arm/crypto/sha2-ce-glue.c @@ -11,6 +11,7 @@ #include <crypto/internal/hash.h> #include <crypto/sha.h> #include <crypto/sha256_base.h> +#include <linux/cpufeature.h> #include <linux/crypto.h> #include <linux/module.h> @@ -100,8 +101,6 @@ static struct shash_alg algs[] = { { static int __init sha2_ce_mod_init(void) { - if (!(elf_hwcap2 & HWCAP2_SHA2)) - return -ENODEV; return crypto_register_shashes(algs, ARRAY_SIZE(algs)); } @@ -110,5 +109,5 @@ static void __exit sha2_ce_mod_fini(void) crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); } -module_init(sha2_ce_mod_init); +module_cpu_feature_match(SHA2, sha2_ce_mod_init); module_exit(sha2_ce_mod_fini); |