[PATCH 2/5] crypto: arm/aes-ce - enable module autoloading based on CPU feature bits
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STALE3589d
SUPERSEDED
From: Ard Biesheuvel <hidden>
Date: 2016-10-18 10:52:34
Also in:
linux-crypto
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Status: Superseded by v2 (posted 2017-01-11). [go to v2]
Revision v1 (2 revisions archived).
Revisions (2)
- v1 current
- v2 [diff against previous]
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 <redacted>
---
arch/arm/crypto/aes-ce-glue.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/crypto/aes-ce-glue.c b/arch/arm/crypto/aes-ce-glue.c
index aef022a87c53..5b1af6f8b2b5 100644
--- a/arch/arm/crypto/aes-ce-glue.c
+++ b/arch/arm/crypto/aes-ce-glue.c@@ -14,6 +14,7 @@ #include <crypto/aes.h> #include <crypto/ablk_helper.h> #include <crypto/algapi.h> +#include <linux/cpufeature.h> #include <linux/module.h> #include <crypto/xts.h>
@@ -515,8 +516,6 @@ static struct crypto_alg aes_algs[] = { { static int __init aes_init(void) { - if (!(elf_hwcap2 & HWCAP2_AES)) - return -ENODEV; return crypto_register_algs(aes_algs, ARRAY_SIZE(aes_algs)); }
@@ -525,5 +524,5 @@ static void __exit aes_exit(void) crypto_unregister_algs(aes_algs, ARRAY_SIZE(aes_algs)); } -module_init(aes_init); +module_cpu_feature_match(AES, aes_init); module_exit(aes_exit);
--
2.7.4