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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-05-21 13:23:40 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-01 07:55:42 +0300 |
| commit | 2a9faf8b7e4350967ed7b59e39522972b9ead0c9 (patch) | |
| tree | 91f3db02468438a126b98d00b8247d42010fe4e4 /arch/arm/crypto | |
| parent | a83ff88bedb2794f5990439276bf0abbc4b3aeb8 (diff) | |
| download | linux-2a9faf8b7e4350967ed7b59e39522972b9ead0c9.tar.xz | |
crypto: arm/crc32 - enable module autoloading based on CPU feature bits
Make the module autoloadable by tying it to the CPU feature bits that
describe 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/arm/crypto')
| -rw-r--r-- | arch/arm/crypto/crc32-ce-glue.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/crypto/crc32-ce-glue.c b/arch/arm/crypto/crc32-ce-glue.c index e1566bec1016..1b0e0e86ee9c 100644 --- a/arch/arm/crypto/crc32-ce-glue.c +++ b/arch/arm/crypto/crc32-ce-glue.c @@ -8,6 +8,7 @@ * published by the Free Software Foundation. */ +#include <linux/cpufeature.h> #include <linux/crc32.h> #include <linux/init.h> #include <linux/kernel.h> @@ -233,6 +234,11 @@ static void __exit crc32_pmull_mod_exit(void) ARRAY_SIZE(crc32_pmull_algs)); } +static const struct cpu_feature crc32_cpu_feature[] = { + { cpu_feature(CRC32) }, { cpu_feature(PMULL) }, { } +}; +MODULE_DEVICE_TABLE(cpu, crc32_cpu_feature); + module_init(crc32_pmull_mod_init); module_exit(crc32_pmull_mod_exit); |