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Commit 2a9faf8b authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Herbert Xu
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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: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent a83ff88b

arch/arm/crypto/crc32-ce-glue.c

+6 −0
Original line number Diff line number Diff line
@@ -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);