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crypto: scomp - allow registration of multiple scomps

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Add crypto_register_scomps and crypto_unregister_scomps to allow
the registration of multiple implementations with one call.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Giovanni Cabiddu 2017-04-21 21:54:29 +01:00 committed by Herbert Xu
parent 6263b51eb3
commit 3de4f5e1a5
2 changed files with 32 additions and 0 deletions
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29
crypto/scompress.c
View File

@ -353,5 +353,34 @@ int crypto_unregister_scomp(struct scomp_alg *alg)
} }
EXPORT_SYMBOL_GPL(crypto_unregister_scomp); EXPORT_SYMBOL_GPL(crypto_unregister_scomp);
int crypto_register_scomps(struct scomp_alg *algs, int count)
{
int i, ret;
for (i = 0; i < count; i++) {
ret = crypto_register_scomp(&algs[i]);
if (ret)
goto err;
}
return 0;
err:
for (--i; i >= 0; --i)
crypto_unregister_scomp(&algs[i]);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_register_scomps);
void crypto_unregister_scomps(struct scomp_alg *algs, int count)
{
int i;
for (i = count - 1; i >= 0; --i)
crypto_unregister_scomp(&algs[i]);
}
EXPORT_SYMBOL_GPL(crypto_unregister_scomps);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Synchronous compression type"); MODULE_DESCRIPTION("Synchronous compression type");

3
include/crypto/internal/scompress.h
View File

@ -133,4 +133,7 @@ int crypto_register_scomp(struct scomp_alg *alg);
*/ */
int crypto_unregister_scomp(struct scomp_alg *alg); int crypto_unregister_scomp(struct scomp_alg *alg);
int crypto_register_scomps(struct scomp_alg *algs, int count);
void crypto_unregister_scomps(struct scomp_alg *algs, int count);
#endif #endif