Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: api - Add cra_type->destroy hook
Add a cra_type->destroy hook so that resources can be freed after
the last user of a registered algorithm is gone.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+14
-2
+10
crypto/api.c
+10
crypto/api.c
···
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}
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EXPORT_SYMBOL_GPL(crypto_req_done);
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+
void crypto_destroy_alg(struct crypto_alg *alg)
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+
{
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+
if (alg->cra_type && alg->cra_type->destroy)
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+
alg->cra_type->destroy(alg);
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+
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+
if (alg->cra_destroy)
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+
alg->cra_destroy(alg);
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+
}
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EXPORT_SYMBOL_GPL(crypto_destroy_alg);
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+
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MODULE_DESCRIPTION("Cryptographic core API");
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MODULE_LICENSE("GPL");
+4
-2
crypto/internal.h
+4
-2
crypto/internal.h
···
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void (*show)(struct seq_file *m, struct crypto_alg *alg);
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int (*report)(struct sk_buff *skb, struct crypto_alg *alg);
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void (*free)(struct crypto_instance *inst);
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+
void (*destroy)(struct crypto_alg *alg);
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unsigned int type;
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unsigned int maskclear;
···
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const struct crypto_type *frontend, int node);
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void *crypto_clone_tfm(const struct crypto_type *frontend,
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struct crypto_tfm *otfm);
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+
void crypto_destroy_alg(struct crypto_alg *alg);
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static inline void *crypto_create_tfm(struct crypto_alg *alg,
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const struct crypto_type *frontend)
···
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static inline void crypto_alg_put(struct crypto_alg *alg)
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{
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-
if (refcount_dec_and_test(&alg->cra_refcnt) && alg->cra_destroy)
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-
alg->cra_destroy(alg);
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+
if (refcount_dec_and_test(&alg->cra_refcnt))
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+
crypto_destroy_alg(alg);
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}
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static inline int crypto_tmpl_get(struct crypto_template *tmpl)