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crypto: add crypto_has_kpp()
Add helper function to determine if a given key-agreement protocol primitive is supported. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -104,6 +104,12 @@ int crypto_grab_kpp(struct crypto_kpp_spawn *spawn,
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}
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EXPORT_SYMBOL_GPL(crypto_grab_kpp);
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int crypto_has_kpp(const char *alg_name, u32 type, u32 mask)
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{
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return crypto_type_has_alg(alg_name, &crypto_kpp_type, type, mask);
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}
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EXPORT_SYMBOL_GPL(crypto_has_kpp);
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static void kpp_prepare_alg(struct kpp_alg *alg)
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{
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struct crypto_alg *base = &alg->base;
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@ -104,6 +104,8 @@ struct kpp_alg {
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*/
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struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask);
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int crypto_has_kpp(const char *alg_name, u32 type, u32 mask);
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static inline struct crypto_tfm *crypto_kpp_tfm(struct crypto_kpp *tfm)
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{
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return &tfm->base;
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