From dd8b083f9a5ed06946d559e0ca1eda0577ef24a9 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Thu, 30 Aug 2018 11:00:14 -0400 Subject: crypto: api - Introduce notifier for new crypto algorithms Introduce a facility that can be used to receive a notification callback when a new algorithm becomes available. This can be used by existing crypto registrations to trigger a switch from a software-only algorithm to a hardware-accelerated version. A new CRYPTO_MSG_ALG_LOADED state is introduced to the existing crypto notification chain, and the register/unregister functions are exported so they can be called by subsystems outside of crypto. Signed-off-by: Martin K. Petersen Suggested-by: Herbert Xu Signed-off-by: Martin K. Petersen Signed-off-by: Herbert Xu --- include/crypto/algapi.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include/crypto') diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 21371ac8f355..4a5ad10e75f0 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -427,4 +427,14 @@ static inline void crypto_yield(u32 flags) #endif } +int crypto_register_notifier(struct notifier_block *nb); +int crypto_unregister_notifier(struct notifier_block *nb); + +/* Crypto notification events. */ +enum { + CRYPTO_MSG_ALG_REQUEST, + CRYPTO_MSG_ALG_REGISTER, + CRYPTO_MSG_ALG_LOADED, +}; + #endif /* _CRYPTO_ALGAPI_H */ -- cgit v1.2.3