From: Giovanni Cabiddu Subject: [PATCH v2 1/2] crypto: scomp - allow registration of multiple scomps Date: Fri, 21 Apr 2017 21:54:29 +0100 Message-ID: <20170421205430.11551-1-giovanni.cabiddu@intel.com> Cc: linux-crypto@vger.kernel.org, weigang.li@intel.com, giovanni.cabiddu@gmail.com, Giovanni Cabiddu To: herbert@gondor.apana.org.au Return-path: Received: from mga01.intel.com ([192.55.52.88]:2991 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1040858AbdDUUyn (ORCPT ); Fri, 21 Apr 2017 16:54:43 -0400 Sender: linux-crypto-owner@vger.kernel.org List-ID: Add crypto_register_scomps and crypto_unregister_scomps to allow the registration of multiple implementations with one call. Signed-off-by: Giovanni Cabiddu --- crypto/scompress.c | 29 +++++++++++++++++++++++++++++ include/crypto/internal/scompress.h | 3 +++ 2 files changed, 32 insertions(+) diff --git a/crypto/scompress.c b/crypto/scompress.c index 6b048b3..ae1d3cf 100644 --- a/crypto/scompress.c +++ b/crypto/scompress.c @@ -353,5 +353,34 @@ int crypto_unregister_scomp(struct scomp_alg *alg) } 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_DESCRIPTION("Synchronous compression type"); diff --git a/include/crypto/internal/scompress.h b/include/crypto/internal/scompress.h index 3fda3c5..ccad9b2 100644 --- a/include/crypto/internal/scompress.h +++ b/include/crypto/internal/scompress.h @@ -133,4 +133,7 @@ int crypto_register_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 -- 2.9.3