[PATCH] crypto: Add bulk algorithm registration interface
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STALE5379d
From: Mark Brown <hidden>
Date: 2012-01-17 23:34:38
Subsystem:
crypto api, the rest · Maintainers:
Herbert Xu, "David S. Miller", Linus Torvalds
Hardware crypto engines frequently need to register a selection of different algorithms with the core. Simplify their code slightly, especially the error handling, by providing functions to register a number of algorithms in a single call. Signed-off-by: Mark Brown <redacted> --- crypto/algapi.c | 35 +++++++++++++++++++++++++++++++++++ include/linux/crypto.h | 2 ++ 2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/crypto/algapi.c b/crypto/algapi.c
index 9d4a9fe..056571b 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c@@ -405,6 +405,41 @@ int crypto_unregister_alg(struct crypto_alg *alg) } EXPORT_SYMBOL_GPL(crypto_unregister_alg); +int crypto_register_algs(struct crypto_alg *algs, int count) +{ + int i, ret; + + for (i = 0; i < count; i++) { + ret = crypto_register_alg(&algs[i]); + if (ret) + goto err; + } + + return 0; + +err: + for (--i; i >= 0; --i) + crypto_unregister_alg(&algs[i]); + + return ret; +} +EXPORT_SYMBOL_GPL(crypto_register_algs); + +int crypto_unregister_algs(struct crypto_alg *algs, int count) +{ + int i, ret; + + for (i = 0; i < count; i++) { + ret = crypto_unregister_alg(&algs[i]); + if (ret) + pr_err("Failed to unregister %s %s: %d\n", + algs[i].cra_driver_name, algs[i].cra_name, ret); + } + + return 0; +} +EXPORT_SYMBOL_GPL(crypto_unregister_algs); + int crypto_register_template(struct crypto_template *tmpl) { struct crypto_template *q;
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index a8fa654..48ce547 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h@@ -314,6 +314,8 @@ struct crypto_alg { */ int crypto_register_alg(struct crypto_alg *alg); int crypto_unregister_alg(struct crypto_alg *alg); +int crypto_register_algs(struct crypto_alg *algs, int count); +int crypto_unregister_algs(struct crypto_alg *algs, int count); /* * Algorithm query interface.
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