crypto: acomp - allow registration of multiple acomps

Add crypto_register_acomps and crypto_unregister_acomps to allow the registration of multiple implementations with one call. Signed-off-by: Giovanni Cabiddu <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
josf · Apr 21, 2017 · 3ce5bc7 · 3ce5bc7
1 parent b2a1d27
commit 3ce5bc7
Show file tree

Hide file tree

Showing 2 changed files with 32 additions and 0 deletions.
diff --git a/crypto/acompress.c b/crypto/acompress.c
@@ -166,5 +166,34 @@ int crypto_unregister_acomp(struct acomp_alg *alg)
 }
 EXPORT_SYMBOL_GPL(crypto_unregister_acomp);
 
+int crypto_register_acomps(struct acomp_alg *algs, int count)
+{
+	int i, ret;
+
+	for (i = 0; i < count; i++) {
+		ret = crypto_register_acomp(&algs[i]);
+		if (ret)
+			goto err;
+	}
+
+	return 0;
+
+err:
+	for (--i; i >= 0; --i)
+		crypto_unregister_acomp(&algs[i]);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_register_acomps);
+
+void crypto_unregister_acomps(struct acomp_alg *algs, int count)
+{
+	int i;
+
+	for (i = count - 1; i >= 0; --i)
+		crypto_unregister_acomp(&algs[i]);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_acomps);
+
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Asynchronous compression type");
diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h
@@ -78,4 +78,7 @@ int crypto_register_acomp(struct acomp_alg *alg);
  */
 int crypto_unregister_acomp(struct acomp_alg *alg);
 
+int crypto_register_acomps(struct acomp_alg *algs, int count);
+void crypto_unregister_acomps(struct acomp_alg *algs, int count);
+
 #endif