From: Eric Biggers <ebiggers@kernel.org>
Date: Thu, 26 Mar 2026 00:15:04 +0000 (-0700)
Subject: crypto: rng - Unexport "default RNG" symbols
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bdd2cc93bfd051f05084115faad35f9b5402a194;p=thirdparty%2Fkernel%2Flinux.git

crypto: rng - Unexport "default RNG" symbols

Now that crypto_default_rng, crypto_get_default_rng(), and
crypto_put_default_rng() have no users outside crypto/rng.c itself,
unexport them and make them static.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/rng.c b/crypto/rng.c
index 53a268ad5104f..f52f4793f9ea5 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -24,8 +24,7 @@
 #include "internal.h"
 
 static DEFINE_MUTEX(crypto_default_rng_lock);
-struct crypto_rng *crypto_default_rng;
-EXPORT_SYMBOL_GPL(crypto_default_rng);
+static struct crypto_rng *crypto_default_rng;
 static int crypto_default_rng_refcnt;
 
 int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
@@ -106,7 +105,7 @@ struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask)
 }
 EXPORT_SYMBOL_GPL(crypto_alloc_rng);
 
-int crypto_get_default_rng(void)
+static int crypto_get_default_rng(void)
 {
 	struct crypto_rng *rng;
 	int err;
@@ -135,15 +134,13 @@ unlock:
 
 	return err;
 }
-EXPORT_SYMBOL_GPL(crypto_get_default_rng);
 
-void crypto_put_default_rng(void)
+static void crypto_put_default_rng(void)
 {
 	mutex_lock(&crypto_default_rng_lock);
 	crypto_default_rng_refcnt--;
 	mutex_unlock(&crypto_default_rng_lock);
 }
-EXPORT_SYMBOL_GPL(crypto_put_default_rng);
 
 int crypto_stdrng_get_bytes(void *buf, unsigned int len)
 {
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index db6c3962a7df5..f61e037afed92 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -57,11 +57,6 @@ struct crypto_rng {
 	struct crypto_tfm base;
 };
 
-extern struct crypto_rng *crypto_default_rng;
-
-int crypto_get_default_rng(void);
-void crypto_put_default_rng(void);
-
 /**
  * crypto_stdrng_get_bytes() - get cryptographically secure random bytes
  * @buf: output buffer holding the random numbers