linux-kernel - [PATCH v2] crypto: skcipher: remove the exporting of skcipher_walk

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Date:   Tue, 19 Jun 2018 23:23:57 +0300
From:   efremov@...ux.com
To:     Herbert Xu <herbert@...dor.apana.org.au>
Cc:     Eric Biggers <ebiggers3@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        ldv-project@...uxtesting.org, Denis Efremov <efremov@...ux.com>
Subject: [PATCH v2] crypto: skcipher: remove the exporting of skcipher_walk_next

The function skcipher_walk_next declared as static and marked as
EXPORT_SYMBOL_GPL. It's a bit confusing for internal function to be
exported. The area of visibility for such function is its .c file
and all other modules. Other *.c files of the same module can't use it,
despite all other modules can. Relying on the fact that this is the
internal function and it's not a crucial part of the API, the patch
just removes the EXPORT_SYMBOL_GPL marking of skcipher_walk_next.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Denis Efremov <efremov@...ux.com>
---
 crypto/skcipher.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index 0fe2a2923ad0..7d6a49fe3047 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -387,7 +387,6 @@ static int skcipher_walk_next(struct skcipher_walk *walk)
 	}
 	return err;
 }
-EXPORT_SYMBOL_GPL(skcipher_walk_next);

 static int skcipher_copy_iv(struct skcipher_walk *walk)
 {
-- 
2.17.1