linux-kernel - Re: [PATCH] security/keys: make BIG

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Date:   Tue, 06 Sep 2016 14:11:56 +0100
From:   David Howells <dhowells@...hat.com>
To:     Artem Savkov <asavkov@...hat.com>,
        Kirill Marinushkin <k.marinushkin@...il.com>
Cc:     dhowells@...hat.com, paul.gortmaker@...driver.com,
        james.l.morris@...cle.com, keyrings@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] security/keys: make BIG_KEYS dependent on stdrng.

Artem Savkov <asavkov@...hat.com> wrote:

> > > -	select CRYPTO
> > > +	depends on (CRYPTO_ANSI_CPRNG = y || CRYPTO_DRBG = y)
> > 
> > Should those be "==" not "="?
> 
> Accodring to Documentation/kbuild/kconfig-language.txt (line 173) it is
> "=" and I can only see "=" being used in existing Kconfigs.

Okay.  The other thing is that I have been given a conflicting patch (see
below).  Is your fix preferable?

David
---
commit 69ed34b303f87a1a53470dd37149ac1573d79da2
Author: Kirill Marinushkin <k.marinushkin@...il.com>
Date: Mon, 8 Aug 2016 23:19:32 +0200

KEYS: fix big_key dependency

Signed-off-by: Kirill Marinushkin <k.marinushkin@...il.com>
cc: David Howells <dhowells@...hat.com>
cc: Peter Hlavaty <zer0mem@...oo.com>
cc: Greg KH <gregkh@...uxfoundation.org>
cc: stable@...r.kernel.org
---
 security/keys/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index f826e87..8213221 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -44,7 +44,7 @@ config BIG_KEYS
 	select CRYPTO
 	select CRYPTO_AES
 	select CRYPTO_ECB
-	select CRYPTO_RNG
+	select CRYPTO_ANSI_CPRNG
 	help
 	  This option provides support for holding large keys within the kernel
 	  (for example Kerberos ticket caches).  The data may be stored out to