linux-kernel - [PATCH] DRBG: fix bit shifting on 32 bit systems

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Message-ID: <6371777.WdUEAKFPYo@myon.chronox.de>
Date:	Tue, 26 Aug 2014 09:31:02 +0200
From:	Stephan Mueller <smueller@...onox.de>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] DRBG: fix bit shifting on 32 bit systems

Use ULL to mark a 64 bit value.

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Reported-by: kbuild test robot <fengguang.wu@...el.com>
Signed-off-by: Stephan Mueller <smueller@...onox.de>
---
 include/crypto/drbg.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index 3d8e73a..dd52aee 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -154,13 +154,13 @@ static inline size_t drbg_max_request_bytes(struct drbg_state *drbg)
 static inline size_t drbg_max_addtl(struct drbg_state *drbg)
 {
 	/* SP800-90A requires 2**35 bytes additional info str / pers str */
-	return (1UL<<35);
+	return (1ULL<<35);
 }
 
 static inline size_t drbg_max_requests(struct drbg_state *drbg)
 {
 	/* SP800-90A requires 2**48 maximum requests before reseeding */
-	return (1UL<<48);
+	return (1ULL<<48);
 }
 
 /*
-- 
1.9.3


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