From: Joe Perches <joe@perches•com>
To: Stephan Mueller <smueller@chronox•de>
Cc: Stephen Rothwell <sfr@canb•auug.org.au>,
Herbert Xu <herbert@gondor•apana.org.au>,
kbuild test robot <fengguang.wu@intel•com>,
kbuild@01•org, Dan Carpenter <dan.carpenter@oracle•com>,
linux-crypto@vger•kernel.org,
Randy Dunlap <rdunlap@infradead•org>,
linux-next@vger•kernel.org, linux-kernel@vger•kernel.org
Subject: Re: [PATCH 3/4] DRBG: Fix format string for debugging statements
Date: Sat, 28 Jun 2014 20:53:19 -0700 [thread overview]
Message-ID: <1404013999.9064.50.camel@joe-AO725> (raw)
In-Reply-To: <4311965.FMe9YfRAnU@myon.chronox.de>
On Sun, 2014-06-29 at 05:46 +0200, Stephan Mueller wrote:
> Am Sonntag, 29. Juni 2014, 12:24:02 schrieb Stephen Rothwell:
>
> Hi Stephen,
>
> > Hi Stephan,
> >
> > On Sat, 28 Jun 2014 22:01:46 +0200 Stephan Mueller <smueller@chronox•de>
> wrote:
> > > @@ -1987,8 +1987,9 @@ static int __init drbg_init(void)
> > >
> > > if (ARRAY_SIZE(drbg_cores) * 2 > ARRAY_SIZE(drbg_algs)) {
> > >
> > > pr_info("DRBG: Cannot register all DRBG types"
> > >
> > > - "(slots needed: %lu, slots available: %lu)\n",
> > > - ARRAY_SIZE(drbg_cores) * 2, ARRAY_SIZE(drbg_algs));
> > > + "(slots needed: %u, slots available: %u)\n",
> > > + (unsigned int)ARRAY_SIZE(drbg_cores) * 2,
> > > + (unsigned int)ARRAY_SIZE(drbg_algs));
> >
> > Doesn't ARRAY_SIZE() always return a size_t? In which case surely we
> > need no casts, but need to us %zu in the format string.
>
> Unfortunately not at all. On my x86_64, I get the compiler warning that
> ARRAY_SIZE is a long unsigned int without the cast.
This should fix that.
---
include/linux/kernel.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 6e3d497..58bc57d 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -51,7 +51,8 @@
#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
#define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0)
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
+#define ARRAY_SIZE(arr) \
+ (sizeof(arr) / sizeof((arr)[0]) + (size_t)__must_be_array(arr))
/*
* This looks more complex than it should be. But we need to
next prev parent reply other threads:[~2014-06-29 3:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-28 19:57 [PATCH 0/4] DRBG: Fixes for sparse tool reports Stephan Mueller
2014-06-28 19:58 ` [PATCH 1/4] DRBG: use of kernel linked list Stephan Mueller
2014-07-04 14:11 ` Herbert Xu
2014-06-28 20:00 ` [PATCH 2/4] DRBG: cleanup of preprocessor macros Stephan Mueller
2014-06-29 2:20 ` Stephen Rothwell
2014-06-29 5:07 ` Stephan Mueller
2014-06-29 7:41 ` Randy Dunlap
2014-06-29 11:37 ` Stephan Mueller
2014-07-04 14:15 ` Herbert Xu
2014-07-05 0:03 ` Stephan Mueller
2014-06-28 20:01 ` [PATCH 3/4] DRBG: Fix format string for debugging statements Stephan Mueller
2014-06-29 2:24 ` Stephen Rothwell
2014-06-29 3:46 ` Stephan Mueller
2014-06-29 3:53 ` Joe Perches [this message]
2014-06-29 4:54 ` Stephan Mueller
2014-07-04 11:21 ` Dan Carpenter
2014-07-04 16:57 ` Joe Perches
2014-07-04 23:57 ` Stephan Mueller
2014-07-05 0:09 ` Joe Perches
2014-07-05 0:15 ` Stephan Mueller
2014-07-05 0:24 ` Joe Perches
2014-07-05 0:27 ` Stephan Mueller
2014-06-28 20:04 ` [PATCH 4/4] DRBG: Call CTR DRBG DF function only once Stephan Mueller
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