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@xxxxxxxxxx>
> 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
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