From: Andrew Morton <akpm@osdl.org>
To: Vojtech Pavlik <vojtech@suse.cz>
Cc: pluto@pld-linux.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [prefetch.h] warning: pointer of type `void *' used in arithmetic'
Date: Sat, 3 Jul 2004 23:51:50 -0700 [thread overview]
Message-ID: <20040703235150.4b569f34.akpm@osdl.org> (raw)
In-Reply-To: <20040704064920.GA1194@ucw.cz>
Vojtech Pavlik <vojtech@suse.cz> wrote:
>
> On Sat, Jul 03, 2004 at 05:18:11PM -0700, Andrew Morton wrote:
> > Pawe__ Sikora <pluto@pld-linux.org> wrote:
> > >
> > > warning killed.
> >
> > > --- /var/tmp/linux/include/linux/prefetch.h.orig 2004-06-16 07:20:25.000000000 +0200
> > > +++ /var/tmp/linux/include/linux/prefetch.h 2004-07-03 18:28:10.478861720 +0200
> > > @@ -59,7 +59,7 @@
> > > {
> > > #ifdef ARCH_HAS_PREFETCH
> > > char *cp;
> > > - char *end = addr + len;
> > > + char *end = (char *)addr + len;
> >
> > What version of the compiler is generating this warning?
>
> As far as I know, any gcc if and only if you pass "-Wpointer-arith" to
> it. The kernel doesn't do that, leaving me wondering ...
>
This discussion fell off the mailing list (grr).
The warning was encountered when building the nvidia driver, and it indeed
uses -Wpointer-arith.
prev parent reply other threads:[~2004-07-04 6:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-03 16:32 Paweł Sikora
2004-07-04 0:18 ` Andrew Morton
2004-07-04 6:49 ` Vojtech Pavlik
2004-07-04 6:51 ` Andrew Morton [this message]
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