Date: Thu, 1 Apr 2010 09:53:04 +0200
From: Bruno =?UTF-8?B?UHLDqW1vbnQ=?= <bonbons@linux-vserver.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>, Jiri Kosina <jkosina@suse.cz>
Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (hid
 tree related)
Message-ID: <20100401095304.487fffb4@pluto.restena.lu>
In-Reply-To: <20100401183530.516bbca6.sfr@canb.auug.org.au>
References: <20100401170639.9f2fe605.sfr@canb.auug.org.au>
	<alpine.LNX.2.00.1004010817420.8345@pobox.suse.cz>
	<20100401183530.516bbca6.sfr@canb.auug.org.au>
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Hi Jiri, Stephen,

Wondering why x86 (32bit and 64bit) does not need to include the
header but other arches (at least powerpc) need it.

Any idea via which header linux/uaccess.h gets included on x86?
If nobody has checked by the time I get home I will determine that.

Thanks,
Bruno


On Thu, 1 Apr 2010 18:35:30 Stephen Rothwell wrote:
> Hi Jiri,
> 
> On Thu, 1 Apr 2010 08:18:43 +0200 (CEST) Jiri Kosina
> <jkosina@suse.cz> wrote:
> >
> > On Thu, 1 Apr 2010, Stephen Rothwell wrote:
> > 
> > > After merging the final tree, today's linux-next build (powerpc
> > > allyesconfig) failed like this:
> > > 
> > > drivers/hid/hid-picolcd.c: In function
> > > 'picolcd_debug_reset_write': drivers/hid/hid-picolcd.c:1343:
> > > error: implicit declaration of function 'copy_from_user'
> > > drivers/hid/hid-picolcd.c: In function
> > > 'picolcd_debug_eeprom_read': drivers/hid/hid-picolcd.c:1407:
> > > error: implicit declaration of function 'copy_to_user'
> > > 
> > > Caused by commit 9bbf2b98ba11d00bd73e3254e15cfe17ccaff6ba ("HID:
> > > add experimental access to PicoLCD device's EEPROM and FLASH").
> > > Using copy_ {to,from}_user requires the include of
> > > linux/uaccess.h.
> > > 
> > > I have reverted that commit for today.
> > 
> > Hmm, on which arch did this bomb out? I wonder why it is building
> > fine for me.
> 
> PowerPC (see above).  It could also be some interaction with another
> tree in linux-next.
> 
> > Anyway, I have added the include, as it is obviously correct(tm),
> > thanks for reporting it.
> 
> Thanks.
> 
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