linux-kernel - Re: drivers/video/fbdev/aty/atyfb_base.c:3461:2: error: implicit declaration of function 'ioremap

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Message-ID: <20160307202937.GB22229@wotan.suse.de>
Date:	Mon, 7 Mar 2016 21:29:37 +0100
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	kbuild test robot <fengguang.wu@...el.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org,
	Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...e.de>
Subject: Re: drivers/video/fbdev/aty/atyfb_base.c:3461:2: error: implicit
 declaration of function 'ioremap_uc'


I'll send a fix. I  have it written.

 Luis

On Sun, Mar 06, 2016 at 08:14:07PM +0800, kbuild test robot wrote:
> Hi Luis,
> 
> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   67944024c1cdd897e49a09b0d6af3ea38d1388ca
> commit: 3cc2dac5be3f23414a4efdee0b26d79bed297cac drivers/video/fbdev/atyfb: Replace MTRR UC hole with strong UC
> date:   8 months ago
> config: ia64-allyesconfig (attached as .config)
> reproduce:
>         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         git checkout 3cc2dac5be3f23414a4efdee0b26d79bed297cac
>         # save the attached .config to linux build tree
>         make.cross ARCH=ia64 
> 
> All errors (new ones prefixed by >>):
> 
>    drivers/video/fbdev/aty/atyfb_base.c: In function 'atyfb_setup_generic':
> >> drivers/video/fbdev/aty/atyfb_base.c:3461:2: error: implicit declaration of function 'ioremap_uc' [-Werror=implicit-function-declaration]
>      par->ati_regbase = ioremap_uc(info->fix.mmio_start, 0x1000);
>      ^
>    drivers/video/fbdev/aty/atyfb_base.c:3461:19: warning: assignment makes pointer from integer without a cast
>      par->ati_regbase = ioremap_uc(info->fix.mmio_start, 0x1000);
>                       ^
>    cc1: some warnings being treated as errors
> 
> vim +/ioremap_uc +3461 drivers/video/fbdev/aty/atyfb_base.c
> 
>   3455	
>   3456		info->fix.mmio_start = raddr;
>   3457		/*
>   3458		 * By using strong UC we force the MTRR to never have an
>   3459		 * effect on the MMIO region on both non-PAT and PAT systems.
>   3460		 */
> > 3461		par->ati_regbase = ioremap_uc(info->fix.mmio_start, 0x1000);
>   3462		if (par->ati_regbase == NULL)
>   3463			return -ENOMEM;
>   3464	
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation



-- 
Luis Rodriguez, SUSE LINUX GmbH
Maxfeldstrasse 5; D-90409 Nuernberg