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Date:   Fri, 20 Nov 2020 12:52:38 +0800
From:   kernel test robot <lkp@...el.com>
To:     Fabio Estevam <festevam@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        linux-media@...r.kernel.org, Hans Verkuil <hverkuil@...all.nl>
Subject: drivers/media/platform/fsl-viu.c:253:2: error: implicit declaration
 of function 'out_be32'

Hi Fabio,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   4d02da974ea85a62074efedf354e82778f910d82
commit: 17621758e53f0e6bf1ac469cca2a59fa6457d205 media: fsl-viu: Do not redefine out_be32()/in_be32() for CONFIG_M68K
date:   3 months ago
config: m68k-randconfig-r016-20201120 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17621758e53f0e6bf1ac469cca2a59fa6457d205
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 17621758e53f0e6bf1ac469cca2a59fa6457d205
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   drivers/media/platform/fsl-viu.c: In function 'viu_start_dma':
>> drivers/media/platform/fsl-viu.c:253:2: error: implicit declaration of function 'out_be32' [-Werror=implicit-function-declaration]
     253 |  out_be32(&vr->status_cfg, SOFT_RST);
         |  ^~~~~~~~
   drivers/media/platform/fsl-viu.c: In function 'viu_stop_dma':
>> drivers/media/platform/fsl-viu.c:266:15: error: implicit declaration of function 'in_be32' [-Werror=implicit-function-declaration]
     266 |  status_cfg = in_be32(&vr->status_cfg);
         |               ^~~~~~~
   cc1: some warnings being treated as errors

vim +/out_be32 +253 drivers/media/platform/fsl-viu.c

95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  245  
adfcf2e980c4b61 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05  246  static void viu_start_dma(struct viu_dev *dev)
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  247  {
27e4b6cfc970369 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-06  248  	struct viu_reg __iomem *vr = dev->vr;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  249  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  250  	dev->field = 0;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  251  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  252  	/* Enable DMA operation */
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02 @253  	out_be32(&vr->status_cfg, SOFT_RST);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  254  	out_be32(&vr->status_cfg, INT_FIELD_EN);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  255  }
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  256  
adfcf2e980c4b61 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05  257  static void viu_stop_dma(struct viu_dev *dev)
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  258  {
27e4b6cfc970369 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-06  259  	struct viu_reg __iomem *vr = dev->vr;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  260  	int cnt = 100;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  261  	u32 status_cfg;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  262  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  263  	out_be32(&vr->status_cfg, 0);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  264  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  265  	/* Clear pending interrupts */
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02 @266  	status_cfg = in_be32(&vr->status_cfg);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  267  	if (status_cfg & 0x3f0000)
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  268  		out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  269  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  270  	if (status_cfg & DMA_ACT) {
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  271  		do {
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  272  			status_cfg = in_be32(&vr->status_cfg);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  273  			if (status_cfg & INT_DMA_END_STATUS)
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  274  				break;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  275  		} while (cnt--);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  276  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  277  		if (cnt < 0) {
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  278  			/* timed out, issue soft reset */
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  279  			out_be32(&vr->status_cfg, SOFT_RST);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  280  			out_be32(&vr->status_cfg, 0);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  281  		} else {
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  282  			/* clear DMA_END and other pending irqs */
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  283  			out_be32(&vr->status_cfg, status_cfg & 0x3f0000);
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  284  		}
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  285  	}
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  286  
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  287  	dev->field = 0;
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  288  }
95c5d605ca6fd6a drivers/media/video/fsl-viu.c    Anatolij Gustschin    2010-07-02  289  

:::::: The code at line 253 was first introduced by commit
:::::: 95c5d605ca6fd6ab5ab0f6d097ff97d5aa2f9235 V4L/DVB: v4l: Add MPC5121e VIU video capture driver

:::::: TO: Anatolij Gustschin <agust@...x.de>
:::::: CC: Mauro Carvalho Chehab <mchehab@...hat.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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