Re: [PATCH v3 2/2] media: ov2680: Add Omnivision OV2680 sensor driver

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Hi Rui,

I love your patch! Yet something to improve:

[auto build test ERROR on v4.16-rc4]
[cannot apply to next-20180314]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Rui-Miguel-Silva/media-Introduce-Omnivision-OV2680-driver/20180315-020617
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=sh 

All errors (new ones prefixed by >>):

   drivers/media/i2c/ov2680.c: In function 'ov2680_set_fmt':
>> drivers/media/i2c/ov2680.c:713:9: error: implicit declaration of function 'v4l2_find_nearest_size'; did you mean 'v4l2_find_nearest_format'? [-Werror=implicit-function-declaration]
     mode = v4l2_find_nearest_size(ov2680_mode_data,
            ^~~~~~~~~~~~~~~~~~~~~~
            v4l2_find_nearest_format
>> drivers/media/i2c/ov2680.c:714:41: error: 'width' undeclared (first use in this function)
              ARRAY_SIZE(ov2680_mode_data), width,
                                            ^~~~~
   drivers/media/i2c/ov2680.c:714:41: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/media/i2c/ov2680.c:715:11: error: 'height' undeclared (first use in this function); did you mean 'hweight8'?
              height, fmt->width, fmt->height);
              ^~~~~~
              hweight8
   cc1: some warnings being treated as errors

vim +713 drivers/media/i2c/ov2680.c

   693	
   694	static int ov2680_set_fmt(struct v4l2_subdev *sd,
   695				  struct v4l2_subdev_pad_config *cfg,
   696				  struct v4l2_subdev_format *format)
   697	{
   698		struct ov2680_dev *sensor = to_ov2680_dev(sd);
   699		struct v4l2_mbus_framefmt *fmt = &format->format;
   700		const struct ov2680_mode_info *mode;
   701		int ret = 0;
   702	
   703		if (format->pad != 0)
   704			return -EINVAL;
   705	
   706		mutex_lock(&sensor->lock);
   707	
   708		if (sensor->is_streaming) {
   709			ret = -EBUSY;
   710			goto unlock;
   711		}
   712	
 > 713		mode = v4l2_find_nearest_size(ov2680_mode_data,
 > 714					      ARRAY_SIZE(ov2680_mode_data), width,
 > 715					      height, fmt->width, fmt->height);
   716		if (!mode) {
   717			ret = -EINVAL;
   718			goto unlock;
   719		}
   720	
   721		if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
   722			fmt = v4l2_subdev_get_try_format(sd, cfg, 0);
   723	
   724			*fmt = format->format;
   725			goto unlock;
   726		}
   727	
   728		fmt->width = mode->width;
   729		fmt->height = mode->height;
   730		fmt->code = sensor->fmt.code;
   731		fmt->colorspace = sensor->fmt.colorspace;
   732	
   733		sensor->current_mode = mode;
   734		sensor->fmt = format->format;
   735		sensor->mode_pending_changes = true;
   736	
   737	unlock:
   738		mutex_unlock(&sensor->lock);
   739	
   740		return ret;
   741	}
   742	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Attachment: .config.gz
Description: application/gzip


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