Re: [PATCH 09/13] imx274: get rid of mode_index

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Hi Luca,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on v4.16 next-20180413]
[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/Luca-Ceresoli/imx274-add-cropping-and-misc-improvements/20180413-234459
base:   git://linuxtv.org/media_tree.git master
config: i386-randconfig-x017-201814 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from include/linux/printk.h:329:0,
                    from include/linux/kernel.h:14,
                    from include/linux/clk.h:16,
                    from drivers/media/i2c/imx274.c:22:
   drivers/media/i2c/imx274.c: In function 'imx274_s_stream':
>> drivers/media/i2c/imx274.c:1027:32: warning: format '%lu' expects argument of type 'long unsigned int', but argument 6 has type 'int' [-Wformat=]
     dev_dbg(&imx274->client->dev, "%s : %s, mode index %lu\n", __func__,
                                   ^
   drivers/media/i2c/imx274.c:1029:3:
      imx274->mode - &imx274_formats[0]);
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dynamic_debug.h:135:39: note: in definition of macro 'dynamic_dev_dbg'
      __dynamic_dev_dbg(&descriptor, dev, fmt, \
                                          ^~~
>> drivers/media/i2c/imx274.c:1027:2: note: in expansion of macro 'dev_dbg'
     dev_dbg(&imx274->client->dev, "%s : %s, mode index %lu\n", __func__,
     ^~~~~~~

vim +1027 drivers/media/i2c/imx274.c

  1011	
  1012	/**
  1013	 * imx274_s_stream - It is used to start/stop the streaming.
  1014	 * @sd: V4L2 Sub device
  1015	 * @on: Flag (True / False)
  1016	 *
  1017	 * This function controls the start or stop of streaming for the
  1018	 * imx274 sensor.
  1019	 *
  1020	 * Return: 0 on success, errors otherwise
  1021	 */
  1022	static int imx274_s_stream(struct v4l2_subdev *sd, int on)
  1023	{
  1024		struct stimx274 *imx274 = to_imx274(sd);
  1025		int ret = 0;
  1026	
> 1027		dev_dbg(&imx274->client->dev, "%s : %s, mode index %lu\n", __func__,
  1028			on ? "Stream Start" : "Stream Stop",
  1029			imx274->mode - &imx274_formats[0]);
  1030	
  1031		mutex_lock(&imx274->lock);
  1032	
  1033		if (on) {
  1034			/* load mode registers */
  1035			ret = imx274_mode_regs(imx274);
  1036			if (ret)
  1037				goto fail;
  1038	
  1039			/*
  1040			 * update frame rate & expsoure. if the last mode is different,
  1041			 * HMAX could be changed. As the result, frame rate & exposure
  1042			 * are changed.
  1043			 * gain is not affected.
  1044			 */
  1045			ret = imx274_set_frame_interval(imx274,
  1046							imx274->frame_interval);
  1047			if (ret)
  1048				goto fail;
  1049	
  1050			/* update exposure time */
  1051			ret = __v4l2_ctrl_s_ctrl(imx274->ctrls.exposure,
  1052						 imx274->ctrls.exposure->val);
  1053			if (ret)
  1054				goto fail;
  1055	
  1056			/* start stream */
  1057			ret = imx274_start_stream(imx274);
  1058			if (ret)
  1059				goto fail;
  1060		} else {
  1061			/* stop stream */
  1062			ret = imx274_write_table(imx274, imx274_stop);
  1063			if (ret)
  1064				goto fail;
  1065		}
  1066	
  1067		mutex_unlock(&imx274->lock);
  1068		dev_dbg(&imx274->client->dev, "%s : Done\n", __func__);
  1069		return 0;
  1070	
  1071	fail:
  1072		mutex_unlock(&imx274->lock);
  1073		dev_err(&imx274->client->dev, "s_stream failed\n");
  1074		return ret;
  1075	}
  1076	

---
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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