Re: [PATCH V2 4/4] media: ti-vpe: Add the VIP driver

[kernel test robot <lkp@intel.com>]

Hi Yemike,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linuxtv-media-pending/master]
[also build test WARNING on sailus-media-tree/master next-20250716]
[cannot apply to robh/for-next linus/master sailus-media-tree/streams v6.16-rc6]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Yemike-Abhilash-Chandra/MAINTAINERS-Update-maintainers-of-TI-VPE-and-CAL/20250716-192326
base:   https://git.linuxtv.org/media-ci/media-pending.git master
patch link:    https://lore.kernel.org/r/20250716111912.235157-5-y-abhilashchandra%40ti.com
patch subject: [PATCH V2 4/4] media: ti-vpe: Add the VIP driver
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20250717/202507171820.SxYjRSbE-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250717/202507171820.SxYjRSbE-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507171820.SxYjRSbE-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/media/platform/ti/vpe/vip.c: In function 'populate_desc_list':
>> drivers/media/platform/ti/vpe/vip.c:828:22: warning: variable 'list_length' set but not used [-Wunused-but-set-variable]
     828 |         unsigned int list_length;
         |                      ^~~~~~~~~~~
   drivers/media/platform/ti/vpe/vip.c: In function 'vip_create_streams':
>> drivers/media/platform/ti/vpe/vip.c:3382:43: warning: variable 'bus' set but not used [-Wunused-but-set-variable]
    3382 |         struct v4l2_mbus_config_parallel *bus;
         |                                           ^~~
   drivers/media/platform/ti/vpe/vip.c: In function 'vip_probe':
>> drivers/media/platform/ti/vpe/vip.c:3677:25: warning: variable 'pinctrl' set but not used [-Wunused-but-set-variable]
    3677 |         struct pinctrl *pinctrl;
         |                         ^~~~~~~


vim +/list_length +828 drivers/media/platform/ti/vpe/vip.c

   823	
   824	static void populate_desc_list(struct vip_stream *stream)
   825	{
   826		struct vip_port *port = stream->port;
   827		struct vip_dev *dev = port->dev;
 > 828		unsigned int list_length;
   829	
   830		stream->desc_next = stream->desc_list.buf.addr;
   831		add_stream_dtds(stream);
   832	
   833		list_length = stream->desc_next - stream->desc_list.buf.addr;
   834		vpdma_map_desc_buf(dev->shared->vpdma, &stream->desc_list.buf);
   835	}
   836	

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