[PATCH v2] media: mediatek: vcodec: support stateless hevc decoder

[kernel test robot]

Hi Yunfei,

kernel test robot noticed the following build warnings:

[auto build test WARNING on media-tree/master]
[also build test WARNING on linus/master v6.3 next-20230427]
[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/Yunfei-Dong/media-mediatek-vcodec-support-stateless-hevc-decoder/20230428-162427
base:   git://linuxtv.org/media_tree.git master
patch link:    https://lore.kernel.org/r/20230428082329.28606-1-yunfei.dong%40mediatek.com
patch subject: [PATCH v2] media: mediatek: vcodec: support stateless hevc decoder
config: sparc-allyesconfig (https://download.01.org/0day-ci/archive/20230428/202304281935.cHbo4d1P-lkp@intel.com/config)
compiler: sparc64-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/193b8e8eece4506c90eac97b973ef059aaf5c0e1
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Yunfei-Dong/media-mediatek-vcodec-support-stateless-hevc-decoder/20230428-162427
        git checkout 193b8e8eece4506c90eac97b973ef059aaf5c0e1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc SHELL=/bin/bash drivers/media/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304281935.cHbo4d1P-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c: In function 'vdec_hevc_fill_dpb_info':
>> drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c:412:24: warning: ordered comparison of pointer with integer zero [-Wextra]
     412 |                 if (vb < 0) {
         |                        ^
   drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c: In function 'vdec_hevc_copy_decode_params':
   drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c:587:63: error: 'const struct v4l2_ctrl_hevc_decode_params' has no member named 'num_delta_pocs_of_ref_rps_idx'
     587 |         dst_params->num_delta_pocs_of_ref_rps_idx = src_params->num_delta_pocs_of_ref_rps_idx;
         |                                                               ^~
   drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c: In function 'vdec_hevc_slice_fill_decode_parameters':
   drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c:630:27: error: 'const struct v4l2_ctrl_hevc_decode_params' has no member named 'num_delta_pocs_of_ref_rps_idx'
     630 |                 dec_params->num_delta_pocs_of_ref_rps_idx;
         |                           ^~


vim +412 drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.c

   395	
   396	static void vdec_hevc_fill_dpb_info(struct mtk_vcodec_ctx *ctx,
   397					    struct slice_api_hevc_decode_param *decode_params,
   398					    struct mtk_hevc_dpb_info *hevc_dpb_info)
   399	{
   400		const struct slice_hevc_dpb_entry *dpb;
   401		struct vb2_queue *vq;
   402		struct vb2_buffer *vb;
   403		int index;
   404	
   405		vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
   406		for (index = 0; index < V4L2_HEVC_DPB_ENTRIES_NUM_MAX; index++) {
   407			dpb = &decode_params->dpb[index];
   408			if (index >= decode_params->num_active_dpb_entries)
   409				continue;
   410	
   411			vb = vb2_find_buffer(vq, dpb->timestamp);
 > 412			if (vb < 0) {
   413				dev_err(&ctx->dev->plat_dev->dev,
   414					"Reference invalid: dpb_index(%d) timestamp(%lld)",
   415					index, dpb->timestamp);
   416				continue;
   417			}
   418	
   419			hevc_dpb_info[index].field = dpb->field_pic;
   420	
   421			hevc_dpb_info[index].y_dma_addr = vb2_dma_contig_plane_dma_addr(vb, 0);
   422			if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2)
   423				hevc_dpb_info[index].c_dma_addr = vb2_dma_contig_plane_dma_addr(vb, 1);
   424			else
   425				hevc_dpb_info[index].c_dma_addr =
   426					hevc_dpb_info[index].y_dma_addr + ctx->picinfo.fb_sz[0];
   427		}
   428	}
   429	

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https://github.com/intel/lkp-tests