Hi Ezequiel, url: https://github.com/0day-ci/linux/commits/Ezequiel-Garcia/MPEG-2-stateless-API-cleanup/20201106-045304 base: git://linuxtv.org/media_tree.git master config: i386-randconfig-m021-20201110 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> smatch warnings: drivers/media/v4l2-core/v4l2-ctrls.c:1809 std_validate_compound() warn: ignoring unreachable code. vim +1809 drivers/media/v4l2-core/v4l2-ctrls.c de8145452eebe55 Ezequiel Garcia 2019-07-11 1774 static int std_validate_compound(const struct v4l2_ctrl *ctrl, u32 idx, 0176077a813933a Hans Verkuil 2014-04-27 1775 union v4l2_ctrl_ptr ptr) 0176077a813933a Hans Verkuil 2014-04-27 1776 { 0e380411d9f043f Ezequiel Garcia 2020-11-05 1777 struct v4l2_ctrl_mpeg2_sequence *p_mpeg2_sequence; 0e380411d9f043f Ezequiel Garcia 2020-11-05 1778 struct v4l2_ctrl_mpeg2_picture *p_mpeg2_picture; c27bb30e7b6d385 Paul Kocialkowski 2018-09-13 1779 struct v4l2_ctrl_mpeg2_slice_params *p_mpeg2_slice_params; 298c62d3856111e Ezequiel Garcia 2019-07-11 1780 struct v4l2_ctrl_vp8_frame_header *p_vp8_frame_header; d9358563179a7f0 Ezequiel Garcia 2020-08-25 1781 struct v4l2_ctrl_h264_slice_params *p_h264_slice_params; f9879eb378295e8 Ezequiel Garcia 2020-08-25 1782 struct v4l2_ctrl_h264_decode_params *p_h264_dec_params; 256fa3920874b0f Paul Kocialkowski 2019-10-22 1783 struct v4l2_ctrl_hevc_sps *p_hevc_sps; 256fa3920874b0f Paul Kocialkowski 2019-10-22 1784 struct v4l2_ctrl_hevc_pps *p_hevc_pps; 256fa3920874b0f Paul Kocialkowski 2019-10-22 1785 struct v4l2_ctrl_hevc_slice_params *p_hevc_slice_params; d1dc49370f8371b Ricardo Ribalda 2019-10-07 1786 struct v4l2_area *area; de8145452eebe55 Ezequiel Garcia 2019-07-11 1787 void *p = ptr.p + idx * ctrl->elem_size; 256fa3920874b0f Paul Kocialkowski 2019-10-22 1788 unsigned int i; de8145452eebe55 Ezequiel Garcia 2019-07-11 1789 de8145452eebe55 Ezequiel Garcia 2019-07-11 1790 switch ((u32)ctrl->type) { 0e380411d9f043f Ezequiel Garcia 2020-11-05 1791 case V4L2_CTRL_TYPE_MPEG2_SEQUENCE: 0e380411d9f043f Ezequiel Garcia 2020-11-05 1792 p_mpeg2_sequence = p; de8145452eebe55 Ezequiel Garcia 2019-07-11 1793 0e380411d9f043f Ezequiel Garcia 2020-11-05 1794 switch (p_mpeg2_sequence->chroma_format) { de8145452eebe55 Ezequiel Garcia 2019-07-11 1795 case 1: /* 4:2:0 */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1796 case 2: /* 4:2:2 */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1797 case 3: /* 4:4:4 */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1798 break; de8145452eebe55 Ezequiel Garcia 2019-07-11 1799 default: de8145452eebe55 Ezequiel Garcia 2019-07-11 1800 return -EINVAL; de8145452eebe55 Ezequiel Garcia 2019-07-11 1801 } 0e380411d9f043f Ezequiel Garcia 2020-11-05 1802 zero_reserved(*p_mpeg2_sequence); 0e380411d9f043f Ezequiel Garcia 2020-11-05 1803 break; 0e380411d9f043f Ezequiel Garcia 2020-11-05 1804 0e380411d9f043f Ezequiel Garcia 2020-11-05 1805 case V4L2_CTRL_TYPE_MPEG2_PICTURE: 0e380411d9f043f Ezequiel Garcia 2020-11-05 1806 p_mpeg2_picture = p; 0e380411d9f043f Ezequiel Garcia 2020-11-05 1807 break; ^^^^^^ de8145452eebe55 Ezequiel Garcia 2019-07-11 1808 0e380411d9f043f Ezequiel Garcia 2020-11-05 @1809 switch (p_mpeg2_picture->intra_dc_precision) { ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Unreachable. de8145452eebe55 Ezequiel Garcia 2019-07-11 1810 case 0: /* 8 bits */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1811 case 1: /* 9 bits */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1812 case 2: /* 10 bits */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1813 case 3: /* 11 bits */ de8145452eebe55 Ezequiel Garcia 2019-07-11 1814 break; de8145452eebe55 Ezequiel Garcia 2019-07-11 1815 default: de8145452eebe55 Ezequiel Garcia 2019-07-11 1816 return -EINVAL; de8145452eebe55 Ezequiel Garcia 2019-07-11 1817 } 0e380411d9f043f Ezequiel Garcia 2020-11-05 1818 break; de8145452eebe55 Ezequiel Garcia 2019-07-11 1819
Attachment:
.config.gz
Description: application/gzip
