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Subject[agd5f:drm-next 48/65] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hubp.c:1319:6: warning: no previous prototype for 'hubp1_wait_pipe_read_start'
tree:   https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head: 426c89aa203bcec9d9cf6eea36735eafa1b1f099
commit: dd15640bcee5a5fa74fc52557dd6220f48b01116 [48/65] drm/amd/display: Wait for hubp read line for Pollock
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220316/202203162243.lsr37uYW-lkp@intel.com/config)
compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0
reproduce (this is a W=1 build):
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f drm-next
git checkout dd15640bcee5a5fa74fc52557dd6220f48b01116
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hubp.c:1319:6: warning: no previous prototype for 'hubp1_wait_pipe_read_start' [-Wmissing-prototypes]
1319 | void hubp1_wait_pipe_read_start(struct hubp *hubp)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/hubp1_wait_pipe_read_start +1319 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hubp.c

1313
1314 /**
1315 * hubp1_wait_pipe_read_start - wait for hubp ret path starting read.
1316 *
1317 * @hubp: hubp struct reference.
1318 */
> 1319 void hubp1_wait_pipe_read_start(struct hubp *hubp)
1320 {
1321 struct dcn10_hubp *hubp1 = TO_DCN10_HUBP(hubp);
1322
1323 REG_WAIT(HUBPRET_READ_LINE_STATUS,
1324 PIPE_READ_VBLANK, 0,
1325 1, 1000);
1326 }
1327

---
0-DAY CI Kernel Test Service
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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