[agd5f:drm-next 21/49] drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c:399:5: warning: no previous prototype for 'amdgpu_vkms_output_init'

From: kernel test robot
Date: Tue Aug 03 2021 - 20:15:11 EST

tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head: 6931dae816ce11a41099b923f25c0503842cc9cd
commit: 0d040c909b80e90138bc9823a014fb1c93ebadc9 [21/49] drm/amdgpu: replace dce_virtual with amdgpu_vkms (v3)
config: sparc64-randconfig-r011-20210803 (attached as .config)
compiler: sparc64-linux-gcc (GCC) 10.3.0
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
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f drm-next
git checkout 0d040c909b80e90138bc9823a014fb1c93ebadc9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=sparc64

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

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c:399:5: warning: no previous prototype for 'amdgpu_vkms_output_init' [-Wmissing-prototypes]
399 | int amdgpu_vkms_output_init(struct drm_device *dev,
| ^~~~~~~~~~~~~~~~~~~~~~~


vim +/amdgpu_vkms_output_init +399 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c

eeba0b9046fcfa Ryan Taylor 2021-06-07 398
eeba0b9046fcfa Ryan Taylor 2021-06-07 @399 int amdgpu_vkms_output_init(struct drm_device *dev,
eeba0b9046fcfa Ryan Taylor 2021-06-07 400 struct amdgpu_vkms_output *output, int index)
eeba0b9046fcfa Ryan Taylor 2021-06-07 401 {
eeba0b9046fcfa Ryan Taylor 2021-06-07 402 struct drm_connector *connector = &output->connector;
eeba0b9046fcfa Ryan Taylor 2021-06-07 403 struct drm_encoder *encoder = &output->encoder;
eeba0b9046fcfa Ryan Taylor 2021-06-07 404 struct drm_crtc *crtc = &output->crtc;
eeba0b9046fcfa Ryan Taylor 2021-06-07 405 struct drm_plane *primary, *cursor = NULL;
eeba0b9046fcfa Ryan Taylor 2021-06-07 406 int ret;
eeba0b9046fcfa Ryan Taylor 2021-06-07 407
eeba0b9046fcfa Ryan Taylor 2021-06-07 408 primary = amdgpu_vkms_plane_init(dev, DRM_PLANE_TYPE_PRIMARY, index);
eeba0b9046fcfa Ryan Taylor 2021-06-07 409 if (IS_ERR(primary))
eeba0b9046fcfa Ryan Taylor 2021-06-07 410 return PTR_ERR(primary);
eeba0b9046fcfa Ryan Taylor 2021-06-07 411
eeba0b9046fcfa Ryan Taylor 2021-06-07 412 ret = amdgpu_vkms_crtc_init(dev, crtc, primary, cursor);
eeba0b9046fcfa Ryan Taylor 2021-06-07 413 if (ret)
eeba0b9046fcfa Ryan Taylor 2021-06-07 414 goto err_crtc;
eeba0b9046fcfa Ryan Taylor 2021-06-07 415
eeba0b9046fcfa Ryan Taylor 2021-06-07 416 ret = drm_connector_init(dev, connector, &amdgpu_vkms_connector_funcs,
eeba0b9046fcfa Ryan Taylor 2021-06-07 417 DRM_MODE_CONNECTOR_VIRTUAL);
eeba0b9046fcfa Ryan Taylor 2021-06-07 418 if (ret) {
eeba0b9046fcfa Ryan Taylor 2021-06-07 419 DRM_ERROR("Failed to init connector\n");
eeba0b9046fcfa Ryan Taylor 2021-06-07 420 goto err_connector;
eeba0b9046fcfa Ryan Taylor 2021-06-07 421 }
eeba0b9046fcfa Ryan Taylor 2021-06-07 422
eeba0b9046fcfa Ryan Taylor 2021-06-07 423 drm_connector_helper_add(connector, &amdgpu_vkms_conn_helper_funcs);
eeba0b9046fcfa Ryan Taylor 2021-06-07 424
eeba0b9046fcfa Ryan Taylor 2021-06-07 425 ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_VIRTUAL);
eeba0b9046fcfa Ryan Taylor 2021-06-07 426 if (ret) {
eeba0b9046fcfa Ryan Taylor 2021-06-07 427 DRM_ERROR("Failed to init encoder\n");
eeba0b9046fcfa Ryan Taylor 2021-06-07 428 goto err_encoder;
eeba0b9046fcfa Ryan Taylor 2021-06-07 429 }
eeba0b9046fcfa Ryan Taylor 2021-06-07 430 encoder->possible_crtcs = 1 << index;
eeba0b9046fcfa Ryan Taylor 2021-06-07 431
eeba0b9046fcfa Ryan Taylor 2021-06-07 432 ret = drm_connector_attach_encoder(connector, encoder);
eeba0b9046fcfa Ryan Taylor 2021-06-07 433 if (ret) {
eeba0b9046fcfa Ryan Taylor 2021-06-07 434 DRM_ERROR("Failed to attach connector to encoder\n");
eeba0b9046fcfa Ryan Taylor 2021-06-07 435 goto err_attach;
eeba0b9046fcfa Ryan Taylor 2021-06-07 436 }
eeba0b9046fcfa Ryan Taylor 2021-06-07 437
eeba0b9046fcfa Ryan Taylor 2021-06-07 438 drm_mode_config_reset(dev);
eeba0b9046fcfa Ryan Taylor 2021-06-07 439
eeba0b9046fcfa Ryan Taylor 2021-06-07 440 return 0;
eeba0b9046fcfa Ryan Taylor 2021-06-07 441
eeba0b9046fcfa Ryan Taylor 2021-06-07 442 err_attach:
eeba0b9046fcfa Ryan Taylor 2021-06-07 443 drm_encoder_cleanup(encoder);
eeba0b9046fcfa Ryan Taylor 2021-06-07 444
eeba0b9046fcfa Ryan Taylor 2021-06-07 445 err_encoder:
eeba0b9046fcfa Ryan Taylor 2021-06-07 446 drm_connector_cleanup(connector);
eeba0b9046fcfa Ryan Taylor 2021-06-07 447
eeba0b9046fcfa Ryan Taylor 2021-06-07 448 err_connector:
eeba0b9046fcfa Ryan Taylor 2021-06-07 449 drm_crtc_cleanup(crtc);
eeba0b9046fcfa Ryan Taylor 2021-06-07 450
eeba0b9046fcfa Ryan Taylor 2021-06-07 451 err_crtc:
eeba0b9046fcfa Ryan Taylor 2021-06-07 452 drm_plane_cleanup(primary);
eeba0b9046fcfa Ryan Taylor 2021-06-07 453
eeba0b9046fcfa Ryan Taylor 2021-06-07 454 return ret;
eeba0b9046fcfa Ryan Taylor 2021-06-07 455 }
0d040c909b80e9 Ryan Taylor 2021-06-18 456

:::::: The code at line 399 was first introduced by commit
:::::: eeba0b9046fcfa7a01ae48a1402d4a8754a5521d drm/amdgpu: create amdgpu_vkms (v4)

:::::: TO: Ryan Taylor <Ryan.Taylor@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

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

Attachment: .config.gz
Description: application/gzip