Hi Li, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 19640fb08a2ccfb131121859517dfdbc6a04ccb6 commit: 792b82446538ed840a6e23b89673ce21564702bd [1466/1466] Fix gic support for Phytium S2500 config: arm64-randconfig-002-20241114 (https://download.01.org/0day-ci/archive/20241114/202411140250.sY9gSIIA-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241114/202411140250.sY9gSIIA-lkp@i...) 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/202411140250.sY9gSIIA-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/phytium/phytium_platform.c:19:5: warning: no previous prototype for 'phytium_platform_carveout_mem_init' [-Wmissing-prototypes] 19 | int phytium_platform_carveout_mem_init(struct platform_device *pdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_platform.c:60:6: warning: no previous prototype for 'phytium_platform_carveout_mem_fini' [-Wmissing-prototypes] 60 | void phytium_platform_carveout_mem_fini(struct platform_device *pdev, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

...

drivers/gpu/drm/phytium/phytium_platform.c:253:12: warning: 'phytium_platform_pm_resume' defined but not used [-Wunused-function] 253 | static int phytium_platform_pm_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_platform.c:245:12: warning: 'phytium_platform_pm_suspend' defined but not used [-Wunused-function] 245 | static int phytium_platform_pm_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ -- drivers/gpu/drm/phytium/phytium_pci.c:23:6: warning: no previous prototype for 'phytium_pci_vram_hw_init' [-Wmissing-prototypes] 23 | void phytium_pci_vram_hw_init(struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c:30:5: warning: no previous prototype for 'phytium_pci_vram_init' [-Wmissing-prototypes] 30 | int phytium_pci_vram_init(struct pci_dev *pdev, struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c:68:6: warning: no previous prototype for 'phytium_pci_vram_fini' [-Wmissing-prototypes] 68 | void phytium_pci_vram_fini(struct pci_dev *pdev, struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c:89:5: warning: no previous prototype for 'phytium_pci_dma_init' [-Wmissing-prototypes] 89 | int phytium_pci_dma_init(struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c:137:6: warning: no previous prototype for 'phytium_pci_dma_fini' [-Wmissing-prototypes] 137 | void phytium_pci_dma_fini(struct phytium_display_private *priv) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c: In function 'phytium_pci_probe': drivers/gpu/drm/phytium/phytium_pci.c:236:23: error: implicit declaration of function 'pci_enable_msi'; did you mean 'pci_enable_sriov'? [-Wimplicit-function-declaration] 236 | ret = pci_enable_msi(pdev); | ^~~~~~~~~~~~~~ | pci_enable_sriov drivers/gpu/drm/phytium/phytium_pci.c:271:17: error: implicit declaration of function 'pci_disable_msi'; did you mean 'pci_disable_sriov'? [-Wimplicit-function-declaration] 271 | pci_disable_msi(pdev); | ^~~~~~~~~~~~~~~ | pci_disable_sriov drivers/gpu/drm/phytium/phytium_pci.c: At top level: drivers/gpu/drm/phytium/phytium_pci.c:328:12: warning: 'phytium_pci_pm_resume' defined but not used [-Wunused-function] 328 | static int phytium_pci_pm_resume(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/phytium/phytium_pci.c:305:12: warning: 'phytium_pci_pm_suspend' defined but not used [-Wunused-function] 305 | static int phytium_pci_pm_suspend(struct device *dev) | ^~~~~~~~~~~~~~~~~~~~~~

vim +/phytium_platform_pm_resume +253 drivers/gpu/drm/phytium/phytium_platform.c b80df10f845813 lishuo 2024-01-31 244 b80df10f845813 lishuo 2024-01-31 @245 static int phytium_platform_pm_suspend(struct device *dev) b80df10f845813 lishuo 2024-01-31 246 { b80df10f845813 lishuo 2024-01-31 247 struct drm_device *drm_dev = dev_get_drvdata(dev); b80df10f845813 lishuo 2024-01-31 248 struct phytium_display_private *priv = drm_dev->dev_private; b80df10f845813 lishuo 2024-01-31 249 b80df10f845813 lishuo 2024-01-31 250 return priv->display_pm_suspend(drm_dev); b80df10f845813 lishuo 2024-01-31 251 } b80df10f845813 lishuo 2024-01-31 252 b80df10f845813 lishuo 2024-01-31 @253 static int phytium_platform_pm_resume(struct device *dev) b80df10f845813 lishuo 2024-01-31 254 { b80df10f845813 lishuo 2024-01-31 255 struct drm_device *drm_dev = dev_get_drvdata(dev); b80df10f845813 lishuo 2024-01-31 256 struct phytium_display_private *priv = drm_dev->dev_private; b80df10f845813 lishuo 2024-01-31 257 b80df10f845813 lishuo 2024-01-31 258 return priv->display_pm_resume(drm_dev); b80df10f845813 lishuo 2024-01-31 259 } b80df10f845813 lishuo 2024-01-31 260 :::::: The code at line 253 was first introduced by commit :::::: b80df10f845813bb4fc2002b5386ecdfa8be5f6c DRM: Phytium display DRM driver :::::: TO: lishuo <lishuo@phytium.com.cn> :::::: CC: lishuo <lishuo@phytium.com.cn> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki