Hi Hongchen, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 5a1d9701155c6908c76c68951170f10279685143 commit: b9d65551a3adfa87a7c5d33391187ee60a1b501d [19206/30000] drm: add inspur drm driver support config: arm64-randconfig-002-20240914 (https://download.01.org/0day-ci/archive/20240914/202409140804.IiV0APec-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240914/202409140804.IiV0APec-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/202409140804.IiV0APec-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

drivers/gpu/drm/inspur/inspur_drm_drv.c:30:13: warning: no previous prototype for 'inspur_drm_interrupt' [-Wmissing-prototypes] 30 | irqreturn_t inspur_drm_interrupt(int irq, void *arg) | ^~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/inspur/inspur_drm_drv.c: In function 'inspur_pci_probe': drivers/gpu/drm/inspur/inspur_drm_drv.c:379:36: warning: unused variable 'priv' [-Wunused-variable] 379 | struct inspur_drm_private *priv; | ^~~~

vim +/inspur_drm_interrupt +30 drivers/gpu/drm/inspur/inspur_drm_drv.c 27 28 29 DEFINE_DRM_GEM_FOPS(inspur_fops);

30 irqreturn_t inspur_drm_interrupt(int irq, void *arg) 31 { 32 struct drm_device *dev = (struct drm_device *)arg; 33 struct inspur_drm_private *priv = 34 (struct inspur_drm_private *)dev->dev_private; 35 u32 status; 36 37 status = readl(priv->mmio + INSPUR_RAW_INTERRUPT); 38 39 if (status & INSPUR_RAW_INTERRUPT_VBLANK(1)) { 40 writel(INSPUR_RAW_INTERRUPT_VBLANK(1), 41 priv->mmio + INSPUR_RAW_INTERRUPT); 42 drm_handle_vblank(dev, 0); 43 } 44 45 return IRQ_HANDLED; 46 } 47

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