[linux-next:master 11329/11721] drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:764:6: warning: format specifies type 'long' but the argument has type 'unsigned int'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   14c6345e6e6ca0570f3897214f24748ef6009761
commit: e27c41d5b0681c597ac1894f4e02cf626e062250 [11329/11721] drm/amd/display: Support for DMUB HPD interrupt handling
config: i386-randconfig-r021-20210904 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6fe2beba7d2a41964af658c8c59dd172683ef739)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e27c41d5b0681c597ac1894f4e02cf626e062250
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout e27c41d5b0681c597ac1894f4e02cf626e062250
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 

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

All warnings (new ones prefixed by >>):

   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:632:6: warning: no previous prototype for function 'dmub_aux_setconfig_callback' [-Wmissing-prototypes]
   void dmub_aux_setconfig_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
        ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:632:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void dmub_aux_setconfig_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
   ^
   static 
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:648:6: warning: no previous prototype for function 'dmub_hpd_callback' [-Wmissing-prototypes]
   void dmub_hpd_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
        ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:648:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void dmub_hpd_callback(struct amdgpu_device *adev, struct dmub_notification *notify)
   ^
   static 
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:702:6: warning: no previous prototype for function 'register_dmub_notify_callback' [-Wmissing-prototypes]
   bool register_dmub_notify_callback(struct amdgpu_device *adev, enum dmub_notification_type type,
        ^
   drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:702:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool register_dmub_notify_callback(struct amdgpu_device *adev, enum dmub_notification_type type,
   ^
   static 

quoted

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:764:6: warning: format specifies type 'long' but the argument has type 'unsigned int' [-Wformat]

                                           ARRAY_SIZE(dm->dmub_thread_offload));
                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/drm/drm_print.h:498:19: note: expanded from macro 'DRM_ERROR'
           __drm_err(fmt, ##__VA_ARGS__)
                     ~~~    ^~~~~~~~~~~
   include/linux/kernel.h:44:25: note: expanded from macro 'ARRAY_SIZE'
   #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   4 warnings generated.


vim +764 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c

   732	
   733	#define DMUB_TRACE_MAX_READ 64
   734	/**
   735	 * dm_dmub_outbox1_low_irq() - Handles Outbox interrupt
   736	 * @interrupt_params: used for determining the Outbox instance
   737	 *
   738	 * Handles the Outbox Interrupt
   739	 * event handler.
   740	 */
   741	static void dm_dmub_outbox1_low_irq(void *interrupt_params)
   742	{
   743		struct dmub_notification notify;
   744		struct common_irq_params *irq_params = interrupt_params;
   745		struct amdgpu_device *adev = irq_params->adev;
   746		struct amdgpu_display_manager *dm = &adev->dm;
   747		struct dmcub_trace_buf_entry entry = { 0 };
   748		uint32_t count = 0;
   749		struct dmub_hpd_work *dmub_hpd_wrk;
   750	
   751		if (dc_enable_dmub_notifications(adev->dm.dc)) {
   752			dmub_hpd_wrk = kzalloc(sizeof(*dmub_hpd_wrk), GFP_ATOMIC);
   753			if (!dmub_hpd_wrk) {
   754				DRM_ERROR("Failed to allocate dmub_hpd_wrk");
   755				return;
   756			}
   757			INIT_WORK(&dmub_hpd_wrk->handle_hpd_work, dm_handle_hpd_work);
   758	
   759			if (irq_params->irq_src == DC_IRQ_SOURCE_DMCUB_OUTBOX) {
   760				do {
   761					dc_stat_get_dmub_notification(adev->dm.dc, &notify);
   762					if (notify.type > ARRAY_SIZE(dm->dmub_thread_offload)) {
   763						DRM_ERROR("DM: notify type %d larger than the array size %ld !", notify.type,
 > 764						ARRAY_SIZE(dm->dmub_thread_offload));
   765						continue;
   766					}
   767					if (dm->dmub_thread_offload[notify.type] == true) {
   768						dmub_hpd_wrk->dmub_notify = &notify;
   769						dmub_hpd_wrk->adev = adev;
   770						queue_work(adev->dm.delayed_hpd_wq, &dmub_hpd_wrk->handle_hpd_work);
   771					} else {
   772						dm->dmub_callback[notify.type](adev, &notify);
   773					}
   774	
   775				} while (notify.pending_notification);
   776	
   777			} else {
   778				DRM_ERROR("DM: Failed to receive correct outbox IRQ !");
   779			}
   780		}
   781	
   782	
   783		do {
   784			if (dc_dmub_srv_get_dmub_outbox0_msg(dm->dc, &entry)) {
   785				trace_amdgpu_dmub_trace_high_irq(entry.trace_code, entry.tick_count,
   786								entry.param0, entry.param1);
   787	
   788				DRM_DEBUG_DRIVER("trace_code:%u, tick_count:%u, param0:%u, param1:%u\n",
   789					 entry.trace_code, entry.tick_count, entry.param0, entry.param1);
   790			} else
   791				break;
   792	
   793			count++;
   794	
   795		} while (count <= DMUB_TRACE_MAX_READ);
   796	
   797		ASSERT(count <= DMUB_TRACE_MAX_READ);
   798	}
   799	#endif
   800	

---
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