[rafael-pm:acpi-mipi-disco-img 5/7] drivers/acpi/mipi-disco-img.c:537:6: warning: format specifies type 'int' but the argument has type 'unsigned long'

[rafael-pm:acpi-mipi-disco-img 5/7] drivers/acpi/mipi-disco-img.c:537:6: warning: format specifies type 'int' but the argument has type 'unsigned long'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git acpi-mipi-disco-img
head:   54d87fab9fb060ff0489886ca0fdb101f6a3c03f
commit: a5dbdbb2bfb28643b71d23f75205845cb23af965 [5/7] ACPI: scan: Extract MIPI DisCo for Imaging data into swnodes
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231109/202311091629.3jyzqiV7-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231109/202311091629.3jyzqiV7-lkp@intel.com/reproduce)

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/202311091629.3jyzqiV7-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/acpi/mipi-disco-img.c:537:6: warning: format specifies type 'int' but the argument has type 'unsigned long' [-Wformat]
                                    ret * BITS_PER_TYPE(u8), num_lanes + 1);
                                    ^~~~~~~~~~~~~~~~~~~~~~~
   include/linux/acpi.h:1216:47: note: expanded from macro 'acpi_handle_info'
           acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
                                                 ~~~    ^~~~~~~~~~~
   1 warning generated.


vim +537 drivers/acpi/mipi-disco-img.c

   481	
   482	static void init_csi2_port(struct acpi_device *adev,
   483				   struct acpi_device_software_nodes *swnodes,
   484				   struct acpi_device_software_node_port *port,
   485				   struct fwnode_handle *port_fwnode,
   486				   unsigned int port_index)
   487	{
   488		unsigned int ep_prop_index = ACPI_DEVICE_SWNODE_EP_CLOCK_LANES;
   489		acpi_handle handle = acpi_device_handle(adev);
   490		u8 val[ACPI_DEVICE_CSI2_DATA_LANES];
   491		int num_lanes = 0;
   492		int ret;
   493	
   494		if (GRAPH_PORT_NAME(port->port_name, port->port_nr))
   495			return;
   496	
   497		swnodes->nodes[ACPI_DEVICE_SWNODE_PORT(port_index)] =
   498				SOFTWARE_NODE(port->port_name, port->port_props,
   499					      &swnodes->nodes[ACPI_DEVICE_SWNODE_ROOT]);
   500	
   501		ret = fwnode_property_read_u8(port_fwnode, "mipi-img-clock-lane", val);
   502		if (!ret)
   503			port->ep_props[NEXT_PROPERTY(ep_prop_index, EP_CLOCK_LANES)] =
   504				PROPERTY_ENTRY_U32("clock-lanes", val[0]);
   505	
   506		ret = fwnode_property_count_u8(port_fwnode, "mipi-img-data-lanes");
   507		if (ret > 0) {
   508			num_lanes = ret;
   509	
   510			if (num_lanes > ACPI_DEVICE_CSI2_DATA_LANES) {
   511				acpi_handle_info(handle, "Too many data lanes: %u\n",
   512						 num_lanes);
   513				num_lanes = ACPI_DEVICE_CSI2_DATA_LANES;
   514			}
   515	
   516			ret = fwnode_property_read_u8_array(port_fwnode,
   517							    "mipi-img-data-lanes",
   518							    val, num_lanes);
   519			if (!ret) {
   520				unsigned int i;
   521	
   522				for (i = 0; i < num_lanes; i++)
   523					port->data_lanes[i] = val[i];
   524	
   525				port->ep_props[NEXT_PROPERTY(ep_prop_index, EP_DATA_LANES)] =
   526					PROPERTY_ENTRY_U32_ARRAY_LEN("data-lanes",
   527								     port->data_lanes,
   528								     num_lanes);
   529			}
   530		}
   531	
   532		ret = fwnode_property_count_u8(port_fwnode, "mipi-img-lane-polarities");
   533		if (ret < 0) {
   534			acpi_handle_debug(handle, "Lane polarity bytes missing\n");
   535		} else if (ret * BITS_PER_TYPE(u8) < num_lanes + 1) {
   536			acpi_handle_info(handle, "Too few lane polarity bytes (%d vs. %d)\n",
 > 537					 ret * BITS_PER_TYPE(u8), num_lanes + 1);
   538		} else {
   539			unsigned long mask = 0;
   540			int byte_count = ret;
   541			unsigned int i;
   542	
   543			/*
   544			 * The total number of lanes is ACPI_DEVICE_CSI2_DATA_LANES + 1
   545			 * (data lanes + clock lane).  It is not expected to ever be
   546			 * greater than the number of bits in an unsigned long
   547			 * variable, but ensure that this is the case.
   548			 */
   549			BUILD_BUG_ON(BITS_PER_TYPE(unsigned long) <= ACPI_DEVICE_CSI2_DATA_LANES);
   550	
   551			if (byte_count > sizeof(mask)) {
   552				acpi_handle_info(handle, "Too many lane polarities: %d\n",
   553						 byte_count);
   554				byte_count = sizeof(mask);
   555			}
   556			fwnode_property_read_u8_array(port_fwnode, "mipi-img-lane-polarities",
   557						      val, byte_count);
   558	
   559			for (i = 0; i < byte_count; i++)
   560				mask |= (unsigned long)val[i] << BITS_PER_TYPE(u8) * i;
   561	
   562			for (i = 0; i <= num_lanes; i++)
   563				port->lane_polarities[i] = test_bit(i, &mask);
   564	
   565			port->ep_props[NEXT_PROPERTY(ep_prop_index, EP_LANE_POLARITIES)] =
   566					PROPERTY_ENTRY_U32_ARRAY_LEN("lane-polarities",
   567								     port->lane_polarities,
   568								     num_lanes + 1);
   569		}
   570	
   571		swnodes->nodes[ACPI_DEVICE_SWNODE_EP(port_index)] =
   572			SOFTWARE_NODE("endpoint@0", swnodes->ports[port_index].ep_props,
   573				      &swnodes->nodes[ACPI_DEVICE_SWNODE_PORT(port_index)]);
   574	
   575		if (port->crs_csi2_local)
   576			init_csi2_port_local(adev, port, port_fwnode, ep_prop_index);
   577	}
   578	

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