[PATCH net-next 10/13] net: airoha: Introduce PPE initialization via NPU

[kernel test robot]

Hi Lorenzo,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 135c3c86a7cef4ba3d368da15b16c275b74582d3]

url:    https://github.com/intel-lab-lkp/linux/commits/Lorenzo-Bianconi/net-airoha-Move-airoha_eth-driver-in-a-dedicated-folder/20250206-022555
base:   135c3c86a7cef4ba3d368da15b16c275b74582d3
patch link:    https://lore.kernel.org/r/20250205-airoha-en7581-flowtable-offload-v1-10-d362cfa97b01%40kernel.org
patch subject: [PATCH net-next 10/13] net: airoha: Introduce PPE initialization via NPU
config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20250207/202502070610.tbfoIwkS-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250207/202502070610.tbfoIwkS-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202502070610.tbfoIwkS-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/device.h:15,
                    from include/linux/devcoredump.h:8,
                    from drivers/net/ethernet/airoha/airoha_npu.c:7:
   drivers/net/ethernet/airoha/airoha_npu.c: In function 'airoha_npu_run_firmware':
>> drivers/net/ethernet/airoha/airoha_npu.c:200:30: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
     200 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                              ^~~
   include/linux/dev_printk.h:154:56: note: in expansion of macro 'dev_fmt'
     154 |         dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                        ^~~~~~~
   drivers/net/ethernet/airoha/airoha_npu.c:200:17: note: in expansion of macro 'dev_err'
     200 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                 ^~~~~~~
   drivers/net/ethernet/airoha/airoha_npu.c:200:60: note: format string is defined here
     200 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                                                          ~~^
         |                                                            |
         |                                                            long int
         |                                                          %d
   drivers/net/ethernet/airoha/airoha_npu.c:220:30: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Wformat=]
     220 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/dev_printk.h:110:30: note: in definition of macro 'dev_printk_index_wrap'
     110 |                 _p_func(dev, fmt, ##__VA_ARGS__);                       \
         |                              ^~~
   include/linux/dev_printk.h:154:56: note: in expansion of macro 'dev_fmt'
     154 |         dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
         |                                                        ^~~~~~~
   drivers/net/ethernet/airoha/airoha_npu.c:220:17: note: in expansion of macro 'dev_err'
     220 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                 ^~~~~~~
   drivers/net/ethernet/airoha/airoha_npu.c:220:60: note: format string is defined here
     220 |                 dev_err(dev, "%s: fw size too overlimit (%ld)\n",
         |                                                          ~~^
         |                                                            |
         |                                                            long int
         |                                                          %d


vim +200 drivers/net/ethernet/airoha/airoha_npu.c

   187	
   188	static int airoha_npu_run_firmware(struct airoha_npu *npu, struct reserved_mem *rmem)
   189	{
   190		struct device *dev = &npu->pdev->dev;
   191		const struct firmware *fw;
   192		void __iomem *addr;
   193		int ret;
   194	
   195		ret = request_firmware(&fw, NPU_EN7581_FIRMWARE_RV32, dev);
   196		if (ret)
   197			return ret;
   198	
   199		if (fw->size > NPU_EN7581_FIRMWARE_RV32_MAX_SIZE) {
 > 200			dev_err(dev, "%s: fw size too overlimit (%ld)\n",
   201				NPU_EN7581_FIRMWARE_RV32, fw->size);
   202			ret = -E2BIG;
   203			goto out;
   204		}
   205	
   206		addr = devm_ioremap(dev, rmem->base, rmem->size);
   207		if (!addr) {
   208			ret = -ENOMEM;
   209			goto out;
   210		}
   211	
   212		memcpy_toio(addr, fw->data, fw->size);
   213		release_firmware(fw);
   214	
   215		ret = request_firmware(&fw, NPU_EN7581_FIRMWARE_DATA, dev);
   216		if (ret)
   217			return ret;
   218	
   219		if (fw->size > NPU_EN7581_FIRMWARE_DATA_MAX_SIZE) {
   220			dev_err(dev, "%s: fw size too overlimit (%ld)\n",
   221				NPU_EN7581_FIRMWARE_DATA, fw->size);
   222			ret = -E2BIG;
   223			goto out;
   224		}
   225	
   226		memcpy_toio(npu->base + REG_NPU_LOCAL_SRAM, fw->data, fw->size);
   227	out:
   228		release_firmware(fw);
   229	
   230		return ret;
   231	}
   232	

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https://github.com/intel/lkp-tests/wiki