[freescale-fslc:5.10-2.1.x-imx 4752/9999] drivers/firmware/imx/s400-api.c:161:16: warning: no previous prototype for 'imx_soc_device_register'

[kernel test robot <lkp@intel.com>]

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Hi Alice,

FYI, the error/warning still remains.

tree:   https://github.com/Freescale/linux-fslc 5.10-2.1.x-imx
head:   e730e691a1edb8c38004d81b070529224e8df714
commit: 3bc399ee42d1bb2c1d442bb524711eda588f13ca [4752/9999] MLK-25423-2 firmware: imx: register i.MX8ULP SoC device
config: arm-randconfig-r006-20220106 (https://download.01.org/0day-ci/archive/20220108/202201080253.dXUrog2N-lkp(a)intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0
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://github.com/Freescale/linux-fslc/commit/3bc399ee42d1bb2c1d442bb524711eda588f13ca
        git remote add freescale-fslc https://github.com/Freescale/linux-fslc
        git fetch --no-tags freescale-fslc 5.10-2.1.x-imx
        git checkout 3bc399ee42d1bb2c1d442bb524711eda588f13ca
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash drivers/firmware/imx/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/firmware/imx/s400-api.c:161:16: warning: no previous prototype for 'imx_soc_device_register' [-Wmissing-prototypes]
     161 | struct device *imx_soc_device_register(void)
         |                ^~~~~~~~~~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for QCOM_SCM
   Depends on (ARM || ARM64) && HAVE_ARM_SMCCC
   Selected by
   - ARM_QCOM_SPM_CPUIDLE && CPU_IDLE && (ARM || ARM64) && (ARCH_QCOM || COMPILE_TEST && !ARM64 && MMU


vim +/imx_soc_device_register +161 drivers/firmware/imx/s400-api.c

   160	
 > 161	struct device *imx_soc_device_register(void)
   162	{
   163		struct soc_device_attribute *attr;
   164		struct soc_device *dev;
   165		u32 v[4];
   166		int err;
   167	
   168		s400_api_export->tx_msg.header = 0x17970206;
   169		s400_api_export->tx_msg.data[0] = 0x1;
   170		err = imx_s400_api_call(s400_api_export, v);
   171		if (err)
   172			return NULL;
   173	
   174		attr = kzalloc(sizeof(*attr), GFP_KERNEL);
   175		if (!attr)
   176			return NULL;
   177	
   178		attr->family = kasprintf(GFP_KERNEL, "Freescale i.MX");
   179		attr->revision = kasprintf(GFP_KERNEL, "unknown");
   180		attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", (u64)v[3] << 32 | v[0]);
   181		attr->soc_id = kasprintf(GFP_KERNEL, "i.MX8ULP");
   182	
   183		dev = soc_device_register(attr);
   184		if (IS_ERR(dev)) {
   185			kfree(attr->soc_id);
   186			kfree(attr->serial_number);
   187			kfree(attr->revision);
   188			kfree(attr->family);
   189			kfree(attr);
   190			return ERR_CAST(dev);
   191		}
   192	
   193		return soc_device_to_device(dev);
   194	}
   195	

---
0-DAY CI Kernel Test Service, Intel Corporation
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