[kbuild-all] [chrome-os:chromeos-5.4 80/110] drivers/hid/i2c-hid/i2c-hid-acpi.c:97:5: warning: no previous prototype for 'i2c_hid_acpi_probe'

tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4 head: 675b5726e8452a03e2cf91f66e813716edf4c2aa commit: 09e9a6674e2cfbf02d7198567d72cb74e917ef0a [80/110] BACKPORT: FROMLIST: HID: i2c-hid: Reorganize so ACPI and OF are subclasses config: x86_64-randconfig-r034-20201109 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.4 git checkout 09e9a6674e2cfbf02d7198567d72cb74e917ef0a # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 97 | int i2c_hid_acpi_probe(struct i2c_client *client, | ^~~~~~~~~~~~~~~~~~ vim +/i2c_hid_acpi_probe +97 drivers/hid/i2c-hid/i2c-hid-acpi.c 96 98 const struct i2c_device_id *dev_id) 99 { 100 struct device *dev = &client->dev; 101 struct i2c_hid_acpi *ihid_acpi; 102 u16 hid_descriptor_address; 103 int ret; 104 105 ihid_acpi = devm_kzalloc(&client->dev, sizeof(*ihid_acpi), GFP_KERNEL); 106 if (!ihid_acpi) 107 return -ENOMEM; 108 109 ihid_acpi->subclass.power_up_device = i2c_hid_acpi_power_up_device; 110 111 ret = i2c_hid_acpi_get_descriptor(client); 112 if (ret < 0) 113 return ret; 114 hid_descriptor_address = ret; 115 116 if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) { 117 device_set_wakeup_capable(dev, true); 118 device_set_wakeup_enable(dev, false); 119 } 120 121 return i2c_hid_core_probe(client, &ihid_acpi->subclass, 122 hid_descriptor_address); 123 } 124 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org