drivers/phy/motorola/phy-mapphone-mdm6600.c:188:16: warning: is used uninitialized in this function

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

[-- Attachment #1: Type: text/plain, Size: 2201 bytes --]

Hi Tony,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   88a867653065dc14b0fdeeb626efb8d7ebe39be5
commit: 5d1ebbda0318b1ba55eaa1fae3fd867af17b0774 phy: mapphone-mdm6600: Add USB PHY driver for MDM6600 on Droid 4
date:   3 months ago
config: x86_64-randconfig-s5-05311957 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
reproduce:
        git checkout 5d1ebbda0318b1ba55eaa1fae3fd867af17b0774
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   #'target_mem_ref' not supported by expression#'drivers/phy/motorola/phy-mapphone-mdm6600.c: In function 'phy_mdm6600_status':
>> drivers/phy/motorola/phy-mapphone-mdm6600.c:188:16: warning:  is used uninitialized in this function [-Wuninitialized]
      val |= values[i] << i;
             ~~~~~~^~~

vim +188 drivers/phy/motorola/phy-mapphone-mdm6600.c

   166	
   167	/**
   168	 * phy_mdm6600_status() - read mdm6600 status lines
   169	 * @ddata: device driver data
   170	 */
   171	static void phy_mdm6600_status(struct work_struct *work)
   172	{
   173		struct phy_mdm6600 *ddata;
   174		struct device *dev;
   175		int values[PHY_MDM6600_NR_STATUS_LINES];
   176		int error, i, val = 0;
   177	
   178		ddata = container_of(work, struct phy_mdm6600, status_work.work);
   179		dev = ddata->dev;
   180	
   181		error = gpiod_get_array_value_cansleep(PHY_MDM6600_NR_CMD_LINES,
   182						       ddata->status_gpios->desc,
   183						       values);
   184		if (error)
   185			return;
   186	
   187		for (i = 0; i < PHY_MDM6600_NR_CMD_LINES; i++) {
 > 188			val |= values[i] << i;
   189			dev_dbg(ddata->dev, "XXX %s: i: %i values[i]: %i val: %i\n",
   190				__func__, i, values[i], val);
   191		}
   192		ddata->status = val;
   193	
   194		dev_info(dev, "modem status: %i %s\n",
   195			 ddata->status,
   196			 phy_mdm6600_status_name[ddata->status & 7]);
   197		complete(&ddata->ack);
   198	}
   199	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 28617 bytes --]