tree: git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.4.y head: e6f6398802d41ad655b6a4108be588d533e3c1c4 commit: c1a632fc83e364aa8fd82e949b47b36db64523c5 [2283/9274] remoteproc: add infrastructure support to allow pre-loaded remoteprocs compiler: sh4-linux-gcc (GCC) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; cppcheck warnings: (new ones prefixed by >>) ret = rproc_fw_boot(rproc, firmware_p); ^ drivers/remoteproc/remoteproc_core.c:553:38: warning: Uninitialized variable: rvdev [uninitvar] if (rsc->num_of_vrings > ARRAY_SIZE(rvdev->vring)) { ^ loaded_table = rproc_find_loaded_rsc_table(rproc, fw); ^ drivers/remoteproc/remoteproc_core.c:1431:37: warning: Uninitialized variable: fw [uninitvar] ret = rproc_fw_sanity_check(rproc, fw); ^ drivers/remoteproc/remoteproc_core.c:1461:47: warning: Uninitialized variable: fw [uninitvar] rproc->bootaddr = rproc_get_boot_addr(rproc, fw); ^ drivers/remoteproc/remoteproc_core.c:1464:30: warning: Uninitialized variable: fw [uninitvar] ret = rproc_parse_fw(rproc, fw); ^ drivers/remoteproc/remoteproc_core.c:1489:27: warning: Uninitialized variable: fw [uninitvar] ret = rproc_start(rproc, fw); ^ vim +1879 drivers/remoteproc/remoteproc_core.c 87775487f5e847 Suman Anna 2018-01-15 1825 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1826 /** 1b0ef9068f053d Suman Anna 2017-07-20 1827 * rproc_boot() - boot a remote processor 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1828 * @rproc: handle of a remote processor 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1829 * 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1830 * Boot a remote processor (i.e. load its firmware, power it on, ...). 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1831 * 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1832 * If the remote processor is already powered on, this function immediately 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1833 * returns (successfully). 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1834 * 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1835 * Returns 0 on success, and an appropriate error value otherwise. 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1836 */ 1b0ef9068f053d Suman Anna 2017-07-20 1837 int rproc_boot(struct rproc *rproc) 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1838 { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1839 const struct firmware *firmware_p; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1840 struct device *dev; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1841 int ret; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1842 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1843 if (!rproc) { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1844 pr_err("invalid rproc handle\n"); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1845 return -EINVAL; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1846 } 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1847 b5ab5e24e960b9 Ohad Ben-Cohen 2012-05-30 1848 dev = &rproc->dev; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1849 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1850 ret = mutex_lock_interruptible(&rproc->lock); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1851 if (ret) { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1852 dev_err(dev, "can't lock rproc %s: %d\n", rproc->name, ret); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1853 return ret; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1854 } 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1855 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1856 if (rproc->state == RPROC_DELETED) { 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1857 ret = -ENODEV; 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1858 dev_err(dev, "can't boot deleted rproc %s\n", rproc->name); 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1859 goto unlock_mutex; 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1860 } 2099c77d4af7d1 Sarangdhar Joshi 2017-01-23 1861 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1862 /* skip the boot process if rproc is already powered up */ 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1863 if (atomic_inc_return(&rproc->power) > 1) { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1864 ret = 0; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1865 goto unlock_mutex; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1866 } 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1867 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1868 dev_info(dev, "powering up %s\n", rproc->name); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1869 c1a632fc83e364 Suman Anna 2018-10-08 1870 if (!rproc->skip_firmware_request) { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1871 /* load firmware */ 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1872 ret = request_firmware(&firmware_p, rproc->firmware, dev); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1873 if (ret < 0) { 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1874 dev_err(dev, "request_firmware failed: %d\n", ret); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1875 goto downref_rproc; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1876 } c1a632fc83e364 Suman Anna 2018-10-08 1877 } 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1878 400e64df6b237e Ohad Ben-Cohen 2011-10-20 @1879 ret = rproc_fw_boot(rproc, firmware_p); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1880 c1a632fc83e364 Suman Anna 2018-10-08 1881 if (!rproc->skip_firmware_request) 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1882 release_firmware(firmware_p); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1883 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1884 downref_rproc: fbb6aacb078285 Bjorn Andersson 2016-10-02 1885 if (ret) 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1886 atomic_dec(&rproc->power); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1887 unlock_mutex: 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1888 mutex_unlock(&rproc->lock); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1889 return ret; 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1890 } 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1891 EXPORT_SYMBOL(rproc_boot); 400e64df6b237e Ohad Ben-Cohen 2011-10-20 1892 :::::: The code at line 1879 was first introduced by commit :::::: 400e64df6b237eb36b127efd72000a2794f9eec1 remoteproc: add framework for controlling remote processors :::::: TO: Ohad Ben-Cohen <ohad(a)wizery.com&gt; :::::: CC: Ohad Ben-Cohen <ohad(a)wizery.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org