Hi Manivannan, I love your patch! Perhaps something to improve: [auto build test WARNING on pci/next] [also build test WARNING on robh/for-next linus/master v5.13-rc4 next-20210602] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Manivannan-Sadhasivam/Add-Qualcomm-PCIe-Endpoint-driver-support/20210602-200949 base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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/0day-ci/linux/commit/c61e07facdc420a695654c60f2f32437c93427e5 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Manivannan-Sadhasivam/Add-Qualcomm-PCIe-Endpoint-driver-support/20210602-200949 git checkout c61e07facdc420a695654c60f2f32437c93427e5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/pci/controller/dwc/pcie-qcom-ep.c: In function 'qcom_pcie_ep_configure_tcsr': >> drivers/pci/controller/dwc/pcie-qcom-ep.c:177:6: warning: variable 'reg' set but not used [-Wunused-but-set-variable] 177 | u32 reg; | ^~~ drivers/pci/controller/dwc/pcie-qcom-ep.c: In function 'qcom_pcie_establish_link': drivers/pci/controller/dwc/pcie-qcom-ep.c:357:21: warning: unused variable 'epf_bar' [-Wunused-variable] 357 | struct pci_epf_bar epf_bar; | ^~~~~~~ drivers/pci/controller/dwc/pcie-qcom-ep.c:356:18: warning: unused variable 'epc' [-Wunused-variable] 356 | struct pci_epc *epc = pci->ep.epc; | ^~~ vim +/reg +177 drivers/pci/controller/dwc/pcie-qcom-ep.c 169 170 /* 171 * Delatch PERST_EN and PERST_SEPARATION_ENABLE with TCSR to avoid 172 * device reset during host reboot and hibernation. The driver is 173 * expected to handle this situation. 174 */ 175 static void qcom_pcie_ep_configure_tcsr(struct qcom_pcie_ep *pcie_ep) 176 { > 177 u32 reg; 178 179 reg = readl(pcie_ep->tcsr + TCSR_PCIE_PERST_EN); 180 writel_relaxed(0x0, pcie_ep->tcsr + TCSR_PCIE_PERST_EN); 181 182 reg = readl(pcie_ep->tcsr + TCSR_PERST_SEPARATION_ENABLE); 183 writel_relaxed(0x0, pcie_ep->tcsr + TCSR_PERST_SEPARATION_ENABLE); 184 } 185 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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