Hi Manivannan, kernel test robot noticed the following build warnings: [auto build test WARNING on pci/next] [also build test WARNING on pci/for-linus jonmason-ntb/ntb-next linus/master v6.4-rc4 next-20230601] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Manivannan-Sadhasivam/MAINTAINERS-Add-entry-for-MHI-networking-drivers-under-MHI-bus/20230601-232444 base: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git next patch link: https://lore.kernel.org/r/20230601145718.12204-10-manivannan.sadhasivam%40linaro.org patch subject: [PATCH v5 9/9] PCI: endpoint: Add PCI Endpoint function driver for MHI bus config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230602/202306021200.ndNlhtdv-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/b6931b37d070b86af64eeb92c1d52b4a0c6d61e8 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Manivannan-Sadhasivam/MAINTAINERS-Add-entry-for-MHI-networking-drivers-under-MHI-bus/20230601-232444 git checkout b6931b37d070b86af64eeb92c1d52b4a0c6d61e8 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/pci/endpoint/functions/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306021200.ndNlhtdv-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/pci/endpoint/functions/pci-epf-mhi.c: In function 'pci_epf_mhi_link_down': >> drivers/pci/endpoint/functions/pci-epf-mhi.c:307:43: warning: unused variable 'info' [-Wunused-variable] 307 | const struct pci_epf_mhi_ep_info *info = epf_mhi->info; | ^~~~ drivers/pci/endpoint/functions/pci-epf-mhi.c: In function 'pci_epf_mhi_bme': drivers/pci/endpoint/functions/pci-epf-mhi.c:321:43: warning: unused variable 'info' [-Wunused-variable] 321 | const struct pci_epf_mhi_ep_info *info = epf_mhi->info; | ^~~~ vim +/info +307 drivers/pci/endpoint/functions/pci-epf-mhi.c 303 304 static int pci_epf_mhi_link_down(struct pci_epf *epf) 305 { 306 struct pci_epf_mhi *epf_mhi = epf_get_drvdata(epf); > 307 const struct pci_epf_mhi_ep_info *info = epf_mhi->info; 308 struct mhi_ep_cntrl *mhi_cntrl = &epf_mhi->mhi_cntrl; 309 310 if (mhi_cntrl->mhi_dev) { 311 mhi_ep_power_down(mhi_cntrl); 312 mhi_ep_unregister_controller(mhi_cntrl); 313 } 314 315 return 0; 316 } 317 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki