tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 2f9cb3d3bd73fc2225d66aa8fcffb632ed3eb235 commit: ff32fac00d97661c715ee47bbfd867cae1f3aaf8 [3951/5720] NTB: EPF: support NTB transfer between PCI RC and EP connection config: ia64-randconfig-r006-20220625 compiler: ia64-linux-gcc (GCC) 11.3.0 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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=ff32fac00d97661c715ee47bbfd867cae1f3aaf8 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout ff32fac00d97661c715ee47bbfd867cae1f3aaf8 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=ia64 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> All warnings (new ones prefixed by >>): In file included from arch/ia64/include/asm/pgtable.h:153, from include/linux/pgtable.h:6, from arch/ia64/include/asm/uaccess.h:40, from include/linux/uaccess.h:11, from arch/ia64/include/asm/sections.h:11, from include/linux/interrupt.h:21, from include/linux/pci.h:38, from include/linux/pci-epf.h:15, from include/linux/pci-epc.h:12, from drivers/pci/endpoint/functions/pci-epf-vntb.c:44: arch/ia64/include/asm/mmu_context.h: In function 'reload_context': arch/ia64/include/asm/mmu_context.h:127:48: warning: variable 'old_rr4' set but not used [-Wunused-but-set-variable] 127 | unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4; | ^~~~~~~ drivers/pci/endpoint/functions/pci-epf-vntb.c: At top level: >> drivers/pci/endpoint/functions/pci-epf-vntb.c:975:5: warning: no previous prototype for 'pci_read' [-Wmissing-prototypes] 975 | int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) | ^~~~~~~~ >> drivers/pci/endpoint/functions/pci-epf-vntb.c:984:5: warning: no previous prototype for 'pci_write' [-Wmissing-prototypes] 984 | int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) | ^~~~~~~~~ {standard input}: Assembler messages: {standard input}:8744: Error: Register number out of range 0..3 {standard input}:8745: Error: Register number out of range 0..3 {standard input}:8745: Warning: Use of 'mov' violates WAW dependency 'GR%, % in 1 - 127' (impliedf), specific resource number is 47 {standard input}:8745: Warning: Only the first path encountering the conflict is reported {standard input}:8744: Warning: This is the location of the conflicting usage {standard input}:8746: Error: Register number out of range 0..3 {standard input}:8746: Warning: Use of 'mov' violates WAW dependency 'GR%, % in 1 - 127' (impliedf), specific resource number is 47 {standard input}:8746: Warning: Only the first path encountering the conflict is reported {standard input}:8744: Warning: This is the location of the conflicting usage {standard input}:8746: Warning: Use of 'mov' violates WAW dependency 'GR%, % in 1 - 127' (impliedf), specific resource number is 47 {standard input}:8746: Warning: Only the first path encountering the conflict is reported {standard input}:8745: Warning: This is the location of the conflicting usage {standard input}:8750: Error: Register number out of range 0..3 vim +/pci_read +975 drivers/pci/endpoint/functions/pci-epf-vntb.c 974 > 975 int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val) 976 { 977 if (devfn == 0) { 978 memcpy(val, ((uint8_t *)pci_space) + where, size); 979 return 0; 980 } 981 return -1; 982 } 983 > 984 int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val) 985 { 986 return 0; 987 } 988 -- 0-DAY CI Kernel Test Service https://01.org/lkp
