tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel head: b1d08004826c99d8af2be6744a7c623a18965562 commit: 664c8d310ea30534c98916abe75c7783c997ae32 [33/60] vt_ioctl: move io ioctls config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-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 git checkout 664c8d310ea30534c98916abe75c7783c997ae32 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>, old ones prefixed by <<): drivers/tty/vt/vt_ioctl.c: In function 'vt_io_ioctl': 636 | ret = con_font_op(vc_cons[fg_console].d, &op); | ^~~ | net drivers/tty/vt/vt_ioctl.c:636:3: note: each undeclared identifier is reported only once for each function it appears in vim +636 drivers/tty/vt/vt_ioctl.c 586 587 static int vt_io_ioctl(struct vc_data *vc, unsigned int cmd, void __user *up, 588 bool perm) 589 { 590 struct console_font_op op; /* used in multiple places here */ 591 592 switch (cmd) { 593 case PIO_FONT: 594 if (!perm) 595 return -EPERM; 596 op.op = KD_FONT_OP_SET; 597 op.flags = KD_FONT_FLAG_OLD | KD_FONT_FLAG_DONT_RECALC; /* Compatibility */ 598 op.width = 8; 599 op.height = 0; 600 op.charcount = 256; 601 op.data = up; 602 return con_font_op(vc_cons[fg_console].d, &op); 603 604 case GIO_FONT: 605 op.op = KD_FONT_OP_GET; 606 op.flags = KD_FONT_FLAG_OLD; 607 op.width = 8; 608 op.height = 32; 609 op.charcount = 256; 610 op.data = up; 611 return con_font_op(vc_cons[fg_console].d, &op); 612 613 case PIO_CMAP: 614 if (!perm) 615 return -EPERM; 616 return con_set_cmap(up); 617 618 case GIO_CMAP: 619 return con_get_cmap(up); 620 621 case PIO_FONTX: 622 case GIO_FONTX: 623 return do_fontx_ioctl(cmd, up, perm, &op); 624 625 case PIO_FONTRESET: 626 if (!perm) 627 return -EPERM; 628 629 #ifdef BROKEN_GRAPHICS_PROGRAMS 630 /* With BROKEN_GRAPHICS_PROGRAMS defined, the default 631 font is not saved. */ 632 return -ENOSYS; 633 #else 634 op.op = KD_FONT_OP_SET_DEFAULT; 635 op.data = NULL; 637 if (ret) 638 return ret; 639 console_lock(); 640 con_set_default_unimap(vc_cons[fg_console].d); 641 console_unlock(); 642 break; 643 #endif 644 645 case PIO_SCRNMAP: 646 if (!perm) 647 return -EPERM; 648 return con_set_trans_old(up); 649 650 case GIO_SCRNMAP: 651 return con_get_trans_old(up); 652 653 case PIO_UNISCRNMAP: 654 if (!perm) 655 return -EPERM; 656 return con_set_trans_new(up); 657 658 case GIO_UNISCRNMAP: 659 return con_get_trans_new(up); 660 661 case PIO_UNIMAPCLR: 662 if (!perm) 663 return -EPERM; 664 con_clear_unimap(vc); 665 break; 666 667 case PIO_UNIMAP: 668 case GIO_UNIMAP: 669 return do_unimap_ioctl(cmd, up, perm, vc); 670 671 default: 672 return -ENOIOCTLCMD; 673 } 674 675 return 0; 676 } 677 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org