Hi Thomas, Thank you for the patch! Yet something to improve:
[auto build test ERROR on sof-driver-fuweitax/master] [also build test ERROR on v4.18-rc5 next-20180718] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Thomas-Zimmermann/fbdev-core-Disable-console-lock-warnings-when-fb-lockless_register_fb-is-set/20180719-023035 base: https://github.com/fuweitax/linux master config: x86_64-randconfig-x018-201828 (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): drivers/video/fbdev/core/fbmem.c: In function 'do_register_framebuffer': >> drivers/video/fbdev/core/fbmem.c:1642:43: error: >> 'ignore_console_lock_warning' undeclared (first use in this function); did >> you mean 'saved_ignore_console_lock_warning'? bool saved_ignore_console_lock_warning = ignore_console_lock_warning; ^~~~~~~~~~~~~~~~~~~~~~~~~~~ saved_ignore_console_lock_warning drivers/video/fbdev/core/fbmem.c:1642:43: note: each undeclared identifier is reported only once for each function it appears in vim +1642 drivers/video/fbdev/core/fbmem.c 1631 1632 static bool lockless_register_fb; 1633 module_param_named_unsafe(lockless_register_fb, lockless_register_fb, bool, 0400); 1634 MODULE_PARM_DESC(lockless_register_fb, 1635 "Lockless framebuffer registration for debugging [default=off]"); 1636 1637 static int do_register_framebuffer(struct fb_info *fb_info) 1638 { 1639 int i, ret; 1640 struct fb_event event; 1641 struct fb_videomode mode; > 1642 bool saved_ignore_console_lock_warning = > ignore_console_lock_warning; 1643 1644 if (fb_check_foreignness(fb_info)) 1645 return -ENOSYS; 1646 1647 ret = do_remove_conflicting_framebuffers(fb_info->apertures, 1648 fb_info->fix.id, 1649 fb_is_primary_device(fb_info)); 1650 if (ret) 1651 return ret; 1652 1653 if (num_registered_fb == FB_MAX) 1654 return -ENXIO; 1655 1656 num_registered_fb++; 1657 for (i = 0 ; i < FB_MAX; i++) 1658 if (!registered_fb[i]) 1659 break; 1660 fb_info->node = i; 1661 atomic_set(&fb_info->count, 1); 1662 mutex_init(&fb_info->lock); 1663 mutex_init(&fb_info->mm_lock); 1664 1665 fb_info->dev = device_create(fb_class, fb_info->device, 1666 MKDEV(FB_MAJOR, i), NULL, "fb%d", i); 1667 if (IS_ERR(fb_info->dev)) { 1668 /* Not fatal */ 1669 printk(KERN_WARNING "Unable to create device for framebuffer %d; errno = %ld\n", i, PTR_ERR(fb_info->dev)); 1670 fb_info->dev = NULL; 1671 } else 1672 fb_init_device(fb_info); 1673 1674 if (fb_info->pixmap.addr == NULL) { 1675 fb_info->pixmap.addr = kmalloc(FBPIXMAPSIZE, GFP_KERNEL); 1676 if (fb_info->pixmap.addr) { 1677 fb_info->pixmap.size = FBPIXMAPSIZE; 1678 fb_info->pixmap.buf_align = 1; 1679 fb_info->pixmap.scan_align = 1; 1680 fb_info->pixmap.access_align = 32; 1681 fb_info->pixmap.flags = FB_PIXMAP_DEFAULT; 1682 } 1683 } 1684 fb_info->pixmap.offset = 0; 1685 1686 if (!fb_info->pixmap.blit_x) 1687 fb_info->pixmap.blit_x = ~(u32)0; 1688 1689 if (!fb_info->pixmap.blit_y) 1690 fb_info->pixmap.blit_y = ~(u32)0; 1691 1692 if (!fb_info->modelist.prev || !fb_info->modelist.next) 1693 INIT_LIST_HEAD(&fb_info->modelist); 1694 1695 if (fb_info->skip_vt_switch) 1696 pm_vt_switch_required(fb_info->dev, false); 1697 else 1698 pm_vt_switch_required(fb_info->dev, true); 1699 1700 fb_var_to_videomode(&mode, &fb_info->var); 1701 fb_add_videomode(&mode, &fb_info->modelist); 1702 registered_fb[i] = fb_info; 1703 1704 event.info = fb_info; 1705 if (!lockless_register_fb) 1706 console_lock(); 1707 else 1708 ignore_console_lock_warning = true; 1709 if (!lock_fb_info(fb_info)) { 1710 if (!lockless_register_fb) 1711 console_unlock(); 1712 return -ENODEV; 1713 } 1714 1715 fb_notifier_call_chain(FB_EVENT_FB_REGISTERED, &event); 1716 unlock_fb_info(fb_info); 1717 if (!lockless_register_fb) 1718 console_unlock(); 1719 else 1720 ignore_console_lock_warning = 1721 saved_ignore_console_lock_warning; 1722 return 0; 1723 } 1724 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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