Hi Thomas, kernel test robot noticed the following build errors: [auto build test ERROR on lee-backlight/for-backlight-next] [also build test ERROR on lee-backlight/for-backlight-fixes hid/for-next lee-leds/for-leds-next linus/master v6.8-rc4 next-20240213] [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/Thomas-Zimmermann/backlight-Match-backlight-device-against-struct-fb_info-bl_dev/20240213-002853 base: https://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight.git for-backlight-next patch link: https://lore.kernel.org/r/20240212162645.5661-5-tzimmermann%40suse.de patch subject: [PATCH 04/10] hid/hid-picolcd: Remove struct backlight_ops.check_fb config: x86_64-rhel-8.3 (https://download.01.org/0day-ci/archive/20240214/202402140514.sb1rerJx-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240214/202402140514.sb1rerJx-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202402140514.sb1rerJx-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): drivers/hid/hid-picolcd_fb.c: In function 'picolcd_init_framebuffer': >> drivers/hid/hid-picolcd_fb.c:497:13: error: 'struct fb_info' has no member named 'bl_dev' 497 | info->bl_dev = data->backlight; | ^~ vim +497 drivers/hid/hid-picolcd_fb.c 459 460 static DEVICE_ATTR(fb_update_rate, 0664, picolcd_fb_update_rate_show, 461 picolcd_fb_update_rate_store); 462 463 /* initialize Framebuffer device */ 464 int picolcd_init_framebuffer(struct picolcd_data *data) 465 { 466 struct device *dev = &data->hdev->dev; 467 struct fb_info *info = NULL; 468 struct picolcd_fb_data *fbdata = NULL; 469 int i, error = -ENOMEM; 470 u32 *palette; 471 472 /* The extra memory is: 473 * - 256*u32 for pseudo_palette 474 * - struct fb_deferred_io 475 */ 476 info = framebuffer_alloc(256 * sizeof(u32) + 477 sizeof(struct fb_deferred_io) + 478 sizeof(struct picolcd_fb_data) + 479 PICOLCDFB_SIZE, dev); 480 if (!info) 481 goto err_nomem; 482 483 info->fbdefio = info->par; 484 *info->fbdefio = picolcd_fb_defio; 485 info->par += sizeof(struct fb_deferred_io); 486 palette = info->par; 487 info->par += 256 * sizeof(u32); 488 for (i = 0; i < 256; i++) 489 palette[i] = i > 0 && i < 16 ? 0xff : 0; 490 info->pseudo_palette = palette; 491 info->fbops = &picolcdfb_ops; 492 info->var = picolcdfb_var; 493 info->fix = picolcdfb_fix; 494 info->fix.smem_len = PICOLCDFB_SIZE*8; 495 496 #ifdef CONFIG_HID_PICOLCD_BACKLIGHT > 497 info->bl_dev = data->backlight; 498 #endif 499 500 fbdata = info->par; 501 spin_lock_init(&fbdata->lock); 502 fbdata->picolcd = data; 503 fbdata->update_rate = PICOLCDFB_UPDATE_RATE_DEFAULT; 504 fbdata->bpp = picolcdfb_var.bits_per_pixel; 505 fbdata->force = 1; 506 fbdata->vbitmap = info->par + sizeof(struct picolcd_fb_data); 507 fbdata->bitmap = vmalloc(PICOLCDFB_SIZE*8); 508 if (fbdata->bitmap == NULL) { 509 dev_err(dev, "can't get a free page for framebuffer\n"); 510 goto err_nomem; 511 } 512 info->flags |= FBINFO_VIRTFB; 513 info->screen_buffer = fbdata->bitmap; 514 info->fix.smem_start = (unsigned long)fbdata->bitmap; 515 memset(fbdata->vbitmap, 0xff, PICOLCDFB_SIZE); 516 data->fb_info = info; 517 518 error = picolcd_fb_reset(data, 1); 519 if (error) { 520 dev_err(dev, "failed to configure display\n"); 521 goto err_cleanup; 522 } 523 524 error = device_create_file(dev, &dev_attr_fb_update_rate); 525 if (error) { 526 dev_err(dev, "failed to create sysfs attributes\n"); 527 goto err_cleanup; 528 } 529 530 fb_deferred_io_init(info); 531 error = register_framebuffer(info); 532 if (error) { 533 dev_err(dev, "failed to register framebuffer\n"); 534 goto err_sysfs; 535 } 536 return 0; 537 538 err_sysfs: 539 device_remove_file(dev, &dev_attr_fb_update_rate); 540 fb_deferred_io_cleanup(info); 541 err_cleanup: 542 data->fb_info = NULL; 543 544 err_nomem: 545 if (fbdata) 546 vfree(fbdata->bitmap); 547 framebuffer_release(info); 548 return error; 549 } 550 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
