From: kernel test robot <lkp@intel.com>
To: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>,
"Helge Deller" <deller@gmx.de>
Cc: oe-kbuild-all@lists.linux.dev, Chen Ni <nichen@iscas.ac.cn>,
linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 4/4] fbdev: au1100fb: Make driver compilable on non-mips platforms
Date: Sun, 8 Feb 2026 19:12:06 +0800 [thread overview]
Message-ID: <202602081811.HrSb1oUf-lkp@intel.com> (raw)
In-Reply-To: <b894247689a7a920d9caa465dbcb840bca806cbf.1770483674.git.u.kleine-koenig@baylibre.com>
Hi Uwe,
kernel test robot noticed the following build errors:
[auto build test ERROR on 0636e6205beed850d985276dc56fd73d785bea5c]
url: https://github.com/intel-lab-lkp/linux/commits/Uwe-Kleine-K-nig/fbdev-au1100fb-Don-t-store-device-specific-data-in-global-variables/20260208-011505
base: 0636e6205beed850d985276dc56fd73d785bea5c
patch link: https://lore.kernel.org/r/b894247689a7a920d9caa465dbcb840bca806cbf.1770483674.git.u.kleine-koenig%40baylibre.com
patch subject: [PATCH v2 4/4] fbdev: au1100fb: Make driver compilable on non-mips platforms
config: mips-randconfig-r123-20260208 (https://download.01.org/0day-ci/archive/20260208/202602081811.HrSb1oUf-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260208/202602081811.HrSb1oUf-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602081811.HrSb1oUf-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
>> drivers/video/fbdev/au1100fb.c:447:39: error: call to undeclared function 'KSEG1ADDR'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
447 | fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(fbdev->info.fix.mmio_start);
| ^
>> drivers/video/fbdev/au1100fb.c:447:16: warning: cast to 'struct au1100fb_regs *' from smaller integer type 'int' [-Wint-to-pointer-cast]
447 | fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(fbdev->info.fix.mmio_start);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
vim +/KSEG1ADDR +447 drivers/video/fbdev/au1100fb.c
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 403
48c68c4f1b5424 drivers/video/au1100fb.c Greg Kroah-Hartman 2012-12-21 404 static int au1100fb_drv_probe(struct platform_device *dev)
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 405 {
46953e6aab262d drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 406 struct au1100fb_device *fbdev;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 407 struct resource *regs_res;
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 408 struct clk *c;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 409
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 410 /* Allocate new device private */
db66f0252e2f17 drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 411 fbdev = devm_kzalloc(&dev->dev, sizeof(*fbdev), GFP_KERNEL);
29914badc59b23 drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 412 if (!fbdev)
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 413 return -ENOMEM;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 414
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 415 if (au1100fb_setup(fbdev))
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 416 goto failed;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 417
7a192ec334cab9 drivers/video/au1100fb.c Ming Lei 2009-02-06 418 platform_set_drvdata(dev, (void *)fbdev);
67f30ad19c4b32 drivers/video/fbdev/au1100fb.c Christoph Hellwig 2019-04-28 419 fbdev->dev = &dev->dev;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 420
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 421 /* Allocate region for our registers and map them */
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 422 regs_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 423 if (!regs_res) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 424 print_err("fail to retrieve registers resource");
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 425 return -EFAULT;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 426 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 427
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 428 fbdev->info.fix = (struct fb_fix_screeninfo) {
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 429 .mmio_start = regs_res->start,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 430 .mmio_len = resource_size(regs_res),
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 431 .id = "AU1100 FB",
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 432 .xpanstep = 1,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 433 .ypanstep = 1,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 434 .type = FB_TYPE_PACKED_PIXELS,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 435 .accel = FB_ACCEL_NONE,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 436 };
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 437
93019734555f8d drivers/video/au1100fb.c Manuel Lauss 2012-03-24 438 if (!devm_request_mem_region(&dev->dev,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 439 fbdev->info.fix.mmio_start,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 440 fbdev->info.fix.mmio_len,
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 441 DRIVER_NAME)) {
c05b7f3d12b945 drivers/video/au1100fb.c Rodolfo Giometti 2006-05-30 442 print_err("fail to lock memory region at 0x%08lx",
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 443 fbdev->info.fix.mmio_start);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 444 return -EBUSY;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 445 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 446
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 @447 fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(fbdev->info.fix.mmio_start);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 448
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 449 print_dbg("Register memory map at %p", fbdev->regs);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 450 print_dbg("phys=0x%08x, size=%d", fbdev->regs_phys, fbdev->regs_len);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 451
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 452 c = clk_get(NULL, "lcd_intclk");
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 453 if (!IS_ERR(c)) {
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 454 fbdev->lcdclk = c;
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 455 clk_set_rate(c, 48000000);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 456 clk_prepare_enable(c);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 457 }
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 458
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 459 /* Allocate the framebuffer to the maximum screen size * nbr of video buffers */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 460 fbdev->fb_len = fbdev->panel->xres * fbdev->panel->yres *
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 461 (fbdev->panel->bpp >> 3) * AU1100FB_NBR_VIDEO_BUFFERS;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 462
93019734555f8d drivers/video/au1100fb.c Manuel Lauss 2012-03-24 463 fbdev->fb_mem = dmam_alloc_coherent(&dev->dev,
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 464 PAGE_ALIGN(fbdev->fb_len),
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 465 &fbdev->fb_phys, GFP_KERNEL);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 466 if (!fbdev->fb_mem) {
4bad214934b5f7 drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 467 print_err("fail to allocate framebuffer (size: %zuK))",
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 468 fbdev->fb_len / 1024);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 469 return -ENOMEM;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 470 }
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 471
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 472 fbdev->info.fix.smem_start = fbdev->fb_phys;
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 473 fbdev->info.fix.smem_len = fbdev->fb_len;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 474
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 475 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 476 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 477
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 478 /* load the panel info into the var struct */
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 479 fbdev->info.var = (struct fb_var_screeninfo) {
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 480 .activate = FB_ACTIVATE_NOW,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 481 .height = -1,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 482 .width = -1,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 483 .vmode = FB_VMODE_NONINTERLACED,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 484 .bits_per_pixel = fbdev->panel->bpp,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 485 .xres = fbdev->panel->xres,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 486 .xres_virtual = fbdev->panel->xres,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 487 .yres = fbdev->panel->yres,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 488 .yres_virtual = fbdev->panel->yres,
fe1835daa1ae0e drivers/video/fbdev/au1100fb.c Uwe Kleine-König 2026-02-07 489 };
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 490
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 491 fbdev->info.screen_base = fbdev->fb_mem;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 492 fbdev->info.fbops = &au1100fb_ops;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 493
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 494 fbdev->info.pseudo_palette =
a86854d0c599b3 drivers/video/fbdev/au1100fb.c Kees Cook 2018-06-12 495 devm_kcalloc(&dev->dev, 16, sizeof(u32), GFP_KERNEL);
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 496 if (!fbdev->info.pseudo_palette)
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 497 return -ENOMEM;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 498
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 499 if (fb_alloc_cmap(&fbdev->info.cmap, AU1100_LCD_NBR_PALETTE_ENTRIES, 0) < 0) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 500 print_err("Fail to allocate colormap (%d entries)",
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 501 AU1100_LCD_NBR_PALETTE_ENTRIES);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 502 return -EFAULT;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 503 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 504
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 505 /* Set h/w registers */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 506 au1100fb_setmode(fbdev);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 507
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 508 /* Register new framebuffer */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 509 if (register_framebuffer(&fbdev->info) < 0) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 510 print_err("cannot register new framebuffer");
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 511 goto failed;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 512 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 513
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 514 return 0;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 515
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 516 failed:
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 517 if (fbdev->lcdclk) {
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 518 clk_disable_unprepare(fbdev->lcdclk);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 519 clk_put(fbdev->lcdclk);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 520 }
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 521 if (fbdev->info.cmap.len != 0) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 522 fb_dealloc_cmap(&fbdev->info.cmap);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 523 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 524
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 525 return -ENODEV;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 526 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 527
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2026-02-08 11:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-07 17:12 [PATCH v2 0/4] fbdev: au1100fb: support COMPILE_TEST and fix multi-device support Uwe Kleine-König
2026-02-07 17:12 ` [PATCH v2 1/4] fbdev: au1100fb: Don't store device specific data in global variables Uwe Kleine-König
2026-02-07 19:04 ` Helge Deller
2026-02-07 21:34 ` Uwe Kleine-König
2026-02-08 17:48 ` Uwe Kleine-König
2026-02-07 17:12 ` [PATCH v2 2/4] fbdev: au1100fb: Mark several local functions as static Uwe Kleine-König
2026-02-07 17:12 ` [PATCH v2 3/4] fbdev: au1100fb: Use %zu to printk a value of type size_t Uwe Kleine-König
2026-02-07 19:06 ` Helge Deller
2026-02-07 21:32 ` Uwe Kleine-König
2026-02-07 17:12 ` [PATCH v2 4/4] fbdev: au1100fb: Make driver compilable on non-mips platforms Uwe Kleine-König
2026-02-07 22:02 ` kernel test robot
2026-02-07 23:04 ` kernel test robot
2026-02-08 11:12 ` kernel test robot [this message]
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