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X-CSE-ConnectionGUID: MOCVJrqHQ0+hQOrnq+0/WQ== X-CSE-MsgGUID: s0V7+dvxRHOpFexl7j4r4Q== X-IronPort-AV: E=McAfee;i="6800,10657,11694"; a="71578653" X-IronPort-AV: E=Sophos;i="6.21,280,1763452800"; d="scan'208";a="71578653" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Feb 2026 03:13:05 -0800 X-CSE-ConnectionGUID: zEcqXVPfRsu9hInSSFicPQ== X-CSE-MsgGUID: FHDl3XRcTKWqmb46znSZGA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,280,1763452800"; d="scan'208";a="210551946" Received: from lkp-server01.sh.intel.com (HELO 765f4a05e27f) ([10.239.97.150]) by fmviesa006.fm.intel.com with ESMTP; 08 Feb 2026 03:13:03 -0800 Received: from kbuild by 765f4a05e27f with local (Exim 4.98.2) (envelope-from ) id 1vp2ir-00000000m9Y-0aZ3; Sun, 08 Feb 2026 11:13:01 +0000 Date: Sun, 8 Feb 2026 19:12:06 +0800 From: kernel test robot To: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , Helge Deller Cc: oe-kbuild-all@lists.linux.dev, Chen Ni , 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 Message-ID: <202602081811.HrSb1oUf-lkp@intel.com> References: Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: 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 | 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