From: kernel test robot <lkp@intel.com>
To: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>,
"Helge Deller" <deller@gmx.de>
Cc: llvm@lists.linux.dev, 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 v1 2/3] fbdev: au1100fb: Make driver compilable on non-mips platforms
Date: Wed, 4 Feb 2026 22:13:50 +0800 [thread overview]
Message-ID: <202602042233.GXk79AnA-lkp@intel.com> (raw)
In-Reply-To: <474eca0c9ecb8a2e610e82922ad22ad7e8ff0b8b.1770196161.git.u.kleine-koenig@baylibre.com>
Hi Uwe,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 0636e6205beed850d985276dc56fd73d785bea5c]
url: https://github.com/intel-lab-lkp/linux/commits/Uwe-Kleine-K-nig/fbdev-au1100fb-Mark-several-local-functions-as-static/20260204-171704
base: 0636e6205beed850d985276dc56fd73d785bea5c
patch link: https://lore.kernel.org/r/474eca0c9ecb8a2e610e82922ad22ad7e8ff0b8b.1770196161.git.u.kleine-koenig%40baylibre.com
patch subject: [PATCH v1 2/3] fbdev: au1100fb: Make driver compilable on non-mips platforms
config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20260204/202602042233.GXk79AnA-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/20260204/202602042233.GXk79AnA-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/202602042233.GXk79AnA-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/video/fbdev/au1100fb.c:473:6: warning: format specifies type 'int' but the argument has type 'size_t' (aka 'unsigned long') [-Wformat]
472 | print_err("fail to allocate framebuffer (size: %dK))",
| ~~
| %zu
473 | fbdev->fb_len / 1024);
| ^~~~~~~~~~~~~~~~~~~~
drivers/video/fbdev/au1100fb.h:33:74: note: expanded from macro 'print_err'
33 | #define print_err(f, arg...) printk(KERN_ERR DRIVER_NAME ": " f "\n", ## arg)
| ~ ^~~
include/linux/printk.h:512:60: note: expanded from macro 'printk'
512 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:484:19: note: expanded from macro 'printk_index_wrap'
484 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
1 warning generated.
vim +473 drivers/video/fbdev/au1100fb.c
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 415
48c68c4f1b5424 drivers/video/au1100fb.c Greg Kroah-Hartman 2012-12-21 416 static int au1100fb_drv_probe(struct platform_device *dev)
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 417 {
46953e6aab262d drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 418 struct au1100fb_device *fbdev;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 419 struct resource *regs_res;
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 420 struct clk *c;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 421
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 422 /* Allocate new device private */
db66f0252e2f17 drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 423 fbdev = devm_kzalloc(&dev->dev, sizeof(*fbdev), GFP_KERNEL);
29914badc59b23 drivers/video/fbdev/au1100fb.c Markus Elfring 2018-03-28 424 if (!fbdev)
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 425 return -ENOMEM;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 426
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 427 if (au1100fb_setup(fbdev))
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 428 goto failed;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 429
7a192ec334cab9 drivers/video/au1100fb.c Ming Lei 2009-02-06 430 platform_set_drvdata(dev, (void *)fbdev);
67f30ad19c4b32 drivers/video/fbdev/au1100fb.c Christoph Hellwig 2019-04-28 431 fbdev->dev = &dev->dev;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 432
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 433 /* Allocate region for our registers and map them */
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 434 regs_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
d121c3f3cedb84 drivers/video/au1100fb.c Manuel Lauss 2011-09-30 435 if (!regs_res) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 436 print_err("fail to retrieve registers resource");
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 437 return -EFAULT;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 438 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 439
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 440 au1100fb_fix.mmio_start = regs_res->start;
28f65c11f2ffb3 drivers/video/au1100fb.c Joe Perches 2011-06-09 441 au1100fb_fix.mmio_len = resource_size(regs_res);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 442
93019734555f8d drivers/video/au1100fb.c Manuel Lauss 2012-03-24 443 if (!devm_request_mem_region(&dev->dev,
93019734555f8d drivers/video/au1100fb.c Manuel Lauss 2012-03-24 444 au1100fb_fix.mmio_start,
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 445 au1100fb_fix.mmio_len,
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 446 DRIVER_NAME)) {
c05b7f3d12b945 drivers/video/au1100fb.c Rodolfo Giometti 2006-05-30 447 print_err("fail to lock memory region at 0x%08lx",
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 448 au1100fb_fix.mmio_start);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 449 return -EBUSY;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 450 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 451
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 452 fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(au1100fb_fix.mmio_start);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 453
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 454 print_dbg("Register memory map at %p", fbdev->regs);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 455 print_dbg("phys=0x%08x, size=%d", fbdev->regs_phys, fbdev->regs_len);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 456
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 457 c = clk_get(NULL, "lcd_intclk");
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 458 if (!IS_ERR(c)) {
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 459 fbdev->lcdclk = c;
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 460 clk_set_rate(c, 48000000);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 461 clk_prepare_enable(c);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 462 }
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 463
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 464 /* Allocate the framebuffer to the maximum screen size * nbr of video buffers */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 465 fbdev->fb_len = fbdev->panel->xres * fbdev->panel->yres *
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 466 (fbdev->panel->bpp >> 3) * AU1100FB_NBR_VIDEO_BUFFERS;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 467
93019734555f8d drivers/video/au1100fb.c Manuel Lauss 2012-03-24 468 fbdev->fb_mem = dmam_alloc_coherent(&dev->dev,
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 469 PAGE_ALIGN(fbdev->fb_len),
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 470 &fbdev->fb_phys, GFP_KERNEL);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 471 if (!fbdev->fb_mem) {
3879490f3a9765 drivers/video/fbdev/au1100fb.c Colin Ian King 2018-05-15 472 print_err("fail to allocate framebuffer (size: %dK))",
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 @473 fbdev->fb_len / 1024);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 474 return -ENOMEM;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 475 }
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 476
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 477 au1100fb_fix.smem_start = fbdev->fb_phys;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 478 au1100fb_fix.smem_len = fbdev->fb_len;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 479
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 480 print_dbg("Framebuffer memory map at %p", fbdev->fb_mem);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 481 print_dbg("phys=0x%08x, size=%dK", fbdev->fb_phys, fbdev->fb_len / 1024);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 482
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 483 /* load the panel info into the var struct */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 484 au1100fb_var.bits_per_pixel = fbdev->panel->bpp;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 485 au1100fb_var.xres = fbdev->panel->xres;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 486 au1100fb_var.xres_virtual = au1100fb_var.xres;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 487 au1100fb_var.yres = fbdev->panel->yres;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 488 au1100fb_var.yres_virtual = au1100fb_var.yres;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 489
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 490 fbdev->info.screen_base = fbdev->fb_mem;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 491 fbdev->info.fbops = &au1100fb_ops;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 492 fbdev->info.fix = au1100fb_fix;
^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 fbdev->info.var = au1100fb_var;
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 506
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 507 /* Set h/w registers */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 508 au1100fb_setmode(fbdev);
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 509
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 510 /* Register new framebuffer */
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 511 if (register_framebuffer(&fbdev->info) < 0) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 512 print_err("cannot register new framebuffer");
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 513 goto failed;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 514 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 515
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 516 return 0;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 517
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 518 failed:
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 519 if (fbdev->lcdclk) {
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 520 clk_disable_unprepare(fbdev->lcdclk);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 521 clk_put(fbdev->lcdclk);
6b1889c14b4606 drivers/video/fbdev/au1100fb.c Manuel Lauss 2014-07-23 522 }
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 523 if (fbdev->info.cmap.len != 0) {
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 524 fb_dealloc_cmap(&fbdev->info.cmap);
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 525 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 526
1c16697bf9d5b2 drivers/video/au1100fb.c Julia Lawall 2012-01-21 527 return -ENODEV;
3b495f2bb749b8 drivers/video/au1100fb.c Pete Popov 2005-04-04 528 }
^1da177e4c3f41 drivers/video/au1100fb.c Linus Torvalds 2005-04-16 529
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2026-02-04 14:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-04 9:15 [PATCH v1 0/3] fbdev: au1100fb: support COMPILE_TEST and fix multi-device support Uwe Kleine-König
2026-02-04 9:15 ` [PATCH v1 1/3] fbdev: au1100fb: Mark several local functions as static Uwe Kleine-König
2026-02-06 11:06 ` Helge Deller
2026-02-06 11:22 ` Helge Deller
2026-02-06 14:15 ` Uwe Kleine-König
2026-02-04 9:15 ` [PATCH v1 2/3] fbdev: au1100fb: Make driver compilable on non-mips platforms Uwe Kleine-König
2026-02-04 14:13 ` kernel test robot [this message]
2026-02-04 14:34 ` kernel test robot
2026-02-04 15:16 ` kernel test robot
2026-02-04 9:15 ` [PATCH v1 3/3] fbdev: au1100fb: Don't store device specific data in global variables Uwe Kleine-König
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