From: "Uwe Kleine-König" <u.kleine-koenig@baylibre.com>
To: kernel test robot <lkp@intel.com>
Cc: oe-kbuild-all@lists.linux.dev, Helge Deller <deller@gmx.de>
Subject: Re: [deller-fbdev:fbdev-7.0-2 4/7] drivers/video/fbdev/au1100fb.c:448:39: error: call to undeclared function 'KSEG1ADDR'; ISO C99 and later do not support implicit function declarations
Date: Tue, 9 Jun 2026 21:26:54 +0200 [thread overview]
Message-ID: <aihoh79KdDxH0fsI@monoceros> (raw)
In-Reply-To: <202606100206.xNHV4qAm-lkp@intel.com>
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On Wed, Jun 10, 2026 at 03:06:45AM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev.git fbdev-7.0-2
> head: 0f967cb8ea04486953f85b249b42dda3de842053
> commit: 6f366e86481a7503a821de82930df517dddd4047 [4/7] fbdev: au1100fb: Make driver compilable on non-mips platforms
> config: mips-randconfig-r054-20260609 (https://download.01.org/0day-ci/archive/20260610/202606100206.xNHV4qAm-lkp@intel.com/config)
> compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 7917772d7d61384696c61102c08c2ea158e610fa)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260610/202606100206.xNHV4qAm-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/202606100206.xNHV4qAm-lkp@intel.com/
>
> All error/warnings (new ones prefixed by >>):
>
> >> drivers/video/fbdev/au1100fb.c:448:39: error: call to undeclared function 'KSEG1ADDR'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> 448 | fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(fbdev->info.fix.mmio_start);
> | ^
> >> drivers/video/fbdev/au1100fb.c:448:16: warning: cast to 'struct au1100fb_regs *' from smaller integer type 'int' [-Wint-to-pointer-cast]
> 448 | fbdev->regs = (struct au1100fb_regs*)KSEG1ADDR(fbdev->info.fix.mmio_start);
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1 warning and 1 error generated.
This is an old bug that was fixed in commit e31a374a99f5 ("fbdev:
au1100fb: Fix build on MIPS64").
Best regards
Uwe
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prev parent reply other threads:[~2026-06-09 19:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-09 19:06 [deller-fbdev:fbdev-7.0-2 4/7] drivers/video/fbdev/au1100fb.c:448:39: error: call to undeclared function 'KSEG1ADDR'; ISO C99 and later do not support implicit function declarations kernel test robot
2026-06-09 19:26 ` Uwe Kleine-König [this message]
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