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Date: Fri, 23 Feb 2024 07:52:13 +0800
From: kernel test robot <lkp@intel.com>
To: Thomas Zimmermann <tzimmermann@suse.de>, arnd@arndb.de,
	javierm@redhat.com, deller@gmx.de, suijingfeng@loongson.cn
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-arch@vger.kernel.org, dri-devel@lists.freedesktop.org,
	linux-fbdev@vger.kernel.org, sparclinux@vger.kernel.org,
	linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-parisc@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-m68k@lists.linux-m68k.org, loongarch@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org,
	Thomas Zimmermann <tzimmermann@suse.de>,
	Vineet Gupta <vgupta@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Huacai Chen <chenhuacai@kernel.org>,
	WANG Xuerui <kernel@xen0n.name>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Rich Felker <dalias@libc.org>
Subject: Re: [PATCH 3/3] arch: Rename fbdev header and source files
Message-ID: <202402230737.e7gWpGUp-lkp@intel.com>
References: <20240221161431.8245-4-tzimmermann@suse.de>
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In-Reply-To: <20240221161431.8245-4-tzimmermann@suse.de>

Hi Thomas,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/x86/core]
[also build test ERROR on deller-parisc/for-next arnd-asm-generic/master linus/master v6.8-rc5]
[cannot apply to next-20240222]
[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/arch-Select-fbdev-helpers-with-CONFIG_VIDEO/20240222-001622
base:   tip/x86/core
patch link:    https://lore.kernel.org/r/20240221161431.8245-4-tzimmermann%40suse.de
patch subject: [PATCH 3/3] arch: Rename fbdev header and source files
config: um-randconfig-002-20240222 (https://download.01.org/0day-ci/archive/20240223/202402230737.e7gWpGUp-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project edd4aee4dd9b5b98b2576a6f783e4086173d902a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240223/202402230737.e7gWpGUp-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/202402230737.e7gWpGUp-lkp@intel.com/

All errors (new ones prefixed by >>):

   /usr/bin/ld: warning: .tmp_vmlinux.kallsyms1 has a LOAD segment with RWX permissions
   /usr/bin/ld: drivers/video/fbdev/core/fb_io_fops.o: in function `fb_io_mmap':
>> drivers/video/fbdev/core/fb_io_fops.c:164: undefined reference to `pgprot_framebuffer'
   clang: error: linker command failed with exit code 1 (use -v to see invocation)


vim +164 drivers/video/fbdev/core/fb_io_fops.c

6b180f66c0dd62 Thomas Zimmermann 2023-09-27  140  
33253d9e01d405 Thomas Zimmermann 2023-11-27  141  int fb_io_mmap(struct fb_info *info, struct vm_area_struct *vma)
33253d9e01d405 Thomas Zimmermann 2023-11-27  142  {
33253d9e01d405 Thomas Zimmermann 2023-11-27  143  	unsigned long start = info->fix.smem_start;
33253d9e01d405 Thomas Zimmermann 2023-11-27  144  	u32 len = info->fix.smem_len;
33253d9e01d405 Thomas Zimmermann 2023-11-27  145  	unsigned long mmio_pgoff = PAGE_ALIGN((start & ~PAGE_MASK) + len) >> PAGE_SHIFT;
33253d9e01d405 Thomas Zimmermann 2023-11-27  146  
b3e8813773c568 Thomas Zimmermann 2023-11-27  147  	if (info->flags & FBINFO_VIRTFB)
b3e8813773c568 Thomas Zimmermann 2023-11-27  148  		fb_warn_once(info, "Framebuffer is not in I/O address space.");
b3e8813773c568 Thomas Zimmermann 2023-11-27  149  
33253d9e01d405 Thomas Zimmermann 2023-11-27  150  	/*
33253d9e01d405 Thomas Zimmermann 2023-11-27  151  	 * This can be either the framebuffer mapping, or if pgoff points
33253d9e01d405 Thomas Zimmermann 2023-11-27  152  	 * past it, the mmio mapping.
33253d9e01d405 Thomas Zimmermann 2023-11-27  153  	 */
33253d9e01d405 Thomas Zimmermann 2023-11-27  154  	if (vma->vm_pgoff >= mmio_pgoff) {
33253d9e01d405 Thomas Zimmermann 2023-11-27  155  		if (info->var.accel_flags)
33253d9e01d405 Thomas Zimmermann 2023-11-27  156  			return -EINVAL;
33253d9e01d405 Thomas Zimmermann 2023-11-27  157  
33253d9e01d405 Thomas Zimmermann 2023-11-27  158  		vma->vm_pgoff -= mmio_pgoff;
33253d9e01d405 Thomas Zimmermann 2023-11-27  159  		start = info->fix.mmio_start;
33253d9e01d405 Thomas Zimmermann 2023-11-27  160  		len = info->fix.mmio_len;
33253d9e01d405 Thomas Zimmermann 2023-11-27  161  	}
33253d9e01d405 Thomas Zimmermann 2023-11-27  162  
33253d9e01d405 Thomas Zimmermann 2023-11-27  163  	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
33253d9e01d405 Thomas Zimmermann 2023-11-27 @164  	vma->vm_page_prot = pgprot_framebuffer(vma->vm_page_prot, vma->vm_start,
33253d9e01d405 Thomas Zimmermann 2023-11-27  165  					       vma->vm_end, start);
33253d9e01d405 Thomas Zimmermann 2023-11-27  166  
33253d9e01d405 Thomas Zimmermann 2023-11-27  167  	return vm_iomap_memory(vma, start, len);
33253d9e01d405 Thomas Zimmermann 2023-11-27  168  }
33253d9e01d405 Thomas Zimmermann 2023-11-27  169  EXPORT_SYMBOL(fb_io_mmap);
33253d9e01d405 Thomas Zimmermann 2023-11-27  170  

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki