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From: kernel test robot <lkp@intel.com>
To: kbuild-all@lists.01.org
Subject: drivers/media/common/videobuf2/videobuf2-dma-contig.c:509:5: error: implicit declaration of function '__pfn_to_phys'
Date: Thu, 11 Feb 2021 22:03:54 +0800	[thread overview]
Message-ID: <202102112238.87CWG6bY-lkp@intel.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 17496 bytes --]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   291009f656e8eaebbdfd3a8d99f6b190a9ce9deb
commit: 4bfc848e0981fcd35db00fe1c6581560689f6dc7 m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM
date:   8 weeks ago
config: m68k-randconfig-r021-20210211 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4bfc848e0981fcd35db00fe1c6581560689f6dc7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 4bfc848e0981fcd35db00fe1c6581560689f6dc7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/media/common/videobuf2/videobuf2-dma-contig.c: In function 'vb2_dc_get_userptr':
>> drivers/media/common/videobuf2/videobuf2-dma-contig.c:509:5: error: implicit declaration of function '__pfn_to_phys' [-Werror=implicit-function-declaration]
     509 |     __pfn_to_phys(nums[0]), size, buf->dma_dir, 0);
         |     ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/__pfn_to_phys +509 drivers/media/common/videobuf2/videobuf2-dma-contig.c

e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  455  
36c0f8b32c4bd4 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-04-15  456  static void *vb2_dc_get_userptr(struct device *dev, unsigned long vaddr,
cd474037c4a9a9 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  457  	unsigned long size, enum dma_data_direction dma_dir)
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  458  {
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  459  	struct vb2_dc_buf *buf;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  460  	struct frame_vector *vec;
c4860ad6056483 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tvrtko Ursulin      2017-07-31  461  	unsigned int offset;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  462  	int n_pages, i;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  463  	int ret = 0;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  464  	struct sg_table *sgt;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  465  	unsigned long contig_size;
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  466  	unsigned long dma_align = dma_get_cache_alignment();
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  467  
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  468  	/* Only cache aligned DMA transfers are reliable */
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  469  	if (!IS_ALIGNED(vaddr | size, dma_align)) {
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  470  		pr_debug("user data must be aligned to %lu bytes\n", dma_align);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  471  		return ERR_PTR(-EINVAL);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  472  	}
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  473  
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  474  	if (!size) {
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  475  		pr_debug("size is zero\n");
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  476  		return ERR_PTR(-EINVAL);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  477  	}
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  478  
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  479  	if (WARN_ON(!dev))
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  480  		return ERR_PTR(-EINVAL);
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  481  
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  482  	buf = kzalloc(sizeof *buf, GFP_KERNEL);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  483  	if (!buf)
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  484  		return ERR_PTR(-ENOMEM);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  485  
36c0f8b32c4bd4 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-04-15  486  	buf->dev = dev;
cd474037c4a9a9 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  487  	buf->dma_dir = dma_dir;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  488  
c4860ad6056483 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tvrtko Ursulin      2017-07-31  489  	offset = lower_32_bits(offset_in_page(vaddr));
707947247e9517 drivers/media/common/videobuf2/videobuf2-dma-contig.c Hans Verkuil        2019-04-04  490  	vec = vb2_create_framevec(vaddr, size);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  491  	if (IS_ERR(vec)) {
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  492  		ret = PTR_ERR(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  493  		goto fail_buf;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  494  	}
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  495  	buf->vec = vec;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  496  	n_pages = frame_vector_count(vec);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  497  	ret = frame_vector_to_pages(vec);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  498  	if (ret < 0) {
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  499  		unsigned long *nums = frame_vector_pfns(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  500  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  501  		/*
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  502  		 * Failed to convert to pages... Check the memory is physically
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  503  		 * contiguous and use direct mapping
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  504  		 */
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  505  		for (i = 1; i < n_pages; i++)
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  506  			if (nums[i-1] + 1 != nums[i])
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  507  				goto fail_pfnvec;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  508  		buf->dma_addr = dma_map_resource(buf->dev,
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04 @509  				__pfn_to_phys(nums[0]), size, buf->dma_dir, 0);
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  510  		if (dma_mapping_error(buf->dev, buf->dma_addr)) {
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  511  			ret = -ENOMEM;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  512  			goto fail_pfnvec;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  513  		}
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  514  		goto out;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  515  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  516  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  517  	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  518  	if (!sgt) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  519  		pr_err("failed to allocate sg table\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  520  		ret = -ENOMEM;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  521  		goto fail_pfnvec;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  522  	}
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  523  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  524  	ret = sg_alloc_table_from_pages(sgt, frame_vector_pages(vec), n_pages,
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  525  		offset, size, GFP_KERNEL);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  526  	if (ret) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  527  		pr_err("failed to initialize sg table\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  528  		goto fail_sgt;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  529  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  530  
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  531  	/*
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  532  	 * No need to sync to the device, this will happen later when the
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  533  	 * prepare() memop is called.
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  534  	 */
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  535  	if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir,
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  536  			    DMA_ATTR_SKIP_CPU_SYNC)) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  537  		pr_err("failed to map scatterlist\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  538  		ret = -EIO;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  539  		goto fail_sgt_init;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  540  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  541  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  542  	contig_size = vb2_dc_get_contiguous_size(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  543  	if (contig_size < size) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  544  		pr_err("contiguous mapping is too small %lu/%lu\n",
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  545  			contig_size, size);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  546  		ret = -EFAULT;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  547  		goto fail_map_sg;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  548  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  549  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  550  	buf->dma_addr = sg_dma_address(sgt->sgl);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  551  	buf->dma_sgt = sgt;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  552  out:
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  553  	buf->size = size;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  554  
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  555  	return buf;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  556  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  557  fail_map_sg:
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  558  	dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  559  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  560  fail_sgt_init:
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  561  	sg_free_table(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  562  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  563  fail_sgt:
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  564  	kfree(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  565  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  566  fail_pfnvec:
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  567  	vb2_destroy_framevec(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  568  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  569  fail_buf:
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  570  	kfree(buf);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  571  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  572  	return ERR_PTR(ret);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  573  }
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  574  

:::::: The code at line 509 was first introduced by commit
:::::: 55ea54441fb3b6532d5d32417911ff5a10750903 videobuf2: replace a layering violation with dma_map_resource

:::::: TO: Christoph Hellwig <hch@lst.de>
:::::: CC: Christoph Hellwig <hch@lst.de>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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WARNING: multiple messages have this Message-ID (diff)
From: kernel test robot <lkp@intel.com>
To: Mike Rapoport <rppt@linux.ibm.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Linux Memory Management List <linux-mm@kvack.org>
Subject: drivers/media/common/videobuf2/videobuf2-dma-contig.c:509:5: error: implicit declaration of function '__pfn_to_phys'
Date: Thu, 11 Feb 2021 22:03:54 +0800	[thread overview]
Message-ID: <202102112238.87CWG6bY-lkp@intel.com> (raw)

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   291009f656e8eaebbdfd3a8d99f6b190a9ce9deb
commit: 4bfc848e0981fcd35db00fe1c6581560689f6dc7 m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM
date:   8 weeks ago
config: m68k-randconfig-r021-20210211 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4bfc848e0981fcd35db00fe1c6581560689f6dc7
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 4bfc848e0981fcd35db00fe1c6581560689f6dc7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/media/common/videobuf2/videobuf2-dma-contig.c: In function 'vb2_dc_get_userptr':
>> drivers/media/common/videobuf2/videobuf2-dma-contig.c:509:5: error: implicit declaration of function '__pfn_to_phys' [-Werror=implicit-function-declaration]
     509 |     __pfn_to_phys(nums[0]), size, buf->dma_dir, 0);
         |     ^~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/__pfn_to_phys +509 drivers/media/common/videobuf2/videobuf2-dma-contig.c

e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  455  
36c0f8b32c4bd4 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-04-15  456  static void *vb2_dc_get_userptr(struct device *dev, unsigned long vaddr,
cd474037c4a9a9 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  457  	unsigned long size, enum dma_data_direction dma_dir)
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  458  {
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  459  	struct vb2_dc_buf *buf;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  460  	struct frame_vector *vec;
c4860ad6056483 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tvrtko Ursulin      2017-07-31  461  	unsigned int offset;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  462  	int n_pages, i;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  463  	int ret = 0;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  464  	struct sg_table *sgt;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  465  	unsigned long contig_size;
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  466  	unsigned long dma_align = dma_get_cache_alignment();
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  467  
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  468  	/* Only cache aligned DMA transfers are reliable */
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  469  	if (!IS_ALIGNED(vaddr | size, dma_align)) {
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  470  		pr_debug("user data must be aligned to %lu bytes\n", dma_align);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  471  		return ERR_PTR(-EINVAL);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  472  	}
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  473  
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  474  	if (!size) {
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  475  		pr_debug("size is zero\n");
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  476  		return ERR_PTR(-EINVAL);
d81e870d5afa1b drivers/media/v4l2-core/videobuf2-dma-contig.c        Marek Szyprowski    2012-06-12  477  	}
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  478  
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  479  	if (WARN_ON(!dev))
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  480  		return ERR_PTR(-EINVAL);
10791829eb52d5 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-07-21  481  
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  482  	buf = kzalloc(sizeof *buf, GFP_KERNEL);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  483  	if (!buf)
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  484  		return ERR_PTR(-ENOMEM);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  485  
36c0f8b32c4bd4 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2016-04-15  486  	buf->dev = dev;
cd474037c4a9a9 drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  487  	buf->dma_dir = dma_dir;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  488  
c4860ad6056483 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tvrtko Ursulin      2017-07-31  489  	offset = lower_32_bits(offset_in_page(vaddr));
707947247e9517 drivers/media/common/videobuf2/videobuf2-dma-contig.c Hans Verkuil        2019-04-04  490  	vec = vb2_create_framevec(vaddr, size);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  491  	if (IS_ERR(vec)) {
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  492  		ret = PTR_ERR(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  493  		goto fail_buf;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  494  	}
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  495  	buf->vec = vec;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  496  	n_pages = frame_vector_count(vec);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  497  	ret = frame_vector_to_pages(vec);
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  498  	if (ret < 0) {
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  499  		unsigned long *nums = frame_vector_pfns(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  500  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  501  		/*
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  502  		 * Failed to convert to pages... Check the memory is physically
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  503  		 * contiguous and use direct mapping
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  504  		 */
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  505  		for (i = 1; i < n_pages; i++)
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  506  			if (nums[i-1] + 1 != nums[i])
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  507  				goto fail_pfnvec;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  508  		buf->dma_addr = dma_map_resource(buf->dev,
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04 @509  				__pfn_to_phys(nums[0]), size, buf->dma_dir, 0);
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  510  		if (dma_mapping_error(buf->dev, buf->dma_addr)) {
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  511  			ret = -ENOMEM;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  512  			goto fail_pfnvec;
55ea54441fb3b6 drivers/media/common/videobuf2/videobuf2-dma-contig.c Christoph Hellwig   2019-01-04  513  		}
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  514  		goto out;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  515  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  516  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  517  	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  518  	if (!sgt) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  519  		pr_err("failed to allocate sg table\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  520  		ret = -ENOMEM;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  521  		goto fail_pfnvec;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  522  	}
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  523  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  524  	ret = sg_alloc_table_from_pages(sgt, frame_vector_pages(vec), n_pages,
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  525  		offset, size, GFP_KERNEL);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  526  	if (ret) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  527  		pr_err("failed to initialize sg table\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  528  		goto fail_sgt;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  529  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  530  
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  531  	/*
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  532  	 * No need to sync to the device, this will happen later when the
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  533  	 * prepare() memop is called.
251a79f8f5adfd drivers/media/v4l2-core/videobuf2-dma-contig.c        Hans Verkuil        2014-11-18  534  	 */
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  535  	if (dma_map_sgtable(buf->dev, sgt, buf->dma_dir,
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  536  			    DMA_ATTR_SKIP_CPU_SYNC)) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  537  		pr_err("failed to map scatterlist\n");
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  538  		ret = -EIO;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  539  		goto fail_sgt_init;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  540  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  541  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  542  	contig_size = vb2_dc_get_contiguous_size(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  543  	if (contig_size < size) {
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  544  		pr_err("contiguous mapping is too small %lu/%lu\n",
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  545  			contig_size, size);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  546  		ret = -EFAULT;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  547  		goto fail_map_sg;
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  548  	}
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  549  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  550  	buf->dma_addr = sg_dma_address(sgt->sgl);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  551  	buf->dma_sgt = sgt;
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  552  out:
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  553  	buf->size = size;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  554  
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  555  	return buf;
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  556  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  557  fail_map_sg:
8b7c0280ab03dd drivers/media/common/videobuf2/videobuf2-dma-contig.c Marek Szyprowski    2020-09-04  558  	dma_unmap_sgtable(buf->dev, sgt, buf->dma_dir, DMA_ATTR_SKIP_CPU_SYNC);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  559  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  560  fail_sgt_init:
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  561  	sg_free_table(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  562  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  563  fail_sgt:
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  564  	kfree(sgt);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  565  
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  566  fail_pfnvec:
fb639eb3915431 drivers/media/v4l2-core/videobuf2-dma-contig.c        Jan Kara            2015-07-13  567  	vb2_destroy_framevec(vec);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  568  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  569  fail_buf:
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  570  	kfree(buf);
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  571  
e15dab752d4c58 drivers/media/v4l2-core/videobuf2-dma-contig.c        Tomasz Stanislawski 2012-06-14  572  	return ERR_PTR(ret);
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  573  }
1a758d4e847f77 drivers/media/video/videobuf2-dma-contig.c            Pawel Osciak        2010-10-11  574  

:::::: The code at line 509 was first introduced by commit
:::::: 55ea54441fb3b6532d5d32417911ff5a10750903 videobuf2: replace a layering violation with dma_map_resource

:::::: TO: Christoph Hellwig <hch@lst.de>
:::::: CC: Christoph Hellwig <hch@lst.de>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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             reply	other threads:[~2021-02-11 14:03 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-11 14:03 kernel test robot [this message]
2021-02-11 14:03 ` drivers/media/common/videobuf2/videobuf2-dma-contig.c:509:5: error: implicit declaration of function '__pfn_to_phys' kernel test robot
2021-02-11 23:22 ` Mike Rapoport

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