[chrome-os:chromeos-5.4 23/34] include/linux/dma-direct.h:67:23: error: implicit declaration of function 'phys_to_dma'; did you mean 'phys_to_virt'?

[kernel test robot <lkp@intel.com>]

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tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4
head:   0ffc3fefa095fe3af167315342c27febc8ef1999
commit: c2daf6467d0eacb7ae780639bdb565c5aa312d64 [23/34] BACKPORT: dma-direct: rename and cleanup __phys_to_dma
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
        git fetch --no-tags chrome-os chromeos-5.4
        git checkout c2daf6467d0eacb7ae780639bdb565c5aa312d64
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

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 >>):

   In file included from drivers/iommu/intel/iommu.c:41:
   include/linux/dma-direct.h:58:20: error: conflicting types for 'dma_capable'
      58 | static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size,
         |                    ^~~~~~~~~~~
   In file included from include/linux/dma-direct.h:16,
                    from drivers/iommu/intel/iommu.c:41:
   arch/x86/include/asm/dma-direct.h:5:6: note: previous declaration of 'dma_capable' was here
       5 | bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
         |      ^~~~~~~~~~~
   In file included from drivers/iommu/intel/iommu.c:41:
   include/linux/dma-direct.h: In function 'dma_capable':
>> include/linux/dma-direct.h:67:23: error: implicit declaration of function 'phys_to_dma'; did you mean 'phys_to_virt'? [-Werror=implicit-function-declaration]
      67 |      min(addr, end) < phys_to_dma(dev, PFN_PHYS(min_low_pfn)))
         |                       ^~~~~~~~~~~
         |                       phys_to_virt
   include/linux/dma-direct.h: In function 'dma_direct_sync_single_for_device':
   include/linux/dma-direct.h:131:22: error: implicit declaration of function 'dma_to_phys'; did you mean 'virt_to_phys'? [-Werror=implicit-function-declaration]
     131 |  phys_addr_t paddr = dma_to_phys(dev, addr);
         |                      ^~~~~~~~~~~
         |                      virt_to_phys
   cc1: some warnings being treated as errors


vim +67 include/linux/dma-direct.h

9087c37584fb7d8 Tom Lendacky           2019-07-10  57  
5e3d879b39d714a Christoph Hellwig      2019-11-19  58  static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size,
5e3d879b39d714a Christoph Hellwig      2019-11-19  59  		bool is_ram)
f499b916beb465b Christoph Hellwig      2019-11-12  60  {
f499b916beb465b Christoph Hellwig      2019-11-12  61  	dma_addr_t end = addr + size - 1;
f499b916beb465b Christoph Hellwig      2019-11-12  62  
f499b916beb465b Christoph Hellwig      2019-11-12  63  	if (!dev->dma_mask)
f499b916beb465b Christoph Hellwig      2019-11-12  64  		return false;
f499b916beb465b Christoph Hellwig      2019-11-12  65  
5e3d879b39d714a Christoph Hellwig      2019-11-19  66  	if (is_ram && !IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT) &&
f499b916beb465b Christoph Hellwig      2019-11-12 @67  	    min(addr, end) < phys_to_dma(dev, PFN_PHYS(min_low_pfn)))
f499b916beb465b Christoph Hellwig      2019-11-12  68  		return false;
f499b916beb465b Christoph Hellwig      2019-11-12  69  
2d6f338d8e7b911 Nicolas Saenz Julienne 2019-11-21  70  	return end <= min_not_zero(*dev->dma_mask, dev->bus_dma_limit);
f499b916beb465b Christoph Hellwig      2019-11-12  71  }
f499b916beb465b Christoph Hellwig      2019-11-12  72  

:::::: The code at line 67 was first introduced by commit
:::::: f499b916beb465bb9087318982fd2676cebc32ce UPSTREAM: dma-direct: avoid a forward declaration for phys_to_dma

:::::: TO: Christoph Hellwig <hch@lst.de>
:::::: CC: Commit Bot <commit-bot@chromium.org>

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

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