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From: kernel test robot <lkp@intel.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-arch@vger.kernel.org
Subject: [arnd-asm-generic:dma-sync-rework 20/20] arch/hexagon/kernel/dma.c:19:27: error: use of undeclared identifier 'paddr'
Date: Fri, 24 Mar 2023 23:22:47 +0800	[thread overview]
Message-ID: <202303242303.IAFZ31Wv-lkp@intel.com> (raw)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git dma-sync-rework
head:   9a711fbea373208c1eeb2fafb0c744bc23a79a43
commit: 9a711fbea373208c1eeb2fafb0c744bc23a79a43 [20/20] dma-mapping: replace custom code with generic implementation
config: hexagon-randconfig-r033-20230324 (https://download.01.org/0day-ci/archive/20230324/202303242303.IAFZ31Wv-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
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/arnd/asm-generic.git/commit/?id=9a711fbea373208c1eeb2fafb0c744bc23a79a43
        git remote add arnd-asm-generic https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git
        git fetch --no-tags arnd-asm-generic dma-sync-rework
        git checkout 9a711fbea373208c1eeb2fafb0c744bc23a79a43
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303242303.IAFZ31Wv-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/hexagon/kernel/dma.c:8:
   In file included from include/linux/dma-map-ops.h:9:
   In file included from include/linux/dma-mapping.h:10:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __raw_readb(PCI_IOBASE + addr);
                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
   #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
                                                     ^
   In file included from arch/hexagon/kernel/dma.c:8:
   In file included from include/linux/dma-map-ops.h:9:
   In file included from include/linux/dma-mapping.h:10:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
                                                           ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
   #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
                                                     ^
   In file included from arch/hexagon/kernel/dma.c:8:
   In file included from include/linux/dma-map-ops.h:9:
   In file included from include/linux/dma-mapping.h:10:
   In file included from include/linux/scatterlist.h:9:
   In file included from arch/hexagon/include/asm/io.h:334:
   include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writeb(value, PCI_IOBASE + addr);
                               ~~~~~~~~~~ ^
   include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
   include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
           __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
                                                         ~~~~~~~~~~ ^
>> arch/hexagon/kernel/dma.c:19:27: error: use of undeclared identifier 'paddr'
           hexagon_inv_dcache_range(paddr, paddr + size);
                                    ^
   arch/hexagon/kernel/dma.c:19:34: error: use of undeclared identifier 'paddr'
           hexagon_inv_dcache_range(paddr, paddr + size);
                                           ^
>> arch/hexagon/kernel/dma.c:24:2: error: call to undeclared function 'hexagon_flush_dcache_range'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
           hexagon_flush_dcache_range(paddr, paddr + size);
           ^
   arch/hexagon/kernel/dma.c:24:2: note: did you mean 'hexagon_clean_dcache_range'?
   arch/hexagon/include/asm/cacheflush.h:75:13: note: 'hexagon_clean_dcache_range' declared here
   extern void hexagon_clean_dcache_range(unsigned long start, unsigned long end);
               ^
   arch/hexagon/kernel/dma.c:24:29: error: use of undeclared identifier 'paddr'
           hexagon_flush_dcache_range(paddr, paddr + size);
                                      ^
   arch/hexagon/kernel/dma.c:24:36: error: use of undeclared identifier 'paddr'
           hexagon_flush_dcache_range(paddr, paddr + size);
                                             ^
   6 warnings and 5 errors generated.


vim +/paddr +19 arch/hexagon/kernel/dma.c

    16	
    17	static inline void arch_dma_cache_inv(phys_addr_t start, size_t size)
    18	{
  > 19		hexagon_inv_dcache_range(paddr, paddr + size);
    20	}
    21	
    22	static inline void arch_dma_cache_wback_inv(phys_addr_t start, size_t size)
    23	{
  > 24		hexagon_flush_dcache_range(paddr, paddr + size);
    25	}
    26	

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

                 reply	other threads:[~2023-03-24 15:23 UTC|newest]

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