[esmil:d1-6.11.y 31/47] sound/soc/sunxi/sun20i-codec.c:427:14: warning: duplicate 'const' declaration specifier

[esmil:d1-6.11.y 31/47] sound/soc/sunxi/sun20i-codec.c:427:14: warning: duplicate 'const' declaration specifier

[kernel test robot]

tree:   https://github.com/esmil/linux d1-6.11.y
head:   d99b769766ff1b1ced32d8d279d28e581e02fa9d
commit: a66c0350f140f50f26d79d84ff42c898f36e8bc9 [31/47] ASoC: sun20i-codec: New driver for D1 internal codec
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20240926/202409262017.8tZPxDjm-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 7773243d9916f98ba0ffce0c3a960e4aa9f03e81)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240926/202409262017.8tZPxDjm-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/202409262017.8tZPxDjm-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from sound/soc/sunxi/sun20i-codec.c:4:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         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'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from sound/soc/sunxi/sun20i-codec.c:4:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         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'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from sound/soc/sunxi/sun20i-codec.c:4:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   In file included from sound/soc/sunxi/sun20i-codec.c:11:
   In file included from include/sound/dmaengine_pcm.h:10:
   In file included from include/sound/pcm.h:15:
   In file included from include/linux/mm.h:2232:
   include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     517 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
>> sound/soc/sunxi/sun20i-codec.c:427:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
     427 | static const SOC_ENUM_DOUBLE_DECL(sun20i_codec_line_out_mode_enum,
         |              ^
   include/sound/soc.h:406:2: note: expanded from macro 'SOC_ENUM_DOUBLE_DECL'
     406 |         const struct soc_enum name = SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, \
         |         ^
   8 warnings generated.


vim +/const +427 sound/soc/sunxi/sun20i-codec.c

   426	
 > 427	static const SOC_ENUM_DOUBLE_DECL(sun20i_codec_line_out_mode_enum,
   428					  SUN20I_CODEC_DAC,
   429					  SUN20I_CODEC_DAC_LINEOUTL_DIFFEN,
   430					  SUN20I_CODEC_DAC_LINEOUTR_DIFFEN,
   431					  sun20i_codec_line_out_mode_enum_text);
   432	

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