[arm64:devel/kmalloc-minalign 18/18] arch/sh/include/asm/page.h:181: warning: "ARCH_DMA_MINALIGN" redefined

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git devel/kmalloc-minalign
head:   e5bbe79231baf5cad690c6fc9de3910ad14a2aa6
commit: e5bbe79231baf5cad690c6fc9de3910ad14a2aa6 [18/18] fixup! mm/slab: Decouple ARCH_KMALLOC_MINALIGN from ARCH_DMA_MINALIGN
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20230610/202306101810.JwfW3YwQ-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        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/arm64/linux.git/commit/?id=e5bbe79231baf5cad690c6fc9de3910ad14a2aa6
        git remote add arm64 https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
        git fetch --no-tags arm64 devel/kmalloc-minalign
        git checkout e5bbe79231baf5cad690c6fc9de3910ad14a2aa6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sh olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash fs/efs/

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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306101810.JwfW3YwQ-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from include/linux/mm_types_task.h:16,
                    from include/linux/mm_types.h:5,
                    from include/linux/buildid.h:5,
                    from include/linux/module.h:14,
                    from fs/efs/super.c:11:
>> arch/sh/include/asm/page.h:181: warning: "ARCH_DMA_MINALIGN" redefined
     181 | #define ARCH_DMA_MINALIGN       L1_CACHE_BYTES
         | 
   In file included from include/linux/time.h:5,
                    from include/linux/stat.h:19,
                    from include/linux/module.h:13:
   include/linux/cache.h:104: note: this is the location of the previous definition
     104 | #define ARCH_DMA_MINALIGN __alignof__(unsigned long long)
         | 
   In file included from fs/efs/super.c:18:
   fs/efs/efs.h:22:19: warning: 'cprt' defined but not used [-Wunused-const-variable=]
      22 | static const char cprt[] = "EFS: "EFS_VERSION" - (c) 1999 Al Smith <Al.Smith at aeschi.ch.eu.org>";
         |                   ^~~~


vim +/ARCH_DMA_MINALIGN +181 arch/sh/include/asm/page.h

fd4fd5aac12828 include/asm-sh/page.h      Stephen Rothwell 2005-09-03  176  
cbd2d9d8fcd9d2 include/asm-sh/page.h      Paul Mundt       2007-06-04  177  /*
66d485b45a5493 include/asm-sh/page.h      Paul Mundt       2007-11-27  178   * Some drivers need to perform DMA into kmalloc'ed buffers
66d485b45a5493 include/asm-sh/page.h      Paul Mundt       2007-11-27  179   * and so we have to increase the kmalloc minalign for this.
cbd2d9d8fcd9d2 include/asm-sh/page.h      Paul Mundt       2007-06-04  180   */
a6eb9fe105d5de arch/sh/include/asm/page.h FUJITA Tomonori  2010-08-10 @181  #define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
01fed9311ab8a7 include/asm-sh/page.h      Paul Mundt       2007-11-10  182  

:::::: The code at line 181 was first introduced by commit
:::::: a6eb9fe105d5de0053b261148cee56c94b4720ca dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN

:::::: TO: FUJITA Tomonori <fujita.tomonori at lab.ntt.co.jp>
:::::: CC: Linus Torvalds <torvalds at linux-foundation.org>

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https://github.com/intel/lkp-tests/wiki