[arm64:devel/kmalloc-minalign 18/18] include/linux/cache.h:104:38: error: missing binary operator before token "("

kernel test robot lkp at intel.com
Sat Jun 10 01:10:50 PDT 2023


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: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230610/202306101526.kiwBY0Xr-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build):
        # 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
        make W=1 O=build_dir ARCH=x86_64 olddefconfig
        make W=1 O=build_dir ARCH=x86_64 prepare

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/202306101526.kiwBY0Xr-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/x86/include/asm/current.h:9,
                    from arch/x86/include/asm/preempt.h:7,
                    from include/linux/preempt.h:78,
                    from include/linux/spinlock.h:56,
                    from include/linux/swait.h:7,
                    from include/linux/completion.h:12,
                    from include/linux/crypto.h:15,
                    from arch/x86/kernel/asm-offsets.c:9:
>> include/linux/cache.h:104:38: error: missing binary operator before token "("
     104 | #define ARCH_DMA_MINALIGN __alignof__(unsigned long long)
         |                                      ^
   include/linux/slab.h:239:39: note: in expansion of macro 'ARCH_DMA_MINALIGN'
     239 | #if defined(ARCH_HAS_DMA_MINALIGN) && ARCH_DMA_MINALIGN > 8 && \
         |                                       ^~~~~~~~~~~~~~~~~
   make[2]: *** [scripts/Makefile.build:114: arch/x86/kernel/asm-offsets.s] Error 1
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:1287: prepare0] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:226: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +104 include/linux/cache.h

   100	
   101	#ifdef ARCH_DMA_MINALIGN
   102	#define ARCH_HAS_DMA_MINALIGN
   103	#else
 > 104	#define ARCH_DMA_MINALIGN __alignof__(unsigned long long)
   105	#endif
   106	

-- 
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