include/arm64/processor.h:194:9: warning: "dma_wmb" redefined

include/arm64/processor.h:194:9: warning: "dma_wmb" redefined

[kernel test robot]

:::::: 
:::::: Manual check reason: "low confidence bisect report"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Jason Gunthorpe <jgg@nvidia.com>
CC: 0day robot <lkp@intel.com>
CC: David Matlack <dmatlack@google.com>

tree:   https://github.com/intel-lab-lkp/linux/commits/Jason-Gunthorpe/net-mlx5-Add-IFC-structures-for-CQE-and-WQE/20260717-052940
head:   7fabb466403102b484426d268d4c8f880947b202
commit: e94763f311902b31b644d9934178452e76132cce selftests: Add additional kernel functions to tools/include/
date:   6 hours ago
:::::: branch date: 6 hours ago
:::::: commit date: 6 hours ago
config: arm64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260717/202607170503.MCC6Fa20-lkp@intel.com/config)
compiler: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260717/202607170503.MCC6Fa20-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/r/202607170503.MCC6Fa20-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from dirty_log_test.c:22:
>> include/arm64/processor.h:194:9: warning: "dma_wmb" redefined
     194 | #define dma_wmb()       dmb(oshst)
         |         ^~~~~~~
   In file included from tools/testing/selftests/../../../tools/include/asm/barrier.h:8,
                    from dirty_log_test.c:17:
   tools/testing/selftests/../../../tools/include/asm/../../arch/arm64/include/asm/barrier.h:29:9: note: this is the location of the previous definition
      29 | #define dma_wmb()       asm volatile("dmb oshst" ::: "memory")
         |         ^~~~~~~
>> include/arm64/processor.h:197:9: warning: "dma_rmb" redefined
     197 | #define dma_rmb()       dmb(oshld)
         |         ^~~~~~~
   tools/testing/selftests/../../../tools/include/asm/../../arch/arm64/include/asm/barrier.h:28:9: note: this is the location of the previous definition
      28 | #define dma_rmb()       asm volatile("dmb oshld" ::: "memory")
         |         ^~~~~~~
   cc1: note: unrecognized command-line option '-Wno-gnu-variable-sized-type-not-at-end' may have been intended to silence earlier diagnostics
--
   In file included from tools/testing/selftests/../../../tools/include/asm/barrier.h:8,
                    from include/arm64/gic_v5.h:6,
                    from arm64/no-vgic.c:12:
>> tools/testing/selftests/../../../tools/include/asm/../../arch/arm64/include/asm/barrier.h:28:9: warning: "dma_rmb" redefined
      28 | #define dma_rmb()       asm volatile("dmb oshld" ::: "memory")
         |         ^~~~~~~
   In file included from arm64/no-vgic.c:10:
   include/arm64/processor.h:197:9: note: this is the location of the previous definition
     197 | #define dma_rmb()       dmb(oshld)
         |         ^~~~~~~
>> tools/testing/selftests/../../../tools/include/asm/../../arch/arm64/include/asm/barrier.h:29:9: warning: "dma_wmb" redefined
      29 | #define dma_wmb()       asm volatile("dmb oshst" ::: "memory")
         |         ^~~~~~~
   include/arm64/processor.h:194:9: note: this is the location of the previous definition
     194 | #define dma_wmb()       dmb(oshst)
         |         ^~~~~~~
   cc1: note: unrecognized command-line option '-Wno-gnu-variable-sized-type-not-at-end' may have been intended to silence earlier diagnostics

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