Hi "André,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on arm64/for-next/core]
[also build test WARNING on linus/master v5.13-rc4]
[cannot apply to tip/locking/core tip/x86/asm next-20210603]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Andr-Almeida/Add-futex2-syscalls/20210604-040253
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
config: powerpc-randconfig-r005-20210603 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d8e0ae9a76a62bdc6117630d59bf9967ac9bb4ea)
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
        # install powerpc cross compiling tool for clang build
        # apt-get install binutils-powerpc-linux-gnu
        # https://github.com/0day-ci/linux/commit/f4cbf5195fceb172af57142f2cde2e230c9d8b82
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Andr-Almeida/Add-futex2-syscalls/20210604-040253
        git checkout f4cbf5195fceb172af57142f2cde2e230c9d8b82
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> <stdin>:1544:2: warning: syscall futex_wait not implemented [-W#warnings]
   #warning syscall futex_wait not implemented
    ^
>> <stdin>:1547:2: warning: syscall futex_wake not implemented [-W#warnings]
   #warning syscall futex_wake not implemented
    ^
   2 warnings generated.
--
   In file included from kernel/bounds.c:10:
   In file included from include/linux/page-flags.h:10:
   In file included from include/linux/bug.h:5:
   In file included from arch/powerpc/include/asm/bug.h:109:
   In file included from include/asm-generic/bug.h:20:
   In file included from include/linux/kernel.h:12:
   In file included from include/linux/bitops.h:32:
   In file included from arch/powerpc/include/asm/bitops.h:62:
   arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
   #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
           ^
   <built-in>:309:9: note: previous definition is here
   #define __lwsync __builtin_ppc_lwsync
           ^
   1 warning generated.
   In file included from arch/powerpc/kernel/asm-offsets.c:14:
   In file included from include/linux/compat.h:14:
   In file included from include/linux/sem.h:5:
   In file included from include/uapi/linux/sem.h:5:
   In file included from include/linux/ipc.h:5:
   In file included from include/linux/spinlock.h:51:
   In file included from include/linux/preempt.h:11:
   In file included from include/linux/list.h:9:
   In file included from include/linux/kernel.h:12:
   In file included from include/linux/bitops.h:32:
   In file included from arch/powerpc/include/asm/bitops.h:62:
   arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
   #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
           ^
   <built-in>:309:9: note: previous definition is here
   #define __lwsync __builtin_ppc_lwsync
           ^
   1 warning generated.
>> <stdin>:1544:2: warning: syscall futex_wait not implemented [-W#warnings]
   #warning syscall futex_wait not implemented
    ^
>> <stdin>:1547:2: warning: syscall futex_wake not implemented [-W#warnings]
   #warning syscall futex_wake not implemented
    ^
   2 warnings generated.
   In file included from <built-in>:4:
   In file included from lib/vdso/gettimeofday.c:5:
   In file included from include/vdso/datapage.h:137:
   In file included from arch/powerpc/include/asm/vdso/gettimeofday.h:5:
   In file included from arch/powerpc/include/asm/page.h:11:
   In file included from include/linux/kernel.h:12:
   In file included from include/linux/bitops.h:32:
   In file included from arch/powerpc/include/asm/bitops.h:62:
   arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
   #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
           ^
   <built-in>:308:9: note: previous definition is here
   #define __lwsync __builtin_ppc_lwsync
           ^
   1 warning generated.
   In file included from <built-in>:4:
   In file included from lib/vdso/gettimeofday.c:5:
   In file included from include/vdso/datapage.h:137:
   In file included from arch/powerpc/include/asm/vdso/gettimeofday.h:5:
   In file included from arch/powerpc/include/asm/page.h:11:
   In file included from include/linux/kernel.h:12:
   In file included from include/linux/bitops.h:32:
   In file included from arch/powerpc/include/asm/bitops.h:62:
   arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
   #define __lwsync()      __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
           ^
   <built-in>:309:9: note: previous definition is here
   #define __lwsync __builtin_ppc_lwsync
           ^
   1 warning generated.

---
0-DAY CI Kernel Test Service, Intel Corporation
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