[xlnx:xlnx_rebase_v5.10 735/1745] error: include/uapi/linux/xlnxsync.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier

[kernel test robot]

tree:   https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10
head:   cd1a972ed275ace731d851a8c88f575456262e75
commit: 442d80ac9360ef9596d85f3124d7c7fd5dd41a1a [735/1745] staging: xlnxsync: Add driver for Xilinx Synchronizer
config: nds32-defconfig (attached as .config)
compiler: nds32le-linux-gcc (GCC) 9.3.0
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
        # https://github.com/Xilinx/linux-xlnx/commit/442d80ac9360ef9596d85f3124d7c7fd5dd41a1a
        git remote add xlnx https://github.com/Xilinx/linux-xlnx
        git fetch --no-tags xlnx xlnx_rebase_v5.10
        git checkout 442d80ac9360ef9596d85f3124d7c7fd5dd41a1a
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 

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

Note: the xlnx/xlnx_rebase_v5.10 HEAD cd1a972ed275ace731d851a8c88f575456262e75 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

>> error: include/uapi/linux/xlnxsync.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
--
>> error: include/uapi/linux/xlnxsync.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xlnxsync.h] Error 1
   error: include/uapi/linux/xilinx-v4l2-events.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xilinx-v4l2-events.h] Error 1
   make[2]: Target '__headers' not remade because of errors.
   make[1]: *** [Makefile:1294: headers] Error 2
   make[1]: Target 'headers_install' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'headers_install' not remade because of errors.
--
>> error: include/uapi/linux/xlnxsync.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   error: include/uapi/linux/xilinx-v4l2-events.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xlnxsync.h] Error 1
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xilinx-v4l2-events.h] Error 1
   make[2]: Target '__headers' not remade because of errors.
   make[1]: *** [Makefile:1294: headers] Error 2
   <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
   make[1]: Target 'modules_prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'modules_prepare' not remade because of errors.
--
>> error: include/uapi/linux/xlnxsync.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xlnxsync.h] Error 1
   error: include/uapi/linux/xilinx-v4l2-events.h: missing "WITH Linux-syscall-note" for SPDX-License-Identifier
   make[2]: *** [scripts/Makefile.headersinst:63: usr/include/linux/xilinx-v4l2-events.h] Error 1
   make[2]: Target '__headers' not remade because of errors.
   make[1]: *** [Makefile:1294: headers] Error 2
   <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
   arch/nds32/kernel/vdso/gettimeofday.c:158:13: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
     158 | notrace int __vdso_clock_gettime(clockid_t clkid, struct __kernel_old_timespec *ts)
         |             ^~~~~~~~~~~~~~~~~~~~
   arch/nds32/kernel/vdso/gettimeofday.c:206:13: warning: no previous prototype for '__vdso_clock_getres' [-Wmissing-prototypes]
     206 | notrace int __vdso_clock_getres(clockid_t clk_id, struct __kernel_old_timespec *res)
         |             ^~~~~~~~~~~~~~~~~~~
   arch/nds32/kernel/vdso/gettimeofday.c:246:13: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
     246 | notrace int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
         |             ^~~~~~~~~~~~~~~~~~~
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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