[kbuild-all] [xilinx-xlnx:xlnx_rebase_v5.10 1566/1981] fs/pstore/zone.c:39: warning: expecting prototype for struct psz_head. Prototype was for struct psz_buffer instead

tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.10 head: 87ec9a2d98a7a7dfc98b57348a0ec310fd170e4b commit: d3328cb2dd0a2fb94a09587105c37299e296d4c6 [1566/1981] scripts: kernel-doc: validate kernel-doc markup with the actual names config: x86_64-randconfig-a011-20211214 (https://download.01.org/0day-ci/archive/20211215/202112150136.7UyCfGsC-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project b6a2ddb6c8ac29412b1361810972e15221fa021c) 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/d3328cb2dd0a2fb94a09587105c37... git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.10 git checkout d3328cb2dd0a2fb94a09587105c37299e296d4c6 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/pstore/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): vim +39 fs/pstore/zone.c d26c3321fe18dc WeiXiong Liao 2020-03-25 24 d26c3321fe18dc WeiXiong Liao 2020-03-25 25 /** d26c3321fe18dc WeiXiong Liao 2020-03-25 26 * struct psz_head - header of zone to flush to storage d26c3321fe18dc WeiXiong Liao 2020-03-25 27 * d26c3321fe18dc WeiXiong Liao 2020-03-25 28 * @sig: signature to indicate header (PSZ_SIG xor PSZONE-type value) d26c3321fe18dc WeiXiong Liao 2020-03-25 29 * @datalen: length of data in @data 0dc068265a1c59 WeiXiong Liao 2020-03-25 30 * @start: offset into @data where the beginning of the stored bytes begin d26c3321fe18dc WeiXiong Liao 2020-03-25 31 * @data: zone data. d26c3321fe18dc WeiXiong Liao 2020-03-25 32 */ d26c3321fe18dc WeiXiong Liao 2020-03-25 33 struct psz_buffer { d26c3321fe18dc WeiXiong Liao 2020-03-25 34 #define PSZ_SIG (0x43474244) /* DBGC */ d26c3321fe18dc WeiXiong Liao 2020-03-25 35 uint32_t sig; d26c3321fe18dc WeiXiong Liao 2020-03-25 36 atomic_t datalen; 0dc068265a1c59 WeiXiong Liao 2020-03-25 37 atomic_t start; d26c3321fe18dc WeiXiong Liao 2020-03-25 38 uint8_t data[]; d26c3321fe18dc WeiXiong Liao 2020-03-25 @39 }; d26c3321fe18dc WeiXiong Liao 2020-03-25 40 :::::: The code at line 39 was first introduced by commit :::::: d26c3321fe18dc74517dc1f518d584aa33b0a851 pstore/zone: Introduce common layer to manage storage zones :::::: TO: WeiXiong Liao <liaoweixiong(a)allwinnertech.com&gt; :::::: CC: Kees Cook <keescook(a)chromium.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org