[linux-next:master 10107/10661] libbpf.c:4954:8: error: variable 'i' set but not used

[linux-next:master 10107/10661] libbpf.c:4954:8: error: variable 'i' set but not used

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   3bf222d317a20170ee17f082626c1e0f83537e13
commit: 0087a681fa8c22f719a567317e8f8f894d734b9c [10107/10661] libbpf: Automatically fix up BPF_MAP_TYPE_RINGBUF size, if necessary
config: hexagon-randconfig-r036-20220510 (https://download.01.org/0day-ci/archive/20220511/202205110646.qxnrqHzi-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 18dd123c56754edf62c7042dcf23185c3727610f)
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://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=0087a681fa8c22f719a567317e8f8f894d734b9c
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 0087a681fa8c22f719a567317e8f8f894d734b9c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon prepare

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

All errors (new ones prefixed by >>):

   scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
   scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
   scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
>> libbpf.c:4954:8: error: variable 'i' set but not used [-Werror,-Wunused-but-set-variable]
           __u32 i, mul;
                 ^
   1 error generated.
   make[5]: *** [tools/build/Makefile.build:96: tools/bpf/resolve_btfids/libbpf/staticobjs/libbpf.o] Error 1
   make[5]: *** Waiting for unfinished jobs....
   make[4]: *** [Makefile:157: tools/bpf/resolve_btfids/libbpf/staticobjs/libbpf-in.o] Error 2
   make[3]: *** [Makefile:55: tools/bpf/resolve_btfids//libbpf/libbpf.a] Error 2
   make[2]: *** [Makefile:72: bpf/resolve_btfids] Error 2
   make[1]: *** [Makefile:1337: tools/bpf/resolve_btfids] Error 2
   <stdin>:1517:2: warning: syscall clone3 not implemented [-W#warnings]
   #warning syscall clone3 not implemented
    ^
   1 warning generated.
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:219: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

-- 
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https://01.org/lkp