tree:   https://github.com/ammarfaizi2/linux-block stable/linux-stable-rc/queue/6.0
head:   bd551cbc62ced5f513fb2ca4ad2df2d65fef04a9
commit: ef6f162ebca61cc906cdae48458fa53e52e253b3 [235/265] bpf: Convert BPF_DISPATCHER to use static_call() (not ftrace)
config: i386-randconfig-a013-20221128
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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/ammarfaizi2/linux-block/commit/ef6f162ebca61cc906cdae48458fa53e52e253b3
        git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
        git fetch --no-tags ammarfaizi2-block stable/linux-stable-rc/queue/6.0
        git checkout ef6f162ebca61cc906cdae48458fa53e52e253b3
        # 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=i386 SHELL=/bin/bash kernel/bpf/

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

All warnings (new ones prefixed by >>):

>> kernel/bpf/dispatcher.c:126:33: warning: pointer type mismatch ('void *' and 'unsigned int (*)(const void *, const struct bpf_insn *, bpf_func_t)' (aka 'unsigned int (*)(const void *, const struct bpf_insn *, unsigned int (*)(const void *, const struct bpf_insn *))')) [-Wpointer-type-mismatch]
           __BPF_DISPATCHER_UPDATE(d, new ?: &bpf_dispatcher_nop_func);
                                      ~~~ ^  ~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/bpf.h:938:54: note: expanded from macro '__BPF_DISPATCHER_UPDATE'
           __static_call_update((_d)->sc_key, (_d)->sc_tramp, (_new))
                                                               ^~~~
   1 warning generated.


vim +126 kernel/bpf/dispatcher.c

   105	
   106	static void bpf_dispatcher_update(struct bpf_dispatcher *d, int prev_num_progs)
   107	{
   108		void *new, *tmp;
   109		u32 noff = 0;
   110	
   111		if (prev_num_progs)
   112			noff = d->image_off ^ (PAGE_SIZE / 2);
   113	
   114		new = d->num_progs ? d->image + noff : NULL;
   115		tmp = d->num_progs ? d->rw_image + noff : NULL;
   116		if (new) {
   117			/* Prepare the dispatcher in d->rw_image. Then use
   118			 * bpf_arch_text_copy to update d->image, which is RO+X.
   119			 */
   120			if (bpf_dispatcher_prepare(d, new, tmp))
   121				return;
   122			if (IS_ERR(bpf_arch_text_copy(new, tmp, PAGE_SIZE / 2)))
   123				return;
   124		}
   125	
 > 126		__BPF_DISPATCHER_UPDATE(d, new ?: &bpf_dispatcher_nop_func);
   127	
   128		if (new)
   129			d->image_off = noff;
   130	}
   131	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp