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Subject[mingo-tip:sched/headers 408/2579] kernel/bpf/core.c:63:6: warning: no previous prototype for 'bpf_jit_dump'
tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers
head: 49e1ec6c70a6eb4b7de9250a455b8b63eb42afbe
commit: e4ad6815a1dd068fce426ddb025055ac7f698a29 [408/2579] headers/uninline: Uninline multi-use function: bpf_jit_dump()
config: x86_64-randconfig-a013 (https://download.01.org/0day-ci/archive/20220421/202204210436.0BDJbqN7-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=e4ad6815a1dd068fce426ddb025055ac7f698a29
git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
git fetch --no-tags mingo-tip sched/headers
git checkout e4ad6815a1dd068fce426ddb025055ac7f698a29
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/pci/ fs/crypto/ kernel/bpf/ lib/ net/ipv6/

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 >>):

>> kernel/bpf/core.c:63:6: warning: no previous prototype for 'bpf_jit_dump' [-Wmissing-prototypes]
63 | void bpf_jit_dump(unsigned int flen, unsigned int proglen, u32 pass, void *image)
| ^~~~~~~~~~~~
kernel/bpf/core.c:1655:12: warning: no previous prototype for 'bpf_probe_read_kernel' [-Wmissing-prototypes]
1655 | u64 __weak bpf_probe_read_kernel(void *dst, u32 size, const void *unsafe_ptr)
| ^~~~~~~~~~~~~~~~~~~~~


vim +/bpf_jit_dump +63 kernel/bpf/core.c

62
> 63 void bpf_jit_dump(unsigned int flen, unsigned int proglen, u32 pass, void *image)
64 {
65 pr_err("flen=%u proglen=%u pass=%u image=%pK from=%s pid=%d\n", flen,
66 proglen, pass, image, current->comm, task_pid_nr(current));
67
68 if (image)
69 print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_OFFSET,
70 16, 1, image, proglen, false);
71 }
72

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

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