[ast-bpf:relo_core 2/11] tools/lib/bpf/relo_core.c:50:6: error: no previous prototype for 'libbpf_print'

From: kernel test robot
Date: Thu Oct 14 2021 - 20:09:01 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf.git relo_core
head: f19d8aee9c6849dbfd77bc472b7b5c9bb28f329f
commit: 96649f75bfb209c3562106becb7bed3e37b05c82 [2/11] bpf: Prepare relo_core.c for kernel duty.
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
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://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf.git/commit/?id=96649f75bfb209c3562106becb7bed3e37b05c82
git remote add ast-bpf https://git.kernel.org/pub/scm/linux/kernel/git/ast/bpf.git
git fetch --no-tags ast-bpf relo_core
git checkout 96649f75bfb209c3562106becb7bed3e37b05c82
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=m68k

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

All errors (new ones prefixed by >>):

>> tools/lib/bpf/relo_core.c:50:6: error: no previous prototype for 'libbpf_print' [-Werror=missing-prototypes]
50 | void libbpf_print(enum libbpf_print_level level,
| ^~~~~~~~~~~~
tools/lib/bpf/relo_core.c: In function 'bpf_core_apply_relo_insn':
>> tools/lib/bpf/relo_core.c:1363:1: error: the frame size of 1136 bytes is larger than 1024 bytes [-Werror=frame-larger-than=]
1363 | }
| ^
cc1: all warnings being treated as errors


vim +/libbpf_print +50 tools/lib/bpf/relo_core.c

43
44 enum libbpf_print_level {
45 LIBBPF_WARN,
46 LIBBPF_INFO,
47 LIBBPF_DEBUG,
48 };
49 __attribute__((format(printf, 2, 3)))
> 50 void libbpf_print(enum libbpf_print_level level,
51 const char *format, ...)
52 {
53 va_list args;
54
55 va_start(args, format);
56 vprintk(format, args);
57 va_end(args);
58 }
59 #define __pr(level, fmt, ...) \
60 do { \
61 libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); \
62 } while (0)
63

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

Attachment: .config.gz
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