[mhiramat:topic/fprobe-event-ext 7/11] kernel/trace/trace_probe.c:647:9: error: incompatible pointer to integer conversion returning 'void *' from a function with result type 'int'

[mhiramat:topic/fprobe-event-ext 7/11] kernel/trace/trace_probe.c:647:9: error: incompatible pointer to integer conversion returning 'void *' from a function with result type 'int'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mhiramat/linux.git topic/fprobe-event-ext
head:   e4bb6f2230fbe828dad040af0befb139a5a5733b
commit: 33d45869bbad8c03d268d0634be77d860bbbc611 [7/11] tracing/probes: Support BTF field access from $retval
config: arm64-randconfig-r023-20230726 (https://download.01.org/0day-ci/archive/20230727/202307270746.hoJf8GGv-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230727/202307270746.hoJf8GGv-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307270746.hoJf8GGv-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/trace/trace_probe.c:647:9: error: incompatible pointer to integer conversion returning 'void *' from a function with result type 'int' [-Wint-conversion]
     647 |         return ERR_PTR(-EOPNOTSUPP);
         |                ^~~~~~~~~~~~~~~~~~~~
   1 error generated.


vim +647 kernel/trace/trace_probe.c

b576e09701c7d0 Masami Hiramatsu (Google  2023-06-06  644) 
33d45869bbad8c Masami Hiramatsu (Google  2023-07-17  645) static int query_btf_context(struct traceprobe_parse_context *ctx)
18b1e870a49671 Masami Hiramatsu (Google  2023-06-06  646) {
18b1e870a49671 Masami Hiramatsu (Google  2023-06-06 @647) 	return ERR_PTR(-EOPNOTSUPP);
18b1e870a49671 Masami Hiramatsu (Google  2023-06-06  648) }
18b1e870a49671 Masami Hiramatsu (Google  2023-06-06  649) 

:::::: The code at line 647 was first introduced by commit
:::::: 18b1e870a49671745c31434b18bcfdd6f20cb6a1 tracing/probes: Add $arg* meta argument for all function args

:::::: TO: Masami Hiramatsu (Google) <mhiramat@kernel.org>
:::::: CC: Masami Hiramatsu (Google) <mhiramat@kernel.org>

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https://github.com/intel/lkp-tests/wiki