* Re: [POC][RFC][PATCH 1/3] tracing: Add perf events
[not found] <20251118003531.644484343@kernel.org>
@ 2025-11-20 9:01 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-11-20 9:01 UTC (permalink / raw)
To: Steven Rostedt; +Cc: llvm, oe-kbuild-all
Hi Steven,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next]
[also build test ERROR on next-20251119]
[cannot apply to linus/master v6.18-rc6]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Steven-Rostedt/tracing-Add-perf-events/20251118-083721
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/20251118003531.644484343%40kernel.org
patch subject: [POC][RFC][PATCH 1/3] tracing: Add perf events
config: s390-randconfig-001-20251120 (https://download.01.org/0day-ci/archive/20251120/202511201858.3pMxCiBz-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 0bba1e76581bad04e7d7f09f5115ae5e2989e0d9)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251120/202511201858.3pMxCiBz-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/202511201858.3pMxCiBz-lkp@intel.com/
All errors (new ones prefixed by >>):
>> kernel/trace/trace_output.c:1681:18: error: incomplete definition of type 'struct perf_event_entry'
1681 | for (val = field->values; val < end; val++) {
| ~~~~~^
kernel/trace/trace_output.c:1672:9: note: forward declaration of 'struct perf_event_entry'
1672 | struct perf_event_entry *field;
| ^
kernel/trace/trace_output.c:1682:19: error: incomplete definition of type 'struct perf_event_entry'
1682 | if (val != field->values)
| ~~~~~^
kernel/trace/trace_output.c:1672:9: note: forward declaration of 'struct perf_event_entry'
1672 | struct perf_event_entry *field;
| ^
>> kernel/trace/trace_output.c:1684:11: error: call to undeclared function 'PERF_TRACE_VALUE'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1684 | value = PERF_TRACE_VALUE(*val);
| ^
>> kernel/trace/trace_output.c:1685:11: error: call to undeclared function 'PERF_TRACE_TYPE'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
1685 | switch (PERF_TRACE_TYPE(*val)) {
| ^
>> kernel/trace/trace_output.c:1686:8: error: use of undeclared identifier 'PERF_TRACE_CYCLES'; did you mean 'PERF_TRACE_TYPE'?
1686 | case PERF_TRACE_CYCLES:
| ^~~~~~~~~~~~~~~~~
| PERF_TRACE_TYPE
kernel/trace/trace_output.c:1685:11: note: 'PERF_TRACE_TYPE' declared here
1685 | switch (PERF_TRACE_TYPE(*val)) {
| ^
>> kernel/trace/trace_output.c:1686:8: error: integer constant expression must have integer type, not 'int ()'
1686 | case PERF_TRACE_CYCLES:
| ^~~~~~~~~~~~~~~~~
>> kernel/trace/trace_output.c:1689:8: error: use of undeclared identifier 'PERF_TRACE_CACHE'; did you mean 'PERF_TRACE_VALUE'?
1689 | case PERF_TRACE_CACHE:
| ^~~~~~~~~~~~~~~~
| PERF_TRACE_VALUE
kernel/trace/trace_output.c:1684:11: note: 'PERF_TRACE_VALUE' declared here
1684 | value = PERF_TRACE_VALUE(*val);
| ^
kernel/trace/trace_output.c:1689:8: error: integer constant expression must have integer type, not 'int ()'
1689 | case PERF_TRACE_CACHE:
| ^~~~~~~~~~~~~~~~
kernel/trace/trace_output.c:1714:18: error: incomplete definition of type 'struct perf_event_entry'
1714 | for (val = field->values; val < end; val++) {
| ~~~~~^
kernel/trace/trace_output.c:1705:9: note: forward declaration of 'struct perf_event_entry'
1705 | struct perf_event_entry *field;
| ^
kernel/trace/trace_output.c:1715:19: error: incomplete definition of type 'struct perf_event_entry'
1715 | if (val != field->values)
| ~~~~~^
kernel/trace/trace_output.c:1705:9: note: forward declaration of 'struct perf_event_entry'
1705 | struct perf_event_entry *field;
| ^
10 errors generated.
vim +1681 kernel/trace/trace_output.c
1665
1666 static enum print_line_t
1667 trace_perf_event_print(struct trace_iterator *iter, int flags,
1668 struct trace_event *event)
1669 {
1670 struct trace_entry *entry = iter->ent;
1671 struct trace_seq *s = &iter->seq;
1672 struct perf_event_entry *field;
1673 u64 value;
1674 u64 *val;
1675 u64 *end;
1676
1677 end = (u64 *)((long)iter->ent + iter->ent_size);
1678
1679 trace_assign_type(field, entry);
1680
> 1681 for (val = field->values; val < end; val++) {
1682 if (val != field->values)
1683 trace_seq_putc(s, ' ');
> 1684 value = PERF_TRACE_VALUE(*val);
> 1685 switch (PERF_TRACE_TYPE(*val)) {
> 1686 case PERF_TRACE_CYCLES:
1687 trace_seq_printf(s, "cpu_cycles: %lld", value);
1688 break;
> 1689 case PERF_TRACE_CACHE:
1690 trace_seq_printf(s, "cache_misses: %lld", value);
1691 break;
1692 default:
1693 trace_seq_printf(s, "unkown(%d): %lld",
1694 (int)PERF_TRACE_TYPE(*val), value);
1695 }
1696 }
1697 trace_seq_putc(s, '\n');
1698 return trace_handle_return(s);
1699 }
1700
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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