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Message-ID: <202510190117.rUh1e4k6-lkp@intel.com>
Date: Sun, 19 Oct 2025 01:19:16 +0800
From: kernel test robot <lkp@...el.com>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>
Cc: oe-kbuild-all@...ts.linux.dev, Masami Hiramatsu <mhiramat@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] tracing: Allow tracer to add more than 32 options
Hi Masami,
kernel test robot noticed the following build warnings:
[auto build test WARNING on trace/for-next]
[also build test WARNING on linus/master v6.18-rc1 next-20251017]
[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/Masami-Hiramatsu-Google/tracing-Allow-tracer-to-add-more-than-32-options/20251018-004104
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/176071774097.175601.10233017390618260565.stgit%40devnote2
patch subject: [PATCH v4 1/2] tracing: Allow tracer to add more than 32 options
config: arm-randconfig-r112-20251018 (https://download.01.org/0day-ci/archive/20251019/202510190117.rUh1e4k6-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 754ebc6ebb9fb9fbee7aef33478c74ea74949853)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251019/202510190117.rUh1e4k6-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202510190117.rUh1e4k6-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
kernel/trace/ftrace.c: note: in included file (through kernel/trace/trace_output.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/ftrace.c:1501:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/ftrace.c:1501:9: sparse: struct ftrace_hash [noderef] __rcu *
kernel/trace/ftrace.c:1501:9: sparse: struct ftrace_hash *
kernel/trace/ftrace.c:7839:36: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/ftrace.c:7839:36: sparse: struct ftrace_ops [noderef] __rcu *
kernel/trace/ftrace.c:7839:36: sparse: struct ftrace_ops *
--
kernel/trace/trace_functions.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_printk.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_preemptirq.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_stat.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/pid_list.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_stack.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_output.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace_output.c:423:34: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_ADDR'
kernel/trace/trace_output.c:436:48: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
kernel/trace/trace_output.c:438:25: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_ADDR'
kernel/trace/trace_output.c:572:51: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/trace_output.c:639:31: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace_output.c:650:31: sparse: sparse: undefined identifier 'TRACE_ITER_IRQ_INFO'
kernel/trace/trace_output.c:664:52: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/trace_output.c:1130:22: sparse: sparse: undefined identifier 'TRACE_ITER_PRINT_PARENT'
kernel/trace/trace_output.c:1420:31: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_USEROBJ'
--
kernel/trace/trace_nop.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_irqsoff.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace_irqsoff.c:492:62: sparse: sparse: undefined identifier 'TRACE_ITER_FUNCTION'
kernel/trace/trace_irqsoff.c:521:22: sparse: sparse: undefined identifier 'TRACE_ITER_FUNCTION'
kernel/trace/trace_irqsoff.c:588:29: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace_irqsoff.c:589:29: sparse: sparse: undefined identifier 'TRACE_ITER_LATENCY_FMT'
kernel/trace/trace_irqsoff.c:591:29: sparse: sparse: undefined identifier 'TRACE_ITER_PAUSE_ON_TRACE'
kernel/trace/trace_irqsoff.c:611:37: sparse: sparse: undefined identifier 'TRACE_ITER_LATENCY_FMT'
kernel/trace/trace_irqsoff.c:612:43: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace_irqsoff.c:613:39: sparse: sparse: undefined identifier 'TRACE_ITER_PAUSE_ON_TRACE'
kernel/trace/trace_irqsoff.c:617:29: sparse: sparse: undefined identifier 'TRACE_ITER_LATENCY_FMT'
kernel/trace/trace_irqsoff.c:618:29: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace_irqsoff.c:619:29: sparse: sparse: undefined identifier 'TRACE_ITER_PAUSE_ON_TRACE'
--
kernel/trace/trace_sched_switch.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_branch.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_export.c: note: in included file (through kernel/trace/trace_output.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_dynevent.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/ring_buffer.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_boot.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/blktrace.c: note: in included file (through kernel/trace/trace_output.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/blktrace.c:1455:43: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/blktrace.c:1520:45: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/blktrace.c:1522:44: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
--
kernel/trace/trace_kdb.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace_kdb.c:34:29: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_USEROBJ'
--
kernel/trace/trace_kprobe.c: note: in included file (through kernel/trace/trace_dynevent.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace_kprobe.c:1587:53: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
kernel/trace/trace_kprobe.c:1617:57: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
kernel/trace/trace_kprobe.c:1622:56: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
--
kernel/trace/trace_events_trigger.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_osnoise.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_probe.c: note: in included file (through kernel/trace/trace_probe.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_events_filter.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
--
kernel/trace/trace_events.c: note: in included file (through kernel/trace/trace_output.h):
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace_events.c:848:47: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_CMD'
kernel/trace/trace_events.c:854:47: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
--
kernel/trace/trace.c: note: in included file:
>> kernel/trace/trace.h:1427:27: sparse: sparse: missing identifier in declaration
kernel/trace/trace.h:1427:27: sparse: sparse: Expected ; at the end of type declaration
kernel/trace/trace.h:1427:27: sparse: sparse: got :
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_FUNCTION'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_PRINT_PARENT'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_ANNOTATE'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_CMD'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_IRQ_INFO'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_MARKERS'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_HASH_PTR'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:537:24: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:561:39: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:563:28: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:576:36: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:584:29: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:1142:33: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:1208:33: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:3487:33: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:3524:43: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:3794:50: sparse: sparse: undefined identifier 'TRACE_ITER_HASH_PTR'
kernel/trace/trace.c:4116:29: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace.c:4127:29: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace.c:4146:63: sparse: sparse: undefined identifier 'TRACE_ITER_PRINT_PARENT'
kernel/trace/trace.c:4146:63: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
kernel/trace/trace.c:4146:63: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_ADDR'
kernel/trace/trace.c:4200:33: sparse: sparse: undefined identifier 'TRACE_ITER_ANNOTATE'
kernel/trace/trace.c:4226:54: sparse: sparse: undefined identifier 'TRACE_ITER_PRINT_PARENT'
kernel/trace/trace.c:4226:54: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_OFFSET'
kernel/trace/trace.c:4226:54: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_ADDR'
kernel/trace/trace.c:4236:31: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:4247:39: sparse: sparse: undefined identifier 'TRACE_ITER_FIELDS'
kernel/trace/trace.c:4275:31: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:4301:31: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:4330:31: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:4401:39: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:4406:39: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:4411:39: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:4415:27: sparse: sparse: undefined identifier 'TRACE_ITER_BIN'
kernel/trace/trace.c:4418:27: sparse: sparse: undefined identifier 'TRACE_ITER_HEX'
kernel/trace/trace.c:4421:27: sparse: sparse: undefined identifier 'TRACE_ITER_RAW'
kernel/trace/trace.c:4439:33: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/trace.c:4449:29: sparse: sparse: undefined identifier 'TRACE_ITER_CONTEXT_INFO'
kernel/trace/trace.c:4457:37: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/trace.c:4460:37: sparse: sparse: undefined identifier 'TRACE_ITER_VERBOSE'
kernel/trace/trace.c:4461:43: sparse: sparse: undefined identifier 'TRACE_ITER_IRQ_INFO'
kernel/trace/trace.c:4685:51: sparse: sparse: undefined identifier 'TRACE_ITER_PAUSE_ON_TRACE'
kernel/trace/trace.c:4885:44: sparse: sparse: undefined identifier 'TRACE_ITER_LATENCY_FMT'
kernel/trace/trace.c:5212:40: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace.c:5220:22: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace.c:5235:21: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:5254:21: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:5262:21: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_CMD'
kernel/trace/trace.c:5265:21: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace.c:5268:45: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_TGID'
kernel/trace/trace.c:5275:21: sparse: sparse: undefined identifier 'TRACE_ITER_EVENT_FORK'
kernel/trace/trace.c:5278:21: sparse: sparse: undefined identifier 'TRACE_ITER_FUNC_FORK'
kernel/trace/trace.c:5281:21: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace.c:5288:21: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:6548:31: sparse: sparse: undefined identifier 'TRACE_ITER_LATENCY_FMT'
kernel/trace/trace.c:6609:31: sparse: sparse: undefined identifier 'TRACE_ITER_BLOCK'
kernel/trace/trace.c:7161:31: sparse: sparse: undefined identifier 'TRACE_ITER_STOP_ON_FREE'
kernel/trace/trace.c:7264:33: sparse: sparse: undefined identifier 'TRACE_ITER_MARKERS'
kernel/trace/trace.c:7345:33: sparse: sparse: undefined identifier 'TRACE_ITER_MARKERS'
kernel/trace/trace.c:9332:37: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK'
kernel/trace/trace.c:9332:37: sparse: sparse: undefined identifier 'TRACE_ITER_PRINTK_MSGONLY'
kernel/trace/trace.c:9332:37: sparse: sparse: undefined identifier 'TRACE_ITER_RECORD_CMD'
kernel/trace/trace.c:9655:38: sparse: sparse: undefined identifier 'TRACE_ITER_OVERWRITE'
kernel/trace/trace.c:9848:55: sparse: sparse: undefined identifier 'TRACE_ITER_EVENT_FORK'
kernel/trace/trace.c:9848:55: sparse: sparse: undefined identifier 'TRACE_ITER_FUNC_FORK'
kernel/trace/trace.c:9848:55: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:9848:55: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:10017:32: sparse: sparse: undefined identifier 'TRACE_ITER_EVENT_FORK'
kernel/trace/trace.c:10017:32: sparse: sparse: undefined identifier 'TRACE_ITER_FUNC_FORK'
kernel/trace/trace.c:10017:32: sparse: sparse: undefined identifier 'TRACE_ITER_TRACE_PRINTK'
kernel/trace/trace.c:10017:32: sparse: sparse: undefined identifier 'TRACE_ITER_COPY_MARKER'
kernel/trace/trace.c:10609:41: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_USEROBJ'
kernel/trace/trace.c:10612:29: sparse: sparse: undefined identifier 'TRACE_ITER_SYM_USEROBJ'
kernel/trace/trace.c:454:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/trace.c:454:9: sparse: struct trace_export [noderef] __rcu *
kernel/trace/trace.c:454:9: sparse: struct trace_export *
kernel/trace/trace.c:469:9: sparse: sparse: incompatible types in comparison expression (different address spaces):
kernel/trace/trace.c:469:9: sparse: struct trace_export [noderef] __rcu *
kernel/trace/trace.c:469:9: sparse: struct trace_export *
kernel/trace/trace.c:3081:33: sparse: sparse: undefined identifier 'TRACE_ITER_STACKTRACE'
vim +1427 kernel/trace/trace.h
1426
> 1427 enum trace_iterator_flags : uint64_t { TRACE_FLAGS };
1428
--
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