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Message-ID: <202509230952.UvKzcDdq-lkp@intel.com>
Date: Tue, 23 Sep 2025 09:47:13 +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 v2 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 v6.17-rc7 next-20250922]
[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/20250922-204945
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/175854517136.353182.4018685864707176851.stgit%40devnote2
patch subject: [PATCH v2 1/2] tracing: Allow tracer to add more than 32 options
config: sh-randconfig-001-20250923 (https://download.01.org/0day-ci/archive/20250923/202509230952.UvKzcDdq-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250923/202509230952.UvKzcDdq-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/202509230952.UvKzcDdq-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from kernel/trace/fgraph.c:20:
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STACKTRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1351:17: note: in expansion of macro 'C'
1351 | C(STACKTRACE, "stacktrace")
| ^
kernel/trace/trace.h:1393:17: note: in expansion of macro 'STACK_FLAGS'
1393 | STACK_FLAGS \
| ^~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
>> kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_DISPLAY_GRAPH' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1326:17: note: in expansion of macro 'C'
1326 | C(DISPLAY_GRAPH, "display-graph")
| ^
kernel/trace/trace.h:1392:17: note: in expansion of macro 'FGRAPH_FLAGS'
1392 | FGRAPH_FLAGS \
| ^~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNC_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1341:17: note: in expansion of macro 'C'
1341 | C(FUNC_FORK, "function-fork")
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNCTION' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1340:17: note: in expansion of macro 'C'
1340 | C(FUNCTION, "function-trace") \
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_HASH_PTR' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1390:17: note: in expansion of macro 'C'
1390 | C(HASH_PTR, "hash-ptr") /* Print hashed pointer */ \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_PAUSE_ON_TRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1389:17: note: in expansion of macro 'C'
1389 | C(PAUSE_ON_TRACE, "pause-on-trace") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_COPY_MARKER' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1388:17: note: in expansion of macro 'C'
1388 | C(COPY_MARKER, "copy_trace_marker")\
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_TRACE_PRINTK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1387:17: note: in expansion of macro 'C'
1387 | C(TRACE_PRINTK, "trace_printk_dest") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_EVENT_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1386:17: note: in expansion of macro 'C'
1386 | C(EVENT_FORK, "event-fork") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_MARKERS' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1385:17: note: in expansion of macro 'C'
1385 | C(MARKERS, "markers") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_IRQ_INFO' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1384:17: note: in expansion of macro 'C'
1384 | C(IRQ_INFO, "irq-info") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STOP_ON_FREE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
--
In file included from kernel/trace/trace.c:58:
>> kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_DISPLAY_GRAPH' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1326:17: note: in expansion of macro 'C'
1326 | C(DISPLAY_GRAPH, "display-graph")
| ^
kernel/trace/trace.h:1392:17: note: in expansion of macro 'FGRAPH_FLAGS'
1392 | FGRAPH_FLAGS \
| ^~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_USERSTACKTRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1375:17: note: in expansion of macro 'C'
1375 | C(USERSTACKTRACE, "userstacktrace") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
{standard input}: Assembler messages:
{standard input}:6792: Error: offset to unaligned destination
{standard input}:24045: Error: offset to unaligned destination
{standard input}:24422: Error: offset to unaligned destination
{standard input}:32500: Error: offset to unaligned destination
--
In file included from kernel/trace/trace_output.h:6,
from kernel/trace/trace_events.c:31:
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STACKTRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1351:17: note: in expansion of macro 'C'
1351 | C(STACKTRACE, "stacktrace")
| ^
kernel/trace/trace.h:1393:17: note: in expansion of macro 'STACK_FLAGS'
1393 | STACK_FLAGS \
| ^~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
>> kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_DISPLAY_GRAPH' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1326:17: note: in expansion of macro 'C'
1326 | C(DISPLAY_GRAPH, "display-graph")
| ^
kernel/trace/trace.h:1392:17: note: in expansion of macro 'FGRAPH_FLAGS'
1392 | FGRAPH_FLAGS \
| ^~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNC_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1341:17: note: in expansion of macro 'C'
1341 | C(FUNC_FORK, "function-fork")
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNCTION' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1340:17: note: in expansion of macro 'C'
1340 | C(FUNCTION, "function-trace") \
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_HASH_PTR' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1390:17: note: in expansion of macro 'C'
1390 | C(HASH_PTR, "hash-ptr") /* Print hashed pointer */ \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_PAUSE_ON_TRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1389:17: note: in expansion of macro 'C'
1389 | C(PAUSE_ON_TRACE, "pause-on-trace") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_COPY_MARKER' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1388:17: note: in expansion of macro 'C'
1388 | C(COPY_MARKER, "copy_trace_marker")\
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_TRACE_PRINTK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1387:17: note: in expansion of macro 'C'
1387 | C(TRACE_PRINTK, "trace_printk_dest") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_EVENT_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1386:17: note: in expansion of macro 'C'
1386 | C(EVENT_FORK, "event-fork") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_MARKERS' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1385:17: note: in expansion of macro 'C'
1385 | C(MARKERS, "markers") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_IRQ_INFO' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1384:17: note: in expansion of macro 'C'
1384 | C(IRQ_INFO, "irq-info") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STOP_ON_FREE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
--
In file included from kernel/trace/ring_buffer.c:36:
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STACKTRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1351:17: note: in expansion of macro 'C'
1351 | C(STACKTRACE, "stacktrace")
| ^
kernel/trace/trace.h:1393:17: note: in expansion of macro 'STACK_FLAGS'
1393 | STACK_FLAGS \
| ^~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
>> kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_DISPLAY_GRAPH' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1326:17: note: in expansion of macro 'C'
1326 | C(DISPLAY_GRAPH, "display-graph")
| ^
kernel/trace/trace.h:1392:17: note: in expansion of macro 'FGRAPH_FLAGS'
1392 | FGRAPH_FLAGS \
| ^~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNC_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1341:17: note: in expansion of macro 'C'
1341 | C(FUNC_FORK, "function-fork")
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_FUNCTION' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1340:17: note: in expansion of macro 'C'
1340 | C(FUNCTION, "function-trace") \
| ^
kernel/trace/trace.h:1391:17: note: in expansion of macro 'FUNCTION_FLAGS'
1391 | FUNCTION_FLAGS \
| ^~~~~~~~~~~~~~
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_HASH_PTR' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1390:17: note: in expansion of macro 'C'
1390 | C(HASH_PTR, "hash-ptr") /* Print hashed pointer */ \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_PAUSE_ON_TRACE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1389:17: note: in expansion of macro 'C'
1389 | C(PAUSE_ON_TRACE, "pause-on-trace") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_COPY_MARKER' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1388:17: note: in expansion of macro 'C'
1388 | C(COPY_MARKER, "copy_trace_marker")\
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_TRACE_PRINTK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1387:17: note: in expansion of macro 'C'
1387 | C(TRACE_PRINTK, "trace_printk_dest") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_EVENT_FORK' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1386:17: note: in expansion of macro 'C'
1386 | C(EVENT_FORK, "event-fork") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_MARKERS' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1385:17: note: in expansion of macro 'C'
1385 | C(MARKERS, "markers") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_IRQ_INFO' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
| ^~~~~~~~~~~
kernel/trace/trace.h:1384:17: note: in expansion of macro 'C'
1384 | C(IRQ_INFO, "irq-info") \
| ^
kernel/trace/trace.h:1416:1: note: in expansion of macro 'TRACE_FLAGS'
1416 | TRACE_FLAGS
| ^~~~~~~~~~~
kernel/trace/trace.h:1414:34: warning: 'TRACE_ITER_STOP_ON_FREE' defined but not used [-Wunused-const-variable=]
1414 | #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
..
vim +/TRACE_ITER_DISPLAY_GRAPH +1414 kernel/trace/trace.h
1348
1349 #ifdef CONFIG_STACKTRACE
1350 # define STACK_FLAGS \
> 1351 C(STACKTRACE, "stacktrace")
1352 #else
1353 # define STACK_FLAGS
1354 #endif
1355
1356 /*
1357 * trace_iterator_flags is an enumeration that defines bit
1358 * positions into trace_flags that controls the output.
1359 *
1360 * NOTE: These bits must match the trace_options array in
1361 * trace.c (this macro guarantees it).
1362 */
1363 #define TRACE_FLAGS \
1364 C(PRINT_PARENT, "print-parent") \
1365 C(SYM_OFFSET, "sym-offset") \
1366 C(SYM_ADDR, "sym-addr") \
1367 C(VERBOSE, "verbose") \
1368 C(RAW, "raw") \
1369 C(HEX, "hex") \
1370 C(BIN, "bin") \
1371 C(BLOCK, "block") \
1372 C(FIELDS, "fields") \
1373 C(PRINTK, "trace_printk") \
1374 C(ANNOTATE, "annotate") \
1375 C(USERSTACKTRACE, "userstacktrace") \
1376 C(SYM_USEROBJ, "sym-userobj") \
1377 C(PRINTK_MSGONLY, "printk-msg-only") \
1378 C(CONTEXT_INFO, "context-info") /* Print pid/cpu/time */ \
1379 C(LATENCY_FMT, "latency-format") \
1380 C(RECORD_CMD, "record-cmd") \
1381 C(RECORD_TGID, "record-tgid") \
1382 C(OVERWRITE, "overwrite") \
1383 C(STOP_ON_FREE, "disable_on_free") \
1384 C(IRQ_INFO, "irq-info") \
1385 C(MARKERS, "markers") \
1386 C(EVENT_FORK, "event-fork") \
1387 C(TRACE_PRINTK, "trace_printk_dest") \
1388 C(COPY_MARKER, "copy_trace_marker")\
1389 C(PAUSE_ON_TRACE, "pause-on-trace") \
1390 C(HASH_PTR, "hash-ptr") /* Print hashed pointer */ \
1391 FUNCTION_FLAGS \
1392 FGRAPH_FLAGS \
1393 STACK_FLAGS \
1394 BRANCH_FLAGS
1395
1396 /*
1397 * By defining C, we can make TRACE_FLAGS a list of bit names
1398 * that will define the bits for the flag masks.
1399 */
1400 #undef C
1401 #define C(a, b) TRACE_ITER_##a##_BIT,
1402
1403 enum trace_iterator_bits {
1404 TRACE_FLAGS
1405 /* Make sure we don't go more than we have bits for */
1406 TRACE_ITER_LAST_BIT
1407 };
1408
1409 /*
1410 * By redefining C, we can make TRACE_FLAGS a list of masks that
1411 * use the bits as defined above.
1412 */
1413 #undef C
> 1414 #define C(a, b) static const u64 TRACE_ITER_##a = (1ULL << TRACE_ITER_##a##_BIT);
1415
--
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