On Tue, 23 Sep 2025 09:47:13 +0800 kernel test robot <[email protected]> wrote:
> 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/[email protected]/config) > compiler: sh4-linux-gcc (GCC) 15.1.0 > reproduce (this is a W=1 build): > (https://download.01.org/0day-ci/archive/20250923/[email protected]/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 <[email protected]> > | Closes: > https://lore.kernel.org/oe-kbuild-all/[email protected]/ > Hmm, even if it is 'static const', if it is not used, we will get warning. Maybe #undef C(a, b) #define C(a, b) TRACE_ITER_##a | static const u64 trace_flags_defined = TRACE_FLAGS 0; And use this mask in the set_tracer_flag() to check given bit mask is correct. Thank you, > 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 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki -- Masami Hiramatsu (Google) <[email protected]>
