Hi Michael, [auto build test WARNING on trace/for-next] [also build test WARNING on next-20170630] [cannot apply to tip/perf/core linus/master v4.12-rc7] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Michael-Sartain/tracing-Add-saved_tgids-file-to-show-cached-pid-to-tgid-mappings/20170702-092448 base: https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace.git for-next config: i386-randconfig-x072-07010433 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): In file included from include/uapi/linux/stddef.h:1:0, from include/linux/stddef.h:4, from include/uapi/linux/posix_types.h:4, from include/uapi/linux/types.h:13, from include/linux/types.h:5, from include/linux/mm_types_task.h:10, from include/linux/mm_types.h:4, from include/linux/kmemcheck.h:4, from include/linux/ring_buffer.h:4, from kernel/trace/trace.c:14: kernel/trace/trace.c: In function 'saved_cmdlines_next': kernel/trace/trace.c:4612:22: error: implicit declaration of function 'trace_find_tgid' [-Werror=implicit-function-declaration] if (tgid_check && !trace_find_tgid(*ptr)) ^ include/linux/compiler.h:160:30: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ >> kernel/trace/trace.c:4612:3: note: in expansion of macro 'if' if (tgid_check && !trace_find_tgid(*ptr)) ^~ kernel/trace/trace.c: In function 'saved_cmdlines_start': kernel/trace/trace.c:4627:21: error: 'tgid_map' undeclared (first use in this function) if (tgid_check && !tgid_map) ^ include/linux/compiler.h:160:30: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ kernel/trace/trace.c:4627:2: note: in expansion of macro 'if' if (tgid_check && !tgid_map) ^~ kernel/trace/trace.c:4627:21: note: each undeclared identifier is reported only once for each function it appears in if (tgid_check && !tgid_map) ^ include/linux/compiler.h:160:30: note: in definition of macro '__trace_if' if (__builtin_constant_p(!!(cond)) ? !!(cond) : \ ^~~~ kernel/trace/trace.c:4627:2: note: in expansion of macro 'if' if (tgid_check && !tgid_map) ^~ cc1: some warnings being treated as errors vim +/if +4612 kernel/trace/trace.c 4596 }; 4597 4598 static void *saved_cmdlines_next(struct seq_file *m, void *v, loff_t *pos) 4599 { 4600 unsigned int *ptr = v; 4601 long tgid_check = (long) m->private; 4602 4603 if (*pos || m->count) 4604 ptr++; 4605 4606 (*pos)++; 4607 4608 for (; ptr < &savedcmd->map_cmdline_to_pid[savedcmd->cmdline_num]; 4609 ptr++) { 4610 if (*ptr == -1 || *ptr == NO_CMDLINE_MAP) 4611 continue; > 4612 if (tgid_check && !trace_find_tgid(*ptr)) 4613 continue; 4614 4615 return ptr; 4616 } 4617 4618 return NULL; 4619 } 4620 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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