Re: [PATCH 3/3] trace: print address if symbol not found

[kbuild test robot]

Hi Tobin,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v4.15-rc4 next-20171219]
[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/Tobin-C-Harding/kallsyms-don-t-leak-address/20171220-062707
config: i386-randconfig-s1-201751 (attached as .config)
compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/trace/trace_events_hist.c: In function 'hist_trigger_stacktrace_print':
>> kernel/trace/trace_events_hist.c:985:3: error: implicit declaration of function 'trace_sprint_symbol_addr' [-Werror=implicit-function-declaration]
      trace_sprint_symbol_addr(str, stacktrace_entries[i]);
      ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/trace_sprint_symbol_addr +985 kernel/trace/trace_events_hist.c

   971	
   972	static void hist_trigger_stacktrace_print(struct seq_file *m,
   973						  unsigned long *stacktrace_entries,
   974						  unsigned int max_entries)
   975	{
   976		char str[KSYM_SYMBOL_LEN];
   977		unsigned int spaces = 8;
   978		unsigned int i;
   979	
   980		for (i = 0; i < max_entries; i++) {
   981			if (stacktrace_entries[i] == ULONG_MAX)
   982				return;
   983	
   984			seq_printf(m, "%*c", 1 + spaces, ' ');
 > 985			trace_sprint_symbol_addr(str, stacktrace_entries[i]);
   986			seq_printf(m, "%s\n", str);
   987		}
   988	}
   989	

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