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Subject[tip:WIP.core/stacktrace 47/47] kernel//trace/trace_stack.c:263:26: error: invalid use of undefined type 'struct stack_trace'
tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.core/stacktrace
head: 63c35ea6b829a0f98d307a8dec038095681ecd13
commit: 63c35ea6b829a0f98d307a8dec038095681ecd13 [47/47] x86/stacktrace: Use common infrastructure
config: i386-randconfig-x010-201915 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
git checkout 63c35ea6b829a0f98d307a8dec038095681ecd13
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

kernel//trace/trace_stack.c:24:17: error: static declaration of 'stack_trace_index' follows non-static declaration
static unsigned stack_trace_index[STACK_TRACE_ENTRIES];
^~~~~~~~~~~~~~~~~
In file included from kernel//trace/trace_stack.c:12:0:
include/linux/ftrace.h:248:17: note: previous declaration of 'stack_trace_index' was here
extern unsigned stack_trace_index[];
^~~~~~~~~~~~~~~~~
kernel//trace/trace_stack.c:27:22: error: static declaration of 'stack_trace_max_size' follows non-static declaration
static unsigned long stack_trace_max_size;
^~~~~~~~~~~~~~~~~~~~
In file included from kernel//trace/trace_stack.c:12:0:
include/linux/ftrace.h:250:22: note: previous declaration of 'stack_trace_max_size' was here
extern unsigned long stack_trace_max_size;
^~~~~~~~~~~~~~~~~~~~
kernel//trace/trace_stack.c:28:24: error: static declaration of 'stack_trace_max_lock' follows non-static declaration
static arch_spinlock_t stack_trace_max_lock =
^~~~~~~~~~~~~~~~~~~~
In file included from kernel//trace/trace_stack.c:12:0:
include/linux/ftrace.h:251:24: note: previous declaration of 'stack_trace_max_lock' was here
extern arch_spinlock_t stack_trace_max_lock;
^~~~~~~~~~~~~~~~~~~~
kernel//trace/trace_stack.c: In function '__next':
>> kernel//trace/trace_stack.c:263:26: error: invalid use of undefined type 'struct stack_trace'
if (n >= stack_trace_max.nr_entries)
^
kernel//trace/trace_stack.c: In function 't_show':
kernel//trace/trace_stack.c:327:22: error: invalid use of undefined type 'struct stack_trace'
stack_trace_max.nr_entries);
^
kernel//trace/trace_stack.c:337:26: error: invalid use of undefined type 'struct stack_trace'
if (i >= stack_trace_max.nr_entries)
^
kernel//trace/trace_stack.c:340:30: error: invalid use of undefined type 'struct stack_trace'
if (i + 1 == stack_trace_max.nr_entries)
^

vim +263 kernel//trace/trace_stack.c

e5a81b62 Steven Rostedt 2008-08-27 257
e5a81b62 Steven Rostedt 2008-08-27 258 static void *
2fc5f0cf Li Zefan 2009-08-17 259 __next(struct seq_file *m, loff_t *pos)
e5a81b62 Steven Rostedt 2008-08-27 260 {
2fc5f0cf Li Zefan 2009-08-17 261 long n = *pos - 1;
e5a81b62 Steven Rostedt 2008-08-27 262
4285f2fc Thomas Gleixner 2019-04-10 @263 if (n >= stack_trace_max.nr_entries)
e5a81b62 Steven Rostedt 2008-08-27 264 return NULL;
e5a81b62 Steven Rostedt 2008-08-27 265
2fc5f0cf Li Zefan 2009-08-17 266 m->private = (void *)n;
1b6cced6 Steven Rostedt 2008-08-29 267 return &m->private;
e5a81b62 Steven Rostedt 2008-08-27 268 }
e5a81b62 Steven Rostedt 2008-08-27 269

:::::: The code at line 263 was first introduced by commit
:::::: 4285f2fcef8001ead0f1c9315ba50302cab68cda tracing: Remove the ULONG_MAX stack trace hackery

:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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