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tracing: Fix compile error when static ftrace is enabled 

The stack tracer uses the call ftrace_set_early_filter() function
to allow the stack tracer to pick its own functions on boot.
But this function is not defined if dynamic ftrace is not set.
This causes a compiler error when stack tracer is enabled and
dynamic ftrace is not.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
wifi-calibration
Steven Rostedt 2012-01-07 17:26:49 -05:00 committed by Steven Rostedt
parent 38b78eb855
commit 96de37b62c
1 changed files with 1 additions and 0 deletions
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include/linux/ftrace.h
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@ -339,6 +339,7 @@ static inline int ftrace_text_reserved(void *start, void *end)
* functions may still be called. Use a macro instead of inline.
*/
#define ftrace_regex_open(ops, flag, inod, file) ({ -ENODEV; })
#define ftrace_set_early_filter(ops, buf, enable) do { } while (0)
static inline ssize_t ftrace_filter_write(struct file *file, const char __user *ubuf,
size_t cnt, loff_t *ppos) { return -ENODEV; }