x86/ftrace: Make enable parameter bool where applicable

The code modification functions have an "enable" parameter that is an "int"
but used as a boolean. Switch its type to "bool" to remove the ambiguity
that "int" causes.

Link: http://lkml.kernel.org/r/e142[e-mail]

Reported-by: "Naveen N. Rao" <[e-mail]>
Signed-off-by: Steven Rostedt (VMware) <[e-mail]>

arch/x86/kernel/ftrace.c

···
 	return add_break(rec->ip, old);
 }
 
-static int add_breakpoints(struct dyn_ftrace *rec, int enable)
+static int add_breakpoints(struct dyn_ftrace *rec, bool enable)
 {
 	unsigned long ftrace_addr;
 	int ret;
···
 	return add_update_code(ip, new);
 }
 
-static int add_update(struct dyn_ftrace *rec, int enable)
+static int add_update(struct dyn_ftrace *rec, bool enable)
 {
 	unsigned long ftrace_addr;
 	int ret;
···
 	return ftrace_write(ip, new, 1);
 }
 
-static int finish_update(struct dyn_ftrace *rec, int enable)
+static int finish_update(struct dyn_ftrace *rec, bool enable)
 {
 	unsigned long ftrace_addr;
 	int ret;