kprobes: Use IS_ENABLED() instead of kprobes_built_in()

Use IS_ENABLED(CONFIG_KPROBES) instead of kprobes_built_in().
This inline function is introduced only for avoiding #ifdef.
But since now we have IS_ENABLED(), it is no longer needed.

Link: https://lkml.kernel.org/r/163163038581.489837.2805250706507372658.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 756d3d2..9c28fbb 100644 (file)
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -180,14 +180,6 @@ struct kprobe_blacklist_entry {
 DECLARE_PER_CPU(struct kprobe *, current_kprobe);
 DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
-/*
- * For #ifdef avoidance:
- */
-static inline int kprobes_built_in(void)
-{
-       return 1;
-}
-
 extern void kprobe_busy_begin(void);
 extern void kprobe_busy_end(void);
 
@@ -417,10 +409,6 @@ int arch_kprobe_get_kallsym(unsigned int *symnum, unsigned long *value,
                            char *type, char *sym);
 #else /* !CONFIG_KPROBES: */
 
-static inline int kprobes_built_in(void)
-{
-       return 0;
-}
 static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 {
        return 0;
@@ -514,7 +502,7 @@ static inline bool is_kprobe_optinsn_slot(unsigned long addr)
 static nokprobe_inline bool kprobe_page_fault(struct pt_regs *regs,
                                              unsigned int trap)
 {
-       if (!kprobes_built_in())
+       if (!IS_ENABLED(CONFIG_KPROBES))
                return false;
        if (user_mode(regs))
                return false;