[-tip,3/6] kprobes: Use IS_ENABLED() instead of kprobes_built_in()

Commit Message

Masami Hiramatsu (Google) July 10, 2021, 2:55 p.m. UTC

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.

Signed-off-by: Masami Hiramatsu <[e-mail]>
---
 include/linux/kprobes.h |   14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

Patch

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 28c04f1f2b73..3d02917c837b 100644
--- 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);
 
@@ -414,10 +406,6 @@  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;
@@ -511,7 +499,7 @@  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;