x86: kprobes remove fix_riprel #ifdef

Move #ifdef around function definiton into the function and
unconditionally return on X86_32.  Saves an ifdef from the
one callsite.

[ mingo@elte.hu: minor cleanup. ]

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index b1804e40235d..80bcb7635465 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -263,15 +263,16 @@ static int __kprobes is_IF_modifier(kprobe_opcode_t *insn)
         return 0;
 }
 
-#ifdef CONFIG_X86_64
 /*
  * Adjust the displacement if the instruction uses the %rip-relative
  * addressing mode.
  * If it does, Return the address of the 32-bit displacement word.
  * If not, return null.
+ * Only applicable to 64-bit x86.
  */
 static void __kprobes fix_riprel(struct kprobe *p)
 {
+#ifdef CONFIG_X86_64
         u8 *insn = p->ainsn.insn;
         s64 disp;
         int need_modrm;
@@ -335,15 +336,15 @@ static void __kprobes fix_riprel(struct kprobe *p)
                         *(s32 *)insn = (s32) disp;
                 }
         }
-}
 #endif
+}
 
 static void __kprobes arch_copy_kprobe(struct kprobe *p)
 {
         memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
-#ifdef CONFIG_X86_64
+
         fix_riprel(p);
-#endif
+
         if (can_boost(p->addr))
                 p->ainsn.boostable = 0;
         else