ftrace: have function graph use mcount caller address

Impact: consistency change for function graph

This patch makes function graph record the mcount caller address
the same way the function tracer does.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 958af86186c4..826682abed1d 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1230,6 +1230,7 @@ ENTRY(ftrace_graph_caller)
         pushl %edx
         movl 0xc(%esp), %edx
         lea 0x4(%ebp), %eax
+        subl $MCOUNT_INSN_SIZE, %edx
         call prepare_ftrace_return
         popl %edx
         popl %ecx