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-rw-r--r--arch/x86/include/asm/ftrace.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index db24c2278be0..268c783ab1c0 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -38,11 +38,10 @@ extern void mcount(void);
38static inline unsigned long ftrace_call_adjust(unsigned long addr) 38static inline unsigned long ftrace_call_adjust(unsigned long addr)
39{ 39{
40 /* 40 /*
41 * call mcount is "e8 <4 byte offset>" 41 * addr is the address of the mcount call instruction.
42 * The addr points to the 4 byte offset and the caller of this 42 * recordmcount does the necessary offset calculation.
43 * function wants the pointer to e8. Simply subtract one.
44 */ 43 */
45 return addr - 1; 44 return addr;
46} 45}
47 46
48#ifdef CONFIG_DYNAMIC_FTRACE 47#ifdef CONFIG_DYNAMIC_FTRACE