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-rw-r--r--arch/x86/include/asm/unwind.h14
-rw-r--r--arch/x86/kernel/unwind_guess.c10
2 files changed, 12 insertions, 12 deletions
diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
index c4b6d1cafa46..46de9ac4b990 100644
--- a/arch/x86/include/asm/unwind.h
+++ b/arch/x86/include/asm/unwind.h
@@ -23,6 +23,8 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
23 23
24bool unwind_next_frame(struct unwind_state *state); 24bool unwind_next_frame(struct unwind_state *state);
25 25
26unsigned long unwind_get_return_address(struct unwind_state *state);
27
26static inline bool unwind_done(struct unwind_state *state) 28static inline bool unwind_done(struct unwind_state *state)
27{ 29{
28 return state->stack_info.type == STACK_TYPE_UNKNOWN; 30 return state->stack_info.type == STACK_TYPE_UNKNOWN;
@@ -48,8 +50,6 @@ unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
48 return state->bp + 1; 50 return state->bp + 1;
49} 51}
50 52
51unsigned long unwind_get_return_address(struct unwind_state *state);
52
53#else /* !CONFIG_FRAME_POINTER */ 53#else /* !CONFIG_FRAME_POINTER */
54 54
55static inline 55static inline
@@ -58,16 +58,6 @@ unsigned long *unwind_get_return_address_ptr(struct unwind_state *state)
58 return NULL; 58 return NULL;
59} 59}
60 60
61static inline
62unsigned long unwind_get_return_address(struct unwind_state *state)
63{
64 if (unwind_done(state))
65 return 0;
66
67 return ftrace_graph_ret_addr(state->task, &state->graph_idx,
68 *state->sp, state->sp);
69}
70
71#endif /* CONFIG_FRAME_POINTER */ 61#endif /* CONFIG_FRAME_POINTER */
72 62
73#endif /* _ASM_X86_UNWIND_H */ 63#endif /* _ASM_X86_UNWIND_H */
diff --git a/arch/x86/kernel/unwind_guess.c b/arch/x86/kernel/unwind_guess.c
index b5a834c93065..9298993dc8b7 100644
--- a/arch/x86/kernel/unwind_guess.c
+++ b/arch/x86/kernel/unwind_guess.c
@@ -5,6 +5,16 @@
5#include <asm/stacktrace.h> 5#include <asm/stacktrace.h>
6#include <asm/unwind.h> 6#include <asm/unwind.h>
7 7
8unsigned long unwind_get_return_address(struct unwind_state *state)
9{
10 if (unwind_done(state))
11 return 0;
12
13 return ftrace_graph_ret_addr(state->task, &state->graph_idx,
14 *state->sp, state->sp);
15}
16EXPORT_SYMBOL_GPL(unwind_get_return_address);
17
8bool unwind_next_frame(struct unwind_state *state) 18bool unwind_next_frame(struct unwind_state *state)
9{ 19{
10 struct stack_info *info = &state->stack_info; 20 struct stack_info *info = &state->stack_info;