Merge commit 'ftrace/ppc' into merge

2 files changed, 8 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 900e0eea0099..f9fd54bfcc84 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -1038,8 +1038,7 @@ _GLOBAL(mod_return_to_handler)
          * We are in a module using the module's TOC.
          * Switch to our TOC to run inside the core kernel.
          */
-        LOAD_REG_IMMEDIATE(r4,ftrace_return_to_handler)
-        ld      r2, 8(r4)
+        ld      r2, PACATOC(r13)
 
         bl      .ftrace_return_to_handler
         nop
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1168c5f440ab..2ec1eaed19ca 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1016,9 +1016,13 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
         int curr_frame = current->curr_ret_stack;
         extern void return_to_handler(void);
-        unsigned long addr = (unsigned long)return_to_handler;
+        unsigned long rth = (unsigned long)return_to_handler;
+        unsigned long mrth = -1;
 #ifdef CONFIG_PPC64
-        addr = *(unsigned long*)addr;
+        extern void mod_return_to_handler(void);
+        rth = *(unsigned long *)rth;
+        mrth = (unsigned long)mod_return_to_handler;
+        mrth = *(unsigned long *)mrth;
 #endif
 #endif
 
@@ -1044,7 +1048,7 @@ void show_stack(struct task_struct *tsk, unsigned long *stack)
                 if (!firstframe || ip != lr) {
                         printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip);
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-                        if (ip == addr && curr_frame >= 0) {
+                        if ((ip == rth || ip == mrth) && curr_frame >= 0) {
                                 printk(" (%pS)",
                                        (void *)current->ret_stack[curr_frame].ret);
                                 curr_frame--;