ftrace: remove mcount set

The arch dependent function ftrace_mcount_set was only used by the daemon
start up code. This patch removes it.

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

4 files changed, 0 insertions, 55 deletions

diff --git a/arch/arm/kernel/ftrace.c b/arch/arm/kernel/ftrace.c
index 76d50e6091b..6c90479e897 100644
--- a/arch/arm/kernel/ftrace.c
+++ b/arch/arm/kernel/ftrace.c
@@ -95,19 +95,6 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
-int ftrace_mcount_set(unsigned long *data)
-{
-	unsigned long pc, old;
-	unsigned long *addr = data;
-	unsigned char *new;
-
-	pc = (unsigned long)&mcount_call;
-	memcpy(&old, &mcount_call, MCOUNT_INSN_SIZE);
-	new = ftrace_call_replace(pc, *addr);
-	*addr = ftrace_modify_code(pc, (unsigned char *)&old, new);
-	return 0;
-}
-
 /* run from kstop_machine */
 int __init ftrace_dyn_arch_init(void *data)
 {
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index 3855ceb937b..6b75522e8b3 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -126,23 +126,6 @@ notrace int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
-notrace int ftrace_mcount_set(unsigned long *data)
-{
-	unsigned long ip = (long)(&mcount_call);
-	unsigned long *addr = data;
-	unsigned char old[MCOUNT_INSN_SIZE], *new;
-
-	/*
-	 * Replace the mcount stub with a pointer to the
-	 * ip recorder function.
-	 */
-	memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
-	new = ftrace_call_replace(ip, *addr);
-	*addr = ftrace_modify_code(ip, old, new);
-
-	return 0;
-}
-
 int __init ftrace_dyn_arch_init(void *data)
 {
 	/* This is running in kstop_machine */
diff --git a/arch/sparc64/kernel/ftrace.c b/arch/sparc64/kernel/ftrace.c
index 4298d0aee71..447942041a7 100644
--- a/arch/sparc64/kernel/ftrace.c
+++ b/arch/sparc64/kernel/ftrace.c
@@ -69,24 +69,6 @@ notrace int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ftrace_modify_code(ip, old, new);
 }
 
-notrace int ftrace_mcount_set(unsigned long *data)
-{
-	unsigned long ip = (long)(&mcount_call);
-	unsigned long *addr = data;
-	unsigned char old[MCOUNT_INSN_SIZE], *new;
-
-	/*
-	 * Replace the mcount stub with a pointer to the
-	 * ip recorder function.
-	 */
-	memcpy(old, &mcount_call, MCOUNT_INSN_SIZE);
-	new = ftrace_call_replace(ip, *addr);
-	*addr = ftrace_modify_code(ip, old, new);
-
-	return 0;
-}
-
-
 int __init ftrace_dyn_arch_init(void *data)
 {
 	ftrace_mcount_set(data);
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index da4fb0deecf..b399eed2353 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -103,13 +103,6 @@ notrace int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
-notrace int ftrace_mcount_set(unsigned long *data)
-{
-	/* mcount is initialized as a nop */
-	*data = 0;
-	return 0;
-}
-
 int __init ftrace_dyn_arch_init(void *data)
 {
 	extern const unsigned char ftrace_test_p6nop[];