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Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/ftrace.h1
-rw-r--r--arch/s390/kernel/ftrace.c5
2 files changed, 1 insertions, 5 deletions
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
index a3b73a4f626e..185331e91f83 100644
--- a/arch/s390/include/asm/ftrace.h
+++ b/arch/s390/include/asm/ftrace.h
@@ -51,6 +51,7 @@ static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
return addr;
}
+#define ftrace_get_symaddr(fentry_ip) ((unsigned long)(fentry_ip))
#include <linux/ftrace_regs.h>
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index c0b2c97efefb..63ba6306632e 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -266,18 +266,13 @@ void ftrace_graph_func(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *op, struct ftrace_regs *fregs)
{
unsigned long *parent = &arch_ftrace_regs(fregs)->regs.gprs[14];
- int bit;
if (unlikely(ftrace_graph_is_dead()))
return;
if (unlikely(atomic_read(&current->tracing_graph_pause)))
return;
- bit = ftrace_test_recursion_trylock(ip, *parent);
- if (bit < 0)
- return;
if (!function_graph_enter_regs(*parent, ip, 0, parent, fregs))
*parent = (unsigned long)&return_to_handler;
- ftrace_test_recursion_unlock(bit);
}
#endif /* CONFIG_FUNCTION_GRAPH_TRACER */