arm64: cpuinfo: add system serial support

[firefly-linux-kernel-4.4.55.git] / arch / arm64 / kernel / perf_callchain.c

diff --git a/arch/arm64/kernel/perf_callchain.c b/arch/arm64/kernel/perf_callchain.c
index 3aa74830cc69af0053efb77c72e9c26ae3bd6c02..ff4665462a025d4ec2655ca30d49732a63194e53 100644 (file)
--- a/arch/arm64/kernel/perf_callchain.c
+++ b/arch/arm64/kernel/perf_callchain.c
@@ -164,8 +164,11 @@ void perf_callchain_kernel(struct perf_callchain_entry *entry,
        frame.fp = regs->regs[29];
        frame.sp = regs->sp;
        frame.pc = regs->pc;
+#ifdef CONFIG_FUNCTION_GRAPH_TRACER
+       frame.graph = current->curr_ret_stack;
+#endif
 
-       walk_stackframe(&frame, callchain_trace, entry);
+       walk_stackframe(current, &frame, callchain_trace, entry);
 }
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)