On Mon, May 03, 2021 at 12:36:15PM -0500, madvenka@xxxxxxxxxxxxxxxxxxx wrote: > From: "Madhavan T. Venkataraman" <madvenka@xxxxxxxxxxxxxxxxxxx> > > The Function Graph Tracer modifies the return address of a traced function > to a return trampoline (return_to_handler()) to gather tracing data on > function return. When the unwinder encounters return_to_handler(), it calls > ftrace_graph_get_ret_stack() to lookup the original return address in the > return address stack. This makes sense to me, I'll need to re-review properly with the changes earlier on in the series but should be fine.
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