On Wed, Apr 10, 2019 at 12:28:22PM +0200, Thomas Gleixner wrote: > Replace the indirection through struct stack_trace with an invocation of > the storage array based interface.
This seems to be missing some context, at least stack_trace_save does not actually exist in mainline. Please always send the whole series out to everyone on the To and Cc list, otherwise patch series are not reviewable.