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Original code allows to detect an unjoin request during a scan and delaying the unjoin request. However, it is far easier to just block the unjoin request until the end of the scan request. In fact, it is already the case since scan and unjoin are protected by conf_mutex. So, currently, the handling of delayed_unjoin is just dead code. Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Link: https://lore.kernel.org/r/20191217161318.31402-53-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>