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kernel test robot rightly points out that w1_poll_completion() should be static, so mark it as such. Cc: Ivan Zaentsev <ivan.zaentsev@wirenboard.ru> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/r/20201005123703.GA800532@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>