Am 15.11.2017 um 18:52 schrieb Joe Perches [off-list ref]:

On Wed, 2017-11-15 at 18:13 +0100, H. Nikolaus Schaller wrote:

quoted

We have automated things by calling checkpatch but it somwhow failed here.

what failed?

I don't know. It didn't tell us that the signature was missing. Maybe
a glitch in our post-processing script. I tried again and checkpatch.pl
did clearly report the ERROR this time.

So nothing you can fix.

BR and thanks,
Nikolaus Schaller