On Fri, 26 Jul 2019 13:27:54 -0300 Fabio Estevam <festevam@xxxxxxxxx> wrote: > The following warning is seen when building 'make htmldocs': > > Documentation/admin-guide/sysctl/kernel.rst:397: WARNING: Title underline too short. > > Fix it by adjusting the title underline length appropriately. > > Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx> So this appears to be fixing a change that came into linux-next via the -mm tree; it's not in mainline or docs-next. That means I can't apply it. I'd suggest resposting with a copy to Andrew Morton; that should let it land in the right place. Thanks, jon