Subject: linux-next: build warning after merge of the tip tree

From: Stephen Rothwell <[email-masked]>
Date: Wed, 28 Oct 2020 14:23:00 +1100

Hi all,

After merging the tip tree, today's linux-next build (htmldocs) produced
this warning:

Documentation/admin-guide/hw-vuln/l1d_flush.rst:25: WARNING: undefined label: documentation/userspace-api/spec_ctrl.rst (if the link has no caption the label must precede a section header)

Introduced by commit

  767d46ab566d ("Documentation: Add L1D flushing Documentation")

-- 
Cheers,
Stephen Rothwell