+Cc: Jonathan Corbet [off-list ref], linux-doc@vger.kernel.org

Stephen Rothwell writes:

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

kernel/printk/printk.c:1: warning: 'printk' not found

Introduced by commit

 337015573718 ("printk: Userspace format indexing support")

I presume that "printk" is referred to elsewhere in the documentation
as being in this file.

Hmm, this is an interesting one, because I think we still generally just want 
to refer to the API as being `printk()`. Changing it all over the place seems 
wrong. As you'd imagine, there are quite a few references to this name, so it 
requires a lot of noise all over the docs and inline comments.

Jonathan and other docs folks, how can one tell Sphinx that when it sees 
printk() it's referring to a function-like macro, or otherwise squelch this 
reasonably? :-)