Em Wed, 24 Mar 2021 11:12:37 -0600
Jonathan Corbet [off-list ref] escreveu:

Mauro Carvalho Chehab [off-list ref] writes:

quoted

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

	Documentation/ABI/testing/sysfs-kernel-mm-cma:2: WARNING: Inline interpreted text or phrase reference start-string without end-string.

Introduced by commit 439d477342a3 ("mm: cma: support sysfs")

As pointed by Jonathan, the problem is this text in
sysfs-kernel-mm-cma:

	Each CMA heap subdirectory (that is, each
	/sys/kernel/mm/cma/<cma-heap-name> directory) contains the
	following items:

Is not parsed well, becase the major/minor signs need to be
escaped, when converted into cross-references.  

Sorry, I kind of dropped the ball on this, and everything else really; a
bit of a challenging time here.

This makes the warning go away, but I have to wonder if it's the right
fix 

There's indeed an issue on another part of the script. I'm testing 
a second version using a better and more generic regex set.

- wouldn't it be better to avoid trying to create a cross-reference
entirely in cases where it clearly won't work?  Or am I missing
something here?

The cross-reference logic on this script is somewhat smart: it
will only create cross-references if the symbol exists. If not,
it keeps the symbol as-is.

The problem was actually on another part of the logic: there is
a symbol "/sys/kernel/mm/cma". The script is currently thinking
that the "<" character at:
	/sys/kernel/mm/cma/<cma-heap-name> 

is a bondary. So, it ended converting the first part 
("/sys/kernel/mm/cma/") into a cross reference.

This patch fixed it by dropping the reference for the non-existent 
symbol "/sys/kernel/mm/cma/" (the reference should be, instead,
to /sys/kernel/mm/cma/<cma-heap-name>/foo), but there's still
a hidden bug, which causes that a reference for
/sys/kernel/mm/cma/<cma-heap-name>/alloc_pages_success to be
broken.

I have already a new patch. I'm checking right now if everything
is ok after the regex change. I should be sending a version 2
probably in a few.

Thanks,
Mauro