kernel-doc: describe the ``literal`` syntax
changeset b97f193abf83 ("scripts/kernel-doc: fix parser
for apostrophes") added support for ``literal`` inside
kernel-doc, in order to allow using the "%" symbol inside
a literal block, as this is used at printk() description.
Document it.
Fixes: b97f193abf83 ("scripts/kernel-doc: fix parser for apostrophes")
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
index b32e481..b24854b 100644
--- a/Documentation/doc-guide/kernel-doc.rst
+++ b/Documentation/doc-guide/kernel-doc.rst
@@ -149,6 +149,16 @@
``%CONST``
Name of a constant. (No cross-referencing, just formatting.)
+````literal````
+ A literal block that should be handled as-is. The output will use a
+ ``monospaced font``.
+
+ Useful if you need to use special characters that would otherwise have some
+ meaning either by kernel-doc script of by reStructuredText.
+
+ This is particularly useful if you need to use things like ``%ph`` inside
+ a function description.
+
``$ENVVAR``
Name of an environment variable. (No cross-referencing, just formatting.)