linux-kernel - [PATCH 4/4] docs: sphinx: Add support :nosymbols: to exclude specific symbols

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Date:   Fri,  5 Apr 2019 14:44:53 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Jonathan Corbet <corbet@....net>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] docs: sphinx: Add support :nosymbols: to exclude specific symbols

Add :nosymbols: so that documentation of symbols can be organized in the
final output of makedocs.  For example, files that define a large number
of symbols may want to categorize their symbols.  Another example is
SGX, which introduces a uapi header that defines structs for ioctls and
for a new vDSO function[1].  Ideally, the documentation for the vDSO
struct will be placed into a different section.

[1] https://lkml.kernel.org/r/20190320162119.4469-25-jarkko.sakkinen@linux.intel.com

Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>
---
 Documentation/sphinx/kerneldoc.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/sphinx/kerneldoc.py b/Documentation/sphinx/kerneldoc.py
index c52b6caac356..d1eb1907858b 100644
--- a/Documentation/sphinx/kerneldoc.py
+++ b/Documentation/sphinx/kerneldoc.py
@@ -48,6 +48,7 @@ class KernelDocDirective(Directive):
     option_spec = {
         'doc': directives.unchanged_required,
         'functions': directives.unchanged,
+        'nosymbols': directives.unchanged,
         'export': directives.unchanged,
         'internal': directives.unchanged,
     }
@@ -81,6 +82,10 @@ class KernelDocDirective(Directive):
                     cmd += ['-symbol', f]
             else:
                 cmd += ['-no-doc-sections']
+        elif 'nosymbols' in self.options:
+            symbols = self.options.get('nosymbols').split()
+            for s in symbols:
+                cmd += ['-nosymbol', s]
 
         for pattern in export_file_patterns:
             for f in glob.glob(env.config.kerneldoc_srctree + '/' + pattern):
-- 
2.21.0