[PATCH 19/27] scripts/kernel-doc.py: implement support for -no-doc-sections

[Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>]

The venerable kernel-doc Perl script has a number of options that
aren't properly documented. Among them, there is -no-doc-sections,
which is used by the Sphinx extension.

Implement support for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
---
 scripts/kernel-doc.py           | 8 ++++++--
 scripts/lib/kdoc/kdoc_files.py  | 5 +++--
 scripts/lib/kdoc/kdoc_output.py | 7 ++++++-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/scripts/kernel-doc.py b/scripts/kernel-doc.py
index a687a7abb3b9..d700451e9541 100755
--- a/scripts/kernel-doc.py
+++ b/scripts/kernel-doc.py
@@ -164,10 +164,13 @@ def main():
     sel_mut.add_argument("-s", "-function", "--symbol", action='append',
                          help=FUNCTION_DESC)
 
-    # This one is valid for all 3 types of filter
+    # Those are valid for all 3 types of filter
     parser.add_argument("-n", "-nosymbol", "--nosymbol", action='append',
                          help=NOSYMBOL_DESC)
 
+    parser.add_argument("-D", "-no-doc-sections", "--no-doc-sections",
+                        action='store_true', help="Don't outputt DOC sections")
+
     parser.add_argument("files", metavar="FILE",
                         nargs="+", help=FILES_DESC)
 
@@ -209,7 +212,8 @@ def main():
 
     for t in kfiles.msg(enable_lineno=args.enable_lineno, export=args.export,
                           internal=args.internal, symbol=args.symbol,
-                          nosymbol=args.nosymbol):
+                          nosymbol=args.nosymbol,
+                          no_doc_sections=args.no_doc_sections):
         msg = t[1]
         if msg:
             print(msg)
diff --git a/scripts/lib/kdoc/kdoc_files.py b/scripts/lib/kdoc/kdoc_files.py
index 4a6e75dbdbdd..c215ae3047b8 100755
--- a/scripts/lib/kdoc/kdoc_files.py
+++ b/scripts/lib/kdoc/kdoc_files.py
@@ -237,7 +237,7 @@ class KernelFiles():
         return self.out_style.msg(fname, name, arg)
 
     def msg(self, enable_lineno=False, export=False, internal=False,
-            symbol=None, nosymbol=None):
+            symbol=None, nosymbol=None, no_doc_sections=False):
         """
         Interacts over the kernel-doc results and output messages,
         returning kernel-doc markups on each interaction
@@ -256,7 +256,8 @@ class KernelFiles():
         self.out_style.set_config(self.config)
 
         self.out_style.set_filter(export, internal, symbol, nosymbol,
-                                  function_table, enable_lineno)
+                                  function_table, enable_lineno,
+                                  no_doc_sections)
 
         for fname, arg_tuple in self.results:
             msg = ""
diff --git a/scripts/lib/kdoc/kdoc_output.py b/scripts/lib/kdoc/kdoc_output.py
index 91f6e356d03d..8729dc58e13c 100755
--- a/scripts/lib/kdoc/kdoc_output.py
+++ b/scripts/lib/kdoc/kdoc_output.py
@@ -69,6 +69,7 @@ class OutputFormat:
         self.symbol = None
         self.function_table = set()
         self.config = None
+        self.no_doc_sections = False
 
         self.data = ""
 
@@ -76,7 +77,7 @@ class OutputFormat:
         self.config = config
 
     def set_filter(self, export, internal, symbol, nosymbol, function_table,
-                   enable_lineno):
+                   enable_lineno, no_doc_sections):
         """
         Initialize filter variables according with the requested mode.
 
@@ -86,6 +87,7 @@ class OutputFormat:
         """
 
         self.enable_lineno = enable_lineno
+        self.no_doc_sections = no_doc_sections
 
         if symbol:
             self.out_mode = self.OUTPUT_INCLUDE
@@ -116,6 +118,9 @@ class OutputFormat:
     def check_doc(self, name):
         """Check if DOC should be output"""
 
+        if self.no_doc_sections:
+            return False
+
         if self.out_mode == self.OUTPUT_ALL:
             return True
 
-- 
2.48.1