linux-kernel - [PATCH 3/3] kernel-doc: Strip #ifdef/#endif in enums

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Date:	Sun, 8 Nov 2015 10:49:22 +0100
From:	conchur@....de
To:	"Jonathan Corbet" <corbet@....net>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 3/3] kernel-doc: Strip #ifdef/#endif in enums

From: Conchúr Navid <conchur@....de>

Some documented structures in the kernel use DECLARE_BITMAP to create
arrays of unsigned longs to store information using the bitmap functions.
These have to be replaced with a parsable version for kernel-doc.

For example a simple input like

    /**
     * struct something - some test
     * @members: active members
     */
    struct something {
    	DECLARE_BITMAP(members, MAX_MEMBERS);
    };

resulted in parsing warnings like

    warning: No description found for parameter 'MAX_MEMBERS)'
    warning: Excess struct/union/enum/typedef member 'members' description in 'something'

Signed-off-by: Conchúr Navid <conchur@....de>
---
 scripts/kernel-doc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index f5c2971..9015b18 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1816,6 +1816,8 @@ sub dump_struct($$) {
 	$members =~ s/__attribute__\s*\(\([a-z,_\*\s\(\)]*\)\)//i;
 	$members =~ s/__aligned\s*\([^;]*\)//gos;
 	$members =~ s/\s*CRYPTO_MINALIGN_ATTR//gos;
+	# replace DECLARE_BITMAP
+	$members =~ s/DECLARE_BITMAP\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
 
 	create_parameterlist($members, ';', $file);
 	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
-- 
2.6.2
--
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