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From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: Linux Doc Mailing List <linux-doc@vger.kernel.org>,
	"Jonathan Corbet" <corbet@lwn.net>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH] scripts: kernel-doc: fix parsing function-like typedefs
Date: Wed,  2 Dec 2020 09:17:32 +0100	[thread overview]
Message-ID: <218ff56dcb8e73755005d3fb64586eb1841a276b.1606896997.git.mchehab+huawei@kernel.org> (raw)

Changeset 6b80975c6308 ("scripts: kernel-doc: fix typedef parsing")
added support for things like:

	typedef unsigned long foo();

However, it caused a regression on this prototype:

	typedef bool v4l2_check_dv_timings_fnc(const struct v4l2_dv_timings *t, void *handle);

This is only noticed after adding a patch that checks if the
kernel-doc identifier matches the typedef:

	./scripts/kernel-doc -none $(git grep '^.. kernel-doc::' Documentation/ |cut -d ' ' -f 3|sort|uniq) 2>&1|grep expecting
	include/media/v4l2-dv-timings.h:38: warning: expecting prototype for typedef v4l2_check_dv_timings_fnc. Prototype was for typedef nc instead

The problem is that, with the new parsing logic, it is not
checking for complete words at the type part.

Fix it by adding a \b at the end of each type word at the
regex.

fixes: 6b80975c6308 ("scripts: kernel-doc: fix typedef parsing")
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 scripts/kernel-doc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 919acae23fad..a9a92e623dbc 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -1444,7 +1444,7 @@ sub dump_enum($$) {
     }
 }
 
-my $typedef_type = qr { ((?:\s+[\w\*]+){1,8})\s* }x;
+my $typedef_type = qr { ((?:\s+[\w\*]+\b){1,8})\s* }x;
 my $typedef_ident = qr { \*?\s*(\w\S+)\s* }x;
 my $typedef_args = qr { \s*\((.*)\); }x;
 
-- 
2.28.0



             reply	other threads:[~2020-12-02  8:18 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-02  8:17 Mauro Carvalho Chehab [this message]
2020-12-03 23:08 ` [PATCH] scripts: kernel-doc: fix parsing function-like typedefs Jonathan Corbet

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