linux-kernel - [PATCH] kernel-doc: ignore _

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Date:   Mon, 5 Aug 2019 09:29:50 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Brendan Higgins <brendanhiggins@...gle.com>
Subject: [PATCH] kernel-doc: ignore __printf attribute

From: Randy Dunlap <rdunlap@...radead.org>

Ignore __printf() function attributes just as other __attribute__
strings are ignored.

Fixes this kernel-doc warning message:
include/kunit/kunit-stream.h:58: warning: Function parameter or member '2' not described in '__printf'

Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Brendan Higgins <brendanhiggins@...gle.com>
Tested-by: Brendan Higgins <brendanhiggins@...gle.com>
---
 scripts/kernel-doc |    1 +
 1 file changed, 1 insertion(+)

--- linux-next-20190805.orig/scripts/kernel-doc
+++ linux-next-20190805/scripts/kernel-doc
@@ -1580,6 +1580,7 @@ sub dump_function($$) {
     $prototype =~ s/__must_check +//;
     $prototype =~ s/__weak +//;
     $prototype =~ s/__sched +//;
+    $prototype =~ s/__printf\s*\(\s*\d*\s*,\s*\d*\s*\) +//;
     my $define = $prototype =~ s/^#\s*define\s+//; #ak added
     $prototype =~ s/__attribute__\s*\(\(
             (?: