linux-kernel - [PATCH 4/8] scripts: get_abi.pl: Better handle leaves with wildcards

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Date:   Thu, 23 Sep 2021 17:41:15 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     #@...nel.org, YUyICHTRdfL8Ul7X@...ah.com,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        "Jonathan Corbet" <corbet@....net>, linux-kernel@...r.kernel.org
Subject: [PATCH 4/8] scripts: get_abi.pl: Better handle leaves with wildcards

When the the leaf of a regex ends with a wildcard, the speedup
algorithm to reduce the number of regexes to seek won't work.

So, when those are found, place at the "others" exception.

That slows down the search from 0.14s to 1 minute on my
machine, but the results are a lot more consistent.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 scripts/get_abi.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/get_abi.pl b/scripts/get_abi.pl
index bb80303fea22..3c0063d0e05e 100755
--- a/scripts/get_abi.pl
+++ b/scripts/get_abi.pl
@@ -665,7 +665,7 @@ sub get_leave($)
 	# However, there are a few occurences where the leave is
 	# either a wildcard or a number. Just group such cases
 	# altogether.
-	if ($leave =~ m/^\.\*/ || $leave eq "" || $leave =~ /^\d+$/) {
+	if ($leave =~ m/\.\*/ || $leave eq "" || $leave =~ /\\d/) {
 		$leave = "others";
 	}
 
-- 
2.31.1