linux-kernel - [PATCH v2] checkpatch: add new exception to repeated word check

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Message-Id: <20201014163738.117332-1-dwaipayanray1@gmail.com>
Date:   Wed, 14 Oct 2020 22:07:38 +0530
From:   Dwaipayan Ray <dwaipayanray1@...il.com>
To:     joe@...ches.com
Cc:     linux-kernel-mentees@...ts.linuxfoundation.org,
        dwaipayanray1@...il.com, linux-kernel@...r.kernel.org,
        lukas.bulwahn@...il.com
Subject: [PATCH v2] checkpatch: add new exception to repeated word check

Recently, commit 4f6ad8aa1eac ("checkpatch: move repeated word test")
moved the repeated word test to check for more file types. But after
this, if checkpatch.pl is run on MAINTAINERS, it generates several
new warnings of the type:

WARNING: Possible repeated word: 'git'

For example:
WARNING: Possible repeated word: 'git'
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml.git

So, the pattern "git git://..." is a false positive in this case.

Add 'git' to the exception list for repeated word check. This effectively
fixes all the newly generated false positives.

Fixes: 4f6ad8aa1eac ("checkpatch: move repeated word test")
Link: https://lore.kernel.org/linux-kernel-mentees/b6cd81b936671a8868fe98536d7c80771bdfd61c.camel@perches.com/

Suggested-by: Joe Perches <joe@...ches.com>
Suggested-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
Signed-off-by: Dwaipayan Ray <dwaipayanray1@...il.com>
---
 scripts/checkpatch.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index f1a4e61917eb..b55d83360366 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3063,7 +3063,7 @@ sub process {
 				}
 
 				next if ($first ne $second);
-				next if ($first eq 'long');
+				next if ($first =~ /^(?:long|git)$/);
 
 				if (WARN("REPEATED_WORD",
 					 "Possible repeated word: '$first'\n" . $herecurr) &&
-- 
2.27.0