linux-kernel - [PATCH] checkpatch: avoid error report caused by syzbot

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Date:   Wed, 28 Feb 2018 17:10:18 +0800
From:   Yisheng Xie <xieyisheng1@...wei.com>
To:     <apw@...onical.com>, <joe@...ches.com>, <akpm@...ux-foundation.org>
CC:     <linux-kernel@...r.kernel.org>,
        Yisheng Xie <xieyisheng1@...wei.com>
Subject: [PATCH] checkpatch: avoid error report caused by syzbot

syzbot request to add his reported-by when fix the bug find by syzbot.
However, it will trigger a error when use checkpatch:

  ERROR: Unrecognized email address: 'syzbot+d7a918a7a8e1c952bc36@...kaller.appspotmail.com'

For it include '+' in email and make regular expression works abnomal. Fix
it by adding check for syzbot.

Signed-off-by: Yisheng Xie <xieyisheng1@...wei.com>
---
 scripts/checkpatch.pl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 3d40403..19f3e26 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1075,7 +1075,11 @@ sub parse_email {
 	} elsif ($formatted_email =~ /(\S+\@\S+)(.*)$/) {
 		$address = $1;
 		$comment = $2 if defined $2;
-		$formatted_email =~ s/$address.*$//;
+		if ($address =~ /^syzbot.*\@syzkaller\.appspotmail\.com$/) {
+			$formatted_email = "";
+		} else {
+			$formatted_email =~ s/^($address).*$//;
+		}
 		$name = $formatted_email;
 		$name = trim($name);
 		$name =~ s/^\"|\"$//g;
-- 
1.7.12.4