Commit 046fc741 authored by Mimi Zohar's avatar Mimi Zohar Committed by Linus Torvalds

checkpatch: make email address check case insensitive

Instead of checkpatch requiring the patch author to exactly match the
signed-off-by tag, commit 48ca2d8a ("checkpatch: add new warnings to
author signoff checks.") safely relaxed this requirement.

Although the local-part of an email address (local-part@domain), may be
case sensitive, exploiting the case sensitivity of mailbox local-parts
impedes interoperability and is discouraged.  Mailbox domains follow
normal DNS rules and are hence not case sensitive.  (Refer to
https://datatracker.ietf.org/doc/html/rfc5321#section-2.4.)

Further relax the patch author and signed-off-by tag comparison by making
the email address check case insensitive.

Link: https://lkml.kernel.org/r/20210816112725.173206-1-zohar@linux.ibm.comSigned-off-by: default avatarMimi Zohar <zohar@linux.ibm.com>
Acked-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d2af5aa6
...@@ -2909,10 +2909,10 @@ sub process { ...@@ -2909,10 +2909,10 @@ sub process {
my ($email_name, $email_comment, $email_address, $comment1) = parse_email($ctx); my ($email_name, $email_comment, $email_address, $comment1) = parse_email($ctx);
my ($author_name, $author_comment, $author_address, $comment2) = parse_email($author); my ($author_name, $author_comment, $author_address, $comment2) = parse_email($author);
if ($email_address eq $author_address && $email_name eq $author_name) { if (lc $email_address eq lc $author_address && $email_name eq $author_name) {
$author_sob = $ctx; $author_sob = $ctx;
$authorsignoff = 2; $authorsignoff = 2;
} elsif ($email_address eq $author_address) { } elsif (lc $email_address eq lc $author_address) {
$author_sob = $ctx; $author_sob = $ctx;
$authorsignoff = 3; $authorsignoff = 3;
} elsif ($email_name eq $author_name) { } elsif ($email_name eq $author_name) {
......
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