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checkpatch: warn if missing author Signed-off-by

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Print a warning if none of the Signed-off-by lines cover the patch author.

Non-ASCII quoted printable encoding in From: headers and (lack of) double
quotes are handled.  Split From: headers are not fully handled: only the
first part is compared.

[geert+renesas@glider.be: only encode UTF-8 quoted printable mail headers]
  Link: http://lkml.kernel.org/r/20180718145254.4770-1-geert+renesas@glider.be
Link: http://lkml.kernel.org/r/20180712100323.26684-1-geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Joe Perches <joe@perches.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Geert Uytterhoeven 2018-08-21 21:57:40 -07:00 committed by Linus Torvalds
parent 33aa4597dd
commit cd2614967d
1 changed files with 25 additions and 3 deletions
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28
scripts/checkpatch.pl
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@ -13,6 +13,7 @@ use POSIX;
use File::Basename;
use Cwd 'abs_path';
use Term::ANSIColor qw(:constants);
use Encode qw(decode encode);
my $P = $0;
my $D = dirname(abs_path($P));
@ -2236,6 +2237,8 @@ sub process {
our $clean = 1;
my $signoff = 0;
my $author = '';
my $authorsignoff = 0;
my $is_patch = 0;
my $in_header_lines = $file ? 0 : 1;
my $in_commit_log = 0; #Scanning lines before patch
@ -2518,10 +2521,24 @@ sub process {
}
}
# Check the patch for a From:
if (decode("MIME-Header", $line) =~ /^From:\s*(.*)/) {
$author = $1;
$author = encode("utf8", $author) if ($line =~ /=\?utf-8\?/i);
$author =~ s/"//g;
}
# Check the patch for a signoff:
if ($line =~ /^\s*signed-off-by:/i) {
$signoff++;
$in_commit_log = 0;
if ($author ne '') {
my $l = $line;
$l =~ s/"//g;
if ($l =~ /^\s*signed-off-by:\s*\Q$author\E/i) {
$authorsignoff = 1;
}
}
}
# Check if MAINTAINERS is being updated. If so, there's probably no need to
@ -6507,9 +6524,14 @@ sub process {
ERROR("NOT_UNIFIED_DIFF",
"Does not appear to be a unified-diff format patch\n");
}
if ($is_patch && $has_commit_log && $chk_signoff && $signoff == 0) {
ERROR("MISSING_SIGN_OFF",
"Missing Signed-off-by: line(s)\n");
if ($is_patch && $has_commit_log && $chk_signoff) {
if ($signoff == 0) {
ERROR("MISSING_SIGN_OFF",
"Missing Signed-off-by: line(s)\n");
} elsif (!$authorsignoff) {
WARN("NO_AUTHOR_SIGN_OFF",
"Missing Signed-off-by: line by nominal patch author '$author'\n");
}
}
print report_dump();