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checkpatch: validate MODULE_LICENSE content 

There is a well defined list of expected values for MODULE_LICENSE so warn
the user upon usage of unknown values.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bjorn Andersson 2015-06-25 15:03:24 -07:00 committed by Linus Torvalds
parent 10895d2c82
commit 5a6d20ce19
1 changed files with 18 additions and 0 deletions
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18
scripts/checkpatch.pl
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@ -5626,6 +5626,24 @@ sub process {
}
}
}
# validate content of MODULE_LICENSE against list from include/linux/module.h
if ($line =~ /\bMODULE_LICENSE\s*\(\s*($String)\s*\)/) {
my $extracted_string = get_quoted_string($line, $rawline);
my $valid_licenses = qr{
GPL|
GPL\ v2|
GPL\ and\ additional\ rights|
Dual\ BSD/GPL|
Dual\ MIT/GPL|
Dual\ MPL/GPL|
Proprietary
}x;
if ($extracted_string !~ /^"(?:$valid_licenses)"$/x) {
WARN("MODULE_LICENSE",
"unknown module license " . $extracted_string . "\n" . $herecurr);
}
}
}
# If we have no input at all, then there is nothing to report on