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checkpatch: fix SPDX license check with --root=<path> 

checkpatch uses the in-kernel script spdxcheck.py to validate the specific
license in a file or script.

This check can currently fail for a couple reasons:

o spdxcheck.py assumes the existence of git tree that may not
  exist for a bare source tree from something like a tarball
o the spdxcheck.py must be run from the top level root directory

So add a git existence test and set the subprocess subdirectory.

Link: http://lkml.kernel.org/r/2b32864324ae9c92948b002ec4c0c22409ed98f1.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Charlemagne Lasse <charlemagnelasse@gmail.com>
Tested-by: Charlemagne Lasse <charlemagnelasse@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2018-08-21 21:58:04 -07:00 committed by Linus Torvalds
parent 490b292c83
commit 5629411279
1 changed files with 3 additions and 2 deletions
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5
scripts/checkpatch.pl
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@ -852,9 +852,10 @@ sub is_maintained_obsolete {
sub is_SPDX_License_valid {
my ($license) = @_;
return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py"));
return 1 if (!$tree || which("python") eq "" || !(-e "$root/scripts/spdxcheck.py") || !(-e "$root/.git"));
my $status = `echo "$license" | python $root/scripts/spdxcheck.py -`;
my $root_path = abs_path($root);
my $status = `cd "$root_path"; echo "$license" | python scripts/spdxcheck.py -`;
return 0 if ($status ne "");
return 1;
}