Change checkpatch.pl tab expanding to 4 characters.

The C coding style guide says that tab width is 4 characters but checkpatch.pl expands tabs to 8 characters which produces false negatives.

Change-Id: Ibdabbb55269b7cf6bcd38042cccb8bd235e42ce2
Signed-off-by: Erik Ahlén <erik.ahlen@avalonenterprise.com>
Reviewed-on: http://openocd.zylin.com/275
Tested-by: jenkins
Reviewed-by: Øyvind Harboe <oyvindharboe@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/tools/scripts/checkpatch.pl b/tools/scripts/checkpatch.pl
index b7134f8a3cdc4ac398d3c29c2d1e26de816cbd22..1089c5113446afcb18e2fb27ae1ade4e6c7a0cbc 100755 (executable)
--- a/tools/scripts/checkpatch.pl
+++ b/tools/scripts/checkpatch.pl
@@ -504,7 +504,7 @@ sub expand_tabs {
                if ($c eq "\t") {
                        $res .= ' ';
                        $n++;
-                       for (; ($n % 8) != 0; $n++) {
+                       for (; ($n % 4) != 0; $n++) {
                                $res .= ' ';
                        }
                        next;