[PATCH 07/13] checkpatch: suspect code indent must stop at #else/#elif

[Andy Whitcroft <apw@shadowen.org>]

When we hit and #else or #elif we know we are meeting an alternative
piece of code.  All bets are off on indent if we did not see the open of
the control so stop checking.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
---
 scripts/checkpatch.pl |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4680ccf..c479bde 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1468,6 +1468,12 @@ sub process {
 			while ($cond_ptr != $cond_lines) {
 				$cond_ptr = $cond_lines;
 
+				# If we see an #else/#elif then the code
+				# is not linear.
+				if ($s =~ /^\s*\#\s*(?:else|elif)/) {
+					$check = 0;
+				}
+
 				# Ignore:
 				#  1) blank lines, they should be at 0,
 				#  2) preprocessor lines, and
-- 
1.6.0.1.451.gc8d31