[PATCH] checkpatch: add an exclusion for 'for_each' helper macros

[Dan Williams <dan.j.williams@intel.com>]

checkpatch currently complains about macros like the following:

#define for_each_dma_cap_mask(cap, mask) \
	for ((cap) = first_dma_cap(mask);       \
		(cap) < DMA_TX_TYPE_END;        \
		(cap) = next_dma_cap((cap), (mask)))


Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

 scripts/checkpatch.pl |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index e216d49..ee6bac9 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -548,10 +548,10 @@ sub process {
 			}
 		}
 
-#multiline macros should be enclosed in a do while loop
+#multiline macros should be enclosed in a do while loop, unless they are a for_each helper
 		if (($prevline=~/\#define.*\\/) and !($prevline=~/do\s+{/) and
 		   !($prevline=~/\(\{/) and ($line=~/;\s*\\/) and
-		   !($line=~/do.*{/) and !($line=~/\(\{/)) {
+		   !($line=~/do.*{/) and !($line=~/\(\{/) and !($prevline=~/.*for_each.*/)) {
 			print "Macros with multiple statements should be enclosed in a do - while loop\n";
 			print "$hereprev";
 			$clean = 0;