[PATCH-resend] checkpatch: add __rcu as a sparse modifier

[Sven Eckelmann <sven@narfation.org>]

Fix "need consistent spacing around '*'" error after a __rcu sparse
annotation which was caused by the missing __rcu entry in the
checkpatch.pl internal list of sparse keywords.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Cc: Andy Whitcroft <apw@canonical.com>
---
I reported that problem 2 1/2 months ago and then send the patch 3 weeks
ago, but never got a reaction. Therefore I resend the patch to Andrew
Morton instead of Andy Whitcroft. He seems to have been responsible for
the last checkpatch.pl-patches.

Btw. thanks Eric Dumazet for the Acked-by.

 scripts/checkpatch.pl |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index d867081..9dc3800 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -145,7 +145,8 @@ our $Sparse	= qr{
 			__must_check|
 			__init_refok|
 			__kprobes|
-			__ref
+			__ref|
+			__rcu
 		}x;
 
 # Notes to $Attribute:
-- 
1.7.5.3