linux-kernel - [PATCH 07/18] Coccinelle: Add iterators/fen.cocci

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Date:	Tue, 24 Aug 2010 17:39:01 +0200
From:	Nicolas Palix <npalix@...u.dk>
To:	Julia Lawall <julia@...u.dk>,
	Gilles Muller <Gilles.Muller@...6.fr>,
	Nicolas Palix <npalix@...u.dk>, Michal Marek <mmarek@...e.cz>
Cc:	cocci@...u.dk, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org, Nicolas Palix <npalix@...u.dk>
Subject: [PATCH 07/18] Coccinelle: Add iterators/fen.cocci

for_each_node iterators only exit normally when the loop cursor is
NULL, so there is no point to call of_node_put on the final value.

Signed-off-by: Nicolas Palix <npalix@...u.dk>
Signed-off-by: Julia Lawall <julia@...u.dk>
---
 scripts/coccinelle/iterators/fen.cocci |   64 ++++++++++++++++++++++++++++++++
 1 files changed, 64 insertions(+), 0 deletions(-)
 create mode 100644 scripts/coccinelle/iterators/fen.cocci

diff --git a/scripts/coccinelle/iterators/fen.cocci b/scripts/coccinelle/iterators/fen.cocci
new file mode 100644
index 0000000..77bc108
--- /dev/null
+++ b/scripts/coccinelle/iterators/fen.cocci
@@ -0,0 +1,64 @@
+/// These iterators only exit normally when the loop cursor is NULL, so there
+/// is no point to call of_node_put on the final value.
+///
+// Confidence: High
+// Copyright: (C) 2010 Nicolas Palix, DIKU.  GPLv2.
+// Copyright: (C) 2010 Julia Lawall, DIKU.  GPLv2.
+// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.  GPLv2.
+// URL: http://coccinelle.lip6.fr/
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual patch
+
+@@
+iterator name for_each_node_by_name;
+expression np,E;
+identifier l;
+@@
+
+for_each_node_by_name(np,...) {
+  ... when != break;
+      when != goto l;
+}
+... when != np = E
+- of_node_put(np);
+
+@@
+iterator name for_each_node_by_type;
+expression np,E;
+identifier l;
+@@
+
+for_each_node_by_type(np,...) {
+  ... when != break;
+      when != goto l;
+}
+... when != np = E
+- of_node_put(np);
+
+@@
+iterator name for_each_compatible_node;
+expression np,E;
+identifier l;
+@@
+
+for_each_compatible_node(np,...) {
+  ... when != break;
+      when != goto l;
+}
+... when != np = E
+- of_node_put(np);
+
+@@
+iterator name for_each_matching_node;
+expression np,E;
+identifier l;
+@@
+
+for_each_matching_node(np,...) {
+  ... when != break;
+      when != goto l;
+}
+... when != np = E
+- of_node_put(np);
-- 
1.7.0.4

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