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Date: Sun, 12 Nov 2017 16:02:18 +0100 (CET)
From: Julia Lawall <julia.lawall@lip6.fr>
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To: Masahiro Yamada <yamada.masahiro@socionext.com>
cc: cocci@systeme.lip6.fr, Nicolas Palix <nicolas.palix@imag.fr>,
        Gilles Muller <Gilles.Muller@lip6.fr>, linux-kernel@vger.kernel.org,
        Michal Marek <michal.lkml@markovi.net>
Subject: [PATCH] coccinelle: use exists to improve efficiency
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This just needs to find any reassignment of the loop iterator, and doesn't
need such a thing on all execution paths, so use exists on the first rule.

Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>

---

diff --git a/scripts/coccinelle/iterators/list_entry_update.cocci b/scripts/coccinelle/iterators/list_entry_update.cocci
index 873f444..be6f9f1 100644
--- a/scripts/coccinelle/iterators/list_entry_update.cocci
+++ b/scripts/coccinelle/iterators/list_entry_update.cocci
@@ -15,7 +15,7 @@ virtual context
 virtual org
 virtual report

-@r@
+@r exists@
 iterator name list_for_each_entry;
 expression x,E;
 position p1,p2;