linux-kernel - [PATCH] coccinelle: api: kobj_to_dev: don't warn about kobj_to

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Date:   Tue,  1 Sep 2020 12:27:29 +0300
From:   Denis Efremov <efremov@...ux.com>
To:     Julia Lawall <Julia.Lawall@...6.fr>
Cc:     Denis Efremov <efremov@...ux.com>, cocci@...teme.lip6.fr,
        linux-kernel@...r.kernel.org
Subject: [PATCH] coccinelle: api: kobj_to_dev: don't warn about kobj_to_dev()

Exclude kobj_to_dev() definition from warnings.

Signed-off-by: Denis Efremov <efremov@...ux.com>
---
No changes in performance. This patch can be squashed to the
original patch with kobj_to_dev.cocci script.

 scripts/coccinelle/api/kobj_to_dev.cocci | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
index cd5d31c6fe76..d0b3b9647c19 100644
--- a/scripts/coccinelle/api/kobj_to_dev.cocci
+++ b/scripts/coccinelle/api/kobj_to_dev.cocci
@@ -15,10 +15,18 @@ virtual org
 virtual patch
 
 
+@...tialize:python@
+@@
+filter = frozenset(['kobj_to_dev'])
+
+def relevant(p):
+    return not (filter & {el.current_element for el in p})
+
+
 @r depends on !patch@
 expression ptr;
 symbol kobj;
-position p;
+position p : script:python() { relevant(p) };
 @@
 
 * container_of(ptr, struct device, kobj)@p
@@ -26,9 +34,10 @@ position p;
 
 @depends on patch@
 expression ptr;
+position p : script:python() { relevant(p) };
 @@
 
-- container_of(ptr, struct device, kobj)
+- container_of(ptr, struct device, kobj)@p
 + kobj_to_dev(ptr)
 
 
-- 
2.26.2