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authorDenis Efremov <efremov@linux.com>2020-08-21 23:11:37 +0300
committerJulia Lawall <Julia.Lawall@lip6.fr>2020-08-21 23:35:48 +0300
commita2fc3718bc22e85378085568ecc5765fb28cabce (patch)
tree859695f621d21f6afe0d4668418e657c3a2166c3 /scripts/coccinelle
parent7a2624e6de03050c9f15af21c216818d5508b5e9 (diff)
downloadlinux-a2fc3718bc22e85378085568ecc5765fb28cabce.tar.xz
coccinelle: api: add kobj_to_dev.cocci script
Use kobj_to_dev() instead of container_of(). Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'scripts/coccinelle')
-rw-r--r--scripts/coccinelle/api/kobj_to_dev.cocci45
1 files changed, 45 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/kobj_to_dev.cocci b/scripts/coccinelle/api/kobj_to_dev.cocci
new file mode 100644
index 000000000000..cd5d31c6fe76
--- /dev/null
+++ b/scripts/coccinelle/api/kobj_to_dev.cocci
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-only
+///
+/// Use kobj_to_dev() instead of container_of()
+///
+// Confidence: High
+// Copyright: (C) 2020 Denis Efremov ISPRAS
+// Options: --no-includes --include-headers
+//
+// Keywords: kobj_to_dev, container_of
+//
+
+virtual context
+virtual report
+virtual org
+virtual patch
+
+
+@r depends on !patch@
+expression ptr;
+symbol kobj;
+position p;
+@@
+
+* container_of(ptr, struct device, kobj)@p
+
+
+@depends on patch@
+expression ptr;
+@@
+
+- container_of(ptr, struct device, kobj)
++ kobj_to_dev(ptr)
+
+
+@script:python depends on report@
+p << r.p;
+@@
+
+coccilib.report.print_report(p[0], "WARNING opportunity for kobj_to_dev()")
+
+@script:python depends on org@
+p << r.p;
+@@
+
+coccilib.org.print_todo(p[0], "WARNING opportunity for kobj_to_dev()")