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authorHimanshu Jha <himanshujha199640@gmail.com>2019-07-16 08:52:22 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-07-17 16:37:51 +0300
commitd09778d16e20bc4f1f4971cc9a9fd7ff6ba898ff (patch)
tree0511ae97c95b9ba224ea7c2c59863f9a53c4f47f /scripts
parent4bd01de8f201abb704ae9bda3af4ea9ba3a10b0a (diff)
downloadlinux-d09778d16e20bc4f1f4971cc9a9fd7ff6ba898ff.tar.xz
coccinelle: api: add devm_platform_ioremap_resource script
Use recently introduced devm_platform_ioremap_resource helper which wraps platform_get_resource() and devm_ioremap_resource() together. This helps produce much cleaner code and remove local `struct resource` declaration. Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/coccinelle/api/devm_platform_ioremap_resource.cocci60
1 files changed, 60 insertions, 0 deletions
diff --git a/scripts/coccinelle/api/devm_platform_ioremap_resource.cocci b/scripts/coccinelle/api/devm_platform_ioremap_resource.cocci
new file mode 100644
index 000000000000..56a2e261d61d
--- /dev/null
+++ b/scripts/coccinelle/api/devm_platform_ioremap_resource.cocci
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/// Use devm_platform_ioremap_resource helper which wraps
+/// platform_get_resource() and devm_ioremap_resource() together.
+///
+// Confidence: High
+// Copyright: (C) 2019 Himanshu Jha GPLv2.
+// Copyright: (C) 2019 Julia Lawall, Inria/LIP6. GPLv2.
+// Keywords: platform_get_resource, devm_ioremap_resource,
+// Keywords: devm_platform_ioremap_resource
+
+virtual patch
+virtual report
+
+@r depends on patch && !report@
+expression e1, e2, arg1, arg2, arg3;
+identifier id;
+@@
+
+(
+- id = platform_get_resource(arg1, IORESOURCE_MEM, arg2);
+|
+- struct resource *id = platform_get_resource(arg1, IORESOURCE_MEM, arg2);
+)
+ ... when != id
+- e1 = devm_ioremap_resource(arg3, id);
++ e1 = devm_platform_ioremap_resource(arg1, arg2);
+ ... when != id
+? id = e2
+
+@r1 depends on patch && !report@
+identifier r.id;
+type T;
+@@
+
+- T *id;
+ ...when != id
+
+@r2 depends on report && !patch@
+identifier id;
+expression e1, e2, arg1, arg2, arg3;
+position j0;
+@@
+
+(
+ id = platform_get_resource(arg1, IORESOURCE_MEM, arg2);
+|
+ struct resource *id = platform_get_resource(arg1, IORESOURCE_MEM, arg2);
+)
+ ... when != id
+ e1@j0 = devm_ioremap_resource(arg3, id);
+ ... when != id
+? id = e2
+
+@script:python depends on report && !patch@
+e1 << r2.e1;
+j0 << r2.j0;
+@@
+
+msg = "WARNING: Use devm_platform_ioremap_resource for %s" % (e1)
+coccilib.report.print_report(j0[0], msg)