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scripts/coccinelle/api/devm_request_and_ioremap.cocci
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coccinelle: seman...
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/// Reimplement a call to devm_request_mem_region followed by a call to ioremap
/// or ioremap_nocache by a call to devm_request_and_ioremap.
/// Devm_request_and_ioremap was introduced in
/// 72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0. It makes the code much more
/// concise.
///
///
// Confidence: High
// Copyright: (C) 2011 Julia Lawall, INRIA/LIP6. GPLv2.
// Copyright: (C) 2011 Gilles Muller, INRIA/LiP6. GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments:
// Options: -no_includes -include_headers
virtual patch
virtual org
virtual report
virtual context
@nm@
expression myname;
identifier i;
@@
struct platform_driver i = { .driver = { .name = myname } };
@depends on patch@
expression dev,res,size;
@@
-if (!devm_request_mem_region(dev, res->start, size,
- \(res->name\|dev_name(dev)\))) {
- ...
- return ...;
-}
... when != res->start
(
-devm_ioremap(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
|
-devm_ioremap_nocache(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
)
... when any
when != res->start
// this rule is separate from the previous one, because a single file can
// have multiple values of myname
@depends on patch@
expression dev,res,size;
expression nm.myname;
@@
-if (!devm_request_mem_region(dev, res->start, size,myname)) {
- ...
- return ...;
-}
... when != res->start
(
-devm_ioremap(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
|
-devm_ioremap_nocache(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
)
... when any
when != res->start
@pb depends on org || report || context@
expression dev,res,size;
expression nm.myname;
position p1,p2;
@@
*if
(!devm_request_mem_region@p1(dev, res->start, size,
\(res->name\|dev_name(dev)\|myname\))) {
...
return ...;
}
... when != res->start
(
*devm_ioremap@p2(dev,res->start,size)
|
*devm_ioremap_nocache@p2(dev,res->start,size)
)
... when any
when != res->start
@script:python depends on org@
p1 << pb.p1;
p2 << pb.p2;
@@
cocci.print_main("INFO: replace by devm_request_and_ioremap",p1)
cocci.print_secs("",p2)
@script:python depends on report@
p1 << pb.p1;
p2 << pb.p2;
@@
msg = "INFO: devm_request_mem_region followed by ioremap on line %s can be replaced by devm_request_and_ioremap" % (p2[0].line)
coccilib.report.print_report(p1[0],msg)
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