JFIF$        dd7 

Viewing File: /usr/src/kernels/5.14.0-503.33.1.el9_5.x86_64/scripts/coccinelle/misc/returnvar.cocci

// SPDX-License-Identifier: GPL-2.0-only
///
/// Remove unneeded variable used to store return value.
///
// Confidence: Moderate
// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6.
// URL: http://coccinelle.lip6.fr/
// Comments: Comments on code can be deleted if near code that is removed.
//           "when strict" can be removed to get more hits, but adds false
//           positives
// Options: --no-includes --include-headers

virtual patch
virtual report
virtual context
virtual org

@depends on patch@
type T;
constant C;
identifier ret;
@@
- T ret = C;
... when != ret
    when strict
return
- ret
+ C
;

@depends on context@
type T;
constant C;
identifier ret;
@@
* T ret = C;
... when != ret
    when strict
* return ret;

@r1 depends on report || org@
type T;
constant C;
identifier ret;
position p1, p2;
@@
T ret@p1 = C;
... when != ret
    when strict
return ret@p2;

@script:python depends on report@
p1 << r1.p1;
p2 << r1.p2;
C << r1.C;
ret << r1.ret;
@@
coccilib.report.print_report(p1[0], "Unneeded variable: \"" + ret + "\". Return \"" + C + "\" on line " + p2[0].line)

@script:python depends on org@
p1 << r1.p1;
p2 << r1.p2;
C << r1.C;
ret << r1.ret;
@@
cocci.print_main("unneeded \"" + ret + "\" variable", p1)
cocci.print_sec("return " + C + " here", p2)
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