https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: 9abf2313adc1ca1b6180c508c25f22f9395cc780 authored by Linus Torvalds on 16 October 2022, 22:36:24 UTC
Linux 6.1-rc1
Linux 6.1-rc1
Tip revision: 9abf231
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: https://coccinelle.gitlabpages.inria.fr/website
// 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)