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linux/scripts/coccinelle/tests/doublebitand.cocci

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 16:11:38 +08:00
// SPDX-License-Identifier: GPL-2.0-only
Coccinelle: Find doubled arguments to boolean or bit operators. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Nicolas Palix <npalix.work@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-25 05:37:32 +08:00
/// Find bit operations that include the same argument more than once
//# One source of false positives is when the argument performs a side
//# effect. Another source of false positives is when a neutral value
//# such as 0 for | is used to indicate no information, to maintain the
//# same structure as other similar expressions
///
// Confidence: Moderate
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 Based on 1 normalized pattern(s): gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 58 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-04 16:11:38 +08:00
// Copyright: (C) 2010 Nicolas Palix, DIKU.
// Copyright: (C) 2010 Julia Lawall, DIKU.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6.
Coccinelle: Find doubled arguments to boolean or bit operators. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Nicolas Palix <npalix.work@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-25 05:37:32 +08:00
// URL: http://coccinelle.lip6.fr/
// Comments:
Coccinelle: Update the options used to the new option scheme spatch has changed its option scheme. E.g., --no_show_diff is now --no-show-diff This patch updates: - scripts/coccicheck - Semantic patches under scripts/coccinelle/ Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-06-20 19:10:56 +08:00
// Options: --no-includes --include-headers
Coccinelle: Find doubled arguments to boolean or bit operators. Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Nicolas Palix <npalix.work@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-10-25 05:37:32 +08:00
virtual context
virtual org
virtual report
@r expression@
expression E;
position p;
@@
(
* E@p
& ... & E
|
* E@p
| ... | E
|
* E@p
& ... & !E
|
* E@p
| ... | !E
|
* !E@p
& ... & E
|
* !E@p
| ... | E
)
@script:python depends on org@
p << r.p;
@@
cocci.print_main("duplicated argument to & or |",p)
@script:python depends on report@
p << r.p;
@@
coccilib.report.print_report(p[0],"duplicated argument to & or |")