On Wed, Sep 2, 2020 at 8:19 AM Denis Efremov <efre...@linux.com> wrote: > > Check for "!A || A && B" condition. It's equivalent to > "!A || B" condition. > > Signed-off-by: Denis Efremov <efre...@linux.com> > --- > scripts/coccinelle/misc/excluded_middle.cocci | 40 +++++++++++++++++++ > 1 file changed, 40 insertions(+) > create mode 100644 scripts/coccinelle/misc/excluded_middle.cocci > > diff --git a/scripts/coccinelle/misc/excluded_middle.cocci > b/scripts/coccinelle/misc/excluded_middle.cocci > new file mode 100644 > index 000000000000..1b8c20f13966 > --- /dev/null > +++ b/scripts/coccinelle/misc/excluded_middle.cocci > @@ -0,0 +1,40 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/// > +/// Condition "!A || A && B" is equalent to "!A || B".
s/equalent/equivalent/ > +/// > +// Confidence: High > +// Copyright: (C) 2020 Denis Efremov ISPRAS > +// Options: --no-includes --include-headers > + > +virtual patch > +virtual context > +virtual org > +virtual report > + > +@r depends on !patch@ > +expression A, B; > +position p; > +@@ > + > +* !A || (A && B)@p > + > +@depends on patch@ > +expression A, B; > +@@ > + > + !A || > +- (A && > + B > +- ) > + > +@script:python depends on report@ > +p << r.p; > +@@ > + > +coccilib.report.print_report(p[0], "WARNING condition !A || A && B is > equivalent to !A || B") > + > +@script:python depends on org@ > +p << r.p; > +@@ > + > +coccilib.org.print_todo(p[0], "WARNING condition !A || A && B is equivalent > to !A || B") > -- > 2.26.2 > > _______________________________________________ > Cocci mailing list > co...@systeme.lip6.fr > https://systeme.lip6.fr/mailman/listinfo/cocci -- Jim
