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author | Michal Marek <mmarek@suse.cz> | 2011-03-09 16:15:44 +0100 |
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committer | Michal Marek <mmarek@suse.cz> | 2011-03-09 16:15:44 +0100 |
commit | 2d8ad8719591fa803b0d589ed057fa46f49b7155 (patch) | |
tree | 4ae051577dad1161c91dafbf4207bb10a9dc91bb /scripts/coccinelle/tests/doublebitand.cocci | |
parent | 9b4ce7bce5f30712fd926ab4599a803314a07719 (diff) | |
parent | c56eb8fb6dccb83d9fe62fd4dc00c834de9bc470 (diff) | |
download | lwn-2d8ad8719591fa803b0d589ed057fa46f49b7155.tar.gz lwn-2d8ad8719591fa803b0d589ed057fa46f49b7155.zip |
Merge commit 'v2.6.38-rc1' into kbuild/packaging
Diffstat (limited to 'scripts/coccinelle/tests/doublebitand.cocci')
-rw-r--r-- | scripts/coccinelle/tests/doublebitand.cocci | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/scripts/coccinelle/tests/doublebitand.cocci b/scripts/coccinelle/tests/doublebitand.cocci new file mode 100644 index 000000000000..9ba73d05a77e --- /dev/null +++ b/scripts/coccinelle/tests/doublebitand.cocci @@ -0,0 +1,54 @@ +/// 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 +// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2. +// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2. +// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: +// Options: -no_includes -include_headers + +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 |") |