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| author | Michal Marek <mmarek@suse.cz> | 2010-06-12 00:01:31 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-06-12 00:01:31 +0200 |
| commit | 6ff21517c001f38b02393ad9dc92decbaee209fa (patch) | |
| tree | 7cd980dd3d869613669847ccda444459f6fdf0e4 /scripts/coccinelle/alloc/kzalloc-simple.cocci | |
| parent | b396aa03084b51f6822052a8070703287f198360 (diff) | |
| parent | 82c4340b0a3ccf090ef38fa111363018cf0594c8 (diff) | |
| download | op-kernel-dev-6ff21517c001f38b02393ad9dc92decbaee209fa.zip op-kernel-dev-6ff21517c001f38b02393ad9dc92decbaee209fa.tar.gz | |
Merge branch 'kbuild/coccinelle' into kbuild/misc
Diffstat (limited to 'scripts/coccinelle/alloc/kzalloc-simple.cocci')
| -rw-r--r-- | scripts/coccinelle/alloc/kzalloc-simple.cocci | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/scripts/coccinelle/alloc/kzalloc-simple.cocci b/scripts/coccinelle/alloc/kzalloc-simple.cocci new file mode 100644 index 0000000..2eae828 --- /dev/null +++ b/scripts/coccinelle/alloc/kzalloc-simple.cocci @@ -0,0 +1,82 @@ +/// +/// kzalloc should be used rather than kmalloc followed by memset 0 +/// +// Confidence: High +// Copyright: (C) 2009-2010 Julia Lawall, Nicolas Palix, DIKU. GPLv2. +// Copyright: (C) 2009-2010 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/rules/kzalloc.html +// Options: -no_includes -include_headers +// +// Keywords: kmalloc, kzalloc +// Version min: < 2.6.12 kmalloc +// Version min: 2.6.14 kzalloc +// + +virtual context +virtual patch +virtual org +virtual report + +//---------------------------------------------------------- +// For context mode +//---------------------------------------------------------- + +@depends on context@ +type T, T2; +expression x; +expression E1,E2; +statement S; +@@ + +* x = (T)kmalloc(E1,E2); + if ((x==NULL) || ...) S +* memset((T2)x,0,E1); + +//---------------------------------------------------------- +// For patch mode +//---------------------------------------------------------- + +@depends on patch@ +type T, T2; +expression x; +expression E1,E2; +statement S; +@@ + +- x = (T)kmalloc(E1,E2); ++ x = kzalloc(E1,E2); + if ((x==NULL) || ...) S +- memset((T2)x,0,E1); + +//---------------------------------------------------------- +// For org mode +//---------------------------------------------------------- + +@r depends on org || report@ +type T, T2; +expression x; +expression E1,E2; +statement S; +position p; +@@ + + x = (T)kmalloc@p(E1,E2); + if ((x==NULL) || ...) S + memset((T2)x,0,E1); + +@script:python depends on org@ +p << r.p; +x << r.x; +@@ + +msg="%s" % (x) +msg_safe=msg.replace("[","@(").replace("]",")") +coccilib.org.print_todo(p[0], msg_safe) + +@script:python depends on report@ +p << r.p; +x << r.x; +@@ + +msg="WARNING: kzalloc should be used for %s, instead of kmalloc/memset" % (x) +coccilib.report.print_report(p[0], msg) |
