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author | Michal Marek <mmarek@suse.cz> | 2010-12-14 22:01:55 +0100 |
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committer | Michal Marek <mmarek@suse.cz> | 2010-12-14 22:01:55 +0100 |
commit | 8990c1bc4be46473ad19bf2fa612ca57286f3df4 (patch) | |
tree | 3cea60576903a1d26c67e6ec62891b524d390e95 /scripts/coccinelle/iterators/list_entry_update.cocci | |
parent | 2979076fbf17a0947d6eba367b0cac19c907c160 (diff) | |
parent | c8ddb2713c624f432fa5fe3c7ecffcdda46ea0d4 (diff) | |
download | kernel_samsung_smdk4412-8990c1bc4be46473ad19bf2fa612ca57286f3df4.zip kernel_samsung_smdk4412-8990c1bc4be46473ad19bf2fa612ca57286f3df4.tar.gz kernel_samsung_smdk4412-8990c1bc4be46473ad19bf2fa612ca57286f3df4.tar.bz2 |
Merge commit 'v2.6.37-rc1' into kbuild/kbuild
Diffstat (limited to 'scripts/coccinelle/iterators/list_entry_update.cocci')
-rw-r--r-- | scripts/coccinelle/iterators/list_entry_update.cocci | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/scripts/coccinelle/iterators/list_entry_update.cocci b/scripts/coccinelle/iterators/list_entry_update.cocci new file mode 100644 index 0000000..b296747 --- /dev/null +++ b/scripts/coccinelle/iterators/list_entry_update.cocci @@ -0,0 +1,62 @@ +/// list_for_each_entry uses its first argument to get from one element of +/// the list to the next, so it is usually not a good idea to reassign it. +/// The first rule finds such a reassignment and the second rule checks +/// that there is a path from the reassignment back to the top of the loop. +/// +// Confidence: High +// 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@ +iterator name list_for_each_entry; +expression x,E; +position p1,p2; +@@ + +list_for_each_entry@p1(x,...) { <... x =@p2 E ...> } + +@depends on context && !org && !report@ +expression x,E; +position r.p1,r.p2; +statement S; +@@ + +*x =@p2 E +... +list_for_each_entry@p1(x,...) S + +// ------------------------------------------------------------------------ + +@back depends on (org || report) && !context exists@ +expression x,E; +position r.p1,r.p2; +statement S; +@@ + +x =@p2 E +... +list_for_each_entry@p1(x,...) S + +@script:python depends on back && org@ +p1 << r.p1; +p2 << r.p2; +@@ + +cocci.print_main("iterator",p1) +cocci.print_secs("update",p2) + +@script:python depends on back && report@ +p1 << r.p1; +p2 << r.p2; +@@ + +msg = "iterator with update on line %s" % (p2[0].line) +coccilib.report.print_report(p1[0],msg) |