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| author | Julia Lawall <Julia.Lawall@lip6.fr> | 2015-10-22 22:11:59 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2015-10-26 22:39:11 +0100 |
| commit | 41167d072b8626ed14e80241c71beb99ac65db53 (patch) | |
| tree | c4944a5ef348dfc73e1de8b2a1c3a9d414165b0a | |
| parent | 63a478fbc05cb0627b0a33a69f3aed8dcb965953 (diff) | |
cocinelle: iterators: semantic patch to delete unneeded of_node_put
Device node iterators perform an of_node_put on each iteration, so putting
an of_node_put before a continue results in a double put.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
| -rw-r--r-- | scripts/coccinelle/iterators/device_node_continue.cocci | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/scripts/coccinelle/iterators/device_node_continue.cocci b/scripts/coccinelle/iterators/device_node_continue.cocci new file mode 100644 index 000000000000..38ab744a4037 --- /dev/null +++ b/scripts/coccinelle/iterators/device_node_continue.cocci @@ -0,0 +1,100 @@ +/// Device node iterators put the previous value of the index variable, so an +/// explicit put causes a double put. +/// +// Confidence: High +// Copyright: (C) 2015 Julia Lawall, Inria. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Options: --no-includes --include-headers +// Keywords: for_each_child_of_node, etc. + +virtual patch +virtual context +virtual org +virtual report + +@r exists@ +expression e1,e2; +local idexpression n; +iterator name for_each_node_by_name, for_each_node_by_type, +for_each_compatible_node, for_each_matching_node, +for_each_matching_node_and_match, for_each_child_of_node, +for_each_available_child_of_node, for_each_node_with_property; +iterator i; +position p1,p2; +statement S; +@@ + +( +( +for_each_node_by_name(n,e1) S +| +for_each_node_by_type(n,e1) S +| +for_each_compatible_node(n,e1,e2) S +| +for_each_matching_node(n,e1) S +| +for_each_matching_node_and_match(n,e1,e2) S +| +for_each_child_of_node(e1,n) S +| +for_each_available_child_of_node(e1,n) S +| +for_each_node_with_property(n,e1) S +) +& +i@p1(...) { + ... when != of_node_get(n) + when any + of_node_put@p2(n); + ... when any +} +) + +@s exists@ +local idexpression r.n; +statement S; +position r.p1,r.p2; +iterator i; +@@ + + of_node_put@p2(n); + ... when any + i@p1(..., n, ...) + S + +@t depends on s && patch && !context && !org && !report@ +local idexpression n; +position r.p2; +@@ + +- of_node_put@p2(n); + +// ---------------------------------------------------------------------------- + +@t_context depends on s && !patch && (context || org || report)@ +local idexpression n; +position r.p2; +position j0; +@@ + +* of_node_put@j0@p2(n); + +// ---------------------------------------------------------------------------- + +@script:python t_org depends on org@ +j0 << t_context.j0; +@@ + +msg = "ERROR: probable double put." +coccilib.org.print_todo(j0[0], msg) + +// ---------------------------------------------------------------------------- + +@script:python t_report depends on report@ +j0 << t_context.j0; +@@ + +msg = "ERROR: probable double put." +coccilib.report.print_report(j0[0], msg) + |