Skip patches generation for structs/unions with a single field.
Changing a zero-length array to a flexible array member in a struct
with no named members breaks the compilation. However, reporting
such cases is still valuable, e.g. commit 637464c59e0b
("ACPI: NFIT: Fix flexible_array.cocci warnings").
Signed-off-by: Denis Efremov <efre...@linux.com>
---
scripts/coccinelle/misc/flexible_array.cocci | 23 ++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/scripts/coccinelle/misc/flexible_array.cocci
b/scripts/coccinelle/misc/flexible_array.cocci
index 947fbaff82a9..f427fd68ed2d 100644
--- a/scripts/coccinelle/misc/flexible_array.cocci
+++ b/scripts/coccinelle/misc/flexible_array.cocci
@@ -51,21 +51,40 @@ position p : script:python() { relevant(p) };
};
)
+@only_field depends on patch@
+identifier name, array;
+type T;
+position q;
+@@
+
+(
+ struct name {@q
+ T array[0];
+ };
+|
+ struct {@q
+ T array[0];
+ };
+)
+
@depends on patch@
identifier name, array;
type T;
position p : script:python() { relevant(p) };
+// position @q with rule "only_field" simplifies
+// handling of bitfields, arrays, etc.
+position q != only_field.q;
@@
(
- struct name {
+ struct name {@q
...
T array@p[
- 0
];
};
|
- struct {
+ struct {@q
...
T array@p[
- 0
--
2.26.2
