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Groups > linux.kernel > #1480827
| From | Julia Lawall <Julia.Lawall@lip6.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/3] [media] mxl111sf-tuner: constify dvb_tuner_ops structures |
| Date | 2016-09-11 17:10 +0200 |
| Message-ID | <sgeym-7M2-19@gated-at.bofh.it> (permalink) |
| References | <sgeym-7M2-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
These structures are only used to copy into other structures, so declare
them as const.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct dvb_tuner_ops i@p = { ... };
@ok1@
identifier r.i;
expression e;
position p;
@@
e = i@p
@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
memcpy(e1, &i@p, e2)
@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct dvb_tuner_ops e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct dvb_tuner_ops i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
---
drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c b/drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c
index 7d16252..f141dcc 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf-tuner.c
@@ -466,7 +466,7 @@ static int mxl111sf_tuner_release(struct dvb_frontend *fe)
/* ------------------------------------------------------------------------- */
-static struct dvb_tuner_ops mxl111sf_tuner_tuner_ops = {
+static const struct dvb_tuner_ops mxl111sf_tuner_tuner_ops = {
.info = {
.name = "MaxLinear MxL111SF",
#if 0
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[PATCH 3/3] [media] mxl111sf-tuner: constify dvb_tuner_ops structures Julia Lawall <Julia.Lawall@lip6.fr> - 2016-09-11 17:10 +0200
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