Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 5/6] staging: bcm2835-camera: constify vb2_ops structures | Date | Sat, 5 Aug 2017 12:47:12 +0200 |
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These vb2_ops structures are only stored in the ops field of a vb2_queue structure, which is declared as const. Thus the vb2_ops structures themselves can be const.
Done with the help of Coccinelle.
// <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... };
@ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p;
@bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p
@depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; // </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
--- drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c index a11e047..5af758a 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -642,7 +642,7 @@ static void bm2835_mmal_unlock(struct vb2_queue *vq) mutex_unlock(&dev->mutex); } -static struct vb2_ops bm2835_mmal_video_qops = { +static const struct vb2_ops bm2835_mmal_video_qops = { .queue_setup = queue_setup, .buf_prepare = buffer_prepare, .buf_queue = buffer_queue,
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