Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 2/6] [media] media: davinci: vpbe: constify vb2_ops structures | Date | Sat, 5 Aug 2017 12:47:09 +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/media/platform/davinci/vpbe_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c index ca2adfa..13d0270 100644 --- a/drivers/media/platform/davinci/vpbe_display.c +++ b/drivers/media/platform/davinci/vpbe_display.c @@ -355,7 +355,7 @@ static void vpbe_stop_streaming(struct vb2_queue *vq) spin_unlock_irqrestore(&disp->dma_queue_lock, flags); } -static struct vb2_ops video_qops = { +static const struct vb2_ops video_qops = { .queue_setup = vpbe_buffer_queue_setup, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish,
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