Declare vb2_ops structures as const as they are only stored in
the ops field of a vb2_queue structure. This field is of type
const, so vb2_ops structures having same properties can be made
const too.
Done using Coccinelle:
@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct vb2_ops i@p={...};
@ok1@
identifier r1.i;
position p;
struct sta2x11_vip vip;
struct vb2_queue q;
@@
(
vip.vb_vidq.ops=&i@p
|
q.ops=&i@p
)
@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p
@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct vb2_ops i;
Cross compiled the media/platform/blackfin/bfin_capture.o file for
blackfin architecture.
File size before:
text data bss dec hex filename
6776 176 0 6952 1b28 platform/blackfin/bfin_capture.o
File size after:
text data bss dec hex filename
6816 136 0 6952 1b28 platform/blackfin/bfin_capture.o
File size before:
text data bss dec hex filename
12852 456 272 13580 350c platform/davinci/vpif_capture.o
File size after:
text data bss dec hex filename
12932 360 272 13564 34fc platform/davinci/vpif_capture.o
File size before:
text data bss dec hex filename
12285 360 276 12921 3279 platform/davinci/vpif_display.o
File size after:
text data bss dec hex filename
12365 296 276 12937 3289 platform/davinci/vpif_display.o
File size details before and after applying the patch remains the same for
drivers/media/platform/pxa_camera.o
Signed-off-by: Bhumika Goyal <bhumi...@gmail.com>
---
drivers/media/platform/davinci/vpif_capture.c | 2 +-
drivers/media/platform/davinci/vpif_display.c | 2 +-
drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 2 +-
drivers/media/platform/pxa_camera.c | 2 +-
4 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/platform/davinci/vpif_capture.c
b/drivers/media/platform/davinci/vpif_capture.c
index f791f5c..54c54d9 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -309,7 +309,7 @@ static void vpif_stop_streaming(struct vb2_queue *vq)
spin_unlock_irqrestore(&common->irqlock, flags);
}
-static struct vb2_ops video_qops = {
+static const struct vb2_ops video_qops = {
.queue_setup = vpif_buffer_queue_setup,
.buf_prepare = vpif_buffer_prepare,
.start_streaming = vpif_start_streaming,
diff --git a/drivers/media/platform/davinci/vpif_display.c
b/drivers/media/platform/davinci/vpif_display.c
index e5f1844..9604afd 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -289,7 +289,7 @@ static void vpif_stop_streaming(struct vb2_queue *vq)
spin_unlock_irqrestore(&common->irqlock, flags);
}
-static struct vb2_ops video_qops = {
+static const struct vb2_ops video_qops = {
.queue_setup = vpif_buffer_queue_setup,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
index 13afe48..3038d62 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c
@@ -621,7 +621,7 @@ static void mtk_mdp_m2m_buf_queue(struct vb2_buffer *vb)
v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));
}
-static struct vb2_ops mtk_mdp_m2m_qops = {
+static const struct vb2_ops mtk_mdp_m2m_qops = {
.queue_setup = mtk_mdp_m2m_queue_setup,
.buf_prepare = mtk_mdp_m2m_buf_prepare,
.buf_queue = mtk_mdp_m2m_buf_queue,
diff --git a/drivers/media/platform/pxa_camera.c
b/drivers/media/platform/pxa_camera.c
index 929006f..17167d1 100644
--- a/drivers/media/platform/pxa_camera.c
+++ b/drivers/media/platform/pxa_camera.c
@@ -1530,7 +1530,7 @@ static void pxac_vb2_stop_streaming(struct vb2_queue *vq)
pxa_camera_wakeup(pcdev, buf, VB2_BUF_STATE_ERROR);
}
-static struct vb2_ops pxac_vb2_ops = {
+static const struct vb2_ops pxac_vb2_ops = {
.queue_setup = pxac_vb2_queue_setup,
.buf_init = pxac_vb2_init,
.buf_prepare = pxac_vb2_prepare,
--
1.9.1
