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Subject[PATCH] media: platform: sti: make a const array static, makes object smaller
Date
From: Colin Ian King <colin.king@canonical.com>

Don't populate the const array bws on the stack but instead it
static. Makes the object code smaller by 8 bytes:

Before:
text data bss dec hex filename
12504 4568 0 17072 42b0 media/platform/sti/hva/hva-h264.o

After:
text data bss dec hex filename
12272 4792 0 17064 42a8 media/platform/sti/hva/hva-h264.o

(gcc version 10.2.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
drivers/media/platform/sti/hva/hva-h264.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/sti/hva/hva-h264.c b/drivers/media/platform/sti/hva/hva-h264.c
index c34f7cf5aed2..98cb00d2d868 100644
--- a/drivers/media/platform/sti/hva/hva-h264.c
+++ b/drivers/media/platform/sti/hva/hva-h264.c
@@ -428,8 +428,10 @@ static int hva_h264_fill_slice_header(struct hva_ctx *pctx,
*/
struct device *dev = ctx_to_dev(pctx);
int cabac = V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC;
- const unsigned char slice_header[] = { 0x00, 0x00, 0x00, 0x01,
- 0x41, 0x34, 0x07, 0x00};
+ static const unsigned char slice_header[] = {
+ 0x00, 0x00, 0x00, 0x01,
+ 0x41, 0x34, 0x07, 0x00
+ };
int idr_pic_id = frame_num % 2;
enum hva_picture_coding_type type;
u32 frame_order = frame_num % ctrls->gop_size;
@@ -488,7 +490,7 @@ static int hva_h264_fill_data_nal(struct hva_ctx *pctx,
unsigned int stream_size, unsigned int *size)
{
struct device *dev = ctx_to_dev(pctx);
- const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };
+ static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };

dev_dbg(dev, "%s %s stuffing bytes %d\n", pctx->name, __func__,
stuffing_bytes);
@@ -521,7 +523,7 @@ static int hva_h264_fill_sei_nal(struct hva_ctx *pctx,
u8 *addr, u32 *size)
{
struct device *dev = ctx_to_dev(pctx);
- const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };
+ static const u8 start[] = { 0x00, 0x00, 0x00, 0x01 };
struct hva_h264_stereo_video_sei info;
u8 offset = 7;
u8 msg = 0;
--
2.29.2
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