[PATCH] media: cx18: make array mapping static, makes object smaller

From: Colin King
Date: Mon Oct 07 2019 - 05:52:46 EST


From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Don't populate the array mapping on the stack but instead make it
static. Makes the object code smaller by 79 bytes.

Before:
text data bss dec hex filename
27572 2096 0 29668 73e4 drivers/media/pci/cx18/cx18-ioctl.o

After:
text data bss dec hex filename
27429 2160 0 29589 7395 drivers/media/pci/cx18/cx18-ioctl.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/media/pci/cx18/cx18-ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx18/cx18-ioctl.c b/drivers/media/pci/cx18/cx18-ioctl.c
index 85f3e7307538..fa57e12f2ac8 100644
--- a/drivers/media/pci/cx18/cx18-ioctl.c
+++ b/drivers/media/pci/cx18/cx18-ioctl.c
@@ -664,7 +664,7 @@ static int _cx18_process_idx_data(struct cx18_buffer *buf,
struct cx18_enc_idx_entry *e_buf;

/* Frame type lookup: 1=I, 2=P, 4=B */
- const int mapping[8] = {
+ static const int mapping[8] = {
-1, V4L2_ENC_IDX_FRAME_I, V4L2_ENC_IDX_FRAME_P,
-1, V4L2_ENC_IDX_FRAME_B, -1, -1, -1
};
--
2.20.1