[PATCH] HID: hid-lg: make array cbuf static const to shink object code size

From: Colin King
Date: Fri Aug 25 2017 - 13:12:59 EST


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

Don't populate array cbuf on the stack, instead make it static.
Makes the object code smaller by over 110 bytes:

Before:
text data bss dec hex filename
15096 3504 128 18728 4928 drivers/hid/hid-lg.o

After:
text data bss dec hex filename
14884 3600 128 18612 48b4 drivers/hid/hid-lg.o

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/hid/hid-lg.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 52026dc94d5c..596227ddb6e0 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -756,7 +756,9 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)

/* Setup wireless link with Logitech Wii wheel */
if (hdev->product == USB_DEVICE_ID_LOGITECH_WII_WHEEL) {
- const unsigned char cbuf[] = { 0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ static const unsigned char cbuf[] = {
+ 0x00, 0xAF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
u8 *buf = kmemdup(cbuf, sizeof(cbuf), GFP_KERNEL);

if (!buf) {
--
2.14.1