commit e5070e0719c7e7303b1441e98a385709e19dadd6
author Colin Ian King <colin.king@canonical.com> Wed Sep 26 09:32:08 2018 +0100
committer Marcel Holtmann <marcel@holtmann.org> Thu Sep 27 12:26:21 2018 +0200
tree 98e2e596dd21df8a794d0e447685a4a1e4631a42
parent 5a637751e216de2cad77f24f92b9e97e61e459d9

Bluetooth: btrtl: Make array extension_sig static, shrinks object size

Don't populate the array extension_sig on the stack but instead make it
static. Makes the object code smaller by 75 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
  14325	   4920	      0	  19245	   4b2d	drivers/bluetooth/btrtl.o

After:
   text	   data	    bss	    dec	    hex	filename
  14186	   4984	      0	  19170	   4ae2	drivers/bluetooth/btrtl.o

(gcc version 8.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/btrtl.c

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 7f9ea8e..52a9a55 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -206,7 +206,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
 				struct btrtl_device_info *btrtl_dev,
 				unsigned char **_buf)
 {
-	const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
+	static const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 };
 	struct rtl_epatch_header *epatch_info;
 	unsigned char *buf;
 	int i, len;