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>

diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 7f9ea8e4c1b227b56182ba83751a2f03bc670a07..52a9a55057c097fcab58f5feb0881c031ed8080b 100644 (file)
--- 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;