[PATCH] Bluetooth: make hw_err static, reduces object code size

From: Colin King
Date: Thu Jan 24 2019 - 12:23:00 EST


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

Don't populate the const array hw_err on the stack but instead make
it static. Makes the object code smaller by 45 bytes:

Before:
text data bss dec hex filename
100880 21090 1088 123058 1e0b2 linux/net/bluetooth/hci_core.o

After:
text data bss dec hex filename
100739 21186 1088 123013 1e085 linux/net/bluetooth/hci_core.o

(gcc version 8.2.0 x86_64)

Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
net/bluetooth/hci_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7352fe85674b..40cd6b48473a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3401,7 +3401,7 @@ EXPORT_SYMBOL(hci_resume_dev);
/* Reset HCI device */
int hci_reset_dev(struct hci_dev *hdev)
{
- const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 };
+ static const u8 hw_err[] = { HCI_EV_HARDWARE_ERROR, 0x01, 0x00 };
struct sk_buff *skb;

skb = bt_skb_alloc(3, GFP_ATOMIC);
--
2.19.1