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[5.4,152/434] Bluetooth: btusb: avoid unused function warning

Message ID 20191229172711.854616098@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Dec. 29, 2019, 5:23 p.m. UTC 
From: Arnd Bergmann <arnd@arndb.de>


[ Upstream commit 42d22098127d6384f789107f59caae87d7520fc4 ]

The btusb_rtl_cmd_timeout() function is used inside of an
ifdef, leading to a warning when this part is hidden
from the compiler:

drivers/bluetooth/btusb.c:530:13: error: unused function 'btusb_rtl_cmd_timeout' [-Werror,-Wunused-function]

Use an IS_ENABLED() check instead so the compiler can see
the code and then discard it silently.

Fixes: d7ef0d1e3968 ("Bluetooth: btusb: Use cmd_timeout to reset Realtek device")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Signed-off-by: Sasha Levin <sashal@kernel.org>

---
 drivers/bluetooth/btusb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

-- 
2.20.1
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Patch

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index a9c35ebb30f8..23e606aaaea4 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -3807,8 +3807,8 @@  static int btusb_probe(struct usb_interface *intf,
 		btusb_check_needs_reset_resume(intf);
 	}
 
-#ifdef CONFIG_BT_HCIBTUSB_RTL
-	if (id->driver_info & BTUSB_REALTEK) {
+	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
+	    (id->driver_info & BTUSB_REALTEK)) {
 		hdev->setup = btrtl_setup_realtek;
 		hdev->shutdown = btrtl_shutdown_realtek;
 		hdev->cmd_timeout = btusb_rtl_cmd_timeout;
@@ -3819,7 +3819,6 @@  static int btusb_probe(struct usb_interface *intf,
 		 */
 		set_bit(BTUSB_WAKEUP_DISABLE, &data->flags);
 	}
-#endif
 
 	if (id->driver_info & BTUSB_AMP) {
 		/* AMP controllers do not support SCO packets */