[PATCH 6.4 593/800] usb: hide unused usbfs_notify_suspend/resume functions

Greg Kroah-Hartman
2023-07-16T20:21:24Z

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 8e6bd945e6dde64fbc60ec3fe252164493a8d3a2 ]

The declaration is in an #ifdef, which causes warnings when building
with 'make W=1' and without CONFIG_PM:

drivers/usb/core/devio.c:742:6: error: no previous prototype for 'usbfs_notify_suspend'
drivers/usb/core/devio.c:747:6: error: no previous prototype for 'usbfs_notify_resume'

Use the same #ifdef check around the function definitions to avoid
the warnings and slightly shrink the USB core.

Fixes: 7794f486ed0b ("usbfs: Add ioctls for runtime power management")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20230516202103.558301-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/core/devio.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index fcf68818e9992..cbad2af5fd882 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -746,6 +746,7 @@ static int driver_resume(struct usb_interface *intf)
return 0;
}

+#ifdef CONFIG_PM
/* The following routines apply to the entire device, not interfaces */
void usbfs_notify_suspend(struct usb_device *udev)
{
@@ -764,6 +765,7 @@ void usbfs_notify_resume(struct usb_device *udev)
}
mutex_unlock(&usbfs_mutex);
}
+#endif

struct usb_driver usbfs_driver = {
.name = "usbfs",
--
2.39.2