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Message-Id: <20230516202103.558301-1-arnd@kernel.org>
Date: Tue, 16 May 2023 22:17:42 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Alan Stern <stern@...land.harvard.edu>
Cc: Arnd Bergmann <arnd@...db.de>,
Sebastian Reichel <sebastian.reichel@...labora.com>,
Andrew Morton <akpm@...ux-foundation.org>,
linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: hide unused usbfs_notify_suspend/resume functions
From: Arnd Bergmann <arnd@...db.de>
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@...db.de>
---
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 e501a03d6c70..1622ad35428d 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -738,6 +738,7 @@ 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)
{
@@ -756,6 +757,7 @@ void usbfs_notify_resume(struct usb_device *udev)
}
mutex_unlock(&usbfs_mutex);
}
+#endif
struct usb_driver usbfs_driver = {
.name = "usbfs",
--
2.39.2
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