USB: replace remaining __FUNCTION__ occurrences

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 2c4fd4d..678fac8 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -1136,7 +1136,7 @@
 		dbg ("ep %02x bogus status: %04x != 0", ep, status);
 		return -EINVAL;
 	}
-	retval = simple_io (urb, 1, 0, 0, __FUNCTION__);
+	retval = simple_io (urb, 1, 0, 0, __func__);
 	if (retval != 0)
 		return -EINVAL;
 	return 0;
@@ -1158,7 +1158,7 @@
 		dbg ("ep %02x bogus status: %04x != 1", ep, status);
 		return -EINVAL;
 	}
-	retval = simple_io (urb, 1, 0, -EPIPE, __FUNCTION__);
+	retval = simple_io (urb, 1, 0, -EPIPE, __func__);
 	if (retval != -EPIPE)
 		return -EINVAL;
 	retval = simple_io (urb, 1, 0, -EPIPE, "verify_still_halted");