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Index: head/share/man/man9/device_quiet.9
===================================================================
--- head/share/man/man9/device_quiet.9
+++ head/share/man/man9/device_quiet.9
@@ -28,7 +28,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd June 21, 1999
+.Dd September 12, 2016
.Dt DEVICE_QUIET 9
.Os
.Sh NAME
@@ -49,16 +49,18 @@
Each device has a quiet flag associated with it.
A device is
verbose by default when it is created but may be quieted to prevent
-the device identification string to be printed during probe.
+printing of the device identification string during attach
+and printing of a message during detach.
To quiet a device, call
-.Fn device_quiet ,
-to re-enable to probe message (to make the message appear again, for
-example after a
-.Xr device_detach 9 )
+.Fn device_quiet
+during a device driver probe routine.
+To re-enable probe messages,
call
.Fn device_verbose .
To test to see if a device is quieted, call
.Fn device_is_quiet .
+.Pp
+Devices are implicitly marked verbose after a driver detaches.
.Sh SEE ALSO
.Xr device 9
.Sh AUTHORS
Index: head/sys/kern/subr_bus.c
===================================================================
--- head/sys/kern/subr_bus.c
+++ head/sys/kern/subr_bus.c
@@ -2146,6 +2146,12 @@
}
/*
+ * Reset DF_QUIET in case this driver doesn't
+ * end up as the best driver.
+ */
+ device_verbose(child);
+
+ /*
* Probes that return BUS_PROBE_NOWILDCARD or lower
* only match on devices whose driver was explicitly
* specified.
@@ -2970,6 +2976,7 @@
if (!(dev->flags & DF_FIXEDCLASS))
devclass_delete_device(dev->devclass, dev);
+ device_verbose(dev);
dev->state = DS_NOTPRESENT;
(void)device_set_driver(dev, NULL);
device_sysctl_fini(dev);

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