Date: Mon, 12 Sep 2016 18:06:42 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305751 - in head: share/man/man9 sys/kern Message-ID: <201609121806.u8CI6gqg037489@repo.freebsd.org>
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Author: jhb Date: Mon Sep 12 18:06:42 2016 New Revision: 305751 URL: https://svnweb.freebsd.org/changeset/base/305751 Log: Make device_quiet() an attachment property. In particular, reset the DF_QUIET flag when detaching from a device so that a driver that marks a device quiet doesn't dictate policy for a different driver that may claim the device in the future. Reviewed by: rpokala, wblock MFC after: 2 weeks Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D7803 Modified: head/share/man/man9/device_quiet.9 head/sys/kern/subr_bus.c Modified: head/share/man/man9/device_quiet.9 ============================================================================== --- head/share/man/man9/device_quiet.9 Mon Sep 12 17:35:45 2016 (r305750) +++ head/share/man/man9/device_quiet.9 Mon Sep 12 18:06:42 2016 (r305751) @@ -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 Modified: head/sys/kern/subr_bus.c ============================================================================== --- head/sys/kern/subr_bus.c Mon Sep 12 17:35:45 2016 (r305750) +++ head/sys/kern/subr_bus.c Mon Sep 12 18:06:42 2016 (r305751) @@ -2146,6 +2146,12 @@ device_probe_child(device_t dev, device_ } /* + * 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 @@ device_detach(device_t dev) 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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