From nobody Wed Feb 5 19:49:48 2025 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4Yp9ms2R1kz5mHkf; Wed, 05 Feb 2025 19:49:49 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Yp9mr6mWlz3v4P; Wed, 05 Feb 2025 19:49:48 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1738784989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=7SCdxApeUDBveBTqJwovemzyanHePTplhvvaHEyVcvE=; b=ysmRKZK5fcmVd/86r7Dk9I1IvnFpTADt2Z0A72LTmmF11Hv2Z92aGclAjUcKi2ZS/6iH98 Q171Yfls9AM+WgoGnN+woMNKBmDrdRceARctRPfCEBM88GlA7aWymBTNfKzEji+AjDte4p Vlc4DbiSFj8rOcLeUnH03Ml2klhhDcqRju9dX77WRNen3dFf4fw5EnR5rFM1Qo7tPpJXZT NwidaJ3gSEQzycPFuBTyOK3N+QyyfFRua5jyC5hMYY+St+vH2q1pqS2SGc68fGWG2Fnjmx Y9kX/rkUnCBseqA5iJhFekRuBKD3rILpQrNzl+jzoFL2aGfj75bn4KwknGonLg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1738784989; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=7SCdxApeUDBveBTqJwovemzyanHePTplhvvaHEyVcvE=; b=RavNhHIMBa5DNuclzWhRiVvTbqeSLTjI29J8eri7z5Exe+pBTIydbfA5FMt0xms1RSSOPi 14+QJwuUEald7GluU6nwqcxo56ghuqWr7alYfoRy0WgBkSH0CilzxhW+AWk4txw+6rM7xA vIykBI2JQm4CtH3jOPFiUKZ7c9mx9tbTtFDJI3WDGS/MVmAsJcT8UlXgq3BwvJT8bMUz+g bqzaXvMEzDlC940FjHrDCIgFoffQqwsLhzcDPk9b58Uzyc/2DxE2FxYO8nZEDpzMnBjO12 uwy7rVs8CyZfNdj0f8MQfqlUbLdzq2mXxnbXaUfoD2VNeFeiwXK+tYknKWr0bg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1738784989; a=rsa-sha256; cv=none; b=igutPPKCZAsQm+FnezqyS2oJa2ofSG3irrWdAcx0/LBV8zNn6YIHakD/v3awqzu4+ourBm Zpy0xo5QjtMHetdnlz22otPeVX3kpbCJJkCDo8+5a4WUVTBHYwzwY7Tf9S2a5WdCLyjklY jYd2IUuUCwKWvs9ZsP8nujPgTrCowH8giEp0eaPE0/7p/4qD+KWJ1/djWoFRXxMbUcIDXF zq+AMhrSadgt0MtbNaoWLhMNT7pQcbDxsT5GyTLVmf16JmQgXBxXFWM0h9QJ4SCM7RKsy9 fxktYdrVTmNncesHMEoj6e7bhPVH3GRya6jcyoZbMsQLVCi0iCm04ArmTkB20A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4Yp9mr6CDxz14ZM; Wed, 05 Feb 2025 19:49:48 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 515Jnmnw070283; Wed, 5 Feb 2025 19:49:48 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 515Jnma3070280; Wed, 5 Feb 2025 19:49:48 GMT (envelope-from git) Date: Wed, 5 Feb 2025 19:49:48 GMT Message-Id: <202502051949.515Jnma3070280@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: John Baldwin Subject: git: 3f93f96c26e5 - main - device_delete_child.9: Reference device_detach.9 and BUS_CHILD_DELETED.9 List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 3f93f96c26e51a42822c61e73252f4aeb6bb303a Auto-Submitted: auto-generated The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=3f93f96c26e51a42822c61e73252f4aeb6bb303a commit 3f93f96c26e51a42822c61e73252f4aeb6bb303a Author: John Baldwin AuthorDate: 2025-02-05 19:45:54 +0000 Commit: John Baldwin CommitDate: 2025-02-05 19:46:23 +0000 device_delete_child.9: Reference device_detach.9 and BUS_CHILD_DELETED.9 Refer to device_detach(9) for the description of detaching a device. Note that descendants of the child device are also deleted (though in theory a proper detach routine should have already deleted these). Finally, note that BUS_CHILD_DELETED(9) is invoked on each deleted device. Differential Revision: https://reviews.freebsd.org/D48365 --- share/man/man9/device_delete_child.9 | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/share/man/man9/device_delete_child.9 b/share/man/man9/device_delete_child.9 index f6c08cb52e16..819c7f5e36b9 100644 --- a/share/man/man9/device_delete_child.9 +++ b/share/man/man9/device_delete_child.9 @@ -26,7 +26,7 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd June 16, 1998 +.Dd February 5, 2025 .Dt DEVICE_DELETE_CHILD 9 .Os .Sh NAME @@ -41,13 +41,26 @@ The specified device is removed from .Fa dev and deleted. -If the device is currently attached, it is first detached (see -.Xr DEVICE_ATTACH 9 -and -.Xr DEVICE_DETACH 9 ) . +If the device is currently attached, it is first detached via +.Xr device_detach 9 . +If +.Fn device_detach +fails, +its error value is returned. +Otherwise, +all descendant devices of +.Fa child +are deleted and zero is returned. +.Pp +The +.Xr BUS_CHILD_DELETED 9 +method is invoked for each device that is deleted. +This permits the parent device's driver to tear down any state associated +with child devices such as ivars. .Sh RETURN VALUES Zero is returned on success, otherwise an error is returned. .Sh SEE ALSO +.Xr BUS_CHILD_DELETED 9 , .Xr device_add_child 9 .Sh AUTHORS This manual page was written by