Message ID | 20230330115853.1628216-2-sakari.ailus@linux.intel.com (mailing list archive) |
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State | Accepted |
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Received: from vger.kernel.org ([23.128.96.18]) by www.linuxtv.org with esmtp (Exim 4.92) (envelope-from <linux-media-owner@vger.kernel.org>) id 1phqvr-009eE5-1x; Thu, 30 Mar 2023 11:59:07 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230469AbjC3L7F (ORCPT <rfc822;mkrufky@linuxtv.org> + 1 other); Thu, 30 Mar 2023 07:59:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229988AbjC3L7E (ORCPT <rfc822;linux-media@vger.kernel.org>); Thu, 30 Mar 2023 07:59:04 -0400 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7E15FA266 for <linux-media@vger.kernel.org>; Thu, 30 Mar 2023 04:59:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680177542; x=1711713542; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=TqDYsHc3wlHHE0sgOZGXezrElh8xe0mdWzlhC03wszM=; b=jo72p2lnwC4j90/7vKSWomKtFXigtdY+2p3OfYWwslyoW7xkcmpmzKma 0UWESLBIP+6Vhc+z0F2IPdXtdzjCuliohZo70iU32mxLQ7IDBRHtPCGcU QNgTwErWdwDHTT88sY5nNUDQXG2qTwBmoYkAlj1g9koXtq1Ak9FRHohin uk65jRB21wp0x7oL4Q4RaRDsMOhXdBrF+Vf9C/TxI6i1c/nuGmHIUqeHH BvKHswQ5kxsSoX1BH4ZrokSpccLmD2L2ABh4pHhUom2lrb3G7ZgWkT0nD lwPVvBeiyKpByfc9GgUtgKPyEBTe+iaFJwyGKNICwz+qhfF1hk4XLwk73 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10664"; a="406111335" X-IronPort-AV: E=Sophos;i="5.98,303,1673942400"; d="scan'208";a="406111335" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Mar 2023 04:59:01 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10664"; a="714952900" X-IronPort-AV: E=Sophos;i="5.98,303,1673942400"; d="scan'208";a="714952900" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Mar 2023 04:58:58 -0700 Received: from svinhufvud.ger.corp.intel.com (localhost [IPv6:::1]) by kekkonen.fi.intel.com (Postfix) with ESMTP id 3D6201224B6; Thu, 30 Mar 2023 14:58:55 +0300 (EEST) From: Sakari Ailus <sakari.ailus@linux.intel.com> To: linux-media@vger.kernel.org Cc: Philipp Zabel <p.zabel@pengutronix.de>, Laurent Pinchart <laurent.pinchart@ideasonboard.com>, hverkuil@xs4all.nl, Francesco Dolcini <francesco@dolcini.it>, aishwarya.kothari@toradex.com, Robert Foss <rfoss@kernel.org>, Todor Tomov <todor.too@gmail.com>, Hyun Kwon <hyun.kwon@xilinx.com> Subject: [PATCH 01/18] media: v4l: async: Return async sub-devices to subnotifier list Date: Thu, 30 Mar 2023 14:58:36 +0300 Message-Id: <20230330115853.1628216-2-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230330115853.1628216-1-sakari.ailus@linux.intel.com> References: <20230330115853.1628216-1-sakari.ailus@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.4 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H2, SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-media.vger.kernel.org> X-Mailing-List: linux-media@vger.kernel.org X-LSpam-Score: -2.4 (--) X-LSpam-Report: No, score=-2.4 required=5.0 tests=BAYES_00=-1.9,DKIMWL_WL_HIGH=0.001,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1 autolearn=ham autolearn_force=no |
Series |
Separate links and async sub-devices
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Commit Message
Sakari Ailus
March 30, 2023, 11:58 a.m. UTC
When an async notifier is unregistered, the async sub-devices in the
notifier's done list will disappear with the notifier. However this is
currently also done to the sub-notifiers that remain registered. Their
sub-devices only need to be unbound while the async sub-devices themselves
need to be returned to the sub-notifier's waiting list. Do this now.
Fixes: 2cab00bb076b ("media: v4l: async: Allow binding notifiers to sub-devices")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
drivers/media/v4l2-core/v4l2-async.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
Comments
Hi Sakari, On Thu, Mar 30, 2023 at 02:58:36PM +0300, Sakari Ailus wrote: > When an async notifier is unregistered, the async sub-devices in the > notifier's done list will disappear with the notifier. However this is > currently also done to the sub-notifiers that remain registered. Their > sub-devices only need to be unbound while the async sub-devices themselves > need to be returned to the sub-notifier's waiting list. Do this now. > > Fixes: 2cab00bb076b ("media: v4l: async: Allow binding notifiers to sub-devices") > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Thanks for clarifying my question on the RFC version Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Thanks j > --- > drivers/media/v4l2-core/v4l2-async.c | 13 ++++++++----- > 1 file changed, 8 insertions(+), 5 deletions(-) > > diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c > index 2f1b718a9189..008a2a3e312e 100644 > --- a/drivers/media/v4l2-core/v4l2-async.c > +++ b/drivers/media/v4l2-core/v4l2-async.c > @@ -414,7 +414,8 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd) > > /* Unbind all sub-devices in the notifier tree. */ > static void > -v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) > +v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier, > + bool readd) > { > struct v4l2_subdev *sd, *tmp; > > @@ -423,9 +424,11 @@ v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) > v4l2_async_find_subdev_notifier(sd); > > if (subdev_notifier) > - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); > + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, true); > > v4l2_async_nf_call_unbind(notifier, sd, sd->asd); > + if (readd) > + list_add_tail(&sd->asd->list, ¬ifier->waiting); > v4l2_async_cleanup(sd); > > list_move(&sd->async_list, &subdev_list); > @@ -557,7 +560,7 @@ static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier) > /* > * On failure, unbind all sub-devices registered through this notifier. > */ > - v4l2_async_nf_unbind_all_subdevs(notifier); > + v4l2_async_nf_unbind_all_subdevs(notifier, false); > > err_unlock: > mutex_unlock(&list_lock); > @@ -607,7 +610,7 @@ __v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier) > if (!notifier || (!notifier->v4l2_dev && !notifier->sd)) > return; > > - v4l2_async_nf_unbind_all_subdevs(notifier); > + v4l2_async_nf_unbind_all_subdevs(notifier, false); > > notifier->sd = NULL; > notifier->v4l2_dev = NULL; > @@ -805,7 +808,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd) > */ > subdev_notifier = v4l2_async_find_subdev_notifier(sd); > if (subdev_notifier) > - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); > + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, false); > > if (sd->asd) > v4l2_async_nf_call_unbind(notifier, sd, sd->asd); > -- > 2.30.2 >
Hi Sakari, Thank you for the patch. On Thu, Mar 30, 2023 at 02:58:36PM +0300, Sakari Ailus wrote: > When an async notifier is unregistered, the async sub-devices in the > notifier's done list will disappear with the notifier. However this is > currently also done to the sub-notifiers that remain registered. Their > sub-devices only need to be unbound while the async sub-devices themselves > need to be returned to the sub-notifier's waiting list. Do this now. > > Fixes: 2cab00bb076b ("media: v4l: async: Allow binding notifiers to sub-devices") > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > --- > drivers/media/v4l2-core/v4l2-async.c | 13 ++++++++----- > 1 file changed, 8 insertions(+), 5 deletions(-) > > diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c > index 2f1b718a9189..008a2a3e312e 100644 > --- a/drivers/media/v4l2-core/v4l2-async.c > +++ b/drivers/media/v4l2-core/v4l2-async.c > @@ -414,7 +414,8 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd) > > /* Unbind all sub-devices in the notifier tree. */ > static void > -v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) > +v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier, > + bool readd) I've read this as "read d" and was wondering what it meant. Maybe "re_add" would be a better variable name ? Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> > { > struct v4l2_subdev *sd, *tmp; > > @@ -423,9 +424,11 @@ v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) > v4l2_async_find_subdev_notifier(sd); > > if (subdev_notifier) > - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); > + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, true); > > v4l2_async_nf_call_unbind(notifier, sd, sd->asd); > + if (readd) > + list_add_tail(&sd->asd->list, ¬ifier->waiting); > v4l2_async_cleanup(sd); > > list_move(&sd->async_list, &subdev_list); > @@ -557,7 +560,7 @@ static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier) > /* > * On failure, unbind all sub-devices registered through this notifier. > */ > - v4l2_async_nf_unbind_all_subdevs(notifier); > + v4l2_async_nf_unbind_all_subdevs(notifier, false); > > err_unlock: > mutex_unlock(&list_lock); > @@ -607,7 +610,7 @@ __v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier) > if (!notifier || (!notifier->v4l2_dev && !notifier->sd)) > return; > > - v4l2_async_nf_unbind_all_subdevs(notifier); > + v4l2_async_nf_unbind_all_subdevs(notifier, false); > > notifier->sd = NULL; > notifier->v4l2_dev = NULL; > @@ -805,7 +808,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd) > */ > subdev_notifier = v4l2_async_find_subdev_notifier(sd); > if (subdev_notifier) > - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); > + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, false); > > if (sd->asd) > v4l2_async_nf_call_unbind(notifier, sd, sd->asd);
Hi Laurent, On Tue, Apr 25, 2023 at 04:28:57AM +0300, Laurent Pinchart wrote: > Hi Sakari, > > Thank you for the patch. > > On Thu, Mar 30, 2023 at 02:58:36PM +0300, Sakari Ailus wrote: > > When an async notifier is unregistered, the async sub-devices in the > > notifier's done list will disappear with the notifier. However this is > > currently also done to the sub-notifiers that remain registered. Their > > sub-devices only need to be unbound while the async sub-devices themselves > > need to be returned to the sub-notifier's waiting list. Do this now. > > > > Fixes: 2cab00bb076b ("media: v4l: async: Allow binding notifiers to sub-devices") > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> > > --- > > drivers/media/v4l2-core/v4l2-async.c | 13 ++++++++----- > > 1 file changed, 8 insertions(+), 5 deletions(-) > > > > diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c > > index 2f1b718a9189..008a2a3e312e 100644 > > --- a/drivers/media/v4l2-core/v4l2-async.c > > +++ b/drivers/media/v4l2-core/v4l2-async.c > > @@ -414,7 +414,8 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd) > > > > /* Unbind all sub-devices in the notifier tree. */ > > static void > > -v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) > > +v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier, > > + bool readd) > > I've read this as "read d" and was wondering what it meant. Maybe > "re_add" would be a better variable name ? > > Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Thank you. The patch has been already merged and the argument will soon disappear with the async rework patchset.
diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c index 2f1b718a9189..008a2a3e312e 100644 --- a/drivers/media/v4l2-core/v4l2-async.c +++ b/drivers/media/v4l2-core/v4l2-async.c @@ -414,7 +414,8 @@ static void v4l2_async_cleanup(struct v4l2_subdev *sd) /* Unbind all sub-devices in the notifier tree. */ static void -v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) +v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier, + bool readd) { struct v4l2_subdev *sd, *tmp; @@ -423,9 +424,11 @@ v4l2_async_nf_unbind_all_subdevs(struct v4l2_async_notifier *notifier) v4l2_async_find_subdev_notifier(sd); if (subdev_notifier) - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, true); v4l2_async_nf_call_unbind(notifier, sd, sd->asd); + if (readd) + list_add_tail(&sd->asd->list, ¬ifier->waiting); v4l2_async_cleanup(sd); list_move(&sd->async_list, &subdev_list); @@ -557,7 +560,7 @@ static int __v4l2_async_nf_register(struct v4l2_async_notifier *notifier) /* * On failure, unbind all sub-devices registered through this notifier. */ - v4l2_async_nf_unbind_all_subdevs(notifier); + v4l2_async_nf_unbind_all_subdevs(notifier, false); err_unlock: mutex_unlock(&list_lock); @@ -607,7 +610,7 @@ __v4l2_async_nf_unregister(struct v4l2_async_notifier *notifier) if (!notifier || (!notifier->v4l2_dev && !notifier->sd)) return; - v4l2_async_nf_unbind_all_subdevs(notifier); + v4l2_async_nf_unbind_all_subdevs(notifier, false); notifier->sd = NULL; notifier->v4l2_dev = NULL; @@ -805,7 +808,7 @@ int v4l2_async_register_subdev(struct v4l2_subdev *sd) */ subdev_notifier = v4l2_async_find_subdev_notifier(sd); if (subdev_notifier) - v4l2_async_nf_unbind_all_subdevs(subdev_notifier); + v4l2_async_nf_unbind_all_subdevs(subdev_notifier, false); if (sd->asd) v4l2_async_nf_call_unbind(notifier, sd, sd->asd);