From patchwork Mon Jan 15 10:30:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 98620 Return-path: Envelope-to: mchehab@infradead.org Delivery-date: Mon, 15 Jan 2024 10:30:53 +0000 Received: from bombadil.infradead.org [198.137.202.133] by coco.lan with IMAP (fetchmail-6.4.37) for (single-drop); Mon, 15 Jan 2024 11:31:35 +0100 (CET) Received: from sv.mirrors.kernel.org ([2604:1380:45e3:2400::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rPKF1-008aVK-2Q for mchehab@infradead.org; Mon, 15 Jan 2024 10:30:53 +0000 Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id 6277C28201A for ; Mon, 15 Jan 2024 10:30:51 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A7D7F22064; Mon, 15 Jan 2024 10:30:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="WBpnuZqZ" X-Original-To: linux-media@vger.kernel.org Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBAA21E86A for ; Mon, 15 Jan 2024 10:30:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Received: from pendragon.ideasonboard.com (89-27-53-110.bb.dnainternet.fi [89.27.53.110]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 33F21DB7; Mon, 15 Jan 2024 11:29:23 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1705314563; bh=VjpT/3lx1OfVRrwc2R8kMV6l02giyknCOQPkg7dtD00=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WBpnuZqZhAO7Y6bKffpF+Uyqqul30ho4bY02FD+jItgoSjZX5XZPgf3G4mtxoCHNP op/p/QTXMEvei53fYZyLfaEsI4iwGHyihVdAsWdDqLMdoQ1P8b1psvutIVKuwPhF3F C/+VkDJtlLpQN58AL0V4T75pJVs7dLQVQ25+VKWg= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Sakari Ailus , Jacopo Mondi , Alexander Shiyan , Fabio Estevam , Frieder Schrempf , Marek Vasut , Martin Kepplinger , Rui Miguel Silva , Tim Harvey , Purism Kernel Team Subject: [PATCH 4/7] media: mc: Add num_links flag to media_pad Date: Mon, 15 Jan 2024 12:30:26 +0200 Message-ID: <20240115103029.28055-5-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240115103029.28055-1-laurent.pinchart@ideasonboard.com> References: <20240115103029.28055-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240115_023051_789197_FEC7F23B X-CRM114-Status: GOOD ( 13.36 ) X-Spam-Score: -3.2 (---) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Maintain a counter of the links connected to a pad in the media_pad structure. This helps checking if a pad is connected to anything, which will be used in the pipeline building code. Signed-off-by: Laurent Pinchart --- drivers/media/mc/mc-entity.c | 6 ++++++ include/media/media-entity.h | 2 ++ 2 files changed, 8 insertions(+) Content analysis details: (-3.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [2604:1380:45e3:2400:0:0:0:1 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -1.0 MAILING_LIST_MULTI Multiple indicators imply a widely-seen list manager Maintain a counter of the links connected to a pad in the media_pad structure. This helps checking if a pad is connected to anything, which will be used in the pipeline building code. Signed-off-by: Laurent Pinchart --- drivers/media/mc/mc-entity.c | 6 ++++++ include/media/media-entity.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c index 7839e3f68efa..c2d8f59b62c1 100644 --- a/drivers/media/mc/mc-entity.c +++ b/drivers/media/mc/mc-entity.c @@ -1038,6 +1038,9 @@ static void __media_entity_remove_link(struct media_entity *entity, /* Remove the reverse links for a data link. */ if ((link->flags & MEDIA_LNK_FL_LINK_TYPE) == MEDIA_LNK_FL_DATA_LINK) { + link->source->num_links--; + link->sink->num_links--; + if (link->source->entity == entity) remote = link->sink->entity; else @@ -1143,6 +1146,9 @@ media_create_pad_link(struct media_entity *source, u16 source_pad, sink->num_links++; source->num_links++; + link->source->num_links++; + link->sink->num_links++; + return 0; } EXPORT_SYMBOL_GPL(media_create_pad_link); diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 2b6cd343ee9e..4d95893c8984 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -225,6 +225,7 @@ enum media_pad_signal_type { * @graph_obj: Embedded structure containing the media object common data * @entity: Entity this pad belongs to * @index: Pad index in the entity pads array, numbered from 0 to n + * @num_links: Number of links connected to this pad * @sig_type: Type of the signal inside a media pad * @flags: Pad flags, as defined in * :ref:`include/uapi/linux/media.h ` @@ -236,6 +237,7 @@ struct media_pad { struct media_gobj graph_obj; /* must be first field in struct */ struct media_entity *entity; u16 index; + u16 num_links; enum media_pad_signal_type sig_type; unsigned long flags;