From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1769BC2B9F7 for ; Mon, 24 May 2021 10:44:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF34D610A5 for ; Mon, 24 May 2021 10:44:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232661AbhEXKqA (ORCPT ); Mon, 24 May 2021 06:46:00 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:60880 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232513AbhEXKp6 (ORCPT ); Mon, 24 May 2021 06:45:58 -0400 Received: from deskari.lan (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id B5C7C1C41; Mon, 24 May 2021 12:44:28 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1621853069; bh=n87Nih0tIs8hqxZvQ2MeqLaGV90NII/UlPiGkZb9ugY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=weSMD92W+5BuXSmvlWAHg2LkXtzxgglWUDAp2R6YGSzOYr+0D46ZEtSZXopeLlbMV o8WaOKvKt0UCPSWHQiw4gpd6D21uYTMi7geGOaLPKiRoiaw336GVdfWoeqj0FZL1wF nUbTAKxzv/WBOJLzA7mCRzK9BKNwnp0224Akt7vM= From: Tomi Valkeinen To: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se Cc: Mauro Carvalho Chehab , Hans Verkuil , Tomi Valkeinen , Pratyush Yadav , Lokesh Vutla Subject: [PATCH v7 05/27] media: entity: Add iterator helper for entity pads Date: Mon, 24 May 2021 13:43:46 +0300 Message-Id: <20210524104408.599645-6-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210524104408.599645-1-tomi.valkeinen@ideasonboard.com> References: <20210524104408.599645-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Jacopo Mondi Add an iterator helper to easily cycle through all pads in an entity and use it in media-entity and media-device code where appropriate. Signed-off-by: Jacopo Mondi Reviewed-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen --- drivers/media/mc/mc-device.c | 13 ++++++------- drivers/media/mc/mc-entity.c | 11 ++++++----- include/media/media-entity.h | 12 ++++++++++++ 3 files changed, 24 insertions(+), 12 deletions(-) diff --git a/drivers/media/mc/mc-device.c b/drivers/media/mc/mc-device.c index 9e56d2ad6b94..704ef1360eba 100644 --- a/drivers/media/mc/mc-device.c +++ b/drivers/media/mc/mc-device.c @@ -581,7 +581,7 @@ static void __media_device_unregister_entity(struct media_entity *entity) struct media_device *mdev = entity->graph_obj.mdev; struct media_link *link, *tmp; struct media_interface *intf; - unsigned int i; + struct media_pad *iter; ida_free(&mdev->entity_internal_idx, entity->internal_idx); @@ -597,8 +597,8 @@ static void __media_device_unregister_entity(struct media_entity *entity) __media_entity_remove_links(entity); /* Remove all pads that belong to this entity */ - for (i = 0; i < entity->num_pads; i++) - media_gobj_destroy(&entity->pads[i].graph_obj); + media_entity_for_each_pad(entity, iter) + media_gobj_destroy(&iter->graph_obj); /* Remove the entity */ media_gobj_destroy(&entity->graph_obj); @@ -617,7 +617,7 @@ int __must_check media_device_register_entity(struct media_device *mdev, struct media_entity *entity) { struct media_entity_notify *notify, *next; - unsigned int i; + struct media_pad *iter; int ret; if (entity->function == MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN || @@ -646,9 +646,8 @@ int __must_check media_device_register_entity(struct media_device *mdev, media_gobj_create(mdev, MEDIA_GRAPH_ENTITY, &entity->graph_obj); /* Initialize objects at the pads */ - for (i = 0; i < entity->num_pads; i++) - media_gobj_create(mdev, MEDIA_GRAPH_PAD, - &entity->pads[i].graph_obj); + media_entity_for_each_pad(entity, iter) + media_gobj_create(mdev, MEDIA_GRAPH_PAD, &iter->graph_obj); /* invoke entity_notify callbacks */ list_for_each_entry_safe(notify, next, &mdev->entity_notify, list) diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c index 32045671eaff..40ae9b6bac47 100644 --- a/drivers/media/mc/mc-entity.c +++ b/drivers/media/mc/mc-entity.c @@ -198,7 +198,8 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads, struct media_pad *pads) { struct media_device *mdev = entity->graph_obj.mdev; - unsigned int i; + struct media_pad *iter; + unsigned int i = 0; if (num_pads >= MEDIA_ENTITY_MAX_PADS) return -E2BIG; @@ -209,12 +210,12 @@ int media_entity_pads_init(struct media_entity *entity, u16 num_pads, if (mdev) mutex_lock(&mdev->graph_mutex); - for (i = 0; i < num_pads; i++) { - pads[i].entity = entity; - pads[i].index = i; + media_entity_for_each_pad(entity, iter) { + iter->entity = entity; + iter->index = i++; if (mdev) media_gobj_create(mdev, MEDIA_GRAPH_PAD, - &entity->pads[i].graph_obj); + &iter->graph_obj); } if (mdev) diff --git a/include/media/media-entity.h b/include/media/media-entity.h index 926fd201eae3..5f6eed24e63f 100644 --- a/include/media/media-entity.h +++ b/include/media/media-entity.h @@ -1107,3 +1107,15 @@ void media_remove_intf_links(struct media_interface *intf); (entity)->ops->operation((entity) , ##args) : -ENOIOCTLCMD) #endif + +/** + * media_entity_for_each_pad - Iterate on all pads in an entity + * @entity: The entity the pads belong to + * @iter: The iterator pad + * + * Iterate on all pads in a media entity. + */ +#define media_entity_for_each_pad(entity, iter) \ + for (iter = (entity)->pads; \ + iter < &(entity)->pads[(entity)->num_pads]; \ + ++iter) -- 2.25.1