From patchwork Tue Mar 1 10:55:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 547446 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7388C433F5 for ; Tue, 1 Mar 2022 10:56:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232550AbiCAK4w (ORCPT ); Tue, 1 Mar 2022 05:56:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230382AbiCAK4v (ORCPT ); Tue, 1 Mar 2022 05:56:51 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B4B9C8BF0C for ; Tue, 1 Mar 2022 02:56:10 -0800 (PST) Received: from deskari.lan (91-156-85-209.elisa-laajakaista.fi [91.156.85.209]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id ABC4151C; Tue, 1 Mar 2022 11:56:08 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1646132169; bh=dlQSrXOXoK3tcS3Pb5R6xw0cq5MIya9oEXWANnos0zQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cwXae7+iXlxGaBYDZtUz6KCKrv1RnI2Ly/DLHTRLmJQYh6/ok+QhFbRnQ/v4YokId +s4byD8couUbIf/5Bn5zrCIm/yHUUpQO1MbbVsSZriidT8RiNpybnA/xTxKxWQhYeH e6iA4wcB0UdQRi7NSe+WDokVP30WbdfakxZu0mDw= From: Tomi Valkeinen To: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, Jacopo Mondi , Laurent Pinchart , niklas.soderlund+renesas@ragnatech.se, Mauro Carvalho Chehab , Hans Verkuil , Pratyush Yadav Cc: Tomi Valkeinen , Jacopo Mondi Subject: [PATCH v5 1/6] media: subdev: rename subdev-state alloc & free Date: Tue, 1 Mar 2022 12:55:43 +0200 Message-Id: <20220301105548.305191-2-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220301105548.305191-1-tomi.valkeinen@ideasonboard.com> References: <20220301105548.305191-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org v4l2_subdev_alloc_state() and v4l2_subdev_free_state() are not supposed to be used by the drivers. However, we do have a few drivers that use those at the moment, so we need to expose these functions for the time being. Prefix the functions with __ to mark the functions as internal. At the same time, rename them to v4l2_subdev_state_alloc and v4l2_subdev_state_free to match the style used for other functions like video_device_alloc() and media_request_alloc(). Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Reviewed-by: Hans Verkuil Reviewed-by: Jacopo Mondi --- drivers/media/platform/rcar-vin/rcar-v4l2.c | 8 ++++++-- drivers/media/platform/vsp1/vsp1_entity.c | 8 ++++++-- drivers/media/v4l2-core/v4l2-subdev.c | 12 ++++++------ drivers/staging/media/tegra-video/vi.c | 8 ++++++-- include/media/v4l2-subdev.h | 14 +++++++++----- 5 files changed, 33 insertions(+), 17 deletions(-) diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c index 2e60b9fce03b..da88f968c31a 100644 --- a/drivers/media/platform/rcar-vin/rcar-v4l2.c +++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c @@ -263,7 +263,11 @@ static int rvin_try_format(struct rvin_dev *vin, u32 which, u32 width, height; int ret; - sd_state = v4l2_subdev_alloc_state(sd); + /* + * FIXME: Drop this call, drivers are not supposed to use + * __v4l2_subdev_state_alloc(). + */ + sd_state = __v4l2_subdev_state_alloc(sd); if (IS_ERR(sd_state)) return PTR_ERR(sd_state); @@ -299,7 +303,7 @@ static int rvin_try_format(struct rvin_dev *vin, u32 which, rvin_format_align(vin, pix); done: - v4l2_subdev_free_state(sd_state); + __v4l2_subdev_state_free(sd_state); return ret; } diff --git a/drivers/media/platform/vsp1/vsp1_entity.c b/drivers/media/platform/vsp1/vsp1_entity.c index 823c15facd1b..c82b3fb7b89a 100644 --- a/drivers/media/platform/vsp1/vsp1_entity.c +++ b/drivers/media/platform/vsp1/vsp1_entity.c @@ -675,7 +675,11 @@ int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity, * Allocate the pad configuration to store formats and selection * rectangles. */ - entity->config = v4l2_subdev_alloc_state(&entity->subdev); + /* + * FIXME: Drop this call, drivers are not supposed to use + * __v4l2_subdev_state_alloc(). + */ + entity->config = __v4l2_subdev_state_alloc(&entity->subdev); if (IS_ERR(entity->config)) { media_entity_cleanup(&entity->subdev.entity); return PTR_ERR(entity->config); @@ -690,6 +694,6 @@ void vsp1_entity_destroy(struct vsp1_entity *entity) entity->ops->destroy(entity); if (entity->subdev.ctrl_handler) v4l2_ctrl_handler_free(entity->subdev.ctrl_handler); - v4l2_subdev_free_state(entity->config); + __v4l2_subdev_state_free(entity->config); media_entity_cleanup(&entity->subdev.entity); } diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 30eb50407db5..376595954db0 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -28,7 +28,7 @@ static int subdev_fh_init(struct v4l2_subdev_fh *fh, struct v4l2_subdev *sd) { struct v4l2_subdev_state *state; - state = v4l2_subdev_alloc_state(sd); + state = __v4l2_subdev_state_alloc(sd); if (IS_ERR(state)) return PTR_ERR(state); @@ -39,7 +39,7 @@ static int subdev_fh_init(struct v4l2_subdev_fh *fh, struct v4l2_subdev *sd) static void subdev_fh_free(struct v4l2_subdev_fh *fh) { - v4l2_subdev_free_state(fh->state); + __v4l2_subdev_state_free(fh->state); fh->state = NULL; } @@ -862,7 +862,7 @@ int v4l2_subdev_link_validate(struct media_link *link) } EXPORT_SYMBOL_GPL(v4l2_subdev_link_validate); -struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd) +struct v4l2_subdev_state *__v4l2_subdev_state_alloc(struct v4l2_subdev *sd) { struct v4l2_subdev_state *state; int ret; @@ -895,9 +895,9 @@ struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd) return ERR_PTR(ret); } -EXPORT_SYMBOL_GPL(v4l2_subdev_alloc_state); +EXPORT_SYMBOL_GPL(__v4l2_subdev_state_alloc); -void v4l2_subdev_free_state(struct v4l2_subdev_state *state) +void __v4l2_subdev_state_free(struct v4l2_subdev_state *state) { if (!state) return; @@ -905,7 +905,7 @@ void v4l2_subdev_free_state(struct v4l2_subdev_state *state) kvfree(state->pads); kfree(state); } -EXPORT_SYMBOL_GPL(v4l2_subdev_free_state); +EXPORT_SYMBOL_GPL(__v4l2_subdev_state_free); #endif /* CONFIG_MEDIA_CONTROLLER */ diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index d1f43f465c22..07d368f345cd 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -507,7 +507,11 @@ static int __tegra_channel_try_format(struct tegra_vi_channel *chan, if (!subdev) return -ENODEV; - sd_state = v4l2_subdev_alloc_state(subdev); + /* + * FIXME: Drop this call, drivers are not supposed to use + * __v4l2_subdev_state_alloc(). + */ + sd_state = __v4l2_subdev_state_alloc(subdev); if (IS_ERR(sd_state)) return PTR_ERR(sd_state); /* @@ -558,7 +562,7 @@ static int __tegra_channel_try_format(struct tegra_vi_channel *chan, v4l2_fill_pix_format(pix, &fmt.format); tegra_channel_fmt_align(chan, pix, fmtinfo->bpp); - v4l2_subdev_free_state(sd_state); + __v4l2_subdev_state_free(sd_state); return 0; } diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 6c153b33bb04..5d6f56648ad6 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -1122,20 +1122,24 @@ int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd, int v4l2_subdev_link_validate(struct media_link *link); /** - * v4l2_subdev_alloc_state - allocate v4l2_subdev_state + * __v4l2_subdev_state_alloc - allocate v4l2_subdev_state * * @sd: pointer to &struct v4l2_subdev for which the state is being allocated. * - * Must call v4l2_subdev_free_state() when state is no longer needed. + * Must call __v4l2_subdev_state_free() when state is no longer needed. + * + * Not to be called directly by the drivers. */ -struct v4l2_subdev_state *v4l2_subdev_alloc_state(struct v4l2_subdev *sd); +struct v4l2_subdev_state *__v4l2_subdev_state_alloc(struct v4l2_subdev *sd); /** - * v4l2_subdev_free_state - free a v4l2_subdev_state + * __v4l2_subdev_state_free - free a v4l2_subdev_state * * @state: v4l2_subdev_state to be freed. + * + * Not to be called directly by the drivers. */ -void v4l2_subdev_free_state(struct v4l2_subdev_state *state); +void __v4l2_subdev_state_free(struct v4l2_subdev_state *state); #endif /* CONFIG_MEDIA_CONTROLLER */