From patchwork Mon Jun 29 15:09:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11631077 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3775C913 for ; Mon, 29 Jun 2020 15:15:50 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0265C23EB0 for ; Mon, 29 Jun 2020 15:15:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="vmsOj6TI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0265C23EB0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VwKnRq99It/mdtexSKRZuQVlpuJ2W5Z9S1XRTZihbjU=; b=vmsOj6TIvbjIArb7nErhc/6NT rPr+hFfbKSWzzZxIo/ZHAlB/eij4KQigfcqZM5Xk8xEMQqBDxh4UA8GBA9W7xz1uB8JdKCkmoNv0w +nuqOvj48BejMRGgQnWXApgNmLjxyePHsep4udlbBUeLiDg7/CVv+f1mbvgd3Z78hzEj6QngJKc3g ihCdtfvLrYnADXXRqwTYPt4mDor31h5foAqL4KIJsW47Lqk0dw+zpIy82fXoliIDiB0hfvCtFtlLj 0rjm9KoyWV+fpzPEPUJeUxicqaCiXUSu9NKUbS94VmzAyGgKMoDhxKn40Bk5Zz91NsJSFneFu1QYr 6pIPEtReA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jpvTW-00045B-BB; Mon, 29 Jun 2020 15:13:38 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jpvPz-0002dn-Bn; Mon, 29 Jun 2020 15:10:06 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 74E87AF69; Mon, 29 Jun 2020 15:09:57 +0000 (UTC) From: Nicolas Saenz Julienne To: gregkh@linuxfoundation.org Subject: [PATCH v2 11/47] staging: vchi: Get rid of struct vchi_instance_handle Date: Mon, 29 Jun 2020 17:09:09 +0200 Message-Id: <20200629150945.10720-12-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200629150945.10720-1-nsaenzjulienne@suse.de> References: <20200629150945.10720-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [195.135.220.15 listed in wl.mailspike.net] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, kernel-list@raspberrypi.com, linux-kernel@vger.kernel.org, Nicolas Saenz Julienne , laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The idea behind this was to create an opaque handle to struct vchiq_instance. This can be achieved without creating a new type by means of a forward declaration of struct vchiq_instance. This saves us from a lot of useless casting and overall simplifies code. Signed-off-by: Nicolas Saenz Julienne --- .../bcm2835-audio/bcm2835-vchiq.c | 20 ++++++------- .../vc04_services/bcm2835-audio/bcm2835.h | 2 +- .../vc04_services/interface/vchi/vchi.h | 12 ++++---- .../interface/vchiq_arm/vchiq_shim.c | 30 ++++++------------- .../vc04_services/vchiq-mmal/mmal-vchiq.c | 8 ++--- 5 files changed, 30 insertions(+), 42 deletions(-) diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c index 73144f1ce45e..8c9390153a26 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c @@ -122,7 +122,7 @@ static void audio_vchi_callback(void *param, } static int -vc_vchi_audio_init(struct vchi_instance_handle *vchi_instance, +vc_vchi_audio_init(struct vchiq_instance *vchiq_instance, struct bcm2835_audio_instance *instance) { struct service_creation params = { @@ -134,7 +134,7 @@ vc_vchi_audio_init(struct vchi_instance_handle *vchi_instance, int status; /* Open the VCHI service connections */ - status = vchi_service_open(vchi_instance, ¶ms, + status = vchi_service_open(vchiq_instance, ¶ms, &instance->vchi_handle); if (status) { @@ -173,20 +173,20 @@ int bcm2835_new_vchi_ctx(struct device *dev, struct bcm2835_vchi_ctx *vchi_ctx) int ret; /* Initialize and create a VCHI connection */ - ret = vchi_initialise(&vchi_ctx->vchi_instance); + ret = vchi_initialise(&vchi_ctx->instance); if (ret) { dev_err(dev, "failed to initialise VCHI instance (ret=%d)\n", ret); return -EIO; } - ret = vchi_connect(vchi_ctx->vchi_instance); + ret = vchi_connect(vchi_ctx->instance); if (ret) { dev_dbg(dev, "failed to connect VCHI instance (ret=%d)\n", ret); - kfree(vchi_ctx->vchi_instance); - vchi_ctx->vchi_instance = NULL; + kfree(vchi_ctx->instance); + vchi_ctx->instance = NULL; return -EIO; } @@ -196,10 +196,10 @@ int bcm2835_new_vchi_ctx(struct device *dev, struct bcm2835_vchi_ctx *vchi_ctx) void bcm2835_free_vchi_ctx(struct bcm2835_vchi_ctx *vchi_ctx) { - /* Close the VCHI connection - it will also free vchi_instance */ - WARN_ON(vchi_disconnect(vchi_ctx->vchi_instance)); + /* Close the VCHI connection - it will also free vchi_ctx->instance */ + WARN_ON(vchi_disconnect(vchi_ctx->instance)); - vchi_ctx->vchi_instance = NULL; + vchi_ctx->instance = NULL; } int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) @@ -217,7 +217,7 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) instance->alsa_stream = alsa_stream; alsa_stream->instance = instance; - err = vc_vchi_audio_init(vchi_ctx->vchi_instance, + err = vc_vchi_audio_init(vchi_ctx->instance, instance); if (err < 0) goto free_instance; diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h index d2fe8d36ab7d..2a94e825194f 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h @@ -44,7 +44,7 @@ enum snd_bcm2835_ctrl { }; struct bcm2835_vchi_ctx { - struct vchi_instance_handle *vchi_instance; + struct vchiq_instance *instance; }; /* definition of the chip-specific record */ diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h index 1daef5ad70f1..6b73d8fb394a 100644 --- a/drivers/staging/vc04_services/interface/vchi/vchi.h +++ b/drivers/staging/vc04_services/interface/vchi/vchi.h @@ -49,8 +49,8 @@ struct service_creation { void *callback_param; }; -// Opaque handle for a VCHI instance -struct vchi_instance_handle; +// Opaque handle for a VCHIQ instance +struct vchiq_instance; // Opaque handle for a server or client struct vchi_service_handle; @@ -61,19 +61,19 @@ struct vchi_service_handle; *****************************************************************************/ // Routine used to initialise the vchi on both local + remote connections -extern int32_t vchi_initialise(struct vchi_instance_handle **instance_handle); +extern int32_t vchi_initialise(struct vchiq_instance **instance); -extern int32_t vchi_connect(struct vchi_instance_handle *instance_handle); +extern int32_t vchi_connect(struct vchiq_instance *instance); //When this is called, ensure that all services have no data pending. //Bulk transfers can remain 'queued' -extern int32_t vchi_disconnect(struct vchi_instance_handle *instance_handle); +extern int32_t vchi_disconnect(struct vchiq_instance *instance); /****************************************************************************** * Global service API *****************************************************************************/ // Routine to open a named service -extern int32_t vchi_service_open(struct vchi_instance_handle *instance_handle, +extern int32_t vchi_service_open(struct vchiq_instance *instance, struct service_creation *setup, struct vchi_service_handle **handle); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c index 54c2492b7c83..8758704d61c9 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c @@ -287,7 +287,7 @@ EXPORT_SYMBOL(vchi_msg_hold); /*********************************************************** * Name: vchi_initialise * - * Arguments: struct vchi_instance_handle **instance_handle + * Arguments: struct vchiq_instance **instance * * Description: Initialises the hardware but does not transmit anything * When run as a Host App this will be called twice hence the need @@ -297,23 +297,16 @@ EXPORT_SYMBOL(vchi_msg_hold); * ***********************************************************/ -int32_t vchi_initialise(struct vchi_instance_handle **instance_handle) +int32_t vchi_initialise(struct vchiq_instance **instance) { - struct vchiq_instance *instance; - enum vchiq_status status; - - status = vchiq_initialise(&instance); - - *instance_handle = (struct vchi_instance_handle *)instance; - - return status; + return vchiq_initialise(instance); } EXPORT_SYMBOL(vchi_initialise); /*********************************************************** * Name: vchi_connect * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * * Description: Starts the command service on each connection, * causing INIT messages to be pinged back and forth @@ -321,10 +314,8 @@ EXPORT_SYMBOL(vchi_initialise); * Returns: 0 if successful, failure otherwise * ***********************************************************/ -int32_t vchi_connect(struct vchi_instance_handle *instance_handle) +int32_t vchi_connect(struct vchiq_instance *instance) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; - return vchiq_connect(instance); } EXPORT_SYMBOL(vchi_connect); @@ -332,7 +323,7 @@ EXPORT_SYMBOL(vchi_connect); /*********************************************************** * Name: vchi_disconnect * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * * Description: Stops the command service on each connection, * causing DE-INIT messages to be pinged back and forth @@ -340,10 +331,8 @@ EXPORT_SYMBOL(vchi_connect); * Returns: 0 if successful, failure otherwise * ***********************************************************/ -int32_t vchi_disconnect(struct vchi_instance_handle *instance_handle) +int32_t vchi_disconnect(struct vchiq_instance *instance) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; - return vchiq_shutdown(instance); } EXPORT_SYMBOL(vchi_disconnect); @@ -352,7 +341,7 @@ EXPORT_SYMBOL(vchi_disconnect); * Name: vchi_service_open * Name: vchi_service_create * - * Arguments: struct vchi_instance_handle *instance_handle + * Arguments: struct vchiq_instance *instance * struct service_creation *setup, * struct vchi_service_handle **handle * @@ -446,11 +435,10 @@ static void service_free(struct shim_service *service) } } -int32_t vchi_service_open(struct vchi_instance_handle *instance_handle, +int32_t vchi_service_open(struct vchiq_instance *instance, struct service_creation *setup, struct vchi_service_handle **handle) { - struct vchiq_instance *instance = (struct vchiq_instance *)instance_handle; struct shim_service *service = service_alloc(instance, setup); *handle = (struct vchi_service_handle *)service; diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c index 7fb502f90a89..30f97c4bb9fc 100644 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c @@ -1864,7 +1864,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) { int status; struct vchiq_mmal_instance *instance; - static struct vchi_instance_handle *vchi_instance; + static struct vchiq_instance *vchiq_instance; struct service_creation params = { .version = VCHI_VERSION_EX(VC_MMAL_VER, VC_MMAL_MIN_VER), .service_id = VC_MMAL_SERVER_NAME, @@ -1886,14 +1886,14 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) BUILD_BUG_ON(sizeof(struct mmal_port) != 64); /* create a vchi instance */ - status = vchi_initialise(&vchi_instance); + status = vchi_initialise(&vchiq_instance); if (status) { pr_err("Failed to initialise VCHI instance (status=%d)\n", status); return -EIO; } - status = vchi_connect(vchi_instance); + status = vchi_connect(vchiq_instance); if (status) { pr_err("Failed to connect VCHI instance (status=%d)\n", status); return -EIO; @@ -1918,7 +1918,7 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) if (!instance->bulk_wq) goto err_free; - status = vchi_service_open(vchi_instance, ¶ms, &instance->handle); + status = vchi_service_open(vchiq_instance, ¶ms, &instance->handle); if (status) { pr_err("Failed to open VCHI service connection (status=%d)\n", status);