From patchwork Sat May 13 12:31:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 681686 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 16E04C7EE24 for ; Sat, 13 May 2023 12:34:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238862AbjEMMea (ORCPT ); Sat, 13 May 2023 08:34:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41444 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238375AbjEMMe0 (ORCPT ); Sat, 13 May 2023 08:34:26 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ED7C63AAC for ; Sat, 13 May 2023 05:32:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683981163; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4HkEplNlc2fK+7LvqaNXv7APsTheUIvNpX+DSOhAxqI=; b=QmxMUywxZ7Z+vOPXdwdtsTH6V7awELHWumsaBfU3iA3vY03ezR2DXPW8VqDVH0CteYBc0y foZEJ8ZBMaW995HNchHpAbjMoJjdTBAH+xw2lelF9g5fkgC/qBf0t//cKt47UrlkkQ4s4o Wb8W7efZ0fE4Adrgn7P6BRDf709RBY4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-588-UD96skoxMKeUyfKlIH-pEg-1; Sat, 13 May 2023 08:32:37 -0400 X-MC-Unique: UD96skoxMKeUyfKlIH-pEg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id DD9A6857E60; Sat, 13 May 2023 12:32:35 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.192.46]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5698040C2076; Sat, 13 May 2023 12:32:34 +0000 (UTC) From: Hans de Goede To: Mauro Carvalho Chehab , Sakari Ailus , Andy Shevchenko Cc: Hans de Goede , Kate Hsuan , Tsuchiya Yuto , Yury Luneff , Nable , andrey.i.trufanov@gmail.com, Fabio Aiuto , linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH 19/30] media: atomisp: Simplify atomisp_pipe_check() Date: Sat, 13 May 2023 14:31:48 +0200 Message-Id: <20230513123159.33234-20-hdegoede@redhat.com> In-Reply-To: <20230513123159.33234-1-hdegoede@redhat.com> References: <20230513123159.33234-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org All switch (pipe->asd->streaming) cases in atomisp_pipe_check() are either no-ops or never happen: 1. ATOMISP_DEVICE_STREAMING_DISABLED already is a no-op 2. The videobuf2 core guarantees that when we are streaming vb2_is_busy() returns true. So the ATOMISP_DEVICE_STREAMING_ENABLED case is already handled by the if above the switch (pipe->asd->streaming). 3. After recent changes pipe->asd->streaming is only ever set to ATOMISP_DEVICE_STREAMING_STOPPING in atomisp_assert_recovery_work() and that function holds isp->mutex and always transitions the streaming state to ATOMISP_DEVICE_STREAMING_DISABLED or ATOMISP_DEVICE_STREAMING_ENABLED before releasing the mutex. So atomisp_pipe_check() never sees ATOMISP_DEVICE_STREAMING_STOPPING. Remove the entire switch-case. Signed-off-by: Hans de Goede --- .../staging/media/atomisp/pci/atomisp_ioctl.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c index 087ec5120bce..08a3d98794df 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c +++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c @@ -528,22 +528,6 @@ int atomisp_pipe_check(struct atomisp_video_pipe *pipe, bool settings_change) return -EBUSY; } - switch (pipe->asd->streaming) { - case ATOMISP_DEVICE_STREAMING_DISABLED: - break; - case ATOMISP_DEVICE_STREAMING_ENABLED: - if (settings_change) { - dev_err(pipe->isp->dev, "Set fmt/input IOCTL while streaming\n"); - return -EBUSY; - } - break; - case ATOMISP_DEVICE_STREAMING_STOPPING: - dev_err(pipe->isp->dev, "IOCTL issued while stopping\n"); - return -EBUSY; - default: - return -EINVAL; - } - return 0; }