Patch Detail
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GET /api/1.1/patches/27094/?format=api
{ "id": 27094, "url": "https://patchwork.libcamera.org/api/1.1/patches/27094/?format=api", "web_url": "https://patchwork.libcamera.org/patch/27094/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260629163017.863145-16-barnabas.pocze@ideasonboard.com>", "date": "2026-06-29T16:29:38", "name": "[RFC,v1,15/54] v4l2: v4l2_camera: Clear completed requests when stopping", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8de3cc9385a30994dacee93182db2d2c94bff6de", "submitter": { "id": 216, "url": "https://patchwork.libcamera.org/api/1.1/people/216/?format=api", "name": "Barnabás Pőcze", "email": "barnabas.pocze@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/27094/mbox/", "series": [ { "id": 6025, "url": "https://patchwork.libcamera.org/api/1.1/series/6025/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=6025", "date": "2026-06-29T16:29:23", "name": "libcamera: Split requests and buffers", "version": 1, "mbox": "https://patchwork.libcamera.org/series/6025/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/27094/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/27094/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id BC389C3261\n\tfor <parsemail@patchwork.libcamera.org>;\n\tMon, 29 Jun 2026 16:31:01 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id A964165F35;\n\tMon, 29 Jun 2026 18:30:47 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 6DB6965F3D\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 29 Jun 2026 18:30:24 +0200 (CEST)", "from pb-laptop.local (185.221.140.128.nat.pool.zt.hu\n\t[185.221.140.128])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 3AB5E1044\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tMon, 29 Jun 2026 18:29:41 +0200 (CEST)" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"mV3ZwC15\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1782750581;\n\tbh=Y/1MYfy85QlfUMD+IhTKG4vHPwL0j8jsvwzEosEwqpM=;\n\th=From:To:Subject:Date:In-Reply-To:References:From;\n\tb=mV3ZwC15Hh9ULDb+1kYLA2PCvyrZf/6L/bC2VFdHQs1RsaiWQ+wc6llbEjzg54yh7\n\tIcO8yLvzCPR1FtNDQTsqvgHxifqe+FJJs62auR1C2wzKnCjVIECAqb/R11D+pTB9AD\n\t5zXmFx9RhchMgGNVPkqas1gSDomig3aY5UwEbXqs=", "From": "=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= <barnabas.pocze@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Subject": "[RFC PATCH v1 15/54] v4l2: v4l2_camera: Clear completed requests\n\twhen stopping", "Date": "Mon, 29 Jun 2026 18:29:38 +0200", "Message-ID": "<20260629163017.863145-16-barnabas.pocze@ideasonboard.com>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260629163017.863145-1-barnabas.pocze@ideasonboard.com>", "References": "<20260629163017.863145-1-barnabas.pocze@ideasonboard.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "The queue `completedBuffers_` keeps track of the completed buffers\nfor servicing `VIDIOC_DQBUF` calls. It should be cleared when the\nstreaming is stopped otherwise after the next startup stale data\nmight be used.\n\nSigned-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>\n---\n src/v4l2/v4l2_camera.cpp | 1 +\n 1 file changed, 1 insertion(+)", "diff": "diff --git a/src/v4l2/v4l2_camera.cpp b/src/v4l2/v4l2_camera.cpp\nindex 8c7de8e92b..99109e93af 100644\n--- a/src/v4l2/v4l2_camera.cpp\n+++ b/src/v4l2/v4l2_camera.cpp\n@@ -242,6 +242,7 @@ int V4L2Camera::streamOff()\n \t{\n \t\tMutexLocker locker(bufferMutex_);\n \t\tisRunning_ = false;\n+\t\tcompletedBuffers_.clear();\n \t}\n \tbufferCV_.notify_all();\n \n", "prefixes": [ "RFC", "v1", "15/54" ] }