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{ "id": 24543, "url": "https://patchwork.libcamera.org/api/patches/24543/?format=api", "web_url": "https://patchwork.libcamera.org/patch/24543/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/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": "<20251001-v4l2-params-v4-2-8f2b4779205e@ideasonboard.com>", "date": "2025-10-01T15:42:31", "name": "[v4,2/5] include: linux: v4l2-isp: Provide __counted_by()", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "3ba6c4bcf31c056ba09632027fa700b2610887cc", "submitter": { "id": 143, "url": "https://patchwork.libcamera.org/api/people/143/?format=api", "name": "Jacopo Mondi", "email": "jacopo.mondi@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/24543/mbox/", "series": [ { "id": 5472, "url": "https://patchwork.libcamera.org/api/series/5472/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5472", "date": "2025-10-01T15:42:29", "name": "ipa: libipa: Introduce V4L2Params", "version": 4, "mbox": "https://patchwork.libcamera.org/series/5472/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/24543/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/24543/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 9D9BFC328C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 1 Oct 2025 15:42:58 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 1F16C6B5FB;\n\tWed, 1 Oct 2025 17:42:54 +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 708BA6B5C4\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 1 Oct 2025 17:42:45 +0200 (CEST)", "from [192.168.1.102] (93-61-96-190.ip145.fastwebnet.it\n\t[93.61.96.190])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 1FD2EBCA;\n\tWed, 1 Oct 2025 17:41:16 +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=\"QtM7bZCs\"; dkim-atps=neutral", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1759333276;\n\tbh=+Fr7v0haJUdYkbqLX5PxEimUjLQcrLUSYtyDj2wqy7Y=;\n\th=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n\tb=QtM7bZCsSDDZMj+ieON/KwlIRlf4Y78ANn47ymXedS/MPrkPfsTv8wMMjKQaR3UNL\n\tRratUktkwGtPf40jliU85l/puZ9HSZ4zFDPgROeEdvtOXCKdhAJYB/b6dVNcd3DtcF\n\tlvlXNya1A0Ei/+t7UAUBENqDC+6LRTvO0TrOpsps=", "From": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "Date": "Wed, 01 Oct 2025 17:42:31 +0200", "Subject": "[PATCH v4 2/5] include: linux: v4l2-isp: Provide __counted_by()", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20251001-v4l2-params-v4-2-8f2b4779205e@ideasonboard.com>", "References": "<20251001-v4l2-params-v4-0-8f2b4779205e@ideasonboard.com>", "In-Reply-To": "<20251001-v4l2-params-v4-0-8f2b4779205e@ideasonboard.com>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Jacopo Mondi <jacopo.mondi@ideasonboard.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1458;\n\ti=jacopo.mondi@ideasonboard.com; h=from:subject:message-id;\n\tbh=+Fr7v0haJUdYkbqLX5PxEimUjLQcrLUSYtyDj2wqy7Y=;\n\tb=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBo3UvyVFmKNGtkAk+o9xhfTy22DYzCgHWi566Eb\n\tfkvq+5wSi+JAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCaN1L8gAKCRByNAaPFqFW\n\tPGl2D/9Iv4ysURyw/EX3Sm6p+bxNw6U1Her7EgfmpavtSdUatfx7f4TxZcHnMwp0zfKwG6AreFC\n\tvSzDwmCeaPXS4I085Q+ugPuwBv+KP+xPJgcca8heQuSL2RM3I55vMbVPkzf3hrVTqFljOuxjwhA\n\tXL0iiEdDIGMgAkU7r6HfUYUzSKDb9CpuR5M0SR30IDLWZHIw5OEacTw6EG84Ed5TH0uWTUvokbd\n\tgNUYztI3hiI0k78bFqewGGP+ggY2PRESv2ub6el7HVDfSIeHRE3pbke+rnSvK+iTRoyYl7I0/Az\n\tk/L7mPrFNNNgnQsG/ELwhtBnAgsNfWlHBAjKCXcuiDc/sQ3yaj19VszADmbQ64lKxVal7uVVU8A\n\tFPf2/FI1GvfHB4AHxFNMycy9YP9MSeDVhRDofWsKGVieLzFTnR0mMNoWrDbfgrPEHf2/L1TuReX\n\t4WDzFbL9RJgO3Qsd3RxxTOS1UE73GsQMkuzC1APxgMDe9PLjj2bQA1DLRi2JpdG21UwfJGH7UAo\n\tyDsc3qdhxY0bmIAa5Uoh0MBEb5LSleCkrFoRA4ilxd3N3ruWphGDEFPm2aGZ+wnX3j2hdxg2eSL\n\tglwFYGN0W20STamveoujzPEOXSXDnVYyvpLNEkJto4nB3z6NA1TIqxFmWa9sMP9h45tRHAlIyMq\n\tfTBgiZhu40OtOOw==", "X-Developer-Key": "i=jacopo.mondi@ideasonboard.com; a=openpgp;\n\tfpr=72392EDC88144A65C701EA9BA5826A2587AD026B", "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 v4l2-isp.h header exported from version\nhttps://lore.kernel.org/all/20250915-extensible-parameters-validation-v5-0-e6db94468af3@ideasonboard.com/\n\nincludes the __counted_by() macro, which is not availale in Linux\nuAPI headers older than version v6.5.\n\nProvide the macro here, to support older kernel versions.\n\nSigned-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>\n---\n include/linux/media/v4l2-isp.h | 18 ++++++++++++++++++\n 1 file changed, 18 insertions(+)", "diff": "diff --git a/include/linux/media/v4l2-isp.h b/include/linux/media/v4l2-isp.h\nindex fed89b5678585a3565d33cf873d0313dc089524f..ea23dfdeeab9e69959cd8fa3c4853e931f36198a 100644\n--- a/include/linux/media/v4l2-isp.h\n+++ b/include/linux/media/v4l2-isp.h\n@@ -12,6 +12,24 @@\n #include <linux/stddef.h>\n #include <linux/types.h>\n \n+/*\n+ * Provide __counted_by() if not available in linux/stddef.h\n+ *\n+ * The Linux macro __counted_by() has been introduced in kernel v6.5 and\n+ * is not available in older kernel version.\n+ *\n+ * See commit dd06e72e68bc (\"Compiler Attributes: Add __counted_by macro\")\n+ *\n+ * Provide it here if not available.\n+ */\n+#if not defined(__counted_by)\n+#if __has_attribute(__counted_by__)\n+# define __counted_by(member)\t\t__attribute__((__counted_by__(member)))\n+#else\n+# define __counted_by(member)\n+#endif\n+#endif\n+\n #define V4L2_PARAMS_FL_BLOCK_DISABLE\t(1U << 0)\n #define V4L2_PARAMS_FL_BLOCK_ENABLE\t(1U << 1)\n \n", "prefixes": [ "v4", "2/5" ] }