{"id":24543,"url":"https://patchwork.libcamera.org/api/1.1/patches/24543/?format=json","web_url":"https://patchwork.libcamera.org/patch/24543/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","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include: linux: v4l2-isp: Provide __counted_by()","commit_ref":null,"pull_url":null,"state":"superseded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/1.1/people/143/?format=json","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/1.1/series/5472/?format=json","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":"","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 ;\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 ;\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 ","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 ","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":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"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 \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 \n #include \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"]}