From patchwork Wed Jan 31 11:08:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mukesh Ojha X-Patchwork-Id: 13539240 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04BE37AE5B; Wed, 31 Jan 2024 11:09:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706699398; cv=none; b=nK0sJw31CfJPyDI4PP+mwb6DiRy/29a1Cce9MFVcJc2mNCjhNO1d4p8J/h2VvZ6tDSECNo4Z9uQPo3WfyDfbMPrpLU5wNPC6a9f4rvSsGHd8qyG5oGgfeoCZGoglJp7CXNc3zeIc+biTdHja3aXqZfDGhP+gTFv6uqEFavTsV8E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706699398; c=relaxed/simple; bh=WV/fdPNH0Zy8bOz53st7fySCJAhuCz2uTpzOhf8G3XU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LvGUblBUNGT1hOQouLwkECLvhkFM9k9DgT5pXFcin2lOdLkuKeCK+XnXtG7NFm6Z645cUSN8iG5b2xZ2ULqLBPW5aM4sl7zXr8uAHOnr67veT4B4fbG0YSbuME7LBqlcP0+ToZ4gt1MQ9bbgLY4FU8GsyYtVc518Pv375Eu5rBU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=G9934sjE; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="G9934sjE" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 40V8GajE030363; Wed, 31 Jan 2024 11:09:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= qcppdkim1; bh=n1PwXNbOSzmmcOnrrXNWhBBczgfzE4P1QBgC2EhbCIs=; b=G9 934sjEouHlMhJaylyPB8BHiDAzg+n+BR6oNuS4R4vMnSjbge3rizPvWmJz/NJW7O V/owU7ZgX9skb0E8KuZ3qtrdl9pBNGhs3vogb2vWpItXB20BAUbPaM8UaenXG3yx 30bM9UVVAO6bIpSX/8kMQbuIrzO9t5NVCGLKm9HwWFVyELWBV8ffGWRsOtzGHqCO Bfs0EorK7kpOlVeffH6fmdHWfpUDq8RK/Kzhc+yD+vI/9sFkfl3pXAWkPm5dbdA8 xXhxrynFQTa3hQ43Lyl8J7F9Ngsnb6MCX7wxbpRfMSx+VHkYc+OntjjiyAujBfoB gHggXhyCbF3A8T8aS0jw== Received: from nasanppmta02.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vygp7gsv0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 31 Jan 2024 11:09:36 +0000 (GMT) Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40VB9a3X028550 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 31 Jan 2024 11:09:36 GMT Received: from hu-mojha-hyd.qualcomm.com (10.80.80.8) by nasanex01c.na.qualcomm.com (10.45.79.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 31 Jan 2024 03:09:26 -0800 From: Mukesh Ojha To: , , , , , , , , , , , , , , , CC: , , , , , , , , , Subject: [PATCH v8 05/10] init: export linux_banner data variable Date: Wed, 31 Jan 2024 16:38:32 +0530 Message-ID: <20240131110837.14218-6-quic_mojha@quicinc.com> X-Mailer: git-send-email 2.43.0.254.ga26002b62827 In-Reply-To: <20240131110837.14218-1-quic_mojha@quicinc.com> References: <20240131110837.14218-1-quic_mojha@quicinc.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: WLJ5pHQMny6-dyzctECR7-WiKqaofJd6 X-Proofpoint-GUID: WLJ5pHQMny6-dyzctECR7-WiKqaofJd6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-31_06,2024-01-30_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 spamscore=0 mlxlogscore=999 lowpriorityscore=0 clxscore=1015 adultscore=0 mlxscore=0 suspectscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401190000 definitions=main-2401310085 Some debug loadable module like minidump is interested in knowing the kernel version against which it is being build. Let's export linux_banner. Signed-off-by: Mukesh Ojha --- include/linux/init.h | 3 +++ init/version-timestamp.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/include/linux/init.h b/include/linux/init.h index 58cef4c2e59a..d3d96188551c 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -145,6 +145,9 @@ extern char *saved_command_line; extern unsigned int saved_command_line_len; extern unsigned int reset_devices; +/* Defined in init/version-timestamp.c */ +extern const char linux_banner[]; + /* used by init/main.c */ void setup_arch(char **); void prepare_namespace(void); diff --git a/init/version-timestamp.c b/init/version-timestamp.c index 043cbf80a766..a48f2c19e5d7 100644 --- a/init/version-timestamp.c +++ b/init/version-timestamp.c @@ -6,6 +6,7 @@ #include #include #include +#include struct uts_namespace init_uts_ns = { .ns.count = REFCOUNT_INIT(2), @@ -28,3 +29,4 @@ struct uts_namespace init_uts_ns = { const char linux_banner[] = "Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n"; +EXPORT_SYMBOL_GPL(linux_banner);