From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 537F6EFD209 for ; Wed, 25 Feb 2026 08:16:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=dmXeuzqCGEXbsFr6BMS6DZRu4kl8OFDlvdktSaTFzJk=; b=EDO/k7nGMIsoCdISFkcfZjqi95 pKjjgIARJjcZjVUtRwVpfl4gCUA5sL+pqPcW4767s5d/QfbPic7VYmnTiC//YvGWR6d0/A0ogeCJI 7oMXwALvyStUFvpio97815H6QtjOAp3W2SeRSEdFa7VS9cwFF57ckVs290kp1CmafykjqpPFCnVWs n9mMCvJTnzKmVdQAIg0WyBw+3W1NpErGXs3x9fCZonUky0VLAubw1StGHOGYqEZfD3Md0ElmiPqzG AOIDBQneS15nmefBG3DaW8L8e+EADiVTLbGuiJEkH9PQ7rOTFLNghznlsFg93L8Se0kLf+c0IRGV1 rAW5QIGg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvA4Q-00000003Vfd-3exU; Wed, 25 Feb 2026 08:16:34 +0000 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvA4J-00000003VWi-1WHz for linux-arm-kernel@lists.infradead.org; Wed, 25 Feb 2026 08:16:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772007386; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dmXeuzqCGEXbsFr6BMS6DZRu4kl8OFDlvdktSaTFzJk=; b=UQblmx7oRS9e3+OhisC6B8dvjTVGB4VnN0sS0MTDDUfrKxMNbSJWnEidxqyqaL5yBfeLhU HxX17kF/ASY/CKEzL4hr1Emg9U0+OrhrQxMwkHNAV8Khuv2JxkKqtNHXs4qsGdNh0fuFJd pDZMrgdgCDDXJYVJ5Bg7arb08pSCgvA= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-74-YXdFjCA1Mnetuo5LYiwicw-1; Wed, 25 Feb 2026 03:16:22 -0500 X-MC-Unique: YXdFjCA1Mnetuo5LYiwicw-1 X-Mimecast-MFC-AGG-ID: YXdFjCA1Mnetuo5LYiwicw_1772007380 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 7F2CF1800282; Wed, 25 Feb 2026 08:16:20 +0000 (UTC) Received: from MiWiFi-R3L-srv.redhat.com (unknown [10.72.112.55]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 37D111800465; Wed, 25 Feb 2026 08:16:09 +0000 (UTC) From: Baoquan He To: kasan-dev@googlegroups.com Cc: linux-mm@kvack.org, andreyknvl@gmail.com, ryabinin.a.a@gmail.com, glider@google.com, dvyukov@google.com, linux-kernel@vger.kernel.org, linux-um@lists.infradead.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, x86@kernel.org, chris@zankel.net, jcmvbkbc@gmail.com, linux-s390@vger.kernel.org, hca@linux.ibm.com, Baoquan He Subject: [PATCH v5 10/15] arch/riscv: don't initialize kasan if it's disabled Date: Wed, 25 Feb 2026 16:14:07 +0800 Message-ID: <20260225081412.76502-11-bhe@redhat.com> In-Reply-To: <20260225081412.76502-1-bhe@redhat.com> References: <20260225081412.76502-1-bhe@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 X-Mimecast-MFC-PROC-ID: Ry9BiXjIifG_wfG1qqTpJ3ANwKkNyBZ9d_MSxLrHouA_1772007380 X-Mimecast-Originator: redhat.com Content-type: text/plain Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260225_001629_541107_9DEABE01 X-CRM114-Status: UNSURE ( 9.47 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Here, kasan is disabled if specified 'kasan=off' in kernel cmdline. Signed-off-by: Baoquan He Cc: linux-riscv@lists.infradead.org --- arch/riscv/mm/kasan_init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c index c4a2a9e5586e..dc7cc0dcc7eb 100644 --- a/arch/riscv/mm/kasan_init.c +++ b/arch/riscv/mm/kasan_init.c @@ -485,6 +485,10 @@ void __init kasan_init(void) phys_addr_t p_start, p_end; u64 i; + /* If KASAN is disabled via command line, don't initialize it. */ + if (kasan_arg_disabled) + return; + create_tmp_mapping(); csr_write(CSR_SATP, PFN_DOWN(__pa(tmp_pg_dir)) | satp_mode); -- 2.52.0