From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 951293101D0 for ; Wed, 25 Feb 2026 08:16:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772007391; cv=none; b=TOI+B/0LMisxGsuB8wv2ZmGkgc6czB8EXb8vkYqsU+Kd0GKFYH8NSvNsSFT+N+ETPDkpxSyB/q5qWAUVhM1FZpothLlFlHMPi53BMThEIaTDVP43SPUIWonBgGIFAAdex84YvXbx+8LeSJmabO1m85+y+Hgy7oPRpd4holJwV2c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772007391; c=relaxed/simple; bh=qCqcGEgo8avXAvEU1P43kkLCEeJsu1bwMh+W+e/a0GA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-type; b=PbmNSnkHuZ0rSb2HNPOJWjC8DP/Zsow5dG6EHCCaX6Y0H7JRRsnzbwJS/z1P1jG/tTqoyhWJZh/Sa9RhMXnlmYkx6/lOYZDZJ8XJUwNjqhcfaj6BvUaRPg48rmO0ui7/xF/6hDvx1d+kO9RhSwxT/7XXHGKj3xSWtuEpinfeaaA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=PhfQq/54; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="PhfQq/54" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1772007389; 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=PhfQq/542TlWYSSMbJc6t04TVm+N3qbYO267XZBRcfXzhXlSGPeUFolUmsi52wCpk8cyea hvMlO2uKCZKGSWMtYcbIwLzGMWm677yLgTaZS2cp0OhllGXQN7XcFKXWJg3ZrgXED+68gI 5upVwR5qWEneRefpALW706fygEZRhEo= 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> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-type: text/plain Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 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