Received: by 2002:a25:6193:0:0:0:0:0 with SMTP id v141csp3363058ybb; Mon, 6 Apr 2020 07:32:52 -0700 (PDT) X-Google-Smtp-Source: APiQypJiwbIbZhsuZS2mYXgefx4qRgJdgKJ8rufIXH+YgPInZ5+Whm4un98cwLEkjd7okMrqsJjR X-Received: by 2002:a05:6830:11d7:: with SMTP id v23mr18206549otq.216.1586183572037; Mon, 06 Apr 2020 07:32:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1586183572; cv=none; d=google.com; s=arc-20160816; b=pf0e4k7z15bBoeAm0S5ykMyj+bJWS3a/55SoFMWZEtF8UMQTCmZo1Z7m/mKVbTKQ1+ ZQVnKBOph0Mk3Fm5z1B7/yWSwvrZwk1Z7OhT4kRtqbpcFKFVlgfVpVP7UNKY+ORdMC2k m3LUFVrEIszpd2EVoEA2vWfxQhbJ2zrGsqfG7+OdFM8pEGz8IZQFqktl3IegiPH78aXT GtOp4DsAth+fK25+XcgF+JYVghA2H/pvuLYV7Q2YO2Ae/q7OAoCRbrJ2XV5v14+DDOYZ qBMYSQGsXLDNidCqc4cM/cym+t+NtuPhM1MnX1QFt9yD4hBBUyE7MfoEzBOVDgyIFN+w rW8Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:content-id:mime-version :subject:cc:to:references:in-reply-to:from:organization :dkim-signature; bh=Bs9O8CfSCjvxWFFcdHv5mM9YqkNdF8ds5U/VAdCzyFw=; b=aHoV0tjijpEQcAXTekbX6kdY9EhhkHozZ1R6Ab0Me0kWygyuPqPxReSgrYk+qLjmMn P8Pk0jhi6DAnhZ+2rqNFUPFhnmoR3T4QNf/B68Ac2kFsqJxflHR9OXysVJf5oBnIFDLU HSylNB8KEKE9m7TUsroGbCHRXC3wTFpq5uSFwY+7cfdwaEDMztjJbpAPfjBl+GD/Df+k 4izbbRj87aXWumL7OOZ164odJgGf2JpnglEsTFtQ7uSzPSsmpyPTNVKuHTwftXOkGfGy VaCTFkw65UUh8RkktpboFN1oTblquwKLBSbEsbRoLugBYxzmAGkzWUzl5848/pTnS16k ADEg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=C3nhFrZO; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f207si7605358oib.65.2020.04.06.07.32.38; Mon, 06 Apr 2020 07:32:52 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=C3nhFrZO; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728678AbgDFOcW (ORCPT + 99 others); Mon, 6 Apr 2020 10:32:22 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:48057 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728406AbgDFOcW (ORCPT ); Mon, 6 Apr 2020 10:32:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586183541; 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: in-reply-to:in-reply-to:references:references; bh=Bs9O8CfSCjvxWFFcdHv5mM9YqkNdF8ds5U/VAdCzyFw=; b=C3nhFrZOZDa4yNKgTo8LXE1EPTnJxAQqx2AHxT/+Ia/DamhcHy7DBqQ3KC2ujmyUOD7ZRL vW9jg7avE65GUsRGVQSuqMfTzYsHl2Of5MuqY3aDhPn9t7tHH7yxVLhoUjhPMJGlxtXjDJ hGgZr4do0HvRa7DlFeVxjlEvvPbhK8k= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-490-7Z6zlaeENrSBANbE3-7d-Q-1; Mon, 06 Apr 2020 10:32:17 -0400 X-MC-Unique: 7Z6zlaeENrSBANbE3-7d-Q-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AB74413F7; Mon, 6 Apr 2020 14:32:15 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-112-224.rdu2.redhat.com [10.10.112.224]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8DFD39D368; Mon, 6 Apr 2020 14:32:10 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20200406023700.1367-1-longman@redhat.com> References: <20200406023700.1367-1-longman@redhat.com> To: Waiman Long Cc: dhowells@redhat.com, Andrew Morton , Jarkko Sakkinen , James Morris , "Serge E. Hallyn" , linux-mm@kvack.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: [PATCH] mm: Add kvfree_sensitive() for freeing sensitive data objects MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <102081.1586183529.1@warthog.procyon.org.uk> Date: Mon, 06 Apr 2020 15:32:09 +0100 Message-ID: <102082.1586183529@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Waiman Long wrote: > +static inline void kvfree_sensitive(const void *addr, size_t len) Linus suggested making it non-inline. David