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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E6CB5C433E0 for ; Wed, 17 Jun 2020 21:31:37 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id BBA0B2168B for ; Wed, 17 Jun 2020 21:31:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="pnxrMA3f" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BBA0B2168B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=ispras.ru Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:Subject:From:References:To:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8Tpwt2l7mnkVUeEaeqDYDa0S6gwQlwWL0zCTDmBf7Bk=; b=pnxrMA3fSyMhkw n8VhTuDVvKLLacjAnWKUIZU2clziooeyhSNGcuUrGUoE0sAjps34Y+uPBMd5I1NkS5dAEl9sVakm5 M+jIMl3z5dHsMU4Dgx1Tcx46HkQsTqloQllbasCQttganOXT3C5H9IVpQASo92KU/spmB7dfoPOaG vRMcj6EZrpqr28M8I4zYG5OO+RNUjfWHSywjoWG9bYT9oIvbhkK0KjNnU9aeVUWSS1T6Kd9+PHuzH M4CKESdn+MvPumRcL+u2qJEHrQbUxE1dPNyeA5HjwSAUkxp+XTY8mmHDWEFmq1kIKm3lAYYovhD68 mM6h/34LoVWgxAyx/CHw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlfeV-00080D-Kb; Wed, 17 Jun 2020 21:31:23 +0000 Received: from mail.ispras.ru ([83.149.199.45]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlfeS-0007zW-6Y; Wed, 17 Jun 2020 21:31:22 +0000 Received: from [192.168.1.8] (unknown [213.87.137.195]) by mail.ispras.ru (Postfix) with ESMTPSA id 54355BFD1E; Thu, 18 Jun 2020 00:31:03 +0300 (MSK) To: Joe Perches , Waiman Long , Andrew Morton , David Howells , Jarkko Sakkinen , James Morris , "Serge E. Hallyn" , Linus Torvalds , Matthew Wilcox , David Rientjes References: <20200616015718.7812-1-longman@redhat.com> From: Denis Efremov Autocrypt: addr=efremov@ispras.ru; keydata= mQINBFsJUXwBEADDnzbOGE/X5ZdHqpK/kNmR7AY39b/rR+2Wm/VbQHV+jpGk8ZL07iOWnVe1 ZInSp3Ze+scB4ZK+y48z0YDvKUU3L85Nb31UASB2bgWIV+8tmW4kV8a2PosqIc4wp4/Qa2A/ Ip6q+bWurxOOjyJkfzt51p6Th4FTUsuoxINKRMjHrs/0y5oEc7Wt/1qk2ljmnSocg3fMxo8+ y6IxmXt5tYvt+FfBqx/1XwXuOSd0WOku+/jscYmBPwyrLdk/pMSnnld6a2Fp1zxWIKz+4VJm QEIlCTe5SO3h5sozpXeWS916VwwCuf8oov6706yC4MlmAqsQpBdoihQEA7zgh+pk10sCvviX FYM4gIcoMkKRex/NSqmeh3VmvQunEv6P+hNMKnIlZ2eJGQpz/ezwqNtV/przO95FSMOQxvQY 11TbyNxudW4FBx6K3fzKjw5dY2PrAUGfHbpI3wtVUNxSjcE6iaJHWUA+8R6FLnTXyEObRzTS fAjfiqcta+iLPdGGkYtmW1muy/v0juldH9uLfD9OfYODsWia2Ve79RB9cHSgRv4nZcGhQmP2 wFpLqskh+qlibhAAqT3RQLRsGabiTjzUkdzO1gaNlwufwqMXjZNkLYu1KpTNUegx3MNEi2p9 CmmDxWMBSMFofgrcy8PJ0jUnn9vWmtn3gz10FgTgqC7B3UvARQARAQABtCFEZW5pcyBFZnJl bW92IDxlZnJlbW92QGlzcHJhcy5ydT6JAlQEEwEIAD4CGwMFCwkIBwIGFQoJCAsCBBYCAwEC HgECF4AWIQR2VAM2ApQN8ZIP5AO1IpWwM1AwHwUCXsQtuwUJB31DPwAKCRC1IpWwM1AwHxhw EADCag2FEvD03XdcMIC4I0C7ksllN9kYAdjQ1MwlnO+EHpkzUBh8xPXGVfGIJ+AfQIQodLZa umUGyf/bKlkrJQ3E5a8SfykG+6P6CKmDBqPHBRBchsr6uI15pA3SjYxECx2rBEcm0eIssl44 5nm6dlpzFK2KGGD4VDSpogBEEc+UrIoipqqdJzvg6QJChE4cNLQGFB31lF7Or+CJ6HPirjbS AhSijvhG7AueTaU2xyONuYlrP0Ooup9cL1cLf/A/MHW6Ekn5M6KNzfioYP255Rpx8W8c25AI PMamb6bixL4a0ZhtHCC1XbTBCSQAmzcJuDvziMXY5ozVpGRRRvv++iubTkkgxlBqganJGuDy iKByTAqpUBvoZKi0riFiKXK5/FrETD4KAg5vU/qL+WXZuf3Bp54+Ugzv7nCkQ0dntSwldPRS vi5Yfku0pRh4bQajSNV2E8qjVht4OTai9d49k8yyuesoDkfT/rf/Uge3cc5SQwe2JL6GuiKG lyOF4o1c2s1Xaf1EzPAPYPCqU+E29+n1uXwG+65oEyUHTMIWT+BQhtEdc4GTIYcSV9UZyY3p NvwXVearNHvtrSA176ZbJJmInqmEYjP42y9KdrWo9XBMoWlqL3cl0owF7BWa+tr9Uy9GQ2vu IpuJ8253NjGwqJvUACpnRCfUUmZRXNlKLzB+KbkCDQRbCVF8ARAA3ITFo8OvvzQJT2cYnPR7 18Npm+UL6uckm0Jr0IAFdstRZ3ZLW/R9e24nfF3A8Qga3VxJdhdEOzZKBbl1nadZ9kKUnq87 te0eBJu+EbcuMv6+njT4CBdwCzJnBZ7ApFpvM8CxIUyFAvaz4EZZxkfEpxaPAivR1Sa22x7O MWH/78laB6KsPgwxV7fir45VjQEyJZ5ac5ydG9xndFmb76upD7HhV7fnygwf/uIPOzNZYVEl GVnqTBqisFRWg9w3Bqvqb/W6prJsoh7F0/THzCzp6PwbAnXDedN388RIuHtXJ+wTsPA0oL0H 4jQ+4XuAWvghD/+RXJI5wcsAHx7QkDcbTddrhhGdGcd06qbXe2hNVgdCtaoAgpCEetW8/a8H +lEBBD4/iD2La39sfE+dt100cKgUP9MukDvOF2fT6GimdQ8TeEd1+RjYyG9SEJpVIxj6H3Cy GjFwtIwodfediU/ygmYfKXJIDmVpVQi598apSoWYT/ltv+NXTALjyNIVvh5cLRz8YxoFsFI2 VpZ5PMrr1qo+DB1AbH00b0l2W7HGetSH8gcgpc7q3kCObmDSa3aTGTkawNHzbceEJrL6mRD6 GbjU4GPD06/dTRIhQatKgE4ekv5wnxBK6v9CVKViqpn7vIxiTI9/VtTKndzdnKE6C72+jTwS YVa1vMxJABtOSg8AEQEAAYkCPAQYAQgAJgIbDBYhBHZUAzYClA3xkg/kA7UilbAzUDAfBQJe xC4MBQkHfUOQAAoJELUilbAzUDAfPYoQAJdBGd9WZIid10FCoI30QXA82SHmxWe0Xy7hr4bb ZobDPc7GbTHeDIYmUF24jI15NZ/Xy9ADAL0TpEg3fNVad2eslhCwiQViWfKOGOLLMe7vzod9 dwxYdGXnNRlW+YOCdFNVPMvPDr08zgzXaZ2+QJjp44HSyzxgONmHAroFcqCFUlfAqUDOT30g V5bQ8BHqvfWyEhJT+CS3JJyP8BmmSgPa0Adlp6Do+pRsOO1YNNO78SYABhMi3fEa7X37WxL3 1TrNCPnIauTgZtf/KCFQJpKaakC3ffEkPhyTjEl7oOE9xccNjccZraadi+2uHV0ULA1mycHh b817A03n1I00QwLf2wOkckdqTqRbFFI/ik69hF9hemK/BmAHpShI+z1JsYT9cSs8D7wbaF/j QVy4URensgAPkgXsRiboqOj/rTz9F5mpd/gPU/IOUPFEMoo4TInt/+dEVECHioU3RRrWEahr GMfRngbdp/mKs9aBR56ECMfFFUPyI3VJsNbgpcIJjV/0N+JdJKQpJ/4uQ2zNm0wH/RU8CRJv EwtKemX6fp/zLI36Gvz8zJIjSBIEqCb7vdgvWarksrhmi6/Jay5zRZ03+k6YwiqgX8t7ANwv Ya1h1dQ36OiTqm1cIxRCGl4wrypOVGx3OjCar7sBLD+NkwO4RaqFvdv0xuuy4x01VnOF Subject: Re: [PATCH v4 0/3] mm, treewide: Rename kzfree() to kfree_sensitive() Message-ID: <17e4fede-bab0-d93c-6964-69decc889d7d@ispras.ru> Date: Thu, 18 Jun 2020 00:31:01 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200617_143120_598622_66460BF7 X-CRM114-Status: GOOD ( 10.57 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Jason A . Donenfeld" , Michal Hocko , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-sctp@vger.kernel.org, target-devel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, devel@driverdev.osuosl.org, linux-cifs@vger.kernel.org, linux-scsi@vger.kernel.org, kasan-dev@googlegroups.com, linux-wpan@vger.kernel.org, Dan Carpenter , linux-pm@vger.kernel.org, ecryptfs@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-amlogic@lists.infradead.org, virtualization@lists.linux-foundation.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, David Sterba , linux-bluetooth@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, tipc-discussion@lists.sourceforge.net, linux-crypto@vger.kernel.org, Johannes Weiner , linux-integrity@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, wireguard@lists.zx2c4.com, linux-ppp@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On 6/16/20 9:53 PM, Joe Perches wrote: > On Mon, 2020-06-15 at 21:57 -0400, Waiman Long wrote: >> v4: >> - Break out the memzero_explicit() change as suggested by Dan Carpenter >> so that it can be backported to stable. >> - Drop the "crypto: Remove unnecessary memzero_explicit()" patch for >> now as there can be a bit more discussion on what is best. It will be >> introduced as a separate patch later on after this one is merged. > > To this larger audience and last week without reply: > https://lore.kernel.org/lkml/573b3fbd5927c643920e1364230c296b23e7584d.camel@perches.com/ > > Are there _any_ fastpath uses of kfree or vfree? > > Many patches have been posted recently to fix mispairings > of specific types of alloc and free functions. I've prepared a coccinelle script to highlight these mispairings in a function a couple of days ago: https://lkml.org/lkml/2020/6/5/953 I've listed all the fixes in the commit message. Not so many mispairings actually, and most of them are harmless like: kmalloc(E) -> kvfree(E) However, coccinelle script can't detect cross-functions mispairings, i.e. allocation in one function, free in another funtion. Thanks, Denis _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic