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=-5.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham 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 EDB92C43219 for ; Tue, 30 Apr 2019 17:01:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADE6E21670 for ; Tue, 30 Apr 2019 17:01:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="KYUTkcy/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726706AbfD3RBB (ORCPT ); Tue, 30 Apr 2019 13:01:01 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:50313 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725930AbfD3RBB (ORCPT ); Tue, 30 Apr 2019 13:01:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=BtznMGJClosN3hpxBR1MF0LMvYBaVQU8HSmMwTGaRr8=; b=KYUTkcy/1PFlnjOIw1wgJDFgis +s7lU7WwA1BKBZnFKsf6TQXYzMjApzfvg8MOeNMi2Fdw2f3CMud2ay+5Kz661eyP8fZlMWBfq7Hz1 NiVYYpz92RERpcrLdZRxFAV1yFxmodOhN9oMn24m3Za211N7pVMCXcWbiVyo/hKb6ddU=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1hLW7e-0001xJ-Ul; Tue, 30 Apr 2019 19:00:50 +0200 Date: Tue, 30 Apr 2019 19:00:50 +0200 From: Andrew Lunn To: Esben Haabendal Cc: netdev@vger.kernel.org, "David S. Miller" , Michal Simek , Yang Wei , Luis Chamberlain , YueHaibing , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 08/12] net: ll_temac: Fix iommu/swiotlb leak Message-ID: <20190430170050.GD30817@lunn.ch> References: <20190429083422.4356-1-esben@geanix.com> <20190430071759.2481-1-esben@geanix.com> <20190430071759.2481-9-esben@geanix.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190430071759.2481-9-esben@geanix.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 30, 2019 at 09:17:55AM +0200, Esben Haabendal wrote: > Unmap the actual buffer length, not the amount of data received, avoiding > resource exhaustion of swiotlb (seen on x86_64 platform). > > Signed-off-by: Esben Haabendal Reviewed-by: Andrew Lunn Andrew