From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] net: don't use kvzalloc for DMA memory Date: Wed, 18 Apr 2018 13:46:51 -0400 (EDT) Message-ID: <20180418.134651.2225112489265654270.davem@davemloft.net> References: <3e65977e-53cd-bf09-bc4b-0ce40e9091fe@gmail.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: eric.dumazet@gmail.com, edumazet@google.com, joby.poriyath@citrix.com, bhutchings@solarflare.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org To: mpatocka@redhat.com Return-path: In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Mikulas Patocka Date: Wed, 18 Apr 2018 12:44:25 -0400 (EDT) > The structure net_device is followed by arbitrary driver-specific data > (accessible with the function netdev_priv). And for virtio-net, these > driver-specific data must be in DMA memory. And we are saying that this assumption is wrong and needs to be corrected.