Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752280AbbLLROR (ORCPT ); Sat, 12 Dec 2015 12:14:17 -0500 Received: from sauhun.de ([89.238.76.85]:56830 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751635AbbLLROP (ORCPT ); Sat, 12 Dec 2015 12:14:15 -0500 Date: Sat, 12 Dec 2015 18:13:55 +0100 From: Wolfram Sang To: Sanchayan Maity Cc: linux-input@vger.kernel.org, linux-i2c@vger.kernel.org, dmitry.torokhov@gmail.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, maxime.ripard@free-electrons.com, stefan@agner.ch Subject: Re: touchscreen: edt-ft5x06: Prevent DMA driver from mapping an area on stack Message-ID: <20151212171355.GA7362@katana> References: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="SLDf9lqlvOQaIe6s" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1826 Lines: 45 --SLDf9lqlvOQaIe6s Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > Frankly speaking I do not know where the fix should actually be. I2C IMX > driver somehow taking care of this or the users of I2C, touchscreen drivers > in this case. In my opinion, the fix should be with the touchscreen driver > however I did like to have feedback or hear opinions on what is the accepted > solution to this. There is no accepted solution to this yet :( DMA is/was still too rare for a serious discussion about this. There is also [1] and probably more... [1] http://patchwork.ozlabs.org/patch/220137/ --SLDf9lqlvOQaIe6s Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJWbFXTAAoJEBQN5MwUoCm2JCcP/jyAd6I4vbr4U52qIUYv+VRM 4Qx7hd9oVfWCnUpiVHkJDmKIdD8vanwPsWhpOBAPhzftIHGAxUzFL6bcb2t5+CEk w+vTMeO7HDad2r/1134do7/sr896U3iyqaXrar4hHxh+nvo7lmXnnebw7R5o2DJ9 7uz0IorL/6NTEhzGF+Gsco7DvmKwnEbuZQTQnF1gkCdN9nZE7Nxiih8g35Sz92E5 sGVPA6ZOeW0vv4iP+RdfG0XDv6OnPWnGP4rxZKsUIGPMlbm21Ba4SiT0v/y+fbc4 n/R7A+nvUBholzvvkhxUS8f23wIZ+hhSsD7eeS4l3bfTnJcXszoZR9HXvS644Lmu 3m6tOKV43SW7IQXWH5+EH4ii+wqWVswT7vMp1g9LyTN76fQYypTcbqIA3XXELXOe nQlrK/yHVbSR5xw/+6YaLKpP+tfzF0MhXvXnG2hIRxqFNKVToq3gFRV5iPcDkgd8 mMo0ZELnQMcJuNzNR4ENDS+1gIBlpssb9cxNdwpnaFlwnWXs5DSaj8NOlQ9fIcpv MIEJ/YCCirSWuDz4eZwPNgX8mgaHHQ31/fp4n/KWcauQ8ezdBxkdW0uSxZtmOiYd 9kHsGrX70T2mFMHa+VhdfHZADYvOWU5oy0IR0C9qNNFVw0m3UpThy0FmUlMmjaGa viFaqunGmWvbmEBWLE1H =ca9L -----END PGP SIGNATURE----- --SLDf9lqlvOQaIe6s-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/