From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 4/4] drm/dp/mst: Check peer device type before attempting EDID read Date: Wed, 26 Oct 2016 16:05:31 +0300 Message-ID: <20161026130531.GD4617@intel.com> References: <1477472755-15288-1-git-send-email-ville.syrjala@linux.intel.com> <1477472755-15288-5-git-send-email-ville.syrjala@linux.intel.com> <20161026125514.32jyrl44kiywuoz7@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id A42D86E891 for ; Wed, 26 Oct 2016 13:05:36 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20161026125514.32jyrl44kiywuoz7@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Daniel Vetter Cc: "Kirill A . Shutemov" , stable@vger.kernel.org, Carlos Santa , dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gV2VkLCBPY3QgMjYsIDIwMTYgYXQgMDI6NTU6MTRQTSArMDIwMCwgRGFuaWVsIFZldHRlciB3 cm90ZToKPiBPbiBXZWQsIE9jdCAyNiwgMjAxNiBhdCAxMjowNTo1NVBNICswMzAwLCB2aWxsZS5z eXJqYWxhQGxpbnV4LmludGVsLmNvbSB3cm90ZToKPiA+IEZyb206IFZpbGxlIFN5cmrDpGzDpCA8 dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4gPiAKPiA+IE9ubHkgY2VydGFpbiB0eXBl cyBvZiBwZHRzIGhhdmUgdGhlIEREQyBidXMgcmVnaXN0ZXJlZCwgc28gY2hlY2sgZm9yCj4gPiB0 aGF0IGJlZm9yZSB3ZSBhdHRlbXB0IHRoZSBFRElEIHJlYWQuIE90aHdld2lzZSB3ZSByaXNrIHBs YXlpbmcgYXJvdW5kCj4gPiB3aXRoIGFuIGkyYyBhZGFwdGVyIHRoYXQgZG9lc24ndCBhY3R1YWxs eSBleGlzdC4KPiA+IAo+ID4gQ2M6IHN0YWJsZUB2Z2VyLmtlcm5lbC5vcmcKPiA+IENjOiBDYXJs b3MgU2FudGEgPGNhcmxvcy5zYW50YUBpbnRlbC5jb20+Cj4gPiBDYzogS2lyaWxsIEEuIFNodXRl bW92IDxraXJpbGxAc2h1dGVtb3YubmFtZT4KPiA+IFRlc3RlZC1ieTogQ2FybG9zIFNhbnRhIDxj YXJsb3Muc2FudGFAaW50ZWwuY29tPgo+ID4gVGVzdGVkLWJ5OiBLaXJpbGwgQS4gU2h1dGVtb3Yg PGtpcmlsbEBzaHV0ZW1vdi5uYW1lPgo+ID4gQnVnemlsbGE6IGh0dHBzOi8vYnVncy5mcmVlZGVz a3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTk3NjY2Cj4gPiBTaWduZWQtb2ZmLWJ5OiBWaWxsZSBT eXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+ID4gLS0tCj4gPiAgZHJp dmVycy9ncHUvZHJtL2RybV9kcF9tc3RfdG9wb2xvZ3kuYyB8IDQgKysrLQo+ID4gIDEgZmlsZSBj aGFuZ2VkLCAzIGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKPiA+IAo+ID4gZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMgYi9kcml2ZXJzL2dwdS9k cm0vZHJtX2RwX21zdF90b3BvbG9neS5jCj4gPiBpbmRleCA5NTZiYWJjMTYxZTUuLjY5MGQxYjQw N2E5MCAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5 LmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfbXN0X3RvcG9sb2d5LmMKPiA+IEBA IC0xMTYyLDcgKzExNjIsOSBAQCBzdGF0aWMgdm9pZCBkcm1fZHBfYWRkX3BvcnQoc3RydWN0IGRy bV9kcF9tc3RfYnJhbmNoICptc3RiLAo+ID4gIAkJCWRybV9kcF9wdXRfcG9ydChwb3J0KTsKPiA+ ICAJCQlnb3RvIG91dDsKPiA+ICAJCX0KPiA+IC0JCWlmIChwb3J0LT5wb3J0X251bSA+PSBEUF9N U1RfTE9HSUNBTF9QT1JUXzApIHsKPiA+ICsJCWlmICgocG9ydC0+cGR0ID09IERQX1BFRVJfREVW SUNFX0RQX0xFR0FDWV9DT05WIHx8Cj4gPiArCQkgICAgIHBvcnQtPnBkdCA9PSBEUF9QRUVSX0RF VklDRV9TU1RfU0lOSykgJiYKPiA+ICsJCSAgICBwb3J0LT5wb3J0X251bSA+PSBEUF9NU1RfTE9H SUNBTF9QT1JUXzApIHsKPiAKPiBNYXRjaGVzIHdoYXQncyBpbiBkcm1fZHBfcG9ydF9zZXR1cF9w ZHQuIE5vdCBzdXJlIHRoaXMgaXMgdGhlIG1vc3QKPiByZWxpYWJsZSB3YXkgdG8gZG8gdGhpcyB0 aG91Z2gsIGJ1dCBJIGNhbid0IGNvbWUgdXAgd2l0aCBhbnl0aGluZyBiZXR0ZXIuCgpZZWFoLiBJ IGp1c3Qgd2VudCB3aXRoIHdoYXRldmVyIGxvb2tzIHNlbWktY29ycmVjdCBiYXNlZCBvbiB3aGVy ZSB0aGUKdGhpbmcgaXMgc2V0IHVwLiBJJ2QgaGF2ZSB0byBnbyByZWFkIHRoZSBhY3R1YWwgc3Bl YyB0byBmaWd1cmUgb3V0IGlmCnRoaXMgbWFrZXMgYW55IHJlYWwgc2Vuc2UuIEJ1dCBhdCBsZWFz dCBpdCBhdm9pZHMgdGhlIGV4cGxvc2lvbi4KCj4gCj4gUmV2aWV3ZWQtYnk6IERhbmllbCBWZXR0 ZXIgPGRhbmllbC52ZXR0ZXJAZmZ3bGwuY2g+Cj4gCj4gPiAgCQkJcG9ydC0+Y2FjaGVkX2VkaWQg PSBkcm1fZ2V0X2VkaWQocG9ydC0+Y29ubmVjdG9yLCAmcG9ydC0+YXV4LmRkYyk7Cj4gPiAgCQkJ ZHJtX21vZGVfY29ubmVjdG9yX3NldF90aWxlX3Byb3BlcnR5KHBvcnQtPmNvbm5lY3Rvcik7Cj4g PiAgCQl9Cj4gPiAtLSAKPiA+IDIuNy40Cj4gPiAKPiA+IF9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCj4gPiBkcmktZGV2ZWwgbWFpbGluZyBsaXN0Cj4gPiBk cmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gPiBodHRwczovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo+IAo+IC0tIAo+IERhbmllbCBWZXR0 ZXIKPiBTb2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24KPiBodHRwOi8vYmxvZy5m ZndsbC5jaAoKLS0gClZpbGxlIFN5cmrDpGzDpApJbnRlbCBPVEMKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmkt ZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3Jn L21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==