From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Paul Subject: Re: [PATCH v3 10/24] drm/rockchip: dw-mipi-dsi: don't assume buffer is aligned Date: Mon, 30 Jan 2017 15:08:11 -0500 Message-ID: <20170130200811.GK20076@art_vandelay> References: <20170129132444.25251-1-john@metanate.com> <20170129132444.25251-11-john@metanate.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20170129132444.25251-11-john@metanate.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: John Keeping Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, Chris Zhong , linux-arm-kernel@lists.infradead.org List-Id: linux-rockchip.vger.kernel.org T24gU3VuLCBKYW4gMjksIDIwMTcgYXQgMDE6MjQ6MzBQTSArMDAwMCwgSm9obiBLZWVwaW5nIHdy b3RlOgo+IEJ5IGRlcmVmZXJlbmNpbmcgdGhlIE1JUEkgY29tbWFuZCBidWZmZXIgYXMgYSB1MzIq IHdlIHJlbHkgb24gaXQgYmVpbmcKPiBjb3JyZWN0bHkgYWxpZ25lZCBvbiBBUk0sIGJ1dCB0aGlz IG1heSBub3QgYmUgdGhlIGNhc2UuICBDb3B5IGl0IGludG8gYQo+IHN0YWNrIHZhcmlhYmxlIHRo YXQgd2lsbCBiZSBjb3JyZWN0bHkgYWxpZ25lZC4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBKb2huIEtl ZXBpbmcgPGpvaG5AbWV0YW5hdGUuY29tPgo+IFJldmlld2VkLWJ5OiBDaHJpcyBaaG9uZyA8enl3 QHJvY2stY2hpcHMuY29tPgo+IC0tLQo+IHYzOgo+IC0gQWRkIENocmlzJyBSZXZpZXdlZC1ieQo+ IFVuY2hhbmdlZCBpbiB2Mgo+IAo+ICBkcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvZHctbWlwaS1k c2kuYyB8IDEyICsrKysrKystLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCsp LCA1IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vcm9ja2No aXAvZHctbWlwaS1kc2kuYyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9kdy1taXBpLWRzaS5j Cj4gaW5kZXggMDNmYzA5NmZlMWJkLi5kZGJjMDM3ZTdjZWQgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v cm9ja2NoaXAvZHctbWlwaS1kc2kuYwo+IEBAIC02MDcsMTAgKzYwNywxMCBAQCBzdGF0aWMgaW50 IGR3X21pcGlfZHNpX2Rjc19zaG9ydF93cml0ZShzdHJ1Y3QgZHdfbWlwaV9kc2kgKmRzaSwKPiAg c3RhdGljIGludCBkd19taXBpX2RzaV9kY3NfbG9uZ193cml0ZShzdHJ1Y3QgZHdfbWlwaV9kc2kg KmRzaSwKPiAgCQkJCSAgICAgIGNvbnN0IHN0cnVjdCBtaXBpX2RzaV9tc2cgKm1zZykKPiAgewo+ IC0JY29uc3QgdTMyICp0eF9idWYgPSBtc2ctPnR4X2J1ZjsKPiAtCWludCBsZW4gPSBtc2ctPnR4 X2xlbiwgcGxkX2RhdGFfYnl0ZXMgPSBzaXplb2YoKnR4X2J1ZiksIHJldDsKPiArCWNvbnN0IHU4 ICp0eF9idWYgPSBtc2ctPnR4X2J1ZjsKPiArCWludCBsZW4gPSBtc2ctPnR4X2xlbiwgcGxkX2Rh dGFfYnl0ZXMgPSBzaXplb2YodTMyKSwgcmV0Owo+ICAJdTMyIGhkcl92YWwgPSBHRU5fSERBVEEo bXNnLT50eF9sZW4pIHwgR0VOX0hUWVBFKG1zZy0+dHlwZSk7Cj4gLQl1MzIgcmVtYWluZGVyID0g MDsKPiArCXUzMiByZW1haW5kZXI7Cj4gIAl1MzIgdmFsOwo+ICAKPiAgCWlmIChtc2ctPnR4X2xl biA8IDMpIHsKPiBAQCAtNjIxLDEyICs2MjEsMTQgQEAgc3RhdGljIGludCBkd19taXBpX2RzaV9k Y3NfbG9uZ193cml0ZShzdHJ1Y3QgZHdfbWlwaV9kc2kgKmRzaSwKPiAgCj4gIAl3aGlsZSAoRElW X1JPVU5EX1VQKGxlbiwgcGxkX2RhdGFfYnl0ZXMpKSB7Cj4gIAkJaWYgKGxlbiA8IHBsZF9kYXRh X2J5dGVzKSB7Cj4gKwkJCXJlbWFpbmRlciA9IDA7Cj4gIAkJCW1lbWNweSgmcmVtYWluZGVyLCB0 eF9idWYsIGxlbik7Cj4gIAkJCWRzaV93cml0ZShkc2ksIERTSV9HRU5fUExEX0RBVEEsIHJlbWFp bmRlcik7Cj4gIAkJCWxlbiA9IDA7Cj4gIAkJfSBlbHNlIHsKPiAtCQkJZHNpX3dyaXRlKGRzaSwg RFNJX0dFTl9QTERfREFUQSwgKnR4X2J1Zik7Cj4gLQkJCXR4X2J1ZisrOwo+ICsJCQltZW1jcHko JnJlbWFpbmRlciwgdHhfYnVmLCBwbGRfZGF0YV9ieXRlcyk7Cj4gKwkJCWRzaV93cml0ZShkc2ks IERTSV9HRU5fUExEX0RBVEEsIHJlbWFpbmRlcik7Cj4gKwkJCXR4X2J1ZiArPSBwbGRfZGF0YV9i eXRlczsKPiAgCQkJbGVuIC09IHBsZF9kYXRhX2J5dGVzOwo+ICAJCX0KCgpZb3UgY2FuIGNsZWFu IHRoaXMgdXAgZnVydGhlciBieSByZW1vdmluZyBhIGNvdXBsZSBvZiB0aGUgbG9jYWxzLCB0aGUK Y29uZGl0aW9uYWwgYW5kIHRoZSBkaXZpc2lvbjoKCndoaWxlKGxlbiA8IG1zZy0+dHhfbGVuKSB7 CiAgICAgICAgc2l6ZV90IHRvX3dyaXRlID0gTUlOKG1zZy0+dHhfbGVuIC0gbGVuLCBzaXplb2Yo cmVtYWluZGVyKSk7CgogICAgICAgIG1lbWNweSgmcmVtYWluZGVyLCBtc2ctPnR4X2J1ZiArIGxl biwgdG9fd3JpdGUpOwogICAgICAgIGRzaV93cml0ZShkc2ksIERTSV9HRU5fUExEX0RBVEEsIHJl bWFpbmRlcik7CiAgICAgICAgbGVuICs9IHRvX3dyaXRlOwoKICAgICAgICAuLi4KfQoKU2VhbgoK Cj4gIAo+IC0tIAo+IDIuMTEuMC4xOTcuZ2I1NTZkZTUuZGlydHkKPiAKPiBfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+IGRyaS1kZXZlbCBtYWlsaW5nIGxp c3QKPiBkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cHM6Ly9saXN0cy5mcmVl ZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwKCi0tIApTZWFuIFBhdWwsIFNv ZnR3YXJlIEVuZ2luZWVyLCBHb29nbGUgLyBDaHJvbWl1bSBPUwpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1k ZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK