From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tobias Jakobi Subject: Re: [PATCH] drm/exynos: g2d: fix overflow of cmdlist size Date: Thu, 19 Jan 2017 14:16:09 +0100 Message-ID: <5880BC19.8080000@math.uni-bielefeld.de> References: <1484628126-21671-1-git-send-email-jy0922.shim@samsung.com> <587E2922.10805@math.uni-bielefeld.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Joonyoung Shim , Tobias Jakobi , dri-devel@lists.freedesktop.org Cc: linux-samsung-soc@vger.kernel.org, sw0312.kim@samsung.com List-Id: linux-samsung-soc@vger.kernel.org SGVsbG8gSm9vbnlvdW5nLAoKSm9vbnlvdW5nIFNoaW0gd3JvdGU6Cj4gSGkgVG9iaWFzLAo+IAo+ IE9uIDAxLzE3LzIwMTcgMTE6MjQgUE0sIFRvYmlhcyBKYWtvYmkgd3JvdGU6Cj4+IEpvb255b3Vu ZyBTaGltIHdyb3RlOgo+Pj4gVGhlIHNpemUgb2YgY21kbGlzdCBpcyBpbnRlZ2VyIHR5cGUsIHNv IGl0IGNhbiBiZSBvdmVyZmxvd2VkIGJ5IGNtZCBhbmQKPj4+IGNtZF9idWYgdGhhdCBoYXMgdG9v IGJpZyBzaXplLiBUaGlzIHBhdGNoIHdpbGwgZml4IG92ZXJmbG93IGlzc3VlIGFzCj4+PiBjaGVj a2luZyBtYXhpbXVtIHNpemUgb2YgY21kIGFuZCBjbWRfYnVmLgo+PiBJIGRvbid0IHVuZGVyc3Rh bmQvc2VlIHRoZSBpc3N1ZSBoZXJlLiBDb3VsZCB5b3UgcG9pbnQgb3V0IGZvciB3aGljaAo+PiBp bnB1dCBvZiB0aGUgc2V0X2NtZGxpc3QgaW9jdGwgeW91IHNlZSB0aGlzIHBhcnRpY3VsYXIgb3Zl cmZsb3c/Cj4+Cj4+IEluIHBhcnRpY3VsYXIgaXQgaXMgbm90IGNsZWFyIHRvIG1lIHdoaWNoIHNp emUgZmllbGQgeW91J3JlIHRhbGtpbmcKPj4gYWJvdXQuIHN0cnVjdCBnMmRfY21kbGlzdCBkb2Vz IG5vdCBoYXZlIGFueSBmaWVsZCBuYW1lZCAnc2l6ZScuCj4+Cj4gCj4gSSBtZWFuIHNpemUgb2Yg Y21kbGlzdCBpcwo+IHNpemUgPSBjbWRsaXN0LT5sYXN0ICsgcmVxLT5jbWRfbnIgKiAyICsgcmVx LT5jbWRfYnVmX25yICogMiArIDI7Cj4gaW4gZXh5bm9zX2cyZF9zZXRfY21kbGlzdF9pb2N0bCgp LgpvaywgdGhhdCBtYWtlcyB0aGluZ3MgbW9yZSBjbGVhci4gQnV0IHRoZW4geW91IG5lZWQgdG8g Zml4IHRoZSBjb21taXQKbWVzc2FnZS4gVGhlIGN1cnJlbnQgbWVzc2FnZSBpbXBsaWVzIHRoYXQg dGhpcyAnc2l6ZScgeW91J3JlIHRhbGtpbmcKYWJvdXQgaXMgc29tZSBwcm9wZXJ0eSBvZiB0aGUg Y21kbGlzdC4KCkFsc28gdGhlIG5ldyBjb21tZW50IGlzIHdyb25nLgovKiBDaGVjayBzaXplIG9m IGNtZCBhbmQgY21kbGlzdDogbGFzdCAyIGlzIGFib3V0IEcyRF9CSVRCTFRfU1RBUlQgKi8KCldo YXQgaXMgY21kIGFuZCBjbWRsaXN0PyBZb3UncmUgbWl4aW5nIHR3byBkaWZmZXJlbnQgdGhpbmdz IGhlcmUuIFdlIGFyZQpzdGlsbCBjaGVja2luZyB0aGUgc2l6ZSBvZiAnY21kbGlzdCcgKHdoaWNo IGlzIGEgc3RydWN0IGcyZF9jbWRsaXN0KSBoZXJlLgoKV2hhdCB5b3UgYWRkIGlzIGEgY2hlY2sg Zm9yIHRoZSBmaWVsZHMgb2YgJ3JlcScgKHdoaWNoIGlzIGEgc3RydWN0CmRybV9leHlub3NfZzJk X3NldF9jbWRsaXN0KS4KCldpdGggYWxsIHRoYXQgc2FpZCwgSSBkb24ndCBsaWtlIHRoZSBjaGFu Z2VzLiBJIHNlZSB0aGUgaXNzdWUsIGJ1dCB0aGUKY3VycmVudCBzb2x1dGlvbiBzaG91bGQgYmUg Y2xlYW5lci4KCkkgcHJvcG9zZSB0aGlzLiBXZSBqdXN0IGNoZWNrIHJlcS0+Y21kX2J1Zl9uciBh bmQgcmVxLT5jbWRfbnIgYWdhaW5zdApHMkRfQ01ETElTVF9EQVRBX05VTS4gVGhpcyBsZWF2ZXMg dXMgZW5vdWdoIGhlYWRyb20gc28gdGhhdCB0aGUgbGF0ZXIKY29tcHV0YXRpb24gKGkuZS4gd2hh dCBpcyBlbmRpbmcgdXAgaW4gdGhlIGxvY2FsIHZhcmlhYmxlICdzaXplJykgY2FuCm5ldmVyIG92 ZXJmbG93LgoKRm9yIGEgY29tbWVudCBmb3IgdGhlIGNoZWNrIEkgcHJvcG9zZSB0aGlzOgoiVG8g YXZvaWQgYW4gaW50ZWdlciBvdmVyZmxvdyBmb3IgdGhlIGxhdGVyIHNpemUgY29tcHV0YXRpb25z LCB3ZQplbmZvcmNlIGEgbWF4aW11bSBudW1iZXIgb2Ygc3VibWl0dGVkIGNvbW1hbmRzIGhlcmUu IFRoaXMgbGltaXQgaXMKc3VmZmljaWVudCBmb3IgYWxsIGNvbmNlaXZhYmxlIHVzYWdlIGNhc2Vz IG9mIHRoZSBHMkQuIgoKCgpXaXRoIGJlc3Qgd2lzaGVzLApUb2JpYXMKCgo+IAo+IFlvdSBjYW4g cmVwcm9kdWNlIG92ZXJmbG93IG9mIHNpemUgZWFzaWx5IGlmIHlvdSB1c2UgdmFsdWUgbGlrZQo+ IDQyOTQ5NjcyOTUgb3IgMjE0NzQ4MzY0NyBhdCB0aGUgcmVxLT5jbWRfYnVmX25yLgo+IAo+IFRo YW5rcy4KPiAtLQo+IFRvIHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5l ICJ1bnN1YnNjcmliZSBsaW51eC1zYW1zdW5nLXNvYyIgaW4KPiB0aGUgYm9keSBvZiBhIG1lc3Nh Z2UgdG8gbWFqb3Jkb21vQHZnZXIua2VybmVsLm9yZwo+IE1vcmUgbWFqb3Jkb21vIGluZm8gYXQg IGh0dHA6Ly92Z2VyLmtlcm5lbC5vcmcvbWFqb3Jkb21vLWluZm8uaHRtbAo+IAoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVsIG1haWxpbmcg bGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==