From mboxrd@z Thu Jan 1 00:00:00 1970 From: Inki Dae Subject: Re: [PATCH] drm/exynos/ipp: Validate buffer enqueue requests Date: Tue, 07 Apr 2015 20:36:49 +0900 Message-ID: <5523C151.1070705@samsung.com> References: <1425477769-5430-1-git-send-email-m.szyprowski@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-reply-to: <1425477769-5430-1-git-send-email-m.szyprowski@samsung.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Marek Szyprowski Cc: Andrzej Hajda , linux-samsung-soc@vger.kernel.org, dri-devel@lists.freedesktop.org, Beata Michalska List-Id: linux-samsung-soc@vger.kernel.org T24gMjAxNeuFhCAwM+yblCAwNOydvCAyMzowMiwgTWFyZWsgU3p5cHJvd3NraSB3cm90ZToKPiBG cm9tOiBCZWF0YSBNaWNoYWxza2EgPGIubWljaGFsc2thQHNhbXN1bmcuY29tPgo+IAo+IEFzIGZv ciBub3cgdGhlcmUgaXMgbm8gdmFsaWRhdGlvbiBvZiBpbmNvbWluZyBidWZmZXIKPiBlbnF1ZXVl IHJlcXVlc3QgYXMgZmFyIGFzIHRoZSBnZW0gYnVmZmVycyBhcmUgYmVpbmcKPiBjb25jZXJuZWQu IFRoaXMgbWlnaHQgbGVhZCB0byBzb21lIHVuZGVzaXJlZCBjYXNlcwo+IHdoZW4gdGhlIGRyaXZl ciB0cmllcyB0byBvcGVyYXRlIG9uIGludmFsaWQgYnVmZmVycwo+ICh3aWh0IG5vIHZhbGlkIGdl bSBvYmplY3QgaGFuZGxlIGkuZS4pLgo+IEFkZCBzb21lIGJhc2ljIGNoZWNrcyB0byBydWxlIG91 dCB0aG9zZSBwb3RlbnRpYWwgaXNzdWVzLgoKQXBwbGllZC4KClRoYW5rcywKSW5raSBEYWUKCj4g Cj4gU2lnbmVkLW9mZi1ieTogQmVhdGEgTWljaGFsc2thIDxiLm1pY2hhbHNrYUBzYW1zdW5nLmNv bT4KPiBbbXN6eXByb3c6IHJlYmFzZWQgb250byB2NC4wLXJjMSBhbmQgYWRhcHRlZCB0byByZWNl bnQgaXBwIGNoYW5nZXNdCj4gU2lnbmVkLW9mZi1ieTogTWFyZWsgU3p5cHJvd3NraSA8bS5zenlw cm93c2tpQHNhbXN1bmcuY29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vZXh5bm9zL2V4eW5v c19kcm1faXBwLmMgfCA0NCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysKPiAgMSBm aWxlIGNoYW5nZWQsIDQ0IGluc2VydGlvbnMoKykKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9n cHUvZHJtL2V4eW5vcy9leHlub3NfZHJtX2lwcC5jIGIvZHJpdmVycy9ncHUvZHJtL2V4eW5vcy9l eHlub3NfZHJtX2lwcC5jCj4gaW5kZXggMTJhZTljNC4uYWMzNTYyNSAxMDA2NDQKPiAtLS0gYS9k cml2ZXJzL2dwdS9kcm0vZXh5bm9zL2V4eW5vc19kcm1faXBwLmMKPiArKysgYi9kcml2ZXJzL2dw dS9kcm0vZXh5bm9zL2V4eW5vc19kcm1faXBwLmMKPiBAQCAtNDc2LDYgKzQ3Niw0NSBAQCBlcnJf Y2xlYXI6Cj4gIAlyZXR1cm4gcmV0Owo+ICB9Cj4gIAo+ICtzdGF0aWMgaW50IGlwcF92YWxpZGF0 ZV9tZW1fbm9kZShzdHJ1Y3QgZHJtX2RldmljZSAqZHJtX2RldiwKPiArCQkJCSBzdHJ1Y3QgZHJt X2V4eW5vc19pcHBfbWVtX25vZGUgKm1fbm9kZSwKPiArCQkJCSBzdHJ1Y3QgZHJtX2V4eW5vc19p cHBfY21kX25vZGUgKmNfbm9kZSkKPiArewo+ICsJc3RydWN0IGRybV9leHlub3NfaXBwX2NvbmZp ZyAqaXBwX2NmZzsKPiArCXVuc2lnbmVkIGludCBudW1fcGxhbmU7Cj4gKwl1bnNpZ25lZCBsb25n IG1pbl9zaXplLCBzaXplOwo+ICsJdW5zaWduZWQgaW50IGJwcDsKPiArCWludCBpOwo+ICsKPiAr CS8qIFRoZSBwcm9wZXJ0eSBpZCBzaG91bGQgYWxyZWFkeSBiZSB2YXJpZmllZCAqLwo+ICsJaXBw X2NmZyA9ICZjX25vZGUtPnByb3BlcnR5LmNvbmZpZ1ttX25vZGUtPnByb3BfaWRdOwo+ICsJbnVt X3BsYW5lID0gZHJtX2Zvcm1hdF9udW1fcGxhbmVzKGlwcF9jZmctPmZtdCk7Cj4gKwo+ICsJLyoq Cj4gKwkgKiBUaGlzIGlzIGEgcmF0aGVyIHNpbXBsaWZpZWQgdmFsaWRhdGlvbiBvZiBhIG1lbW9y eSBub2RlLgo+ICsJICogSXQgYmFzaWNhbGx5IHZlcmlmaWVzIHByb3ZpZGVkIGdlbSBvYmplY3Qg aGFuZGxlcwo+ICsJICogYW5kIHRoZSBidWZmZXIgc2l6ZXMgd2l0aCByZXNwZWN0IHRvIGN1cnJl bnQgY29uZmlndXJhdGlvbi4KPiArCSAqIFRoaXMgaXMgbm90IHRoZSBiZXN0IHRoYXQgY2FuIGJl IGRvbmUKPiArCSAqIGJ1dCBpdCBzZWVtcyBtb3JlIHRoYW4gZW5vdWdoCj4gKwkgKi8KPiArCWZv ciAoaSA9IDA7IGkgPCBudW1fcGxhbmU7ICsraSkgewo+ICsJCWlmICghbV9ub2RlLT5idWZfaW5m by5oYW5kbGVzW2ldKSB7Cj4gKwkJCURSTV9FUlJPUigiaW52YWxpZCBoYW5kbGUgZm9yIHBsYW5l ICVkXG4iLCBpKTsKPiArCQkJcmV0dXJuIC1FSU5WQUw7Cj4gKwkJfQo+ICsJCWJwcCA9IGRybV9m b3JtYXRfcGxhbmVfY3BwKGlwcF9jZmctPmZtdCwgaSk7Cj4gKwkJbWluX3NpemUgPSAoaXBwX2Nm Zy0+c3ouaHNpemUgKiBpcHBfY2ZnLT5zei52c2l6ZSAqIGJwcCkgPj4gMzsKPiArCQlzaXplID0g ZXh5bm9zX2RybV9nZW1fZ2V0X3NpemUoZHJtX2RldiwKPiArCQkJCQkgICAgICAgbV9ub2RlLT5i dWZfaW5mby5oYW5kbGVzW2ldLAo+ICsJCQkJCSAgICAgICBjX25vZGUtPmZpbHApOwo+ICsJCWlm IChtaW5fc2l6ZSA+IHNpemUpIHsKPiArCQkJRFJNX0VSUk9SKCJpbnZhbGlkIHNpemUgZm9yIHBs YW5lICVkXG4iLCBpKTsKPiArCQkJcmV0dXJuIC1FSU5WQUw7Cj4gKwkJfQo+ICsJfQo+ICsJcmV0 dXJuIDA7Cj4gK30KPiArCj4gIHN0YXRpYyBpbnQgaXBwX3B1dF9tZW1fbm9kZShzdHJ1Y3QgZHJt X2RldmljZSAqZHJtX2RldiwKPiAgCQlzdHJ1Y3QgZHJtX2V4eW5vc19pcHBfY21kX25vZGUgKmNf bm9kZSwKPiAgCQlzdHJ1Y3QgZHJtX2V4eW5vc19pcHBfbWVtX25vZGUgKm1fbm9kZSkKPiBAQCAt NTUyLDYgKzU5MSwxMSBAQCBzdGF0aWMgc3RydWN0IGRybV9leHlub3NfaXBwX21lbV9ub2RlCj4g IAl9Cj4gIAo+ICAJbXV0ZXhfbG9jaygmY19ub2RlLT5tZW1fbG9jayk7Cj4gKwlpZiAoaXBwX3Zh bGlkYXRlX21lbV9ub2RlKGRybV9kZXYsIG1fbm9kZSwgY19ub2RlKSkgewo+ICsJCWlwcF9wdXRf bWVtX25vZGUoZHJtX2RldiwgY19ub2RlLCBtX25vZGUpOwo+ICsJCW11dGV4X3VubG9jaygmY19u b2RlLT5tZW1fbG9jayk7Cj4gKwkJcmV0dXJuIEVSUl9QVFIoLUVGQVVMVCk7Cj4gKwl9Cj4gIAls aXN0X2FkZF90YWlsKCZtX25vZGUtPmxpc3QsICZjX25vZGUtPm1lbV9saXN0W3FidWYtPm9wc19p ZF0pOwo+ICAJbXV0ZXhfdW5sb2NrKCZjX25vZGUtPm1lbV9sb2NrKTsKPiAgCj4gCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGlu ZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=