From mboxrd@z Thu Jan 1 00:00:00 1970 From: Inki Dae Subject: Re: [PATCH 08/14] exynos/fimg2d: check buffer space in g2d_blend() Date: Mon, 31 Aug 2015 22:19:50 +0900 Message-ID: <55E45476.6030008@samsung.com> References: <1440425649-9768-1-git-send-email-tjakobi@math.uni-bielefeld.de> <1440425649-9768-9-git-send-email-tjakobi@math.uni-bielefeld.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-reply-to: <1440425649-9768-9-git-send-email-tjakobi@math.uni-bielefeld.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Tobias Jakobi , linux-samsung-soc@vger.kernel.org Cc: gustavo.padovan@collabora.co.uk, emil.l.velikov@gmail.com, dri-devel@lists.freedesktop.org List-Id: linux-samsung-soc@vger.kernel.org T24gMjAxNeuFhCAwOOyblCAyNOydvCAyMzoxNCwgVG9iaWFzIEpha29iaSB3cm90ZToKPiBNb3Zl IHBhcmFtZXRlciB2YWxpZGF0aW9uIHRvIHRoZSB0b3AgYW5kIGFsc28gdmFsaWRhdGUKPiB0aGUg c2VsZWN0IG1vZGUgb2YgdGhlIHNvdXJjZSBpbWFnZSBhbmQgdGhlIHJlcXVlc3RlZAo+IGJsZW5k aW5nIG9wZXJhdGlvbiBiZWZvcmUgc3RhcnRpbmcgY29tbWFuZCBzdWJtaXNzaW9uLgo+IAo+IFNp Z25lZC1vZmYtYnk6IFRvYmlhcyBKYWtvYmkgPHRqYWtvYmlAbWF0aC51bmktYmllbGVmZWxkLmRl Pgo+IC0tLQo+ICBleHlub3MvZXh5bm9zX2ZpbWcyZC5jIHwgNjYgKysrKysrKysrKysrKysrKysr KysrKysrKysrKystLS0tLS0tLS0tLS0tLS0tLS0tLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDM5IGlu c2VydGlvbnMoKyksIDI3IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9leHlub3MvZXh5 bm9zX2ZpbWcyZC5jIGIvZXh5bm9zL2V4eW5vc19maW1nMmQuYwo+IGluZGV4IDc4MWFmZjUuLjVh Y2NjZjggMTAwNjQ0Cj4gLS0tIGEvZXh5bm9zL2V4eW5vc19maW1nMmQuYwo+ICsrKyBiL2V4eW5v cy9leHlub3NfZmltZzJkLmMKPiBAQCAtNjIzLDcgKzYyMyw0NSBAQCBnMmRfYmxlbmQoc3RydWN0 IGcyZF9jb250ZXh0ICpjdHgsIHN0cnVjdCBnMmRfaW1hZ2UgKnNyYywKPiAgCXVuaW9uIGcyZF9w b2ludF92YWwgcHQ7Cj4gIAl1bmlvbiBnMmRfYml0Ymx0X2NtZF92YWwgYml0Ymx0Owo+ICAJdW5p b24gZzJkX2JsZW5kX2Z1bmNfdmFsIGJsZW5kOwo+IC0JdW5zaWduZWQgaW50IHNyY193ID0gMCwg c3JjX2ggPSAwLCBkc3RfdyA9IDAsIGRzdF9oID0gMDsKPiArCXVuc2lnbmVkIGludCBnZW1fc3Bh Y2U7Cj4gKwl1bnNpZ25lZCBpbnQgc3JjX3csIHNyY19oLCBkc3RfdywgZHN0X2g7Cj4gKwo+ICsJ c3JjX3cgPSB3Owo+ICsJc3JjX2ggPSBoOwo+ICsJaWYgKHNyY194ICsgdyA+IHNyYy0+d2lkdGgp Cj4gKwkJc3JjX3cgPSBzcmMtPndpZHRoIC0gc3JjX3g7Cj4gKwlpZiAoc3JjX3kgKyBoID4gc3Jj LT5oZWlnaHQpCj4gKwkJc3JjX2ggPSBzcmMtPmhlaWdodCAtIHNyY195Owo+ICsKPiArCWRzdF93 ID0gdzsKPiArCWRzdF9oID0gaDsKPiArCWlmIChkc3RfeCArIHcgPiBkc3QtPndpZHRoKQo+ICsJ CWRzdF93ID0gZHN0LT53aWR0aCAtIGRzdF94Owo+ICsJaWYgKGRzdF95ICsgaCA+IGRzdC0+aGVp Z2h0KQo+ICsJCWRzdF9oID0gZHN0LT5oZWlnaHQgLSBkc3RfeTsKPiArCj4gKwl3ID0gTUlOKHNy Y193LCBkc3Rfdyk7Cj4gKwloID0gTUlOKHNyY19oLCBkc3RfaCk7Cj4gKwo+ICsJaWYgKHcgPD0g MCB8fCBoIDw9IDApIHsKPiArCQlmcHJpbnRmKHN0ZGVyciwgImludmFsaWQgd2lkdGggb3IgaGVp Z2h0LlxuIik7Cj4gKwkJcmV0dXJuIC1FSU5WQUw7Cj4gKwl9Cj4gKwo+ICsJaWYgKGcyZF92YWxp ZGF0ZV9zZWxlY3RfbW9kZShzcmMtPnNlbGVjdF9tb2RlKSkgewo+ICsJCWZwcmludGYoc3RkZXJy ICwgImludmFsaWQgc2VsZWN0IG1vZGUgZm9yIHNvdXJjZS5cbiIpOwo+ICsJCXJldHVybiAtRUlO VkFMOwo+ICsJfQo+ICsKPiArCWlmIChnMmRfdmFsaWRhdGVfYmxlbmRpbmdfb3Aob3ApKSB7Cj4g KwkJZnByaW50ZihzdGRlcnIgLCAidW5zdXBwb3J0ZWQgYmxlbmRpbmcgb3BlcmF0aW9uLlxuIik7 Cj4gKwkJcmV0dXJuIC1FSU5WQUw7Cj4gKwl9Cj4gKwo+ICsJZ2VtX3NwYWNlID0gc3JjLT5zZWxl Y3RfbW9kZSA9PSBHMkRfU0VMRUNUX01PREVfTk9STUFMID8gMiA6IDE7Cj4gKwo+ICsJaWYgKGcy ZF9jaGVja19zcGFjZShjdHgsIDEyLCBnZW1fc3BhY2UpKQo+ICsJCXJldHVybiAtRU5PU1BDOwoK QXMgSSBtZW50aW9uZWQgYmVmb3JlLCBhYm92ZSB0d28gbGluZXMgY291bGQgYmUgaW50ZWdyYXRl ZCB3aXRoIG90aGVyCnBhdGNoZXMuCgpUaGFua3MsCklua2kgRGFlCgo+ICAKPiAgCWJpdGJsdC52 YWwgPSAwOwo+ICAJYmxlbmQudmFsID0gMDsKPiBAQCAtNjUxLDMyICs2ODksNiBAQCBnMmRfYmxl bmQoc3RydWN0IGcyZF9jb250ZXh0ICpjdHgsIHN0cnVjdCBnMmRfaW1hZ2UgKnNyYywKPiAgCWNh c2UgRzJEX1NFTEVDVF9NT0RFX0JHQ09MT1I6Cj4gIAkJZzJkX2FkZF9jbWQoY3R4LCBCR19DT0xP Ul9SRUcsIHNyYy0+Y29sb3IpOwo+ICAJCWJyZWFrOwo+IC0JZGVmYXVsdDoKPiAtCQlmcHJpbnRm KHN0ZGVyciAsICJmYWlsZWQgdG8gc2V0IHNyYy5cbiIpOwo+IC0JCXJldHVybiAtRUlOVkFMOwo+ IC0JfQo+IC0KPiAtCXNyY193ID0gdzsKPiAtCXNyY19oID0gaDsKPiAtCWlmIChzcmNfeCArIHcg PiBzcmMtPndpZHRoKQo+IC0JCXNyY193ID0gc3JjLT53aWR0aCAtIHNyY194Owo+IC0JaWYgKHNy Y195ICsgaCA+IHNyYy0+aGVpZ2h0KQo+IC0JCXNyY19oID0gc3JjLT5oZWlnaHQgLSBzcmNfeTsK PiAtCj4gLQlkc3RfdyA9IHc7Cj4gLQlkc3RfaCA9IGg7Cj4gLQlpZiAoZHN0X3ggKyB3ID4gZHN0 LT53aWR0aCkKPiAtCQlkc3RfdyA9IGRzdC0+d2lkdGggLSBkc3RfeDsKPiAtCWlmIChkc3RfeSAr IGggPiBkc3QtPmhlaWdodCkKPiAtCQlkc3RfaCA9IGRzdC0+aGVpZ2h0IC0gZHN0X3k7Cj4gLQo+ IC0JdyA9IE1JTihzcmNfdywgZHN0X3cpOwo+IC0JaCA9IE1JTihzcmNfaCwgZHN0X2gpOwo+IC0K PiAtCWlmICh3IDw9IDAgfHwgaCA8PSAwKSB7Cj4gLQkJZnByaW50ZihzdGRlcnIsICJpbnZhbGlk IHdpZHRoIG9yIGhlaWdodC5cbiIpOwo+IC0JCWcyZF9yZXNldChjdHgpOwo+IC0JCXJldHVybiAt RUlOVkFMOwo+ICAJfQo+ICAKPiAgCWJpdGJsdC5kYXRhLmFscGhhX2JsZW5kX21vZGUgPSBHMkRf QUxQSEFfQkxFTkRfTU9ERV9FTkFCTEU7Cj4gCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2RyaS1kZXZlbAo=