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Fri, 05 Apr 2019 18:30:12 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 7500334; Fri, 5 Apr 2019 16:30:11 +0000 (GMT) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 373D72948; Fri, 5 Apr 2019 16:30:11 +0000 (GMT) Received: from SFHDAG6NODE3.st.com (10.75.127.18) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 5 Apr 2019 18:30:10 +0200 Received: from SFHDAG6NODE3.st.com ([fe80::d04:5337:ab17:b6f6]) by SFHDAG6NODE3.st.com ([fe80::d04:5337:ab17:b6f6%20]) with mapi id 15.00.1347.000; Fri, 5 Apr 2019 18:30:10 +0200 From: Philippe CORNU To: Yannick FERTRE , Benjamin GAIGNARD , Vincent ABRIOU , "David Airlie" , Daniel Vetter , Maxime Coquelin , Alexandre TORGUE , "dri-devel@lists.freedesktop.org" , "linux-stm32@st-md-mailman.stormreply.com" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] drm/stm: ltdc: limit number of layer to avoid memory overflow Thread-Topic: [PATCH] drm/stm: ltdc: limit number of layer to avoid memory overflow Thread-Index: AQHU6f57Senmzdbf/UOw+qUZxi2PsKYtpCeA Date: Fri, 5 Apr 2019 16:30:10 +0000 Message-ID: <51100130-dfe9-ae21-6efb-b1394f607bdd@st.com> References: <1554283216-2700-1-git-send-email-yannick.fertre@st.com> In-Reply-To: <1554283216-2700-1-git-send-email-yannick.fertre@st.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.45] Content-Type: text/plain; charset="utf-8" Content-ID: <78FB76E3E78C984BA9F25E5DA1F8A424@st.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-04-05_12:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RGVhciBZYW5uaWNrLA0KVGhhbmsgeW91IGZvciB5b3VyIHBhdGNoLA0KDQpBY2tlZC1ieTogUGhp bGlwcGUgQ29ybnUgPHBoaWxpcHBlLmNvcm51QHN0LmNvbT4NCg0KUGhpbGlwcGUgOikNCg0KT24g NC8zLzE5IDExOjIwIEFNLCBZYW5uaWNrIEZlcnRyw6kgd3JvdGU6DQo+IElmIHRoZSBudW1iZXIg b2YgbGF5ZXIgaXMgZ3JlYXRlciB0aGFuIExURENfTUFYX0xBWUVSLCB3ZSBjYW4gaGF2ZQ0KPiBt ZW1vcnkgb3ZlcmZsb3cgd2hlbiByZWFkaW5nIHBsYW5lX2Zwc2lbXS4NCj4gDQo+IFNpZ25lZC1v ZmYtYnk6IFlhbm5pY2sgRmVydHLDqSA8eWFubmljay5mZXJ0cmVAc3QuY29tPg0KPiAtLS0NCj4g ICBkcml2ZXJzL2dwdS9kcm0vc3RtL2x0ZGMuYyB8IDcgKysrKystLQ0KPiAgIDEgZmlsZSBjaGFu Z2VkLCA1IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pDQo+IA0KPiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL3N0bS9sdGRjLmMgYi9kcml2ZXJzL2dwdS9kcm0vc3RtL2x0ZGMuYw0K PiBpbmRleCAzMmZkNmEzLi4wNWJkNGI2IDEwMDY0NA0KPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0v c3RtL2x0ZGMuYw0KPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vc3RtL2x0ZGMuYw0KPiBAQCAtMTAy MSwxMCArMTAyMSwxMyBAQCBzdGF0aWMgaW50IGx0ZGNfZ2V0X2NhcHMoc3RydWN0IGRybV9kZXZp Y2UgKmRkZXYpDQo+ICAgCXN0cnVjdCBsdGRjX2RldmljZSAqbGRldiA9IGRkZXYtPmRldl9wcml2 YXRlOw0KPiAgIAl1MzIgYnVzX3dpZHRoX2xvZzIsIGxjciwgZ2MycjsNCj4gICANCj4gLQkvKiBh dCBsZWFzdCAxIGxheWVyIG11c3QgYmUgbWFuYWdlZCAqLw0KPiArCS8qDQo+ICsJICogYXQgbGVh c3QgMSBsYXllciBtdXN0IGJlIG1hbmFnZWQgJiB0aGUgbnVtYmVyIG9mIGxheWVycw0KPiArCSAq IG11c3Qgbm90IGV4Y2VlZCBMVERDX01BWF9MQVlFUg0KPiArCSAqLw0KPiAgIAlsY3IgPSByZWdf cmVhZChsZGV2LT5yZWdzLCBMVERDX0xDUik7DQo+ICAgDQo+IC0JbGRldi0+Y2Fwcy5uYl9sYXll cnMgPSBtYXhfdChpbnQsIGxjciwgMSk7DQo+ICsJbGRldi0+Y2Fwcy5uYl9sYXllcnMgPSBjbGFt cCgoaW50KWxjciwgMSwgTFREQ19NQVhfTEFZRVIpOw0KPiAgIA0KPiAgIAkvKiBzZXQgZGF0YSBi dXMgd2lkdGggKi8NCj4gICAJZ2MyciA9IHJlZ19yZWFkKGxkZXYtPnJlZ3MsIExURENfR0MyUik7 DQo+IA==