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Fri, 12 Jul 2019 15:47:01 +0000 Received: from EX13D01EUB003.ant.amazon.com (10.43.166.248) by EX13D01EUB001.ant.amazon.com (10.43.166.194) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Fri, 12 Jul 2019 15:46:59 +0000 Received: from EX13D01EUB003.ant.amazon.com ([10.43.166.248]) by EX13D01EUB003.ant.amazon.com ([10.43.166.248]) with mapi id 15.00.1367.000; Fri, 12 Jul 2019 15:47:00 +0000 From: "Raslan, KarimAllah" To: "will@kernel.org" CC: "linux-kernel@vger.kernel.org" , "yaojun8558363@gmail.com" , "ard.biesheuvel@linaro.org" , "linux@armlinux.org.uk" , "tglx@linutronix.de" , "james.morse@arm.com" , "robin.murphy@arm.com" , "akpm@linux-foundation.org" , "mark.rutland@arm.com" , "info@metux.net" , "catalin.marinas@arm.com" , "yuzhao@google.com" , "rppt@linux.ibm.com" , "linux-arm-kernel@lists.infradead.org" , "anders.roxell@linaro.org" , "anshuman.khandual@arm.com" Subject: Re: [PATCH] arm: Extend the check for RAM in /dev/mem Thread-Topic: [PATCH] arm: Extend the check for RAM in /dev/mem Thread-Index: AQHVODcIGfDHKrKqiE2jyO8cjDhCoqbHE70AgAAEl4CAAAXNgIAAA4OA Date: Fri, 12 Jul 2019 15:46:59 +0000 Message-ID: <1562946417.1345.20.camel@amazon.de> References: <1562883681-18659-1-git-send-email-karahmed@amazon.de> <20190712145711.mxmnuyn6kpv2dr7u@willie-the-truck> <1562944417.1345.17.camel@amazon.de> <20190712153423.ypyqexfmajrmsa5r@willie-the-truck> In-Reply-To: <20190712153423.ypyqexfmajrmsa5r@willie-the-truck> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.43.166.107] Content-Type: text/plain; charset="utf-8" Content-ID: MIME-Version: 1.0 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gRnJpLCAyMDE5LTA3LTEyIGF0IDE2OjM0ICswMTAwLCBXaWxsIERlYWNvbiB3cm90ZToNCj4g T24gRnJpLCBKdWwgMTIsIDIwMTkgYXQgMDM6MTM6MzhQTSArMDAwMCwgUmFzbGFuLCBLYXJpbUFs bGFoIHdyb3RlOg0KPiA+IA0KPiA+IE9uIEZyaSwgMjAxOS0wNy0xMiBhdCAxNTo1NyArMDEwMCwg V2lsbCBEZWFjb24gd3JvdGU6DQo+ID4gPiANCj4gPiA+IE9uIEZyaSwgSnVsIDEyLCAyMDE5IGF0 IDEyOjIxOjIxQU0gKzAyMDAsIEthcmltQWxsYWggQWhtZWQgd3JvdGU6DQo+ID4gPiA+IA0KPiA+ ID4gPiANCj4gPiA+ID4gZGlmZiAtLWdpdCBhL2FyY2gvYXJtNjQvbW0vbW11LmMgYi9hcmNoL2Fy bTY0L21tL21tdS5jDQo+ID4gPiA+IGluZGV4IDM2NDVmMjkuLmNkYzNlOGUgMTAwNjQ0DQo+ID4g PiA+IC0tLSBhL2FyY2gvYXJtNjQvbW0vbW11LmMNCj4gPiA+ID4gKysrIGIvYXJjaC9hcm02NC9t bS9tbXUuYw0KPiA+ID4gPiBAQCAtNzgsNyArNzgsNyBAQCB2b2lkIHNldF9zd2FwcGVyX3BnZChw Z2RfdCAqcGdkcCwgcGdkX3QgcGdkKQ0KPiA+ID4gPiAgcGdwcm90X3QgcGh5c19tZW1fYWNjZXNz X3Byb3Qoc3RydWN0IGZpbGUgKmZpbGUsIHVuc2lnbmVkIGxvbmcgcGZuLA0KPiA+ID4gPiAgCQkJ ICAgICAgdW5zaWduZWQgbG9uZyBzaXplLCBwZ3Byb3RfdCB2bWFfcHJvdCkNCj4gPiA+ID4gIHsN Cj4gPiA+ID4gLQlpZiAoIXBmbl92YWxpZChwZm4pKQ0KPiA+ID4gPiArCWlmICghbWVtYmxvY2tf aXNfbWVtb3J5KF9fcGZuX3RvX3BoeXMocGZuKSkpDQo+ID4gPiANCj4gPiA+IFRoaXMgbG9va3Mg YnJva2VuIHRvIG1lLCBzaW5jZSBpdCB3aWxsIGVuZCB1cCByZXR1cm5pbmcgJ3RydWUnIGZvciBu b21hcA0KPiA+ID4gbWVtb3J5IGFuZCB3ZSByZWFsbHkgZG9uJ3Qgd2FudCB0byBtYXAgdGhhdCB1 c2luZyB3cml0ZWJhY2sgYXR0cmlidXRlcy4NCj4gPiANCj4gPiBUcnVlLCBJIHdpbGwgZml4IHRo aXMgYnkgdXNpbmfCoG1lbWJsb2NrX2lzX21hcF9tZW1vcnkgaW5zdGVhZC4gVGhhdCBzYWlkLCBk bw0KPiA+IHlvdSBoYXZlIGFueSBjb25jZXJucyBhYm91dCB0aGlzIGFwcHJvYWNoIGluwqBnZW5l cmFsPw0KPiANCj4gSWYgeW91IGRvIHRoYXQsIEkgZG9uJ3QgdW5kZXJzdGFuZCB3aHkgeW91IG5l ZWQgdGhlIHBhdGNoIGF0IGFsbCBnaXZlbiBvdXINCj4gaW1wbGVtZW50YXRpb24gb2YgcGZuX3Zh bGlkKCkgaW4gYXJjaC9hcm02NC9tbS9pbml0LmMuDQoNCk9vcHMhIFJpZ2h0LCBJIGd1ZXNzIHRo YXQgd291bGQgbm90IHdvcmsgZWl0aGVyLg0KDQpMZXQgbWUgZGlnIGludG8gYSBiZXR0ZXIgd2F5 IHRvIGRvIHRoYXQuDQoNCj4gDQo+IFdpbGwNCgoKCkFtYXpvbiBEZXZlbG9wbWVudCBDZW50ZXIg R2VybWFueSBHbWJICktyYXVzZW5zdHIuIDM4CjEwMTE3IEJlcmxpbgpHZXNjaGFlZnRzZnVlaHJ1 bmc6IENocmlzdGlhbiBTY2hsYWVnZXIsIFJhbGYgSGVyYnJpY2gKRWluZ2V0cmFnZW4gYW0gQW10 c2dlcmljaHQgQ2hhcmxvdHRlbmJ1cmcgdW50ZXIgSFJCIDE0OTE3MyBCClNpdHo6IEJlcmxpbgpV c3QtSUQ6IERFIDI4OSAyMzcgODc5CgoK