From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A752D42065 for ; Thu, 3 Oct 2024 17:08:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.58.86.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727975283; cv=none; b=cUfXZ8tOFl4NDqiuleggv5c5tE2juGBDrKO4TXcfBAU+uCGMdoRWgOsA5os0u34aNysTme0lvv7SJzDOeQxO7SsEaMj4bgwE//pKnhObySqZLtlW3Ecg7MMRjgQ8qLTmov4U3tp1csJRWG/VDvny0lRcXyxXDcwcJgexH5HCXnE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727975283; c=relaxed/simple; bh=0Ij5XWAwsZPbw+bPDgqpD8vZ9GGw/q1i15KLrImp22Q=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: MIME-Version:Content-Type; b=su4iTBzxkg0XpBCNO5uC7CgeCMYTnMrYqfhATDdMvwTtekYpirdtjEqoHz0ifqigtcveljjvRbOE/9NeWSacNLKexTFCfyNHmOZgxpDGEUF6/aHYETpcqc5MRyIAlyTmeJtn0oAzRX2dRdYE65NHar3Ym66jzlSL7ONedZ7iHIE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM; spf=pass smtp.mailfrom=aculab.com; arc=none smtp.client-ip=185.58.86.151 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aculab.com Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-213-dw_JzulIP0eg1EL9EfNb8Q-1; Thu, 03 Oct 2024 18:07:53 +0100 X-MC-Unique: dw_JzulIP0eg1EL9EfNb8Q-1 Received: from AcuMS.Aculab.com (10.202.163.4) by AcuMS.aculab.com (10.202.163.4) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 3 Oct 2024 18:07:03 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Thu, 3 Oct 2024 18:07:03 +0100 From: David Laight To: 'Mathieu Desnoyers' , 'Alan Stern' CC: Jonas Oberhauser , Linus Torvalds , "linux-kernel@vger.kernel.org" , Greg Kroah-Hartman , Sebastian Andrzej Siewior , "Paul E. McKenney" , Will Deacon , Peter Zijlstra , Boqun Feng , John Stultz , Neeraj Upadhyay , Frederic Weisbecker , "Joel Fernandes" , Josh Triplett , Uladzislau Rezki , Steven Rostedt , Lai Jiangshan , Zqiang , Ingo Molnar , Waiman Long , "Mark Rutland" , Thomas Gleixner , Vlastimil Babka , "maged.michael@gmail.com" , Mateusz Guzik , Gary Guo , "rcu@vger.kernel.org" , "linux-mm@kvack.org" , "lkmm@lists.linux.dev" Subject: RE: [PATCH 1/2] compiler.h: Introduce ptr_eq() to preserve address dependency Thread-Topic: [PATCH 1/2] compiler.h: Introduce ptr_eq() to preserve address dependency Thread-Index: AQHbE2njI9qt6nx11kSrjhsE5O+AlrJyIkGggABQqYCAAKZugIAAWd+AgAAhswCAAXOBa4AAO0Sg Date: Thu, 3 Oct 2024 17:07:03 +0000 Message-ID: <498f11de5a024f0ca0b70aba4e28b17b@AcuMS.aculab.com> References: <02c63e79-ec8c-4d6a-9fcf-75f0e67ea242@rowland.harvard.edu> <9539c551-5c91-42db-8ac1-cff1d6d7c293@huaweicloud.com> <2cdda043-1ad9-40cf-a157-0c16a0ffb046@rowland.harvard.edu> <5d7d8a59-57f5-4125-95bb-fda9c193b9cf@huaweicloud.com> <82e97ad5-17ad-418d-8791-22297acc7af4@rowland.harvard.edu> <2b1caba3-48fa-43b9-bd44-cf60b9a141d7@rowland.harvard.edu> <22638e2fe1274eb0834fa3e43b44184e@AcuMS.aculab.com> <68dc00b3-1ca1-42bc-8f1e-78ace10e4d64@rowland.harvard.edu> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Li4uDQo+IFdoYXQgX2RvZXNfIHdvcmsgaG93ZXZlciBhcmUgdGhlIGZvbGxvd2luZyB0d28gYXBw cm9hY2hlczoNCj4gDQo+IDEpIFBlcmZvcm0gdGhlIGVxdWFsaXR5IGNoZWNrIG9uIHRoZSBvcmln aW5hbCB2YXJpYWJsZXMsIGNyZWF0aW5nDQo+IG5ldyB2ZXJzaW9ucyAod2l0aCBPUFRJTUlaRVJf SElERV9WQVIpIG9mIGJvdGggdmFyaWFibGVzIGZvciB0aGUNCj4gcmVzdCBvZiB0aGVpciB1c2Us IHRoZXJlZm9yZSBtYWtpbmcgc3VyZSB0aGUgcG9pbnRlciBkZXJlZmVyZW5jZQ0KPiBhcmUgbm90 IGRlcml2ZWQgZnJvbSB2ZXJzaW9ucyBvZiB0aGUgdmFyaWFibGVzIHdoaWNoIHdlcmUgY29tcGFy ZWQNCj4gd2l0aCBhbm90aGVyIHBvaW50ZXIuIChhcyBzdWdnZXN0ZWQgYnkgQm9xdW4pDQoNCklm IHRoYXQgaXMNCglhMSA9IGE7IE9QVElNSVNFUl9ISURFX1ZBUihhMSk7DQoJYjEgPSBiOyBPUFRJ TUlTRVJfSElERV9CQVIoYjEpOw0KCWlmIChhICE9IGJ9DQoJCXJldHVybjsNCgkvLyBjb2RlIHVz aW5nIGExIGFuZCBiMQ0KdGhlbiBjYW4ndCB0aGUgY29tcGlsZXIgZmlyc3QgZmxpcCBpdCB0bzoN CglpZiAoYSAhPSBiKQ0KCQlyZXR1cm47DQoJYTEgPSBhOyBPUFRJTUlTRVJfSElERV9WQVIoYTEp Ow0KCWIxID0gYjsgT1BUSU1JU0VSX0hJREVfVkFSKGIxKTsNCmFuZCB0aGVuIHJlcGxhY2UgdGhl IGxhc3QgbGluZSB3aXRoOg0KCWIxID0gYTsgT1BUSU1JU0VSX0hJREVfVkFSKGIxKTsNCndoaWNo IGlzbid0IGludGVuZGVkIGF0IGFsbC4NCgkJDQoJDQpPVE9IIGlmIHlvdSBkbzoNCglhMSA9IGE7 IE9QVElNSVNFUl9ISURFX1ZBUihhMSk7DQoJYjEgPSBiOyBPUFRJTUlTRVJfSElERV9WQVIoYjEp Ow0KCWlmIChhMSAhPSBiMSkNCgkJcmV0dXJuOw0KCS8vIGNvZGUgdXNpbmcgYSBhbmQgYg0KKHdo aWNoIEkgdGhpbmsgaXMpDQoNCj4gMikgUGVyZm9ybSB0aGUgZXF1YWxpdHkgY2hlY2sgb24gdGhl IHZlcnNpb25zIHJlc3VsdGluZyBvZiBoaWRpbmcNCj4gYm90aCB2YXJpYWJsZXMsIG1ha2luZyBz dXJlIHRob3NlIHZlcnNpb25zIG9mIHRoZSB2YXJpYWJsZXMgYXJlDQo+IG5vdCBkZXJlZmVyZW5j ZWQgYWZ0ZXJ3YXJkcy4gKGFzIHN1Z2dlc3RlZCBieSBMaW51cykNCg0KdGhlbiB0aGUgY29tcGls ZXIgY2FuJ3QgcG9zc2libHkgcmV2ZXJzZSB0aGUgYXNtIGJsb2Nrcy4NCg0KCURhdmlkDQoNCi0N ClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBN aWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxl cykNCg==