From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8BA0CC3A5A9 for ; Tue, 5 May 2020 01:52:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 709F2206C0 for ; Tue, 5 May 2020 01:52:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726516AbgEEBwF (ORCPT ); Mon, 4 May 2020 21:52:05 -0400 Received: from twspam01.aspeedtech.com ([211.20.114.71]:36395 "EHLO twspam01.aspeedtech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726482AbgEEBwF (ORCPT ); Mon, 4 May 2020 21:52:05 -0400 Received: from mail.aspeedtech.com (twmbx02.aspeed.com [192.168.0.24]) by twspam01.aspeedtech.com with ESMTP id 0451fnFT030573; Tue, 5 May 2020 09:41:49 +0800 (GMT-8) (envelope-from ryan_chen@aspeedtech.com) Received: from TWMBX01.aspeed.com (192.168.0.23) by TWMBX02.aspeed.com (192.168.0.24) with Microsoft SMTP Server (TLS) id 15.0.620.29; Tue, 5 May 2020 09:52:04 +0800 Received: from TWMBX02.aspeed.com (192.168.0.24) by TWMBX01.aspeed.com (192.168.0.23) with Microsoft SMTP Server (TLS) id 15.0.620.29; Tue, 5 May 2020 09:52:02 +0800 Received: from TWMBX02.aspeed.com ([fe80::997d:c0a7:f01f:e1a7]) by TWMBX02.aspeed.com ([fe80::997d:c0a7:f01f:e1a7%12]) with mapi id 15.00.0620.020; Tue, 5 May 2020 09:52:02 +0800 From: Ryan Chen To: Benjamin Herrenschmidt , Wolfram Sang CC: Brendan Higgins , Joel Stanley , Andrew Jeffery , "linux-i2c@vger.kernel.org" , "openbmc@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" , "linux-aspeed@lists.ozlabs.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCH v0 linux master] i2c/busses: Avoid i2c interrupt status clear race condition. Thread-Topic: [PATCH v0 linux master] i2c/busses: Avoid i2c interrupt status clear race condition. Thread-Index: AQHWHdeQ1mqTBOPAdE+n+yVhmYVsFKiPNOCAgACLErD//4h6gIABsZgAgAfJrwA= Date: Tue, 5 May 2020 01:52:01 +0000 Message-ID: References: <20200429033737.2781-1-ryan_chen@aspeedtech.com> <20200429075357.GA1957@kunai> <56add9c6e6b5410986325a1360466e4b@TWMBX02.aspeed.com> <20200429090355.GA2891@kunai> <232b9fac588beb4d024ab496b118c51af2b0ecba.camel@kernel.crashing.org> In-Reply-To: <232b9fac588beb4d024ab496b118c51af2b0ecba.camel@kernel.crashing.org> Accept-Language: zh-TW, en-US Content-Language: zh-TW X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [192.168.2.87] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-DNSRBL: X-MAIL: twspam01.aspeedtech.com 0451fnFT030573 Sender: linux-i2c-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org PiA+IEFuZCBpcyB0aGVyZSBtYXliZSBhIEZpeGVzOiB0YWcgZm9yIGl0Pw0KPiA+IFtSeWFuIENo ZW5dIFllcyBpdCBpcyBhIGZpeCBwYXRjaC4NCj4gDQo+IEkgbWVhbnQgdGhpcyAoZnJvbSBzdWJt aXR0aW5nLXBhdGNoZXMucnN0KToNCg0KPkl0IGZpeGVzIHRoZSBvcmlnaW5hbCBpbXBsZW1lbnRh dGlvbiBvZiB0aGUgZHJpdmVyIGJhc2ljYWxseS4gSXQncyBqdXN0IGEgY2xhc3NpYyBwb3N0ZWQt d3JpdGUgZml4LiBUaGUgd3JpdGUgdG8gY2xlYXIgdGhlIHBlbmRpbmcgaW50ZXJydXB0IGlzIGFz eW5jaHJvbm91cywgc28geW91IGNhbiBnZXQgc3B1cnJpb3VzIG9uZXMgaWYgeW91IHJldHVybiBm cm9tIHRoZSBoYW5kbGVyIGJlZm9yZSBpdCBoYXMgcGVyY29sYXRlZCB0byB0aGUgSFcuDQoNCj5J IGFzc3VtZSBpdCdzIGp1c3QgbW9yZSB2aXNpYmxlIG9uIHRoZSAyNjAwIGJlY2F1c2Ugb2YgdGhl IGNvcmVzIGFyZSBzaWduaWZpY2FudGx5IGZhc3RlciBidXQgdGhlIElPIGJ1cyBpcyBzdGlsbCBh cyBkdW1iLg0KDQo+UnlhbjogWW91IGNvdWxkIGFsd2F5cyBhZGQgYSBGaXhlZC1ieTogdGFnIHRo YXQgc3BlY2lmaWVzIHRoZSBjb21taXQgdGhhdCBhZGRlZCB0aGUgaW5pdGlhbCBkcml2ZXIuLi4N CltSeWFuIENoZW5dIFRoYW5rcyBCZW4uDQoNCg==