Received: by 2002:a25:7ec1:0:0:0:0:0 with SMTP id z184csp664351ybc; Tue, 12 Nov 2019 07:24:21 -0800 (PST) X-Google-Smtp-Source: APXvYqyBOmIypRVupI0pJcuozwEAZUnLKyi2ZcxXUQQ30U7MGAmZyLsmMZnv/TmoLi41PJMP/kjq X-Received: by 2002:a17:906:938c:: with SMTP id l12mr28491627ejx.135.1573572261491; Tue, 12 Nov 2019 07:24:21 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1573572261; cv=none; d=google.com; s=arc-20160816; b=ZCkF8vedgviISF05QtIO3v5RfnigYEkeC4xJIhoq3+XRvC8TYycNuSBt4ntRruVDVb exvN+/mkoZEExZxCv+7EzeIxfcuXwnWlKD9QDcqsb/wIl5ZgmMpeYJhafEeATm6CwWcE O0fy7zMoLhSrYEjCZaV9SNLI4NvRAlW0sUPIg90v0VS2/RxQuJJEjy8tZ3NY97lZeFHy OP6TR6II+U1vrNSToTGy5CyMffNnSoYZoQv0ivIcL9rFHcD8/+5VWifDBNe83Glw2Pna FVSCkmCmSFwpwH7lefKO4BJJn/2Qtxck3fbfb1GJsGn+wjQNEQk3vCP6epEBAonggvPR EawA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:date:subject:cc:to:from:dkim-signature :message-id; bh=00tgKT8PrLUAKPdNow52sT3g7JzrzlOSLvjva9U8+i4=; b=HYcf6syrzrCNJyl8Do1oilXWbVQowWn5pt7IInJ1geC7hzP6OJusCLDHGH7a8jGcFE WSZ2IGsEuixbDTmcP+zgf6G91XsWJwWHkI7sky/jFFRowVmWpR8VH1UlyxFSHjiYJU9s 8QgDUcmwRIX0GK/t85HlMLxRa+zNCbQYvUgC/8v8roLXoeCB4735ndynxcHRrV3y5ZNe qKiewhtgkQq3yRxjfonF7Xr6khhV5kgg0stcleibKtTpW8x075pkMTLNQREUrdwi7hvC 7JMjFaYL8sdso4NMJtAIJzdieO4L+kkzRQmrqCvgNVBE82oq0SiJtR+CoZ7QWVhGCgWb nKGQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=aNg9ioEj; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z16si15582779edi.241.2019.11.12.07.23.56; Tue, 12 Nov 2019 07:24:21 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@mediatek.com header.s=dk header.b=aNg9ioEj; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mediatek.com Message-ID: <5dcacea5.1c69fb81.bccc7.b33eSMTPIN_ADDED_BROKEN@mx.google.com> X-Google-Original-Message-ID: (raw) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727022AbfKLPVB (ORCPT + 99 others); Tue, 12 Nov 2019 10:21:01 -0500 Received: from mailgw01.mediatek.com ([210.61.82.183]:6282 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726952AbfKLPVA (ORCPT ); Tue, 12 Nov 2019 10:21:00 -0500 X-UUID: 52aaeee72103438fbe753863ec8e7517-20191112 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=00tgKT8PrLUAKPdNow52sT3g7JzrzlOSLvjva9U8+i4=; b=aNg9ioEjCTD/UuYmx8I4EXhlGq50s4f+4LuI+vC5bWHhtG48cfYoCBtno9Ajr0h99ttHRs+Quo6opAPXAJzhd5W/64euQwWYXsntYJvEa7I32kjrnZKFUoS8NXK1PzF3Bb2k9UdKHI1T+o/YMZpffUdob4Zihe7ll5WTNcQwzjU=; X-UUID: 52aaeee72103438fbe753863ec8e7517-20191112 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 363594618; Tue, 12 Nov 2019 23:20:54 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 12 Nov 2019 23:20:52 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Tue, 12 Nov 2019 23:20:51 +0800 From: Mark-PK Tsai To: CC: , , , , , , , , , , , , , , , , Subject: Re: [PATCH] ARM: fix race in for_each_frame Date: Tue, 12 Nov 2019 23:20:51 +0800 X-Mailer: git-send-email 2.18.0 In-Reply-To: <20191112132937.19335-1-mark-pk.tsai@mediatek.com> References: MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: 9C74EC90DFF44018F894B585C421D81AFE7E4C3710BA51A8D0AC3CF6940C760F2000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQo+IC4gMjAxOS4xMS4xMi4uMjE6MzEuTWFyay1QSyBUc2FpIDxtYXJrLXBrLnRzYWlAbWVkaWF0 ZWsuY29tPiAuLi4NCj4gDQo+IFRoZSBzdl9wYywgd2hpY2ggaXMgc2F2ZWQgaW4gdGhlIHN0YWNr LCBtYXkgYmUgYW4gaW52YWxpZCBhZGRyZXNzDQo+IGlmIHRoZSB0YXJnZXQgdGhyZWFkIGlzIHJ1 bm5pbmcgb24gYW5vdGhlciBwcm9jZXNzb3IgaW4gdGhlIG1lYW50aW1lLg0KPiBJdCB3aWxsIGNh dXNlIGtlcm5lbCBjcmFzaCBhdCBgbGRyIHIyLCBbc3ZfcGMsICMtNF1gLg0KPiANCj4gQ2hlY2sg aWYgc3ZfcGMgaXMgdmFsaWQgYmVmb3JlIHVzZSBpdCBsaWtlIHVud2luZF9mcmFtZSBpbg0KPiBh cmNoL2FybS9rZXJuZWwvdW53aW5kLmMuDQo+IA0KPiBTaWduZWQtb2ZmLWJ5OiBNaWtlLVNMIExp biA8bWlrZS1zbC5saW5AbWVkaWF0ZWsuY29tPg0KPiBTaWduZWQtb2ZmLWJ5OiBNYXJrLVBLIFRz YWkgPG1hcmstcGsudHNhaUBtZWRpYXRlay5jb20+DQo+IC0tLQ0KPiBhcmNoL2FybS9saWIvYmFj a3RyYWNlLlMgfCA1ICsrKysrDQo+IDEgZmlsZSBjaGFuZ2VkLCA1IGluc2VydGlvbnMoKykNCj4g DQo+IGRpZmYgLS1naXQgYS9hcmNoL2FybS9saWIvYmFja3RyYWNlLlMgYi9hcmNoL2FybS9saWIv YmFja3RyYWNlLlMNCj4gaW5kZXggNTgyOTI1MjM4ZDY1Li44NGYwNjM4MWJiZmIgMTAwNjQ0DQo+ IC0tLSBhL2FyY2gvYXJtL2xpYi9iYWNrdHJhY2UuUw0KPiArKysgYi9hcmNoL2FybS9saWIvYmFj a3RyYWNlLlMNCj4gQEAgLTY0LDYgKzY0LDExIEBAIGZvcl9lYWNoX2ZyYW1lOiAgICB0c3QgICAg ZnJhbWUsIG1hc2sgICAgICAgIEAgQ2hlY2sgZm9yIGFkZHJlc3MgZXhjZXB0aW9ucw0KPiAgICAg ICAgc3ViICAgIHN2X3BjLCBzdl9wYywgb2Zmc2V0ICAgIEAgQ29ycmVjdCBQQyBmb3IgcHJlZmV0 Y2hpbmcNCj4gICAgICAgIGJpYyAgICBzdl9wYywgc3ZfcGMsIG1hc2sgICAgQCBtYXNrIFBDL0xS IGZvciB0aGUgbW9kZQ0KPiANCj4gKyAgICAgICAgbW92ICAgIHIwLCBzdl9wYw0KPiArICAgICAg ICBibCAgICBrZXJuZWxfdGV4dF9hZGRyZXNzICAgIEAgY2hlY2sgaWYgc3ZfcGMgaXMgdmFsaWQN Cj4gKyAgICAgICAgY21wICAgIHIwLCAjMCAgICAgICAgICAgIEAgaWYgc3ZfcGMgaXMgbm90IGtl cm5lbCB0ZXh0DQo+ICsgICAgICAgIGJlcSAgICAxMDA2ZiAgICAgICAgICAgIEAgYWRkcmVzcywg YWJvcnQgYmFja3RyYWNlDQo+ICsNCg0KVGhlIHN2X3BjIGNhbiBiZSBhIGtlcm5lbCBtb2R1bGUg dGV4dC4gDQoNClRoZSBtb2R1bGUgdGV4dCBhcmVhIGlzIG9rIGZvciBrZXJuZWxfdGV4dF9hZGRy ZXNzKCkuDQoNCj4gMTAwMzogICAgICAgIGxkciAgICByMiwgW3N2X3BjLCAjLTRdICAgIEAgaWYg c3RtZmQgc3AhLCB7YXJnc30gZXhpc3RzLA0KPiAgICAgICAgbGRyICAgIHIzLCAuTGRzaSs0ICAg ICAgICBAIGFkanVzdCBzYXZlZCAncGMnIGJhY2sgb25lDQo+ICAgICAgICB0ZXEgICAgcjMsIHIy LCBsc3IgIzExICAgICAgICBAIGluc3RydWN0aW9uDQo+IC0tIA0KPiAyLjE4LjA=