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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97F1AC433F5 for ; Mon, 28 Mar 2022 03:02:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237735AbiC1DDr (ORCPT ); Sun, 27 Mar 2022 23:03:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233861AbiC1DDp (ORCPT ); Sun, 27 Mar 2022 23:03:45 -0400 Received: from mail.meizu.com (unknown [14.29.68.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 859C0DEB0 for ; Sun, 27 Mar 2022 20:02:04 -0700 (PDT) Received: from IT-EXMB-1-126.meizu.com (172.16.1.126) by mz-mail04.meizu.com (172.16.1.16) with Microsoft SMTP Server (TLS) id 14.3.487.0; Mon, 28 Mar 2022 11:02:03 +0800 Received: from IT-EXMB-1-125.meizu.com (172.16.1.125) by IT-EXMB-1-126.meizu.com (172.16.1.126) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.8; Mon, 28 Mar 2022 11:02:02 +0800 Received: from IT-EXMB-1-125.meizu.com ([fe80::7481:7d92:3801:4575]) by IT-EXMB-1-125.meizu.com ([fe80::7481:7d92:3801:4575%3]) with mapi id 15.01.2308.014; Mon, 28 Mar 2022 11:02:02 +0800 From: =?gb2312?B?sNe6xs7E?= To: Dave Hansen , "dave.hansen@linux.intel.com" , "luto@kernel.org" , "peterz@infradead.org" CC: "linux-kernel@vger.kernel.org" Subject: =?gb2312?B?tPC4tDogW1BBVENIXSB4ODYvbW06IERpcmVjdGx5IHJldHVybiBpbnN0ZWFk?= =?gb2312?Q?_of_using_local_ret_variable?= Thread-Topic: [PATCH] x86/mm: Directly return instead of using local ret variable Thread-Index: AQHYQklWC0wgfekFQ0emsDzmtoY3X6zTkiiAgACJiOM= Date: Mon, 28 Mar 2022 03:02:02 +0000 Message-ID: References: <1648433573-25735-1-git-send-email-baihaowen@meizu.com>,<347c75b8-3a48-0758-892a-0d0ac139f740@intel.com> In-Reply-To: <347c75b8-3a48-0758-892a-0d0ac139f740@intel.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.137.70] Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org VGhhbmsgeW91IGZvciBwb2ludGluZyBteSBtaXN0YWtlbi4NCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18NCreivP7IyzogRGF2ZSBIYW5zZW4gPGRhdmUuaGFuc2VuQGlu dGVsLmNvbT4NCreiy83KsbzkOiAyMDIyxOoz1MIyOMjVIDEwOjQ5OjE5DQrK1bz+yMs6ILDXusbO xDsgZGF2ZS5oYW5zZW5AbGludXguaW50ZWwuY29tOyBsdXRvQGtlcm5lbC5vcmc7IHBldGVyekBp bmZyYWRlYWQub3JnDQqzrcvNOiBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnDQrW98ziOiBS ZTogW1BBVENIXSB4ODYvbW06IERpcmVjdGx5IHJldHVybiBpbnN0ZWFkIG9mIHVzaW5nIGxvY2Fs IHJldCB2YXJpYWJsZQ0KDQpPbiAzLzI3LzIyIDE5OjEyLCBIYW93ZW4gQmFpIHdyb3RlOg0KPg0K PiBkaWZmIC0tZ2l0IGEvYXJjaC94ODYvbW0vcGZfaW4uYyBiL2FyY2gveDg2L21tL3BmX2luLmMN Cj4gaW5kZXggM2Y4M2UzMS4uNGVmZjNlZSAxMDA2NDQNCj4gLS0tIGEvYXJjaC94ODYvbW0vcGZf aW4uYw0KPiArKysgYi9hcmNoL3g4Ni9tbS9wZl9pbi5jDQo+IEBAIC0xMzAsNyArMTMwLDYgQEAg ZW51bSByZWFzb25fdHlwZSBnZXRfaW5zX3R5cGUodW5zaWduZWQgbG9uZyBpbnNfYWRkcikNCj4g ICAgICAgdW5zaWduZWQgY2hhciAqcDsNCj4gICAgICAgc3RydWN0IHByZWZpeF9iaXRzIHByZjsN Cj4gICAgICAgaW50IGk7DQo+IC0gICAgIGVudW0gcmVhc29uX3R5cGUgcnYgPSBPVEhFUlM7DQo+ DQo+ICAgICAgIHAgPSAodW5zaWduZWQgY2hhciAqKWluc19hZGRyOw0KPiAgICAgICBwICs9IHNr aXBfcHJlZml4KHAsICZwcmYpOw0KPiBAQCAtMTQxLDcgKzE0MCw3IEBAIGVudW0gcmVhc29uX3R5 cGUgZ2V0X2luc190eXBlKHVuc2lnbmVkIGxvbmcgaW5zX2FkZHIpDQo+ICAgICAgIENIRUNLX09Q X1RZUEUob3Bjb2RlLCBpbW1fd29wLCBJTU1fV1JJVEUpOw0KPg0KPiAgZXhpdDoNCj4gLSAgICAg cmV0dXJuIHJ2Ow0KPiArICAgICByZXR1cm4gT1RIRVJTOw0KPiAgfQ0KPiAgI3VuZGVmIENIRUNL X09QX1RZUEUNCj4NCg0KRG9lcyB0aGlzIGV2ZW4gY29tcGlsZT8gIFRha2UgYSBsb29rIGF0IHRo aXMgbWFjcm86DQoNCj4gI2RlZmluZSBDSEVDS19PUF9UWVBFKG9wY29kZSwgYXJyYXksIHR5cGUp IFwNCj4gICAgICAgICBmb3IgKGkgPSAwOyBpIDwgQVJSQVlfU0laRShhcnJheSk7IGkrKykgeyBc DQo+ICAgICAgICAgICAgICAgICBpZiAoYXJyYXlbaV0gPT0gb3Bjb2RlKSB7IFwNCj4gICAgICAg ICAgICAgICAgICAgICAgICAgcnYgPSB0eXBlOyBcDQo+ICAgICAgICAgICAgICAgICAgICAgICAg IGdvdG8gZXhpdDsgXA0KPiAgICAgICAgICAgICAgICAgfSBcDQoNCkl0IHVzZXMgJ3J2Jy4NCg0K