Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp3788196pxb; Sat, 13 Feb 2021 09:13:34 -0800 (PST) X-Google-Smtp-Source: ABdhPJz0RzMOMZdP4EdN3VCcs0ZE+U94EOWxtAbB7X2nW4/86aMM3ZcAg/txffFrx1Z5xZ7EAtBh X-Received: by 2002:a17:906:3a89:: with SMTP id y9mr8260905ejd.4.1613236414185; Sat, 13 Feb 2021 09:13:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1613236414; cv=none; d=google.com; s=arc-20160816; b=JQ7wW6g3tS0Zjl91mxrd0mdrQSejXxCyqrJJKOjOV7CyuXEackm+tIHwamGQ/a9AOK HvRhJKWZEh/BdUtamDJ9c2YRB36C9cnd84IIDxin31AOqW4jzMYnen6JGUFNf/S2gfUg 5bFjZQ1+lE7IvgBmf69EIvNOONpsWUZ9FCpk3/MSYnbjRPPOR+1vpLAYdkdedBGXQure Oupn7nGE1k/V6dUOsUQhGf8s+rpkJRJQHt74au98Ca5oh+MHvt+nQTQAByPzkUUvdFby T7SEkPrhN5ziZSxLckDAiPp3q5U5AWSMK4Rq6OS5FrCP06OzQPIJ0ssr1yteV3Q0yQFe N/nQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :dlp-version:dlp-reaction:dlp-product:content-language :accept-language:in-reply-to:references:message-id:date:thread-index :thread-topic:subject:cc:to:from:ironport-sdr:ironport-sdr; bh=BKz86EignwiQhMa8It+w59lEfHZ4/XYW8nAAtQrTG4s=; b=gy+lHlRdNA0Vo6xa+4K8xqiUqC81VyWh0pTNtvtfNemPZzOIkSyO6vBQew22zUGQOK bKpZOJ1Uo/dBK6R5G26YWLREzNjBN/wwSjX5jcXgBgYwxp+khl5s+e1dvrp9jXTdKhmx RQuWuGFf/jperMmVOOXNN7er3S/mcfwt/atiCJC+dBwuAXbnCnYcXfpLODf021SGTFBP BKyDEqi1L2EoACrLys5uoXwzRS56kTAM58YQb7JG2IFwtCefjuejb2mgllaZFl+8yR2V RBIjVXMrEcaqZ02pcxq+pUf1aQAUJAh1kRgmlsAjxJq5TwUlUgs2gRmz5570At653i6s TytA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f16si9026640edx.512.2021.02.13.09.12.57; Sat, 13 Feb 2021 09:13:34 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229714AbhBMRKI (ORCPT + 99 others); Sat, 13 Feb 2021 12:10:08 -0500 Received: from mga06.intel.com ([134.134.136.31]:20889 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229647AbhBMRKC (ORCPT ); Sat, 13 Feb 2021 12:10:02 -0500 IronPort-SDR: Gr4Pq2iBa2WqrY9rrgPLQjQIXDv/wvErNIfFny3MykeUR32DP2YNw8mn81U8sNLAZiKhu9UnNb NRacJ7VgdN7A== X-IronPort-AV: E=McAfee;i="6000,8403,9894"; a="244021468" X-IronPort-AV: E=Sophos;i="5.81,176,1610438400"; d="scan'208";a="244021468" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Feb 2021 09:09:20 -0800 IronPort-SDR: zxeaR09jXell1e+x2UGPbnP4I9gr3xdCYoPW6FrRXaGwyPYSfVZkCxoCy/x+Rmc+/M5nGiwoxx 0Lv+4396MH/w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,176,1610438400"; d="scan'208";a="437984772" Received: from fmsmsx606.amr.corp.intel.com ([10.18.126.86]) by orsmga001.jf.intel.com with ESMTP; 13 Feb 2021 09:09:20 -0800 Received: from lcsmsx602.ger.corp.intel.com (10.109.210.11) by fmsmsx606.amr.corp.intel.com (10.18.126.86) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Sat, 13 Feb 2021 09:09:19 -0800 Received: from hasmsx602.ger.corp.intel.com (10.184.107.142) by LCSMSX602.ger.corp.intel.com (10.109.210.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Sat, 13 Feb 2021 19:09:17 +0200 Received: from hasmsx602.ger.corp.intel.com ([10.184.107.142]) by HASMSX602.ger.corp.intel.com ([10.184.107.142]) with mapi id 15.01.2106.002; Sat, 13 Feb 2021 19:09:17 +0200 From: "Winkler, Tomas" To: Richard Weinberger CC: Miquel Raynal , Vignesh Raghavendra , linux-mtd , linux-kernel Subject: RE: [PATCH] mtd: use refcount to prevent corruption Thread-Topic: [PATCH] mtd: use refcount to prevent corruption Thread-Index: AQHW9OeD00Da249Jw0qJn6+VIZAeUao7z7AAgAAh5BBxoBSOfPxzntFAEGBJdu//fSiMQP//4NkAAA+XK+AnHY02HSTJqnMg Date: Sat, 13 Feb 2021 17:09:17 +0000 Message-ID: <783a45b0bc04483e9a0a6bb0a083bccb@intel.com> References: <20210127200319.662842-1-tomas.winkler@intel.com> <1776363776.325713.1611782270873.JavaMail.zimbra@nod.at> <1665542284.336646.1611820031174.JavaMail.zimbra@nod.at> <20210128100032.5eb542c6@xps13> <10c2e98c393a486cab3bc953e9926e38@intel.com> <1363048722.339069.1611865409332.JavaMail.zimbra@nod.at> In-Reply-To: <1363048722.339069.1611865409332.JavaMail.zimbra@nod.at> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [10.184.70.1] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org DQo+IA0KPiBUb21hcywNCj4gDQo+IC0tLS0tIFVyc3Byw7xuZ2xpY2hlIE1haWwgLS0tLS0NCj4g Pj4gQXMgUmljaGFyZCB3YXMgc2F5aW5nLCB3ZSBhcmUgcmVhbGx5IG9wZW4gdG8gZW5oYW5jZSBN VEQgcmVmY291bnRpbmcuDQo+ID4+DQo+ID4+IEhvd2V2ZXIsIHRoZSBpc3N1ZSB5b3UgYXJlIGZh Y2luZyBpcywgSU1ITywgbm90IHJlbGF0ZWQgdG8gTVREIGJ1dCB0bw0KPiBNRkQuDQo+ID4+IFRo ZXJlIHNob3VsZCBiZSBhIHdheSB0byBhdm9pZCBNRkQgdG8gdmFuaXNoIGJ5IHRha2luZyBhIHJl ZmVyZW5jZSBvZg0KPiA+PiBpdCB0aHJvdWdoIG10ZC0+X2dldF9kZXZpY2UoKS4gSSBkb24ndCB0 aGluayBhZGRyZXNzaW5nIHRoZSBjYXNlDQo+ID4+IHdoZXJlIE1GRCB2YW5pc2hlcyB3aGlsZSBN VEQgKGFzIGEgdXNlcikgaXMgc3RpbGwgYWN0aXZlIGlzIHRoZSByaWdodA0KPiBhcHByb2FjaC4N Cj4gPg0KPiA+IEkgdGhpbmsgaXQgd29uJ3Qgd29yayBiZWNhdXNlIE1GRCBzdWItZHJpdmVyIHJl bW92ZSgpIGlzIGNhbGxlZCAgIGFuZCBpdA0KPiBtdXN0DQo+ID4gc3VjY2VlZCBiZWNhdXNlIHRo ZSBtYWluIGRldmljZSAgaXMgbm90IGFjY2Vzc2libGUgdW5saWtlIGdsdWV1YmkNCj4gPiB3aGlj aCBqdXN0IHJldHVybnMgLUVCVVNZLg0KPiANCj4gV2VsbCwgdGhlIHRyaWNrIGluIGdsdWJpIChh bmQgb3RoZXIgTVREcyB3aXRoICJob3RwbHVnIiBzdXBwb3J0KSBpcyBub3QgdG8NCj4gcmVqZWN0 IHJlbW92YWwgb2YgdGhlIHN1Yi1kZXZpY2UuIC0+X3B1dF9kZXZpY2UoKSBpcyBvZiByZXR1cm4g dHlwZSB2b2lkLg0KPiBUaGUga2V5IGlzIGdyYWJiaW5nIGEgcmVmZXJlbmNlIG9uIHRoZSBzdWIt ZGV2aWNlIGluIC0+X2dldF9kZXZpY2UoKSBzdWNoDQo+IHRoYXQgdGhlIGxheWVyIGJlbG93IGRv ZXNuJ3QgZXZlbiB0cnkgdG8gcmVtb3ZlIHdoaWxlIHRoZSBNVEQgaXMgaW4gdXNlLg0KDQpJIHVu ZGVyc3RhbmQgdGhhdC4gQnV0IGluIHRoYXQgY2FzZSB0aGUga2VybmVsIGlzIGluIHRoZSBtZXJj eSBvZiB1c2VyIHNwYWNlIHRvIGNsb3NlIHRoZSBoYW5kbGUsICANCnRoZSB3aG9sZSBwZXJjZXB0 aW9uIGhlcmUgaXMgdGhhdCBvZiBob3RwbHVnIHRoYXQgdGhlIGRldmljZSBpcyAgcGh5c2ljYWxs eSByZW1vdmVkIGl0IGNhbm5vdCB3YWl0IA0KZm9yIHRoZSB1c2VyIHNwYWNlIHRvIGNvbXBsZXRl LiBXaGF0J3MgdGhlIGZpeCBpcyB0cnlpbmcgdG8gZG8gaXMgdG8gYmFpbCBvdXQgZ3JhY2VmdWxs eS4NCg0KPiA+IHNvIHdlIHBvc3Rwb25lIHRoZSBtdGQgdW5yZWdpc3RlciB0byAgbXRkX2luZm8t Pl9wdXRfZGV2aWNlKCkgIGJ1dCBpdA0KPiA+IHRoYXQgc3RhdGUgd2UgaGF2ZSBub3RoaW5nIHRv IGhvbGQgb24gYXMgdGhlIGRldmljZSBpcyBnb25lIGluDQo+ID4gcmVtb3ZlKCkgVXNlciB3aWxs IGZhaWwgYW55d2F5LCBhcyB0aGUgdW5kZXJseWluZyBkZXZpY2UgaXMgbm90DQo+ID4gZnVuY3Rp b25hbCBpbiB0aGF0IHN0YXRlLg0KPiA+IEFueXdheSBJJ3ZlIHRyaWVkIHlvdXIgc3VnZ2VzdGlv biwgdGhlIGtlcm5lbCBpcyBjcmFzaGluZywgaG9wZSBJDQo+ID4gaGF2ZW4ndCBkb25lIHNvbWUg c2lsbHkgYnVnLg0KPiANCj4gQ2FuIHlvdSBwb2ludCB1cyB0byB0aGUgYWZmZWN0ZWQgY29kZT8N Cj4gVGhpcyB3b3VsZCBoZWxwIGEgbG90IHRvIHVuZGVyc3RhbmQgdGhlIGlzc3VlIGJldHRlci4N Cj4gSSdtIHN1cmUgd2UgY2FuIGZpbmQgYSBzb2x1dGlvbi4NCg0KR290IGdyZWVuIGxpZ2h0IG9u IHJlbGVhc2luZyB0aGUgcGF0Y2hlcyB3aWxsIHNlbmQgc29vbi4NCg0KDQpUaGFua3MNClRvbWFz DQoNCg==