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=-2.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_2 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 E9030C33CB1 for ; Wed, 15 Jan 2020 07:58:30 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BD17B24679 for ; Wed, 15 Jan 2020 07:58:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qnHn5sIy" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BD17B24679 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OnWJPOOQvQ5QIpnWMNZBcVLTohRSqlCE7CE5F1l7HpQ=; b=qnHn5sIyP74RR7 wzBSHEh10jPvUafd5QGunNag/a3svvSUF2fzpWdgqo3GHepUUQ2SK6f9/VUyb7HMw2gtPFc/SV3CG A7sG73l7/qhcITOrcMiQk7QonglwoOTyIJrIVE/1W4BQSDrF+D98n/mUJXyE4uX5c6tLk+vqAJosp k9Z+l3AjGJ8Yh/shgATTz8lGfl/tN3ihIXqc5it9VMrxWfWtNL7EQdWrdKp9ZvKyRPdOcy0N7HeDE UPQ0jZyU8aKYnHqHGRe+xrfUOpFOrDGk7L2xE9ENJjElEjR2f0GE3/h4UN/jycvXt6b8gg4ZTX2AY n7avXbPaHLn+8F4vNiFQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1irdZE-0007rM-0p; Wed, 15 Jan 2020 07:58:20 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1irdZ7-0007bo-9S for linux-mtd@lists.infradead.org; Wed, 15 Jan 2020 07:58:17 +0000 Received: from localhost (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 992E0293209; Wed, 15 Jan 2020 07:58:09 +0000 (GMT) Date: Wed, 15 Jan 2020 08:58:06 +0100 From: Boris Brezillon To: "Wojtaszczyk, Piotr" Subject: Re: [RFC PATCH 0/3] Fix proposal for the Micron shallow erase issue Message-ID: <20200115085806.218b6b32@collabora.com> In-Reply-To: <8fac8e86-3455-271d-2fcb-c2a6070e8127@cumminsallison.com> References: <20191231192656.16376-1-miquel.raynal@bootlin.com> <20200114101219.4b951dfe@xps13> <8fac8e86-3455-271d-2fcb-c2a6070e8127@cumminsallison.com> Organization: Collabora X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-redhat-linux-gnu) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200114_235813_607499_50BC93B4 X-CRM114-Status: GOOD ( 18.68 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Florian Fainelli , Vignesh Raghavendra , Tudor Ambarus , Richard Weinberger , Zoltan Szubbocsev , "linux-mtd@lists.infradead.org" , Thomas Petazzoni , Miquel Raynal , "tglx@linutronix.de" , Bean Huo Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org T24gVHVlLCAxNCBKYW4gMjAyMCAyMDo0NjoxNyArMDAwMAoiV29qdGFzemN6eWssIFBpb3RyIiA8 V29qdGFzemN6eWtQQGN1bW1pbnNhbGxpc29uLmNvbT4gd3JvdGU6Cgo+IE9uIDEvMTQvMjAgMzox MiBBTSwgTWlxdWVsIFJheW5hbCB3cm90ZToKPiA+IENyYXAuIEknbGwgbm90IHJlc2VuZCBpbW1l ZGlhdGVseSBhcyB0aGlzIGlzIGFuIFJGQywgSSBleHBlY3QKPiA+IGZlZWRiYWNrIG9uIHRoaXMg cHJvcG9zYWwgYmVmb3JlIHNlbmRpbmcgYW4gYWN0dWFsIHBhdGNoLgo+ID4gCj4gPiAKPiA+IFRo YW5rcywKPiA+IE1pcXXDqGwKPiA+ICAgCj4gCj4gSGkgTWlxdcOobCwgaGVyZSBhcmUgc29tZSBt eSBjb21tZW50czoKPiAKPiArc3RhdGljIGludCBtaWNyb25fbmFuZF9hdm9pZF9zaGFsbG93X2Vy YXNlKHN0cnVjdCBuYW5kX2NoaXAgKmNoaXAsCj4gKwkJCQkJICAgdW5zaWduZWQgaW50IGViKQo+ ICt7Cj4gKwlzdHJ1Y3QgbWljcm9uX25hbmQgKm1pY3JvbiA9IG5hbmRfZ2V0X21hbnVmYWN0dXJl cl9kYXRhKGNoaXApOwo+ICsJdW5zaWduZWQgaW50IHBhZ2UgPSBlYiAqIG5hbmRkZXZfcGFnZXNf cGVyX2VyYXNlYmxvY2soJmNoaXAtPmJhc2UpOwo+ICsJdTggKmRhdGFidWYgPSBuYW5kX2dldF9k YXRhX2J1ZihjaGlwKTsKPiArCWludCByZXQsIGk7Cj4gKwo+ICsJbWVtc2V0KGRhdGFidWYsIDB4 RkYsIG5hbmRkZXZfcGFnZV9zaXplKCZjaGlwLT5iYXNlKSk7Cj4gKwo+ICsJLyogTWljcm9uIGFk dmlzZXMgdG8gb25seSB3cml0ZSBvZGQgcGFnZXMgKi8KPiArCWZvciAoaSA9IDA7IGkgPCBNSUNS T05fU0hBTExPV19FUkFTRV9NSU5fUEFHRTsgaSArPSAyLCBwYWdlICs9IDIpIHsKPiArCQlpZiAo IShtaWNyb24tPndyaXR0ZW5wW2ViXSAmIEJJVChpKSkpIHsKPiArCQkJcmV0ID0gbmFuZF93cml0 ZV9wYWdlX3JhdyhjaGlwLCBkYXRhYnVmLCBmYWxzZSwgcGFnZSk7Cj4gKwkJCWlmIChyZXQpCj4g KwkJCQlyZXR1cm4gcmV0Owo+ICsJCX0KPiArCX0KPiArCj4gKwlyZXR1cm4gMDsKPiArfQo+IAo+ IFNob3VsZG4ndCB3ZSBwcm9ncmFtIG9ubHkgdGhlIE9PQiBhcmVhIG9mIHRoZSBwYWdlcyB0byAw J2VzPyBQcm9ncmFtbWluZyBwYWdlcyB0byAweEZGIAo+IHdoaWNoIGFyZSBhbHJlYWR5IDB4RkYg dGFrZXMgbW9yZSB0aW1lIGFuZCBkb2Vzbid0IG1ha2UgYW55IGRpZmZlcmVuY2UuCgpIbSwgSSdt IHByZXR0eSBzdXJlIHdlIHNob3VsZCBzZXQgaW4tYmFuZCBkYXRhIHRvIDAsIG5vdCAweGZmLgpQ cm9ncmFtbWluZyBvbmx5IHRoZSBPT0IgcG9ydGlvbiBtaWdodCBub3QgYmUgZW5vdWdoIGZvciB0 aGUgaW50ZXJuYWwKImlzIHBhZ2Ugd3JpdHRlbj8iIGxvZ2ljIHRvIHJldHVybiB0cnVlLgoKPiAK PiBBbHNvIGFmdGVyIHBvd2VyIGxvc3MgYWxsIGZsYWdzIGluIG1pY3Jvbi0+d3JpdHRlbnAgYXJl IGdvbmUgc28gdGhlIAo+IG1pY3Jvbl9uYW5kX2F2b2lkX3NoYWxsb3dfZXJhc2Ugd2lsbCBwZXJm b3JtIG9uIGFsbCBQRUJzIGNhdXNpbmcgcGVyZm9ybWFuY2UgbG9zcy4KClllcywgdGhhdCdzIGEg cGVyZm9ybWFuY2UgaGl0IHdlJ2xsIGhhdmUgdG8gYWNjZXB0IGZvciBub3cuCgo+IAo+IEluc3Rl YWQgd2UgY291bGQgY2hlY2sgYSBmbGFnIGluIE9PQiBhcmVhIG9mIGZpcnN0IHBhZ2Ugb2YgdGhl IFBFQiB3ZSBhcmUgYWJvdXQgdG8gZXJhc2UgCj4gYW5kIGNsZWFyIHRoZSBmbGFnIGJpdC9iaXRz IHdoZW4gMTZ0aCBwYWdlIG9mIHRoZSBQRUIgZ2V0cyBwcm9ncmFtbWVkLiBTaW1taWxhciB0byBi YWQgCj4gYmxvY2sgbWFyay4KCldlbGwsIHRoYXQgZG9lc24ndCB3b3JrIHdlbGwgYmVjYXVzZToK CjEvIHByb2dyYW1taW5nIGEgcGFnZSB0aGF0IGhhcyBhbHJlYWR5IGJlIHByb2dyYW1tZWQgaXMg bm90IGFsd2F5cwogICBhbGxvd2VkICh5b3UgbXVzdCBoYXZlIHN1Yi1wYWdlIHdyaXRlIHN1cHBv cnQgYW5kIHRoZSBwYWdlIG11c3QgaGF2ZQogICBiZWVuIHByb2dyYW1tZWQgbGVzcyB0aGFuIHRo ZSBudW1iZXIgb2Ygc3VicGFnZSB3cml0ZXMpCjIvIGNvbnRyb2xsZXIgc2lkZSBFQ0NzIGFyZSBp biB0aGUgd2F5LCBhbmQgd2UgZG9uJ3QgaGF2ZSBhIHByb3BlcgogICBzb2x1dGlvbiB0byBkZXNj cmliZSB1bnByb3RlY3RlZCBPT0IgcmVnaW9ucy4gRXZlbiBpZiB3ZSBoYWQKICAgdGhhdCBpbiBw bGFjZSwgdGhlcmUgbWlnaHQgbm90IGV2ZW4gYmUgc3VjaCB1bnByb3RlY3RlZCBPT0IgbGVmdAog ICAoc29tZSBjb250cm9sbGVycyBwcm90ZWN0L3VzZSB0aGUgd2hvbGUgT09CIGFyZWEpCgpOb3Rl IHRoYXQgdGhlIHdyaXRlcyB3ZSBkbyBpbiBtaWNyb25fbmFuZF9hdm9pZF9zaGFsbG93X2VyYXNl KCkgd2lsbApjb3JydXB0IGRhdGEgcHJlc2VudCBpbiB0aG9zZSBwYWdlcywgYnV0IHRoYXQgc2hv dWxkbid0IGJlIGEgcHJvYmxlbSwKYmVjYXVzZSB3ZSB3YW50IHRvIGVyYXNlIHRoZW0gYW55d2F5 LgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkxpbnV4IE1URCBkaXNjdXNzaW9uIG1haWxpbmcgbGlzdApodHRwOi8vbGlzdHMuaW5mcmFkZWFk Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LW10ZC8K