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=-4.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 DEED6C64E7A for ; Tue, 1 Dec 2020 21:19:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 665F42076C for ; Tue, 1 Dec 2020 21:19:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729910AbgLAVTg (ORCPT ); Tue, 1 Dec 2020 16:19:36 -0500 Received: from mail-ej1-f66.google.com ([209.85.218.66]:45945 "EHLO mail-ej1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729883AbgLAVTf (ORCPT ); Tue, 1 Dec 2020 16:19:35 -0500 Received: by mail-ej1-f66.google.com with SMTP id qw4so7277470ejb.12; Tue, 01 Dec 2020 13:19:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=jryqI5sQqWi4PXznClcMpjDSZfGYWOSS95XBGrU9xYM=; b=GkhvCORVvg1kt+1N8y3nenDNiyBtA5+59dHp9uQqPpLMnY8Xld+GUV2p93cPPy7cuk /NKYKy/yK+iMWN7SU5Pl1IQAo38eviLMQIWXTP1HxbZI3LKFJ4VR9OwYkPdhpxm1SWOn XHh4ZQLffJiLtbMXa1rxxUpNT6nklJEP29kiJOvSQbSVip+eDe9uBagIDxtwZQZ0KcHA 3MuPcGePNTzyBgMPm5RnpOr6PoJXJm9aDTUZOjRt5DXhiUnwabMN65q7XlmGOLcw6w/2 hBAg/ic6XwhiaBmrPAEWGGVFxA6P2Q9/60CCPazGFLAymLJVvXXPJ4XzH66Takwc6mFU YKPA== X-Gm-Message-State: AOAM53249uaSjuQdkhcIj/EWk83n7xNCxL01ylhu1EFY5DA92SIzc2Et SeXfGIlGwUimfkb9k15+wOQ= X-Google-Smtp-Source: ABdhPJwVCwY+a1v0Hv+LTfv/oplZ+OnT3nmymHRP5j+/8a+SofJfABEbDHeJGwHTKrcOyfGOWnoRIA== X-Received: by 2002:a17:906:2e16:: with SMTP id n22mr5070528eji.477.1606857532633; Tue, 01 Dec 2020 13:18:52 -0800 (PST) Received: from kozik-lap (adsl-84-226-167-205.adslplus.ch. [84.226.167.205]) by smtp.googlemail.com with ESMTPSA id d14sm484594edu.63.2020.12.01.13.18.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Dec 2020 13:18:51 -0800 (PST) Date: Tue, 1 Dec 2020 23:18:49 +0200 From: Krzysztof Kozlowski To: Arnd Bergmann Cc: Alexandre Belloni , Catalin Marinas , ZHIZHIKIN Andrey , "linux@armlinux.org.uk" , "nicolas.ferre@microchip.com" , "ludovic.desroches@microchip.com" , "tony@atomide.com" , "mripard@kernel.org" , "wens@csie.org" , "jernej.skrabec@siol.net" , "thierry.reding@gmail.com" , "jonathanh@nvidia.com" , "will@kernel.org" , "tsbogend@alpha.franken.de" , "James.Bottomley@HansenPartnership.com" , "deller@gmx.de" , "mpe@ellerman.id.au" , "benh@kernel.crashing.org" , "paulus@samba.org" , "lee.jones@linaro.org" , "sam@ravnborg.org" , "emil.l.velikov@gmail.com" , "daniel.thompson@linaro.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-omap@vger.kernel.org" , "linux-tegra@vger.kernel.org" , "linux-mips@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , Arnd Bergmann , Olof Johansson , arm-soc Subject: Re: [PATCH 1/5] ARM: configs: drop unused BACKLIGHT_GENERIC option Message-ID: <20201201211849.GA23379@kozik-lap> References: <20201130152137.24909-1-andrey.zhizhikin@leica-geosystems.com> <20201130152137.24909-2-andrey.zhizhikin@leica-geosystems.com> <20201130185227.GA29434@kozik-lap> <20201201144052.GE31404@gaia> <20201201154139.GF2401593@piout.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org On Tue, Dec 01, 2020 at 04:50:22PM +0100, Arnd Bergmann wrote: > On Tue, Dec 1, 2020 at 4:41 PM Alexandre Belloni > wrote: > > On 01/12/2020 14:40:53+0000, Catalin Marinas wrote: > > > On Mon, Nov 30, 2020 at 07:50:25PM +0000, ZHIZHIKIN Andrey wrote: > > > > From Krzysztof Kozlowski : > > > > I tried to convince them before, it didn't work. I guess they don't like > > > to be spammed ;). > > > > The first rule of arm-soc is: you do not talk about arm@ and soc@ > > I don't mind having the addresses documented better, but it needs to > be done in a way that avoids having any patch for arch/arm*/boot/dts > and arch/arm/*/configs Cc:d to soc@kernel.org. > > If anyone has suggestions for how to do that, let me know. Not a perfect solution but something. How about: https://lore.kernel.org/linux-arm-kernel/20201201211516.24921-2-krzk@kernel.org/T/#u Would not work on defconfigs but there is a chance someone will find your addresses this way. Should not cause to much additional traffic. Best regards, Krzysztof 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=-4.0 required=3.0 tests=BAYES_00,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 7A73AC64E7B for ; Tue, 1 Dec 2020 21:20:50 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 7F7A220705 for ; Tue, 1 Dec 2020 21:20:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7F7A220705 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4Clw4b4qGvzDqWG for ; Wed, 2 Dec 2020 08:20:47 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=209.85.218.65; helo=mail-ej1-f65.google.com; envelope-from=k.kozlowski.k@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=fail (p=none dis=none) header.from=kernel.org Received: from mail-ej1-f65.google.com (mail-ej1-f65.google.com [209.85.218.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Clw2S5yCfzDqTw for ; Wed, 2 Dec 2020 08:18:56 +1100 (AEDT) Received: by mail-ej1-f65.google.com with SMTP id jx16so7298562ejb.10 for ; Tue, 01 Dec 2020 13:18:56 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=jryqI5sQqWi4PXznClcMpjDSZfGYWOSS95XBGrU9xYM=; b=sfmttgXBVfsEOn8+uEcT+suMpexym8VOMqcAaUNYvcsRkBg+JlucKECvbPtoy18ik4 AMHmn2pwhTIQ28dy/qHB1Az/5I8QolhHbsHHE4603O4f71Shj1MNSIKtsaZYf5ZcmbAF eKJX5/KN7RAExPeeWMCE70/6Y8QyKY3+hpwNsFmIp5+Gja1wiioPefNVJb6x/MzOpO/I jx1+D7rX2O55YfNTEvsQbIgTZ8mWIL8V4jYHO/EUXeJzKgwnmzxKB3jRqymqp1Lqdm7j iU/3RFeDoP7NjuUpnhjrqlUEn89HbTxU9H6YXYdeZpDWIwyY5Ryp8TjOkLCgWcOIMxBm Xprw== X-Gm-Message-State: AOAM531okF49qLyCs56C5l9OCrrb85fDnQRs3CjVf4OhVjUuKa3oiwok 8NODSJ5NAcbO5Zto5cTrrK0= X-Google-Smtp-Source: ABdhPJwVCwY+a1v0Hv+LTfv/oplZ+OnT3nmymHRP5j+/8a+SofJfABEbDHeJGwHTKrcOyfGOWnoRIA== X-Received: by 2002:a17:906:2e16:: with SMTP id n22mr5070528eji.477.1606857532633; Tue, 01 Dec 2020 13:18:52 -0800 (PST) Received: from kozik-lap (adsl-84-226-167-205.adslplus.ch. [84.226.167.205]) by smtp.googlemail.com with ESMTPSA id d14sm484594edu.63.2020.12.01.13.18.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Dec 2020 13:18:51 -0800 (PST) Date: Tue, 1 Dec 2020 23:18:49 +0200 From: Krzysztof Kozlowski To: Arnd Bergmann Subject: Re: [PATCH 1/5] ARM: configs: drop unused BACKLIGHT_GENERIC option Message-ID: <20201201211849.GA23379@kozik-lap> References: <20201130152137.24909-1-andrey.zhizhikin@leica-geosystems.com> <20201130152137.24909-2-andrey.zhizhikin@leica-geosystems.com> <20201130185227.GA29434@kozik-lap> <20201201144052.GE31404@gaia> <20201201154139.GF2401593@piout.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Belloni , "tony@atomide.com" , "linux-kernel@vger.kernel.org" , "James.Bottomley@HansenPartnership.com" , "thierry.reding@gmail.com" , "paulus@samba.org" , "sam@ravnborg.org" , "daniel.thompson@linaro.org" , "linux-omap@vger.kernel.org" , Arnd Bergmann , "deller@gmx.de" , "linux@armlinux.org.uk" , "jonathanh@nvidia.com" , "ludovic.desroches@microchip.com" , arm-soc , Catalin Marinas , "linux-mips@vger.kernel.org" , "will@kernel.org" , "mripard@kernel.org" , ZHIZHIKIN Andrey , "linux-tegra@vger.kernel.org" , "lee.jones@linaro.org" , "wens@csie.org" , "linux-arm-kernel@lists.infradead.org" , "jernej.skrabec@siol.net" , "tsbogend@alpha.franken.de" , "linux-parisc@vger.kernel.org" , "emil.l.velikov@gmail.com" , "nicolas.ferre@microchip.com" , Olof Johansson , "linuxppc-dev@lists.ozlabs.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, Dec 01, 2020 at 04:50:22PM +0100, Arnd Bergmann wrote: > On Tue, Dec 1, 2020 at 4:41 PM Alexandre Belloni > wrote: > > On 01/12/2020 14:40:53+0000, Catalin Marinas wrote: > > > On Mon, Nov 30, 2020 at 07:50:25PM +0000, ZHIZHIKIN Andrey wrote: > > > > From Krzysztof Kozlowski : > > > > I tried to convince them before, it didn't work. I guess they don't like > > > to be spammed ;). > > > > The first rule of arm-soc is: you do not talk about arm@ and soc@ > > I don't mind having the addresses documented better, but it needs to > be done in a way that avoids having any patch for arch/arm*/boot/dts > and arch/arm/*/configs Cc:d to soc@kernel.org. > > If anyone has suggestions for how to do that, let me know. Not a perfect solution but something. How about: https://lore.kernel.org/linux-arm-kernel/20201201211516.24921-2-krzk@kernel.org/T/#u Would not work on defconfigs but there is a chance someone will find your addresses this way. Should not cause to much additional traffic. Best regards, Krzysztof 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=-5.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 D4FADC64E7B for ; Tue, 1 Dec 2020 21:20:14 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 6008320705 for ; Tue, 1 Dec 2020 21:20:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YWHyuIq6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6008320705 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: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=4n16gZtehytG5VqAaRsG40fFnhnQDgjd3VXT/+HAgC8=; b=YWHyuIq6UqrlOBPMMt9QuuoZv SrNBiLQb9oEwGuDG6L6YiVXemX8XMQ3BPBIbLeOckQsqE+PHmIWU/CIiwTV67xIIWOSalng9T5nFk QFEmI4g15Jl6k2rcBegV53C8fUurrwUN+LptqbWdjYENLMc7ATOs4x6OqG5YRQsWymJoeuyQYRv6C 249peqNjUMgw0+x9WttGk7CEllSizJFyU+yE9ZSDfiFZ5bVa6BUpBQ8QQowi0ftyhGL8JF9ljrp2D 9O/osAfOyhWvv5ZkSlHpFNCDaRyz8FOj40h4Ow6sM3IdwdlTikTAaIciD7qNlhgnZfqf68bBgeb1C U/hroKnFA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkD35-0003Ri-Cb; Tue, 01 Dec 2020 21:18:59 +0000 Received: from mail-ej1-f68.google.com ([209.85.218.68]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kkD32-0003QM-H6 for linux-arm-kernel@lists.infradead.org; Tue, 01 Dec 2020 21:18:57 +0000 Received: by mail-ej1-f68.google.com with SMTP id f23so7391152ejk.2 for ; Tue, 01 Dec 2020 13:18:53 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=jryqI5sQqWi4PXznClcMpjDSZfGYWOSS95XBGrU9xYM=; b=oEnFvQwSdL1OEW5rZR7OeVzEjWPrsaTnNJBEQFhW4PpSz0jz7AuDofjnD/95K1AbFJ ZaLLan8NmLQXmIUy9ZvGGwl1xtMudSCZ7mRH/eAb+lUmMj8bWhvDDtk7aG2PGSkfs1V7 8k94VVhDNJ6kT6oRK7Gu/AlN4DVC4ynDXInAYPrNhZvX0f6RQafjxsOudxL93WNuQ9b6 WrIdpKHtPMA20711fl34ju93l+J1wj8FwCli1Eqsl0H51d/7CgF+qAxQidQ6O09VtDvc cDtQepFUMcl19Gn9cpRng1IqHlWhdfP6ed58eaAmPCrLt+B6nTLxmLtrfTaBSgtn0baV Mo8g== X-Gm-Message-State: AOAM5304YE1WV8ErlI5qxNIYmssUTL2HWVIzfux4EmMXLSgqwbBZj0pV 8tq5PYdNwF6BOSAmHZSg2Oo= X-Google-Smtp-Source: ABdhPJwVCwY+a1v0Hv+LTfv/oplZ+OnT3nmymHRP5j+/8a+SofJfABEbDHeJGwHTKrcOyfGOWnoRIA== X-Received: by 2002:a17:906:2e16:: with SMTP id n22mr5070528eji.477.1606857532633; Tue, 01 Dec 2020 13:18:52 -0800 (PST) Received: from kozik-lap (adsl-84-226-167-205.adslplus.ch. [84.226.167.205]) by smtp.googlemail.com with ESMTPSA id d14sm484594edu.63.2020.12.01.13.18.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Dec 2020 13:18:51 -0800 (PST) Date: Tue, 1 Dec 2020 23:18:49 +0200 From: Krzysztof Kozlowski To: Arnd Bergmann Subject: Re: [PATCH 1/5] ARM: configs: drop unused BACKLIGHT_GENERIC option Message-ID: <20201201211849.GA23379@kozik-lap> References: <20201130152137.24909-1-andrey.zhizhikin@leica-geosystems.com> <20201130152137.24909-2-andrey.zhizhikin@leica-geosystems.com> <20201130185227.GA29434@kozik-lap> <20201201144052.GE31404@gaia> <20201201154139.GF2401593@piout.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201201_161856_586302_3E3B66FF X-CRM114-Status: GOOD ( 19.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Belloni , "tony@atomide.com" , "benh@kernel.crashing.org" , "linux-kernel@vger.kernel.org" , "James.Bottomley@HansenPartnership.com" , "thierry.reding@gmail.com" , "paulus@samba.org" , "sam@ravnborg.org" , "daniel.thompson@linaro.org" , "linux-omap@vger.kernel.org" , Arnd Bergmann , "mpe@ellerman.id.au" , "deller@gmx.de" , "linux@armlinux.org.uk" , "jonathanh@nvidia.com" , "ludovic.desroches@microchip.com" , arm-soc , Catalin Marinas , "linux-mips@vger.kernel.org" , "will@kernel.org" , "mripard@kernel.org" , ZHIZHIKIN Andrey , "linux-tegra@vger.kernel.org" , "lee.jones@linaro.org" , "wens@csie.org" , "linux-arm-kernel@lists.infradead.org" , "jernej.skrabec@siol.net" , "tsbogend@alpha.franken.de" , "linux-parisc@vger.kernel.org" , "emil.l.velikov@gmail.com" , Olof Johansson , "linuxppc-dev@lists.ozlabs.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Dec 01, 2020 at 04:50:22PM +0100, Arnd Bergmann wrote: > On Tue, Dec 1, 2020 at 4:41 PM Alexandre Belloni > wrote: > > On 01/12/2020 14:40:53+0000, Catalin Marinas wrote: > > > On Mon, Nov 30, 2020 at 07:50:25PM +0000, ZHIZHIKIN Andrey wrote: > > > > From Krzysztof Kozlowski : > > > > I tried to convince them before, it didn't work. I guess they don't like > > > to be spammed ;). > > > > The first rule of arm-soc is: you do not talk about arm@ and soc@ > > I don't mind having the addresses documented better, but it needs to > be done in a way that avoids having any patch for arch/arm*/boot/dts > and arch/arm/*/configs Cc:d to soc@kernel.org. > > If anyone has suggestions for how to do that, let me know. Not a perfect solution but something. How about: https://lore.kernel.org/linux-arm-kernel/20201201211516.24921-2-krzk@kernel.org/T/#u Would not work on defconfigs but there is a chance someone will find your addresses this way. Should not cause to much additional traffic. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel