From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7D823D1CAA for ; Wed, 4 Feb 2026 10:02:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770199365; cv=none; b=BEBjKj+iUtjnzxVtZ44k+PoOQA1woirL3fB6VDvhXMa6l4MvdaCx32SqcwS1I97JVAyPjLDGr+kYBgo4DWYGSDfHxoTjCo566NAdzOcniIiqih6BI4UWZCw1Akwb/A5bHRPAs+MXp11FcLdwkwP8yLCTBEvQ04qXcgsMhSbkqsA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770199365; c=relaxed/simple; bh=yTjBXJlwv5b1G9qI/xV6aJUdonE5S3LfuL+lRLFEMfw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=NLhIRudw+0NPYm+w9b5USur7aPD0hMSyBMjBw/KejvHIUXBdFp0VtUjvIS6iJjq24cyGy6bTQg4LklgNZrHFVE5fgq+Srt3Yaac6ma2eGGhekAq6nX4EwGqYR3gt2Da2+N1nRK7otcasAKTWXiZgKPLMEIH5kHCjW4Ak0ZFebLI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=qmxmXqaZ; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="qmxmXqaZ" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1E7CAwuXrYPxHlFOPrxyXPY7SSEplN4OArYOvdFacSk=; b=qmxmXqaZfPIfu7J0YiyN2AFZRV fKqrZ7aw4rRYg2vLyJ2WDhmBa+//Wn9SVTot1yE7D2+hlGkUEw3LYIdbdd9w6/z6Jk/7LFHTlnIMP tWcSYTwF8jEQjJYSr1NXpmb7waNJdCy6pVwWwBTL3UK+vO8Gx0pLJp64PoCFv4W39KU1Sbl7dxXm9 hwFRxFmhkCvOXF+4g7QGI24YGkr1yTKq66kSmbtHUKE3bNgpVQE3N7GmU1yhkZKm7ybLH7QIMlWbD Vv+QLFE1lLr6AL4U0zgsTyL8BqqRG+QT8y24B8k3Sv/vXEuxykh5rzYpDY9p5On517XU3nsfIrAkV zt3i/pkw==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:36008) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vnZiL-000000006BM-0luA; Wed, 04 Feb 2026 10:02:25 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vnZiH-000000005FY-1E17; Wed, 04 Feb 2026 10:02:21 +0000 Date: Wed, 4 Feb 2026 10:02:21 +0000 From: "Russell King (Oracle)" To: Linus Walleij Cc: Marc Zyngier , "Christian Marangi (Ansuel)" , Geert Uytterhoeven , Linus Walleij , Arnd Bergmann , Andrew Morton , Geert Uytterhoeven , Thomas Gleixner , Jonathan Corbet , "Mike Rapoport (IBM)" , Eric DeVolder , Nathan Chancellor , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Bjorn Andersson , Konrad Dybcio , John Crispin Subject: Re: [PATCH v2 0/2] ARM: decompressor: support AUTO_ZRELADDR and appended DTB Message-ID: References: <666b2379.5d0a0220.c7eec.8b6f@mx.google.com> <86v7gf9z92.wl-maz@kernel.org> <86pl6kamjk.wl-maz@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: Russell King (Oracle) On Wed, Feb 04, 2026 at 10:49:24AM +0100, Linus Walleij wrote: > On Wed, Feb 4, 2026 at 10:24 AM Marc Zyngier wrote: > > > > Another reason would be that appended DTB is in the same > > > league as the GPIO sysfs despite we GPIO maintainers hate it: > > > a feature users highly desire because it's easy and convenient > > > and practical and quick and thus refuse to let us drop. Every time > > > we try to deprecate it more we get a good beating. > > > > I don't think appended DTB is ABI. The GPIO sysfs definitely is. > > The reason the GPIO sysfs is demanded is not so much because > of ABI, like if applications are using it. > > It's more about developers wanting to play with their systems > interactively to figure things out or do makerspace projects > using GPIO. > > Likewise I think appended DTB is appealing to developers because... > "it boots, ship it". ;) Right, but what we have in the kernel works for those platforms that it has been needed for. That's what it was for - a stop-gap for transitioning 32-bit ARM to DT. It shouldn't be extended to new platforms. No one answered my question whether there was a regression or whether this was for new platforms. Given that lack of engagement, I'm just going to say a flat NO to this, since we don't seem to be able to communicate effectively. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!