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 445182BD04 for ; Sun, 2 Mar 2025 17:17:56 +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=1740935881; cv=none; b=PltNg969tJVkfjeMofTnRIVMu8c+cnrjzmyX8aJunQZ3dMB0eUl5dindMC07P4UrINkvxZ038MjYu5JEmveeHDUwWNe6VlxfxoHVOZCfh3Q3M/LZerYc1cAxcEIm/fr0cEhe/ECmc/Y3o/pE3ELFp2CE0VbdgBKZF2gxlPGF8t8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740935881; c=relaxed/simple; bh=iVmWlrKU4nBtHa8hxKOuSe6SPI9KYuZKEtbsJnBTzLA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EZpBQ960XqtBNxKO/Uxmk9GcERNPUYtmwKbS8W5V1bHuRSKx+VeY/ljOia145HRI/wqJp2Ad/QQvpOaiDnrPkysctGrK6qA5ZG26XjaPTnf1uFBCU0Y1pU6/qk0dD1t+NRzOmKADKTWE5PP6Oy4NqP4FrJfesZcQu2iyzgOGd0k= 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=LzOvHwN6; 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="LzOvHwN6" 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-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding: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=41Urw9pUS3IkmTIPuFqUDyIbxUtgIUEIRMkgs9tsTLw=; b=LzOvHwN66Ik5fv+w2t06injFiY YnZ7FHFsu59lHmZLKCvLkcctp2IUR0KNjkAdFAkvTNZCPjf/c7IYZsKVIyum/p4cX1ILzZU5GuwZU VXpiiAnLFveSWPBVTgDxYJHOFDXA0HmHI8FPU35tID0MBZQFz+U+tSmT0kJHCb2TOhxgqxshZ0vl5 CWrVkqWwloCR2ZstuziJXR4hpHrSely7AiMtoXLuWjEUxOLVZiO10d29xWzzKzzIT70LUGnPcQZqa 9Cwa9Uk8S7Cq/X84pbEfJ0i8Roq8/2HaVUI0Slg7NTYGoFG6jN4dbn7+KSQQgniAwoDqFcmAQpheC JsTriIpQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:60310) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tomwi-0006rb-2U; Sun, 02 Mar 2025 17:17:44 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.96) (envelope-from ) id 1tomwg-0002vQ-2a; Sun, 02 Mar 2025 17:17:42 +0000 Date: Sun, 2 Mar 2025 17:17:42 +0000 From: "Russell King (Oracle)" To: phil995511 Cc: "linus.walleij@linaro.org" , "linux-arm-kernel@lists.infradead.org" , "arnd@arndb.de" , "tglx@linutronix.de" , "linux-kernel@vger.kernel.org" , "paulmck@kernel.org" Subject: Re: [GIT PULL] Generic entry for ARM Message-ID: References: <0oXU8PP2CHCw1Qblhw1cKOTt90K2CLbHo4BLw9LOs-J1klN1Y_N7IagulWZHR7bGhmxyPXlZTOUEqVZDtwcXj9j93_BxdrdnmW7qk3uIrU4=@proton.me> 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=us-ascii Content-Disposition: inline In-Reply-To: <0oXU8PP2CHCw1Qblhw1cKOTt90K2CLbHo4BLw9LOs-J1klN1Y_N7IagulWZHR7bGhmxyPXlZTOUEqVZDtwcXj9j93_BxdrdnmW7qk3uIrU4=@proton.me> Sender: Russell King (Oracle) On Sun, Mar 02, 2025 at 03:23:20PM +0000, phil995511 wrote: > It is a very bad idea to want to code the Linux kernel for ARM in C++ !!! > > Our ARM CPUs on RPi and others are not powerful enough to use a Linux kernel written in C++ and therefore lose performance, while these ARM CPUs are already extremely low-performance !!! > > Suggesting to code like this is to be in favor of planned obsolescence, of the scrapping of thousands of small machines ;-( With all due respect, you have your knickers in a twist. This is not about C++, it's about plain old fashioned C, which has been the preferred kernel programming language for decades. I have no idea where you've got the idea that LinusW's commit has anything to do with C++. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!