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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id D4E2BCCF2D3 for ; Mon, 19 Oct 2026 08:16:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=kWLBljJF+g21y6oGGUekme2PmMbMBIzShNS8HAgf7NQ=; b=W5JjQJrgLJIFu/LXO6vl5mH/Qr onNtQMIAMk29sPbf/UqAgRs7GJS+KaklTcbKOP/xpudiln2tOzK7Y2a5gAeieSPPJxsP7Z5I+Orkd D0AmE16Q3KR5pVFNPu2rudObqU02fVaYW/de92JWAiejQqZ0gAbbWnjm1aOq98jCOqZFMSpQGzj83 BYXOnf7MO8d/E5+smyhjHVV7LHgXz9tVoKErblFsyfJe0nFILM6cLkqSUvDc4BrekUacfCLy+KD2V 0J0PYwGV3aFLDA1ejj7ZPh/RioTZxLMh6Ajq6IarkU2EILvj/I4T5wEC7QdBiexYk/WntcAyElXcS rDSmnPBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIiXE-00000006r3Y-1CXd; Mon, 19 Oct 2026 08:15:56 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xIiXC-00000006r3J-46MG for linux-arm-kernel@lists.infradead.org; Mon, 19 Oct 2026 08:15:55 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id B9A4840350; Mon, 19 Oct 2026 08:15:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9BCC91F000C5; Mon, 19 Oct 2026 08:15:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792397754; bh=kWLBljJF+g21y6oGGUekme2PmMbMBIzShNS8HAgf7NQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=TjD5A3WP2aVkCdsuXF++BwQYPbJESmbfsRs0S22sEQPsOD7ybcLmYNLKy5DpB/wbU 5BTd/PNssljD8ejNVaxcFeBTH5N31+7/IQ/ji9R4jRZYy+xCo2HrxpliA1G2G5uH/R U1JC4i6Ow9n5Gu26W17/wp8lt3smPHn0ZeupT5iQa83v5VD53J+7o8vScJki0DVko0 QvL8kOfgjnrOyvCm8izdE+x0kO9cZGWnxvIhwH8NoZ/uJ4HT1qVmADng61DvPdUp8E cVAj70FSHSS/EO6HBHcPOSBkWSrRHRE0v1oaEOoPvg77xRuoxTe1kTfCxmsT4QTi0c nL6a4Jrg0j/UA== Message-ID: <0ec5fddf-f8de-4c82-a42d-6abca1e06091@kernel.org> Date: Mon, 19 Oct 2026 10:15:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] tty: serial: remove hub6 multiport support To: Arnd Bergmann , Greg Kroah-Hartman , Andy Shevchenko , =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig_=28The_Capable_Hub=29?= , Hugo Villeneuve Cc: Arnd Bergmann , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev References: <20261016130328.1037616-1-arnd@kernel.org> Content-Language: en-US From: Jiri Slaby Autocrypt: addr=jirislaby@kernel.org; keydata= xsFNBE6S54YBEACzzjLwDUbU5elY4GTg/NdotjA0jyyJtYI86wdKraekbNE0bC4zV+ryvH4j rrcDwGs6tFVrAHvdHeIdI07s1iIx5R/ndcHwt4fvI8CL5PzPmn5J+h0WERR5rFprRh6axhOk rSD5CwQl19fm4AJCS6A9GJtOoiLpWn2/IbogPc71jQVrupZYYx51rAaHZ0D2KYK/uhfc6neJ i0WqPlbtIlIrpvWxckucNu6ZwXjFY0f3qIRg3Vqh5QxPkojGsq9tXVFVLEkSVz6FoqCHrUTx wr+aw6qqQVgvT/McQtsI0S66uIkQjzPUrgAEtWUv76rM4ekqL9stHyvTGw0Fjsualwb0Gwdx ReTZzMgheAyoy/umIOKrSEpWouVoBt5FFSZUyjuDdlPPYyPav+hpI6ggmCTld3u2hyiHji2H cDpcLM2LMhlHBipu80s9anNeZhCANDhbC5E+NZmuwgzHBcan8WC7xsPXPaiZSIm7TKaVoOcL 9tE5aN3jQmIlrT7ZUX52Ff/hSdx/JKDP3YMNtt4B0cH6ejIjtqTd+Ge8sSttsnNM0CQUkXps w98jwz+Lxw/bKMr3NSnnFpUZaxwji3BC9vYyxKMAwNelBCHEgS/OAa3EJoTfuYOK6wT6nadm YqYjwYbZE5V/SwzMbpWu7Jwlvuwyfo5mh7w5iMfnZE+vHFwp/wARAQABzSFKaXJpIFNsYWJ5 IDxqaXJpc2xhYnlAa2VybmVsLm9yZz7CwXcEEwEIACEFAlW3RUwCGwMFCwkIBwIGFQgJCgsC BBYCAwECHgECF4AACgkQvSWxBAa0cEnVTg//TQpdIAr8Tn0VAeUjdVIH9XCFw+cPSU+zMSCH eCZoA/N6gitEcnvHoFVVM7b3hK2HgoFUNbmYC0RdcSc80pOF5gCnACSP9XWHGWzeKCARRcQR 4s5YD8I4VV5hqXcKo2DFAtIOVbHDW+0okOzcecdasCakUTr7s2fXz97uuoc2gIBB7bmHUGAH XQXHvdnCLjDjR+eJN+zrtbqZKYSfj89s/ZHn5Slug6w8qOPT1sVNGG+eWPlc5s7XYhT9z66E l5C0rG35JE4PhC+tl7BaE5IwjJlBMHf/cMJxNHAYoQ1hWQCKOfMDQ6bsEr++kGUCbHkrEFwD UVA72iLnnnlZCMevwE4hc0zVhseWhPc/KMYObU1sDGqaCesRLkE3tiE7X2cikmj/qH0CoMWe gjnwnQ2qVJcaPSzJ4QITvchEQ+tbuVAyvn9H+9MkdT7b7b2OaqYsUP8rn/2k1Td5zknUz7iF oJ0Z9wPTl6tDfF8phaMIPISYrhceVOIoL+rWfaikhBulZTIT5ihieY9nQOw6vhOfWkYvv0Dl o4GRnb2ybPQpfEs7WtetOsUgiUbfljTgILFw3CsPW8JESOGQc0Pv8ieznIighqPPFz9g+zSu Ss/rpcsqag5n9rQp/H3WW5zKUpeYcKGaPDp/vSUovMcjp8USIhzBBrmI7UWAtuedG9prjqfO wU0ETpLnhgEQAM+cDWLL+Wvc9cLhA2OXZ/gMmu7NbYKjfth1UyOuBd5emIO+d4RfFM02XFTI t4MxwhAryhsKQQcA4iQNldkbyeviYrPKWjLTjRXT5cD2lpWzr+Jx7mX7InV5JOz1Qq+P+nJW YIBjUKhI03ux89p58CYil24Zpyn2F5cX7U+inY8lJIBwLPBnc9Z0An/DVnUOD+0wIcYVnZAK DiIXODkGqTg3fhZwbbi+KAhtHPFM2fGw2VTUf62IHzV+eBSnamzPOBc1XsJYKRo3FHNeLuS8 f4wUe7bWb9O66PPFK/RkeqNX6akkFBf9VfrZ1rTEKAyJ2uqf1EI1olYnENk4+00IBa+BavGQ 8UW9dGW3nbPrfuOV5UUvbnsSQwj67pSdrBQqilr5N/5H9z7VCDQ0dhuJNtvDSlTf2iUFBqgk 3smln31PUYiVPrMP0V4ja0i9qtO/TB01rTfTyXTRtqz53qO5dGsYiliJO5aUmh8swVpotgK4 /57h3zGsaXO9PGgnnAdqeKVITaFTLY1ISg+Ptb4KoliiOjrBMmQUSJVtkUXMrCMCeuPDGHo7 39Xc75lcHlGuM3yEB//htKjyprbLeLf1y4xPyTeeF5zg/0ztRZNKZicgEmxyUNBHHnBKHQxz 1j+mzH0HjZZtXjGu2KLJ18G07q0fpz2ZPk2D53Ww39VNI/J9ABEBAAHCwV8EGAECAAkFAk6S 54YCGwwACgkQvSWxBAa0cEk3tRAAgO+DFpbyIa4RlnfpcW17AfnpZi9VR5+zr496n2jH/1ld wRO/S+QNSA8qdABqMb9WI4BNaoANgcg0AS429Mq0taaWKkAjkkGAT7mD1Q5PiLr06Y/+Kzdr 90eUVneqM2TUQQbK+Kh7JwmGVrRGNqQrDk+gRNvKnGwFNeTkTKtJ0P8jYd7P1gZb9Fwj9YLx jhn/sVIhNmEBLBoI7PL+9fbILqJPHgAwW35rpnq4f/EYTykbk1sa13Tav6btJ+4QOgbcezWI wZ5w/JVfEJW9JXp3BFAVzRQ5nVrrLDAJZ8Y5ioWcm99JtSIIxXxt9FJaGc1Bgsi5K/+dyTKL wLMJgiBzbVx8G+fCJJ9YtlNOPWhbKPlrQ8+AY52Aagi9WNhe6XfJdh5g6ptiOILm330mkR4g W6nEgZVyIyTq3ekOuruftWL99qpP5zi+eNrMmLRQx9iecDNgFr342R9bTDlb1TLuRb+/tJ98 f/bIWIr0cqQmqQ33FgRhrG1+Xml6UXyJ2jExmlO8JljuOGeXYh6ZkIEyzqzffzBLXZCujlYQ DFXpyMNVJ2ZwPmX2mWEoYuaBU0JN7wM+/zWgOf2zRwhEuD3A2cO2PxoiIfyUEfB9SSmffaK/ S4xXoB6wvGENZ85Hg37C7WDNdaAt6Xh2uQIly5grkgvWppkNy4ZHxE+jeNsU7tg= In-Reply-To: <20261016130328.1037616-1-arnd@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 16. 10. 26, 14:59, Arnd Bergmann wrote: > From: Arnd Bergmann > > hub6 support was added in linux-0.99 and the hardware was already old at > the time, being discontinued in 1990. The code for it has always been a > mess since it adds another dimension to the I/O addressing in the driver > that has leaked into many individual files. > > Hugo and Uwe have attempted several times this year alone to isolate > the hub6 handling into the 8250_hub6.c file, but I feel that none of > this has been a real improvement over the original standalone loadable > module support. > > Any machine that would have used this ISA card in practice is likely > 30 to 40 years old, and with i486 support now removed, it is clearly > safe to just kill this all off. The only bit that has to remain > is the ioctl interface, to ensure the serial_struct field is always > zero. > > Link: https://mirrors.nycbug.org/pub/The_Unix_Archive/Unix_Usenet/comp.unix.sysv386/1990-December/007174.html > Fixes: a300273c458c ("serial: 8250: hub6: Add cleanup code") > Fixes: c526404a4a92 ("serial: 8250: Fix corner case for port matching") > Fixes: 7ab80d1e7243 ("serial: 8250: fix compile error with hub6_match_port() when compiled as a module") > Fixes: da7b5fd4e17f ("serial: 8250_hub6: add missing include for hub6_match_port()") > Fixes: 3d406299d882 ("serial: 8250_hub6: add hub6_match_port()") > Signed-off-by: Arnd Bergmann > --- > drivers/tty/serial/8250/8250.h | 15 ------- > drivers/tty/serial/8250/8250_core.c | 2 - > drivers/tty/serial/8250/8250_hub6.c | 60 ------------------------- > drivers/tty/serial/8250/8250_platform.c | 11 +---- > drivers/tty/serial/8250/8250_port.c | 23 ---------- > drivers/tty/serial/8250/Kconfig | 15 ++----- > drivers/tty/serial/8250/Makefile | 1 - > drivers/tty/serial/atmel_serial.c | 2 - > drivers/tty/serial/fsl_lpuart.c | 2 - > drivers/tty/serial/imx.c | 2 - > drivers/tty/serial/mpc52xx_uart.c | 3 +- > drivers/tty/serial/sa1100.c | 2 - > drivers/tty/serial/serial_core.c | 18 +++----- > drivers/tty/serial/sunsu.c | 9 ---- > drivers/tty/serial/xilinx_uartps.c | 2 - > include/linux/serial_8250.h | 2 - > include/linux/serial_core.h | 2 - > 17 files changed, 12 insertions(+), 159 deletions(-) > delete mode 100644 drivers/tty/serial/8250/8250_hub6.c Great, you would have saved me a headache if you had sent these long time ago ;). So I will Ack both, once you repost with the reported issues fixed. thanks, -- js suse labs