From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A1CC721ABB2; Mon, 17 Mar 2025 07:03:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742195013; cv=none; b=U349gBRyCb96hl/WrgfRrXVFv+zbKw75ON4QiwZg0r9klm5sjItsXBHoN9I8kFVQqeWj7566X6S+o3ysnggW7fZFTW8/Jt8G8liRk/z5eGNEGHNsGGSTpwRayJxQgYx/zr06VYaqcDjLIG2d1d9fX1bmb8mRk5xfgrrZGcHatHk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742195013; c=relaxed/simple; bh=0S6jABz1EhUz2qAICCSfATcRswehOmpQ5Ix7yQj4L4w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Z7nXV7nONNzNLx+2hrxElM8juc7SKbPOc/cx9um9kqY1kB2WDa8aEZpxcuNjMLfOEp85ua3kACpFrzmpxCOWnoGvuEBVArToY/4NKHqS2ygCQRlM3DaQb48El7TyjOvxEwLnGE4Jo43tNCqfysHRBgsoaloHYPucQBDmL43Tcpk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fMItLiTF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fMItLiTF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77230C4CEE3; Mon, 17 Mar 2025 07:03:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1742195012; bh=0S6jABz1EhUz2qAICCSfATcRswehOmpQ5Ix7yQj4L4w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=fMItLiTF+iO7c74vQ/xjH2PFaEgKVE35W2iU2KFFlLvnjF1GTlcWO5i3oS6OrjGZD kF55DFHVGWC5Y3t8WA5AcvdpzwDNS2rIDUwaW/8d7Ao2m4nP/EIj4Ma3QzWp7ZeD8T qRuBBic00D1uDfElKImUyByL2b7md1BcBjM9wBC56W3o2OCjJJPGO7mb0LmaU+PZB2 n4OXjyGj6rBVYpDrqd00JprfvhoKdT/E13GfJlNjQ3+QPRRUwp0meWMRCxKsfvqxwG u5TbL1tj+fY74snkyVD5rGJlMzVXZSzcOyLi7FnA2P0XnDa9PvTmjIG5G+oxqERDjy RFkaqNKURuqCw== Message-ID: Date: Mon, 17 Mar 2025 08:03:26 +0100 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 00/31] tty: cleanup no. 99 To: gregkh@linuxfoundation.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Alex Elder , Andrew Lunn , Andy Shevchenko , David Lin , "David S. Miller" , Eric Dumazet , greybus-dev@lists.linaro.org, =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , Jakub Kicinski , Johan Hovold , linux-alpha@vger.kernel.org, linux-mmc@vger.kernel.org, linux-staging@lists.linux.dev, Matt Turner , netdev@vger.kernel.org, Paolo Abeni , Richard Henderson , Rob Herring , sparclinux@vger.kernel.org, Ulf Hansson References: <20250317070046.24386-1-jirislaby@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: <20250317070046.24386-1-jirislaby@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Cc (sorry): Alex Elder Andrew Lunn Andy Shevchenko David Lin "David S. Miller" Eric Dumazet greybus-dev@lists.linaro.org "Ilpo Järvinen" Jakub Kicinski Johan Hovold linux-alpha@vger.kernel.org linux-mmc@vger.kernel.org linux-staging@lists.linux.dev Matt Turner netdev@vger.kernel.org Paolo Abeni Richard Henderson Rob Herring sparclinux@vger.kernel.org Ulf Hansson On 17. 03. 25, 8:00, Jiri Slaby (SUSE) wrote: > Hi, > > this is (again) a series of cleanup in tty. I am trying to rework > tty+serial to avoid limitations of devices (so called NR_UART or > tty_alloc_driver()'s first parameter). And the below popped up while > crawling through the code. So this is only a prep cleanup. > > * many tty flags are now enums > * many functions were improved for readability > * quite a few unused or old code dropped > > In particular, the runtime behaviour of the kernel before and after the > changes is supposed to be bug to bug compatible (except moxa's ioctl > and ISA evils dropped). That is, noone should notice. > > [v2] > * use serial_port_in/out() helpers in 26/30 (and not use serial_in/out()) > * the last patch is new > > Jiri Slaby (SUSE) (31): > tty: convert "TTY Struct Flags" to an enum > tty: audit: do not use N_TTY_BUF_SIZE > tty: caif: do not use N_TTY_BUF_SIZE > tty: move N_TTY_BUF_SIZE to n_tty > tty: n_tty: use uint for space returned by tty_write_room() > tty: n_tty: simplify process_output() > tty: n_tty: clean up process_output_block() > tty: n_tty: drop n_tty_trace() > tty: n_tty: extract n_tty_continue_cookie() from n_tty_read() > tty: n_tty: extract n_tty_wait_for_input() > tty: n_tty: move more_to_be_read to the end of n_tty_read() > tty: tty_driver: move TTY macros to the top > tty: tty_driver: convert "TTY Driver Flags" to an enum > tty: tty_driver: document both {,__}tty_alloc_driver() properly > tty: tty_driver: introduce TTY driver sub/types enums > tty: serdev: drop serdev_controller_ops::write_room() > tty: mmc: sdio: use bool for cts and remove parentheses > tty: moxa: drop version dump to logs > tty: moxa: drop ISA support > tty: moxa: carve out special ioctls and extra tty_port > tty: srmcons: fix retval from srmcons_init() > tty: staging/greybus: pass tty_driver flags to tty_alloc_driver() > tty: sunsu: drop serial_{in,out}p() > tty: sunsu: remove unused serial_icr_read() > serial: remove redundant tty_port_link_device() > serial: pass struct uart_state to uart_line_info() > serial: 8250: use serial_port_in/out() helpers > serial: 8250_rsa: simplify rsa8250_{request/release}_resource() > serial: 8250_port: do not use goto for UPQ_NO_TXEN_TEST code flow > serial: 8250_port: simplify serial8250_request_std_resource() > serial: switch change_irq and change_port to bool in uart_set_info() > > Documentation/driver-api/tty/tty_driver.rst | 4 +- > Documentation/driver-api/tty/tty_struct.rst | 2 +- > arch/alpha/kernel/srmcons.c | 62 ++--- > drivers/mmc/core/sdio_uart.c | 2 +- > drivers/net/caif/caif_serial.c | 2 +- > drivers/staging/greybus/uart.c | 4 +- > drivers/tty/Kconfig | 2 +- > drivers/tty/moxa.c | 251 +------------------- > drivers/tty/n_tty.c | 212 ++++++++--------- > drivers/tty/serdev/core.c | 11 - > drivers/tty/serdev/serdev-ttyport.c | 9 - > drivers/tty/serial/8250/8250_dw.c | 16 +- > drivers/tty/serial/8250/8250_fsl.c | 8 +- > drivers/tty/serial/8250/8250_omap.c | 2 +- > drivers/tty/serial/8250/8250_port.c | 59 ++--- > drivers/tty/serial/8250/8250_rsa.c | 21 +- > drivers/tty/serial/serial_core.c | 10 +- > drivers/tty/serial/sunsu.c | 178 ++++++-------- > drivers/tty/tty_audit.c | 10 +- > drivers/tty/tty_io.c | 8 +- > include/linux/serdev.h | 6 - > include/linux/tty.h | 53 +++-- > include/linux/tty_driver.h | 180 +++++++------- > 23 files changed, 412 insertions(+), 700 deletions(-) > -- js suse labs