linux-kernel - Re: [PATCH v3 0/4] tty: TX helpers

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Date:   Tue, 6 Sep 2022 13:30:54 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Jiri Slaby <jslaby@...e.cz>
Cc:     gregkh@...uxfoundation.org,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
        linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tobias Klauser <tklauser@...tanz.ch>,
        Richard Genoud <richard.genoud@...il.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Liviu Dudau <liviu.dudau@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        bcm-kernel-feedback-list@...adcom.com,
        Pali Rohár <pali@...nel.org>,
        Kevin Cernekee <cernekee@...il.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Orson Zhai <orsonzhai@...il.com>,
        Baolin Wang <baolin.wang7@...il.com>,
        Chunyan Zhang <zhang.lyra@...il.com>,
        Patrice Chotard <patrice.chotard@...s.st.com>,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v3 0/4] tty: TX helpers

On Tue, Sep 06, 2022 at 12:48:01PM +0200, Jiri Slaby wrote:
> This series introduces DEFINE_UART_PORT_TX_HELPER +
> DEFINE_UART_PORT_TX_HELPER_LIMITED TX helpers. See PATCH 2/4 for the
> details. Comments welcome.
> 
> Then it switches drivers to use them. First, to
> DEFINE_UART_PORT_TX_HELPER() in 3/4 and then
> DEFINE_UART_PORT_TX_HELPER_LIMITED() in 4/4.
> 
> The diffstat of patches 3+4 is as follows:
>  26 files changed, 191 insertions(+), 823 deletions(-)
> which appears to be nice.

Not really. This is horrid. Quality can't be measured in LoC (only).

The resulting code is unreadable. And for no good reason.

[ And note that you're "saving" something like 20 lines per driver:

	 12 files changed, 84 insertions(+), 349 deletions(-)
]

NAK

Johan