linux-kernel - Re: [PATCH] tty: Remove dead termiox code

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Message-ID: <20201207101904.GC2265@angband.pl>
Date:   Mon, 7 Dec 2020 11:19:04 +0100
From:   Adam Borowski <kilobyte@...band.pl>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jiri Slaby <jirislaby@...nel.org>, Jann Horn <jannh@...gle.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tty: Remove dead termiox code

On Fri, Dec 04, 2020 at 10:10:16AM +0100, Greg Kroah-Hartman wrote:
> On Fri, Dec 04, 2020 at 09:51:07AM +0100, Jiri Slaby wrote:
> > > > > On Fri, Dec 04, 2020 at 08:22:41AM +0100, Jiri Slaby wrote:
> > > > > > On 03. 12. 20, 3:03, Jann Horn wrote:
> > > > > > > Delete this dead code; but leave the definition of struct termiox in the
> > > > > > > UAPI headers intact.
[was snipped]
> > > > > > I am thinking -- can/should we mark the structure as deprecated so that                                 
> > > > > > userspace stops using it eventually?   

> > Note this ^^^^^. He is talking about _not_ touching the definition in the
> > UAPI header. Does the rest below makes more sense now?
> 
> No, I'm still confused :)
> 
> We can't touch the UAPI definitions, but the fact that this api never
> did anything still is ok as after this patch it continues to not do
> anything.
> 
> I'm confused as to what you are proposing...

The UAPI definition can't be removed, but it would be nice to issue a
compiler _warning_ if it's ever used.

Like eg. __attribute__ ((deprecated))


Meow!
-- 
⢀⣴⠾⠻⢶⣦⠀    .--[ Makefile ]
⣾⠁⢠⠒⠀⣿⡁    # beware of races
⢿⡄⠘⠷⠚⠋⠀    all: pillage burn
⠈⠳⣄⠀⠀⠀⠀    `----