linux-kernel - Re: Following up

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Message-ID: <20201028053423.GA1205528@PWN>
Date:   Wed, 28 Oct 2020 01:34:23 -0400
From:   Peilin Ye <yepeilin.cs@...il.com>
To:     Daniel Vetter <daniel.vetter@...ll.ch>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Following up

On Tue, Oct 27, 2020 at 07:36:54PM +0100, Daniel Vetter wrote:
> On Tue, Oct 27, 2020 at 5:50 PM Peilin Ye <yepeilin.cs@...il.com> wrote:
> >     ...you mentioned code search, where & what should we look at, in order
> >     to confirm it's safe to remove them?
> 
> Way back there was google's code search, which was awesome. Now I just
> put the structure name/ioctl #define/number into
> google/bing/duckduckgo and see if anything turns up. Plus check how
> it's used in fb tools (although I just recently learned that fb-test
> pretty much disappeared from the internet, very hard to find the
> original).
> 
> If you're unsure, we can merge a patch, then wait about 1 year for any
> users to show up with problems. If that's not the case, assume they're
> all gone, or it was never used and just implemented because it was
> copied from somewhere else, or "just in case". There's lots of dead
> uapi around.

I see, it will be my next thing to do. Hopefully this will remove a lot
of console_font occurrences.

Peilin