netdev - Re: [PATCH v1 3/3] net: WireGuard secure network tunnel

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Message-ID: <CAHmME9oKvhQhn-8tjpNfKFgNPLH9aZAPO=iEwi2M4w2YBa5JBQ@mail.gmail.com>
Date:   Tue, 21 Aug 2018 16:41:50 -0700
From:   "Jason A. Donenfeld" <Jason@...c4.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     Netdev <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v1 3/3] net: WireGuard secure network tunnel

On Tue, Jul 31, 2018 at 1:22 PM Stephen Hemminger
<stephen@...workplumber.org> wrote:
>
> On Tue, 31 Jul 2018 21:11:02 +0200
> "Jason A. Donenfeld" <Jason@...c4.com> wrote:
>
> > +static int walk_by_peer(struct allowedips_node __rcu *top, u8 bits, struct allowedips_cursor *cursor, struct wireguard_peer *peer, int (*func)(void *ctx, const u8 *ip, u8 cidr, int family), void *ctx, struct mutex *lock)
> > +{
>
> Please break lines at something reasonable like 100 characters.

As I mentioned earlier, things will certainly be that way for v2, and
I'm in the process of that. I do care quite a bit about having "pretty
code", and so while I'm wrapping, I want to do it well and
consistently. Indeed 100 characters is far more reasonable than 80 --
things wind up much less annoying. And 120 is even easier. I don't
want to have to start renaming nice descriptive struct names and nice
descriptive struct member names just to avoid the line breaks in
function signatures, or something silly like that. In any case, before
I take out my word wrapping paint brush and make the prettiest
wrapping I can, I wanted to double check and confirm what the norm is
for the net tree. Is 100 in fact acceptable for new code? 120? 180?
What's the generally accepted limit these days?

(And, folks, please don't let this inquiry spiral out of control into
a bikeshed thread. I'm narrowly interested in knowing what the facts
are on what the norm is and what will be accepted here, rather than a
cacophony of random opinions.)