linux-kernel - Re: [PATCH] linux/kernel.h: break long lines

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Date:   Sat, 24 Feb 2018 13:45:30 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Borislav Petkov <bp@...e.de>
Cc:     Gustavo Leite <gustavoleite.ti@...il.com>,
        linux-kernel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kees Cook <keescook@...omium.org>, Baoquan He <bhe@...hat.com>,
        Ian Abbott <abbotti@....co.uk>,
        Randy Dunlap <rdunlap@...radead.org>,
        Niklas Söderlund 
        <niklas.soderlund+renesas@...natech.se>
Subject: Re: [PATCH] linux/kernel.h: break long lines

On Sat, Feb 24, 2018 at 07:30:44PM +0100, Borislav Petkov wrote:
> 
> And, for the record, if we have to break a function signature, we align the
> arguments at the opening brace like this:
> 
> static inline int __must_check kstrtou64_from_user(const char __user *s,
> 						   size_t count, unsigned int base, u64 *res)
>

An alternate approach is this:

static inline int __must_check
kstrtou64_from_user(const char __user *s, size_t count, unsigned int base, u64 *res)

Which yes, is still longer than 80 characters.  But this is where
blindly following coding guidelines as if they are fundamentalist
biblical doctrine is not really a great idea.  The goal is to make the
code easier to read, and very often it's important to apply _judgement_.
(Which is one of the reasons why I generally don't really like newbies
trying to apply checkpatch.pl to existing source files.)

Cheers,

					- Ted