Re: [PATCH 02/39] arch/alpha: Update WARN uses

From: Joe Perches
Date: Sat Oct 30 2010 - 21:39:13 EST


On Sun, 2010-10-31 at 14:11 +1300, Michael Cree wrote:
> On 31/10/10 10:28, Joe Perches wrote:
> > On Sat, 2010-10-30 at 17:17 -0400, Matt Turner wrote:
> >> On Sat, Oct 30, 2010 at 5:08 PM, Joe Perches<joe@xxxxxxxxxxx> wrote:
> >>> Coalesce long formats.
> >>> Align arguments.
> >> What's accomplished here? It looks like you joined two strings (which
> >> were separated as to not overflow the 80-char limit) and spaced a
> >> couple lines over.
> > This one is just a whitespace cleanup.
> > Ignore it or nack it if you want.
> I prefer the original indenting as it clearly stands the `1' on its own
> thus emphasising that the warning will be printed everytime the WARN()
> statement is executed. I surmise that the original programmer thought
> it important to emphasise this as it might not be considered the
> "normal" usage of WARN().

Actually, WARN(1, foo) is by far the most common use of WARN.
More than half of all uses.

$ grep -rP --include=*.[ch] -oh "\bWARN\s*\(" * | wc -l
286
$ grep -rP --include=*.[ch] -oh "\bWARN\s*\(\w+" * | \
sort | uniq -c | sort -rn | head -5
173 WARN(1
8 WARN(IS_ERR
4 WARN(ret
4 WARN(priv
4 WARN(local

> The moral here is that when a _competent_ programmer breaks the "style
> guide" they are most likely doing so for a very good reason. Thus,
> those who would submit whitespace fix patches should take time to ask
> themselves why the original programmer has laid out the code in such a
> fashion and learn from it, before submitting so-called "fixes".

Code is decidedly not music.

This stuff is mostly craft not art and consistency in
craft has value.

You might also note I didn't call it a fix, I called it
a whitespace cleanup.

And again, I don't much care if it's applied to
arch/alpha or not. I haven't had an alpha since I gave
away my AlphaStation a decade ago.

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