linux-kernel - Re: [PATCH] checkpatch: don't warn on every struct without const

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Date:   Tue, 10 Jan 2017 16:04:32 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org
Subject: Re: [PATCH] checkpatch: don't warn on every struct without
 const_structs file

On Tue, 2017-01-10 at 07:01 -0800, Joe Perches wrote:
> On Tue, 2017-01-10 at 15:03 +0100, Johannes Berg wrote:
> > From: Johannes Berg <johannes.berg@...el.com>
> > 
> > The script says that it won't warn:
> > "No structs that should be const will be found [...]"
> > 
> > but then that doesn't work and it warns on every single struct
> > instead, since the regular expression ends up empty. Fix that
> > by checking that it's not empty first.
> 
> nak.
> 
> How does const_structs end up empty for you?

I copied checkpatch elsewhere and ran it.

Regardless, the current code is utterly stupid - it prints a warning
that it won't flag any structs, and then proceeds to flag all structs.

If you must, send a patch to abort() [whatever the perl equivalent is]
when the file can't be found, but as it is, the code is just idiotic.

johannes