linux-kernel - Re: [PATCH v5] printk: Userspace format enumeration support

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Message-ID: <8cddfac598fb0ef3c10d583fc70a5ebf1c8aeddc.camel@perches.com>
Date:   Mon, 19 Apr 2021 04:02:08 -0700
From:   Joe Perches <joe@...ches.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Petr Mladek <pmladek@...e.com>
Cc:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        Chris Down <chris@...isdown.name>,
        linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        John Ogness <john.ogness@...utronix.de>,
        Johannes Weiner <hannes@...xchg.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Kees Cook <keescook@...omium.org>, kernel-team@...com
Subject: Re: [PATCH v5] printk: Userspace format enumeration support

On Mon, 2021-04-19 at 11:53 +0200, Greg Kroah-Hartman wrote:
> Hm, 12734 of the pr_err() calls do live in drivers/, so most of those
> should be dev_err().  Might be something good to throw at interns...

That depends on how much churn you want to have in old drivers that
generally don't have any users because the hardware is ancient or
no longer manufactured.

I suggest not changing those.

But I believe a coccinelle script was written quite awhile ago
to convert pr_<level> to dev_<level> when a struct device * is
available.

http://btrlinux.inria.fr/staging-media-replace-pr_-with-dev_/