linux-kernel - Re: [PATCH v2 06/15] ACPI: LPSS: fix some coding style issues

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Date:   Sat, 27 Mar 2021 06:39:07 -0700
From:   Joe Perches <joe@...ches.com>
To:     Andy Shevchenko <andy.shevchenko@...il.com>,
        Xiaofei Tan <tanxiaofei@...wei.com>
Cc:     "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "lenb@...nel.org" <lenb@...nel.org>,
        "rui.zhang@...el.com" <rui.zhang@...el.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linuxarm@...neuler.org" <linuxarm@...neuler.org>
Subject: Re: [PATCH v2 06/15] ACPI: LPSS: fix some coding style issues

On Sat, 2021-03-27 at 10:19 +0200, Andy Shevchenko wrote:
> On Saturday, March 27, 2021, Xiaofei Tan <tanxiaofei@...wei.com> wrote:
> 
> > Fix some coding style issues reported by checkpatch.pl, including
> > following types:
> > 
> > WARNING: simple_strtol is obsolete, use kstrtol instead
> 
> 
> And one more thing, the above message is bogus. Read what the comments in
> the code says about use cases for simple_*() vs. kstrto*() ones.
> 
> Joe?

This check and message is nearly 10 years old and was appropriate for
when it was implemented.

kernel.h currently has:
 * Use these functions if and only if you cannot use kstrto<foo>, because

So the message could be changed to something like:

WARNING: simple_strtol should be used only when kstrtol can not be used.