linux-kernel - Re: [PATCH v2 01/12] regmap-irq: Convert bool bitfields to unsigned int

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Date:   Fri, 24 Jun 2022 05:46:10 -0700
From:   Joe Perches <joe@...ches.com>
To:     Mark Brown <broonie@...nel.org>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Aidan MacDonald <aidanmacdonald.0x0@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Matti Vaittinen <mazziesaccount@...il.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 01/12] regmap-irq: Convert bool bitfields to unsigned
 int

On Fri, 2022-06-24 at 13:11 +0100, Mark Brown wrote:
> On Thu, Jun 23, 2022 at 11:26:10PM +0200, Andy Shevchenko wrote:
> > On Thu, Jun 23, 2022 at 11:13 PM Aidan MacDonald
> 
> > > Use 'unsigned int' for bitfields for consistency with most other
> > > kernel code.
> 
> > There is no point to convert the fields you are about to remove.
> 
> > So, either don't touch them or make this patch closer to the end of the series.
> 
> It costs us nothing to convert them, this isn't a difficult or hard to
> understand refactoring - the patch is fine the way it is.

Modulo the defects that might be introduced if an overflow occurs.

struct foo {
	unsigned int a:1;
	bool b:1;
}

Assign a non-zero int without bit 0 set to each and see if
a and b differ.