linux-kernel - Re: [PATCH] PCI: brcmstb: Declare a bitmap as a bitmap, not as a plain 'unsigned long'

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Message-ID: <YYm4+AEffI96KN1l@rocinante>
Date:   Tue, 9 Nov 2021 00:55:36 +0100
From:   Krzysztof Wilczyński <kw@...ux.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        nsaenz@...nel.org, jim2101024@...il.com,
        bcm-kernel-feedback-list@...adcom.com, lorenzo.pieralisi@....com,
        robh@...nel.org, bhelgaas@...gle.com,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] PCI: brcmstb: Declare a bitmap as a bitmap, not as a
 plain 'unsigned long'

Hi Florian,

[...]
> >>>> Jim, Florian and Lorenzo - is this something that would be OK with you,
> >>>> or you would rather keep things as they were?
> >>>
> >>> I would be tempted to leave the code as-is, but if we do we are probably
> >>> bound to seeing patches like Christophe's in the future to address the
> >>
> >> Even if I don't find this report in the Coverity database, it should from
> >> around April 2018.
> >> So, if you have not already received several patches for that, I doubt that
> >> you will receive many in the future.
> >>
> >>
> >> My own feeling is that using a long (and not a long *) as a bitmap, and
> >> accessing it with &long may look spurious to a reader.
> >> That said, it works.
> >>
> >> So, I let you decide if the patch is of any use. Should I need to tweak or
> >> resend it, let me know.
> > 
> > I would be pro taking it, not only to addresses the Coverity complaint, but
> > also to align the code with other drivers a little bit more.  Only if
> > the driver maintainers have no objection, that is.
> 
> Driver consistency is a strong argument, fine with me then.

Thank you!

	Krzysztof