linux-kernel - Re: [PATCH v1] usb: typec: altmodes/displayport: verify compatible source/sink role combination

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Message-ID: <CALzBnUEhV1m841bPtcJUceOb0EiNF_jczVhOTQSFhVbvc9E=dw@mail.gmail.com>
Date:   Wed, 18 Oct 2023 13:06:57 -0700
From:   RD Babiera <rdbabiera@...gle.com>
To:     Prashant Malani <pmalani@...omium.org>
Cc:     heikki.krogerus@...ux.intel.com, gregkh@...uxfoundation.org,
        badhri@...gle.com, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v1] usb: typec: altmodes/displayport: verify compatible
 source/sink role combination

On Tue, Oct 17, 2023 at 2:33 PM Prashant Malani <pmalani@...omium.org> wrote:
> OTOH, perhaps you should just introduce a macro that performs this
> bitwise operation for even better
> readability. Something like
>
> #define DP_CAP_IS_DFP_D(_cap_)        (!!(DP_CAP_CAPABILITY(_cap_) &
> DP_CAP_DFP_D))

I'll take this approach, thanks for the feedback Prashant!

---

Best,
RD