linux-kernel - Re: [RFC PATCH 2/5] usb: core: hcd: Let usb_add_hcd() indicate if roothub has to be registered

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Date:   Tue, 24 Aug 2021 15:08:51 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Kishon Vijay Abraham I <kishon@...com>
Cc:     Mathias Nyman <mathias.nyman@...el.com>,
        Alan Stern <stern@...land.harvard.edu>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        chris.chiu@...onical.com
Subject: Re: [RFC PATCH 2/5] usb: core: hcd: Let usb_add_hcd() indicate if
 roothub has to be registered

On Tue, Aug 24, 2021 at 04:22:59PM +0530, Kishon Vijay Abraham I wrote:
> No functional change. Add __usb_add_hcd() which takes "register_hub"
> flag that indicates if roothub has to be registered or not. This is in

"flags" like this are horrid, never do that, except at a local static
function level that might make code easier.

For this, make a usb_hcd_add_and_register() function, so that you know
instantly when seeing it be called, as to what it does.  Otherwise you
have to go look up a random boolean value and that's impossible to
remember over time.

thanks,

greg k-h