linux-kernel - Re: [PATCH v2 2/3] usb: typec: ucsi: Update connector cap and status

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Date: Thu, 25 Jan 2024 16:21:47 -0800
From: Abhishek Pandit-Subedi <abhishekpandit@...omium.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Abhishek Pandit-Subedi <abhishekpandit@...gle.com>, 
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>, linux-usb@...r.kernel.org, 
	jthies@...gle.com, pmalani@...omium.org, 
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Rajaram Regupathy <rajaram.regupathy@...el.com>, Saranya Gopal <saranya.gopal@...el.com>, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] usb: typec: ucsi: Update connector cap and status

On Thu, Jan 25, 2024 at 3:03 PM Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:
>
> On Wed, Jan 24, 2024 at 04:44:53PM -0800, Abhishek Pandit-Subedi wrote:
> > diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
> > index bec920fa6b8a..94b373378f63 100644
> > --- a/drivers/usb/typec/ucsi/ucsi.h
> > +++ b/drivers/usb/typec/ucsi/ucsi.h
> > @@ -3,6 +3,7 @@
> >  #ifndef __DRIVER_USB_TYPEC_UCSI_H
> >  #define __DRIVER_USB_TYPEC_UCSI_H
> >
> > +#include <asm-generic/unaligned.h>
>
> Do you really need to include a asm/ include file?  This feels very
> wrong.

I didn't see any header in include/linux that already had these
unaligned access functions so I opted to include
asm-generic/unaligned.h. Is there a reason not to use an asm/ include
file?

>
> It's also in the wrong place, AND why "asm-generic"?  That also feels
> wrong.

asm-generic is definitely wrong; I misunderstood how these headers are
supposed to be used (should be just asm/unaligned.h).
For ordering, I took a look at some other files and it looks like
<asm/...> goes below the <linux/...> includes. This also probably
deserves documenting in the style guide.

>
> thanks,
>
> greg k-h