linux-kernel - RE: [PATCH 1/1] linux/container_of.h: Warn about loss of constness

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Date:   Mon, 24 Oct 2022 08:59:29 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Greg Kroah-Hartman' <gregkh@...uxfoundation.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Andy Shevchenko" <andriy.shevchenko@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: RE: [PATCH 1/1] linux/container_of.h: Warn about loss of constness

From: Greg Kroah-Hartman
> Sent: 24 October 2022 09:44
...
> > + * WARNING: as container_of() casts the given struct to another, also the
> 
> No need for "also" here (sorry for the grammar nit.)
> 
> > + * possible const qualifier of @ptr is lost unless it is also specified in
> > + * @type. This is not a problem if the containing object is not const. Use with
> > + * care.
> 
> I do not think these last two sentences you added here are needed
> either.

It is all TL;DR :-)

Even just:

NOTE: any const qualifier of @ptr is lost.

Is probably more than enough.

	David

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