From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id B031541B17;
	Mon, 28 Aug 2023 17:57:02 +0200 (CEST)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id 43DCE4026D;
	Mon, 28 Aug 2023 17:57:02 +0200 (CEST)
Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182])
 by mails.dpdk.org (Postfix) with ESMTP id 8E68E4021E
 for <dev@dpdk.org>; Mon, 28 Aug 2023 17:57:00 +0200 (CEST)
Received: by linux.microsoft.com (Postfix, from userid 1086)
 id B0CDF2129BD7; Mon, 28 Aug 2023 08:56:59 -0700 (PDT)
DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com B0CDF2129BD7
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com;
 s=default; t=1693238219;
 bh=PI7Zii41qwIH48CV2NHbAHea8pQ/JGSO9EA3fU56CH4=;
 h=Date:From:To:Cc:Subject:References:In-Reply-To:From;
 b=MbBG+62y4pfFWLIvkSwF5lvTb6FelF5WfDeNIFqzSg7n7AKClQA/j952PAp6YLWVg
 zRwNrZ53Aa3cHwo2wg714lUC0BU+Z1OO7LzhHlIp8isOb212P6rVmp6R75bidq7LQB
 PCRE+MU4zp8oTXW0/Es+3zrCuSszYbmLyOzMwCZk=
Date: Mon, 28 Aug 2023 08:56:59 -0700
From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>,
 David Marchand <david.marchand@redhat.com>, dev <dev@dpdk.org>,
 Morten =?iso-8859-1?Q?Br=F8rup?= <mb@smartsharesystems.com>
Subject: Re: [PATCH] eal/x86: fix build on systems with WAITPKG support
Message-ID: <20230828155659.GA19688@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net>
References: <20230825152850.1107690-1-bruce.richardson@intel.com>
 <CAJFAV8x6F8fe0D+9GQ_ncoDDR+b8zRyLkJUfPfuiN6eXfRKx3g@mail.gmail.com>
 <ZOx3F8G9Ny0oFtj4@bricha3-MOBL.ger.corp.intel.com>
 <CAOaVG17VkYUSnBg=A318wFmsrP4htA9LEuz6W+oeuqwVH8ZBnQ@mail.gmail.com>
 <ZOx/DMLEK6oQW59S@bricha3-MOBL.ger.corp.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <ZOx/DMLEK6oQW59S@bricha3-MOBL.ger.corp.intel.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

On Mon, Aug 28, 2023 at 12:03:40PM +0100, Bruce Richardson wrote:
> On Mon, Aug 28, 2023 at 12:42:38PM +0200, Stephen Hemminger wrote:
> >    For humor
> >    #define RTE_CASTAWAY(x) ((void *)(uinptr_t)(x))
> 
> Yes, actually thought about that. Was also wondering about making it an
> inline function rather than macro, to ensure its only used on pointers, and
> to make clear what is being cast away:
> 
> static inline void *
> rte_cast_no_volatile(volatile void *x)
> {
> 	return (void *)(uintptr_t)(x);
> }
> 
> and similarly we could do a rte_cast_no_const(const void *x).
> 
> WDYT?

since we're introducing humor! now announcing dpdk requires C23 comliant
compiler for typeof_unqual! https://en.cppreference.com/w/c/language/typeof

i like the idea, i like it being inline function you could use the name
'unqual' if you wanted to mimic a name similar to standard C typeof.

it could be 1 function that strips all qualifications or N that strip
specific qualifications, const, volatile and _Atomic not sure which is
best.

ty

> 
> /Bruce