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From: Greg KH <greg@kroah.com>
To: David Howells <dhowells@redhat.com>
Cc: moderated for non-subscribers <alsa-devel@alsa-project.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	David Airlie <airlied@linux.ie>, Jason Wang <jasowang@redhat.com>,
	Mat Martineau <mathew.j.martineau@linux.intel.com>,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	keyrings@vger.kernel.org,
	Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>,
	linux-nilfs@vger.kernel.org, linux-nvdimm@lists.01.org,
	codalist@coda.cs.cmu.edu, coda@cs.cmu.edu,
	coreteam@netfilter.org,
	Kent Overstreet <kent.overstreet@gmail.com>,
	linux-kbuild@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Coly Li <colyli@suse.de>,
	linux-bcache@vger.kernel.org, Jaroslav Kysela <perex@perex.cz>,
	Jan Harkes <jaharkes@cs.cmu.edu>,
	Michal Marek <michal.lkml@markovi.net>,
	linux-api@vger.kernel.org, Takashi Iwai <tiwai@suse.com>,
	linux-kernel@vger.kernel.org, Rob Clark <robdclark@gmail.com>,
	netfilter-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	freedreno@lists.freedesktop.org
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 18:55:52 +0200	[thread overview]
Message-ID: <20180905165552.GB25206@kroah.com> (raw)
In-Reply-To: <153616286704.23468.584491117180383924.stgit@warthog.procyon.org.uk>

On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
> 
> Here's a set of patches that inserts a step into the build process to make
> sure that the UAPI headers can all be built together with C++ (if the
> compiler being used supports C++).  All but the final patch perform fixups,
> including:

Wait, why do we care?  What has recently changed to start to directly
import kernel uapi files into C++ code?

And if userspace wants to do this, can't they do the C namespace trick
themselves when they do the import?  That must be how they are doing it
today, right?

thanks,

greg k-h
_______________________________________________
Linux-nvdimm mailing list
Linux-nvdimm@lists.01.org
https://lists.01.org/mailman/listinfo/linux-nvdimm

WARNING: multiple messages have this Message-ID
From: Greg KH <greg-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
To: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: moderated for non-subscribers
	<alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
	"Michael S. Tsirkin"
	<mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
	Jason Wang <jasowang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Mat Martineau
	<mathew.j.martineau-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	Masahiro Yamada
	<yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>,
	keyrings-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Ryusuke Konishi
	<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
	linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
	codalist-/uMB558Y47wP4a1z8dhFYw@public.gmane.org,
	coda-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org,
	coreteam-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org,
	Kent Overstreet
	<kent.overstreet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Coly Li <colyli-l3A5Bk7waGM@public.gmane.org>,
	linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jaroslav Kysela <perex-/Fr2/VpizcU@public.gmane.org>,
	Jan Harkes <jaharkes-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org>,
	Michal Marek
	<michal.lkml-yyZNWGI4GtDR7s880joybQ@public.gmane.org>,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Takashi Iwai <tiwai-IBi9RG/b67k@public.gmane.org>, linux-kernel@
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 18:55:52 +0200	[thread overview]
Message-ID: <20180905165552.GB25206@kroah.com> (raw)
In-Reply-To: <153616286704.23468.584491117180383924.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>

On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
> 
> Here's a set of patches that inserts a step into the build process to make
> sure that the UAPI headers can all be built together with C++ (if the
> compiler being used supports C++).  All but the final patch perform fixups,
> including:

Wait, why do we care?  What has recently changed to start to directly
import kernel uapi files into C++ code?

And if userspace wants to do this, can't they do the C namespace trick
themselves when they do the import?  That must be how they are doing it
today, right?

thanks,

greg k-h

WARNING: multiple messages have this Message-ID
From: Greg KH <greg@kroah.com>
To: David Howells <dhowells-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: moderated for non-subscribers
	<alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org>,
	"Michael S. Tsirkin"
	<mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	David Airlie <airlied-cv59FeDIM0c@public.gmane.org>,
	Jason Wang <jasowang-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Mat Martineau
	<mathew.j.martineau-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	virtualization-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	Masahiro Yamada
	<yamada.masahiro-uWyLwvC0a2jby3iVrkZq2A@public.gmane.org>,
	keyrings-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Ryusuke Konishi
	<konishi.ryusuke-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>,
	linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nvdimm-hn68Rpc1hR1g9hUCZPvPmw@public.gmane.org,
	codalist-/uMB558Y47wP4a1z8dhFYw@public.gmane.org,
	coda-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org,
	coreteam-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org,
	Kent Overstreet
	<kent.overstreet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	linux-kbuild-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Coly Li <colyli-l3A5Bk7waGM@public.gmane.org>,
	linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Jaroslav Kysela <perex-/Fr2/VpizcU@public.gmane.org>,
	Jan Harkes <jaharkes-ETDLCGt7PQU3uPMLIKxrzw@public.gmane.org>,
	Michal Marek
	<michal.lkml-yyZNWGI4GtDR7s880joybQ@public.gmane.org>,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Takashi Iwai <tiwai-IBi9RG/b67k@public.gmane.org>
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 05 Sep 2018 16:55:52 +0000	[thread overview]
Message-ID: <20180905165552.GB25206@kroah.com> (raw)
In-Reply-To: <153616286704.23468.584491117180383924.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>

On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
> 
> Here's a set of patches that inserts a step into the build process to make
> sure that the UAPI headers can all be built together with C++ (if the
> compiler being used supports C++).  All but the final patch perform fixups,
> including:

Wait, why do we care?  What has recently changed to start to directly
import kernel uapi files into C++ code?

And if userspace wants to do this, can't they do the C namespace trick
themselves when they do the import?  That must be how they are doing it
today, right?

thanks,

greg k-h

WARNING: multiple messages have this Message-ID
From: Greg KH <greg@kroah.com>
To: David Howells <dhowells@redhat.com>
Cc: linux-api@vger.kernel.org, linux-kbuild@vger.kernel.org,
	Michal Marek <michal.lkml@markovi.net>,
	dri-devel@lists.freedesktop.org,
	virtualization@lists.linux-foundation.org,
	keyrings@vger.kernel.org, David Airlie <airlied@linux.ie>,
	linux-nilfs@vger.kernel.org, linux-nvdimm@lists.01.org,
	"Michael S. Tsirkin" <mst@redhat.com>,
	codalist@coda.cs.cmu.edu, coda@cs.cmu.edu,
	coreteam@netfilter.org, Rob Clark <robdclark@gmail.com>,
	linux-arm-msm@vger.kernel.org,
	Kent Overstreet <kent.overstreet@gmail.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Takashi Iwai <tiwai@suse.com>,
	linux-bcache@vger.kernel.org, Coly Li <colyli@suse.de>,
	Jaroslav Kysela <perex@perex.cz>,
	Jan Harkes <jaharkes@cs.cmu.edu>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>,
	Jason Wang <jasowang@redhat.com>,
	Mat Martineau <mathew.j.martineau@linux.intel.com>,
	netfilter-devel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	moderated for non-subscribers <alsa-devel@alsa-project.org>,
	freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC] UAPI: Check headers by compiling all together as C++
Date: Wed, 5 Sep 2018 18:55:52 +0200	[thread overview]
Message-ID: <20180905165552.GB25206@kroah.com> (raw)
In-Reply-To: <153616286704.23468.584491117180383924.stgit@warthog.procyon.org.uk>

On Wed, Sep 05, 2018 at 04:54:27PM +0100, David Howells wrote:
> 
> Here's a set of patches that inserts a step into the build process to make
> sure that the UAPI headers can all be built together with C++ (if the
> compiler being used supports C++).  All but the final patch perform fixups,
> including:

Wait, why do we care?  What has recently changed to start to directly
import kernel uapi files into C++ code?

And if userspace wants to do this, can't they do the C namespace trick
themselves when they do the import?  That must be how they are doing it
today, right?

thanks,

greg k-h

  parent reply	other threads:[~2018-09-05 16:56 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-05 15:54 David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` David Howells
2018-09-05 15:54 ` [PATCH 01/11] UAPI: drm: Fix use of C++ keywords as structural members David Howells
2018-09-05 15:54   ` David Howells
2018-09-05 15:54 ` [PATCH 02/11] UAPI: keys: " David Howells
2018-09-05 15:54   ` David Howells
2018-09-05 15:54 ` [PATCH 03/11] UAPI: virtio_net: " David Howells
2018-09-05 16:54   ` Greg KH
2018-09-05 16:54   ` Greg KH
2018-09-05 17:15   ` David Howells
2018-09-05 17:15   ` David Howells
2018-09-05 17:35   ` Michael S. Tsirkin
2018-09-05 17:35   ` Michael S. Tsirkin
2018-09-06  7:09   ` David Howells
2018-09-06  7:09   ` David Howells
2018-09-06 14:36     ` Michael S. Tsirkin
2018-09-06 14:36     ` Michael S. Tsirkin
2018-09-05 15:54 ` David Howells
2018-09-05 15:55 ` [PATCH 04/11] UAPI: bcache: Fix use of embedded flexible array David Howells
2018-10-02 14:52   ` Jan Engelhardt
2018-10-09 15:41   ` David Howells
2018-10-09 16:54     ` Jan Engelhardt
2018-09-05 15:55 ` [PATCH 05/11] UAPI: coda: Don't use internal kernel structs in UAPI David Howells
2018-09-05 16:54   ` Jan Harkes
2018-09-05 17:12   ` Yann Droneaud
2018-09-05 17:28     ` Jan Harkes
2018-09-05 17:28       ` Jan Harkes
2018-09-05 17:24   ` David Howells
2018-09-06  7:13   ` David Howells
2018-09-06 11:52     ` Yann Droneaud
2018-09-06 12:16       ` Jan Harkes
2018-09-06 12:16         ` Jan Harkes
2018-09-06 14:53     ` David Howells
2018-09-05 15:55 ` [PATCH 06/11] UAPI: netfilter: Fix symbol collision issues David Howells
2018-09-05 15:55 ` [PATCH 07/11] UAPI: nilfs2: Fix use of undefined byteswapping functions David Howells
2018-09-05 22:20   ` Al Viro
2018-09-05 15:55 ` [PATCH 08/11] UAPI: sound: Fix use of u32 and co. in UAPI headers David Howells
2018-09-05 15:55   ` David Howells
2018-09-06  5:59   ` Takashi Sakamoto
2018-09-06  5:59     ` Takashi Sakamoto
2018-09-06  8:17   ` David Howells
2018-09-05 15:55 ` [PATCH 09/11] UAPI: ndctl: Fix g++-unsupported initialisation in headers David Howells
2018-09-05 15:55   ` David Howells
2018-09-05 15:55   ` David Howells
2018-09-05 15:55 ` [PATCH 10/11] UAPI: ndctl: Remove use of PAGE_SIZE David Howells
2018-09-05 15:55   ` David Howells
2018-09-05 15:55 ` [PATCH 11/11] UAPI: Check headers build for C++ David Howells
2018-09-05 16:55 ` [RFC] UAPI: Check headers by compiling all together as C++ Greg KH
2018-09-05 16:55 ` Greg KH [this message]
2018-09-05 16:55   ` Greg KH
2018-09-05 16:55   ` Greg KH
2018-09-05 16:55   ` Greg KH
2018-09-05 17:33   ` Yann Droneaud
2018-09-05 17:33     ` Yann Droneaud
2018-09-05 17:33     ` Yann Droneaud
2018-09-05 17:33     ` Yann Droneaud
2018-09-05 17:42     ` Michael S. Tsirkin
2018-09-05 17:42     ` Michael S. Tsirkin
2018-09-05 17:42       ` Michael S. Tsirkin
2018-09-05 17:42       ` Michael S. Tsirkin
2018-09-05 17:42       ` Michael S. Tsirkin
2018-09-05 17:42       ` Michael S. Tsirkin
2018-09-05 17:42       ` Michael S. Tsirkin
2018-09-06  7:12     ` Yann Droneaud
2018-09-06  7:12       ` Yann Droneaud
2018-09-06  7:12       ` Yann Droneaud
2018-09-06  7:12       ` Yann Droneaud
2018-09-05 19:22   ` Jan Engelhardt
2018-09-05 19:22   ` Jan Engelhardt
2018-09-05 19:22     ` Jan Engelhardt
2018-09-05 19:22     ` Jan Engelhardt
2018-09-05 19:22     ` Jan Engelhardt
2018-09-05 17:50 ` David Howells
2018-09-05 17:50 ` David Howells
2018-09-05 17:50   ` David Howells
  -- strict thread matches above, loose matches on Subject: below --
2018-09-06  9:18 David Howells
2018-09-06  9:18 ` David Howells
2018-09-06  9:18 ` David Howells
2018-09-06  9:18 ` David Howells
2018-09-06  9:18 ` David Howells
     [not found] ` <153622549721.14298.8116794954073122489.stgit-S6HVgzuS8uM4Awkfq6JHfwNdhmdF6hFW@public.gmane.org>
2018-09-06  9:18   ` [PATCH 01/11] UAPI: drm: Fix use of C++ keywords as structural members [ver #2] David Howells
2018-09-06  9:18     ` David Howells
2018-09-06  9:18 ` [PATCH 02/11] UAPI: keys: " David Howells
2018-09-06  9:18   ` David Howells
2018-09-06  9:18 ` [PATCH 03/11] UAPI: virtio_net: " David Howells
2018-09-06 15:02   ` Michael S. Tsirkin
2018-09-06 15:02   ` Michael S. Tsirkin
2018-09-06  9:18 ` David Howells
2018-09-06  9:18 ` [PATCH 04/11] UAPI: bcache: Fix use of embedded flexible array " David Howells
2018-09-06  9:18 ` [PATCH 05/11] UAPI: coda: Move kernel internals out of public view " David Howells
2018-09-06  9:18   ` David Howells
2018-09-06  9:19 ` [PATCH 06/11] coda: Move internal defs out of include/linux/ " David Howells
2018-09-06  9:19 ` [PATCH 07/11] UAPI: netfilter: Fix symbol collision issues " David Howells
2018-09-10 17:32   ` kbuild test robot
2018-09-10 17:32     ` kbuild test robot
2018-09-10 17:32     ` kbuild test robot
2018-09-28 13:07   ` [netfilter-core] " Pablo Neira Ayuso
2018-10-09 15:35   ` David Howells
2018-09-06  9:19 ` [PATCH 08/11] UAPI: nilfs2: Fix use of undefined byteswapping functions " David Howells
2018-09-06  9:19 ` [PATCH 09/11] UAPI: ndctl: Fix g++-unsupported initialisation in headers " David Howells
2018-09-06  9:19   ` David Howells
2018-09-06  9:19   ` David Howells
2018-09-25 20:22   ` Dan Williams
2018-09-25 20:22     ` Dan Williams
2018-09-25 20:22     ` Dan Williams
2018-09-06  9:19 ` [PATCH 10/11] UAPI: ndctl: Remove use of PAGE_SIZE " David Howells
2018-09-06  9:19   ` David Howells
2018-09-06  9:19   ` David Howells
2018-09-25 20:17   ` Dan Williams
2018-09-25 20:17     ` Dan Williams
2018-09-25 20:17     ` Dan Williams
2018-10-09 15:36   ` David Howells
2018-10-09 15:36     ` David Howells
2018-09-06  9:19 ` [PATCH 11/11] UAPI: Check headers build for C++ " David Howells
2018-09-10 16:26   ` kbuild test robot
2018-09-10 16:26     ` kbuild test robot
2018-09-10 16:26     ` kbuild test robot
2018-09-10 17:02   ` kbuild test robot
2018-09-10 17:02     ` kbuild test robot
2018-09-10 17:02     ` kbuild test robot
2018-09-14  9:10   ` Arnd Bergmann
2018-09-06  9:18 [RFC] UAPI: Check headers by compiling all together as C++ David Howells
2018-09-05 18:59 Alexey Dobriyan
2018-09-05 19:26 ` Greg KH
2018-09-05 19:31   ` Alexey Dobriyan
2018-09-05 22:22     ` Al Viro
2018-09-13 22:01       ` Alexey Dobriyan
2018-09-13 22:15         ` Al Viro
2018-09-13 23:27         ` David Howells
2018-09-13 23:42           ` Al Viro
2018-09-05 19:53 ` David Howells
2018-09-05 15:54 David Howells

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