linux-kernel - Re: [PATCH net-next] staging: irda: force to be a kernel module

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Message-ID: <20170829173129.GA11029@kroah.com>
Date:   Tue, 29 Aug 2017 19:31:29 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     David Miller <davem@...emloft.net>
Cc:     devel@...verdev.osuosl.org, netdev@...r.kernel.org,
        samuel@...tiz.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] staging: irda: force to be a kernel module

On Tue, Aug 29, 2017 at 07:26:08PM +0200, Greg KH wrote:
> On Tue, Aug 29, 2017 at 09:35:07AM -0700, David Miller wrote:
> > From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Date: Tue, 29 Aug 2017 11:14:17 +0200
> > 
> > > Now that the IRDA networking code has moved into drivers/staging/, the
> > > link order is changed for when it is initialized if built into the
> > > system.  This can cause a crash when initializing as the netfilter core
> > > hasn't been initialized yet.
> > > 
> > > So force the IRDA code to be built as a module, preventing the crash.
> > > 
> > > Reported-by: kernel test robot <fengguang.wu@...el.com>
> > > Signed-off-by: Greg Kroah-Hartman gregkh@...uxfoundation.org
> > 
> > I don't think this is reasonable.
> > 
> > IRDA being built in was broken by moving it to staging, so it's a
> > regression and we should find a way to fix it.
> 
> Hm, this is due to netlink coming before irda in the link order before
> this patch series.  I can't change the link order to put all of net/
> before drivers/, which would solve this, and I don't think I can put:
> 	obj-$(CONFIG_IRDA) += ../../drivers/staging/irda/net/
> in a networking Makefile, can I?  Does "../" even work in a Makefile
> like that?

Wait, I think that does work, let me go test this some more...

thanks,

greg k-h-