linux-kernel - Re: [PATCH] netfilter: conntrack: Force inlining of build check to prevent build failure

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Date:   Wed, 03 May 2017 09:55:16 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     geert@...ux-m68k.org
Cc:     fw@...len.de, pablo@...filter.org, kadlec@...ckhole.kfki.hu,
        arnd@...db.de, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netfilter: conntrack: Force inlining of build check to
 prevent build failure

From: Geert Uytterhoeven <geert@...ux-m68k.org>
Date: Wed,  3 May 2017 14:18:43 +0200

> If gcc (e.g. 4.1.2) decides not to inline total_extension_size(), the
> build will fail with:
> 
>     net/built-in.o: In function `nf_conntrack_init_start':
>     (.text+0x9baf6): undefined reference to `__compiletime_assert_1893'
> 
> or
> 
>     ERROR: "__compiletime_assert_1893" [net/netfilter/nf_conntrack.ko] undefined!
> 
> Fix this by forcing inlining of total_extension_size().
> 
> Fixes: b3a5db109e0670d6 ("netfilter: conntrack: use u8 for extension sizes again")
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>

Pablo, I'm going to apply this directly to my tree to fix this build
failure, I hope you don't mind.

Thanks.