linux-kernel - Re: linux-next: build failure after merge of the final tree (net-next tree related)

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Date:	Tue, 4 Sep 2012 12:50:49 -0700
From:	Jerry Chu <hkchu@...gle.com>
To:	David Miller <davem@...emloft.net>
Cc:	sfr@...b.auug.org.au, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the final tree (net-next
 tree related)

On Tue, Sep 4, 2012 at 11:20 AM, David Miller <davem@...emloft.net> wrote:
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Tue, 4 Sep 2012 16:58:53 +1000
>
>> net/built-in.o: In function `tcp_fastopen_ctx_free':
>> tcp_fastopen.c:(.text+0x5cc5c): undefined reference to `crypto_destroy_tfm'
>> net/built-in.o: In function `tcp_fastopen_reset_cipher':
>> (.text+0x5cccc): undefined reference to `crypto_alloc_base'
>> net/built-in.o: In function `tcp_fastopen_reset_cipher':
>> (.text+0x5cd6c): undefined reference to `crypto_destroy_tfm'
>>
>> Presumably caused by commit 104671636897 ("tcp: TCP Fast Open Server -
>> header & support functions") from the net-next tree.  I assume that some
>> dependency on the CRYPTO infrastructure is missing.
>
> Thanks for the report, I've pushed the following change to net-next
> which should address this:
>
> --------------------
> [PATCH] net: Add INET dependency on aes crypto for the sake of TCP fastopen.
>
> Stephen Rothwell says:
>
> ====================
> After merging the final tree, today's linux-next build (powerpc
> ppc44x_defconfig) failed like this:
>
> net/built-in.o: In function `tcp_fastopen_ctx_free':
> tcp_fastopen.c:(.text+0x5cc5c): undefined reference to `crypto_destroy_tfm'
> net/built-in.o: In function `tcp_fastopen_reset_cipher':
> (.text+0x5cccc): undefined reference to `crypto_alloc_base'
> net/built-in.o: In function `tcp_fastopen_reset_cipher':
> (.text+0x5cd6c): undefined reference to `crypto_destroy_tfm'
>
> Presumably caused by commit 104671636897 ("tcp: TCP Fast Open Server -
> header & support functions") from the net-next tree.  I assume that some
> dependency on the CRYPTO infrastructure is missing.
>
> I have reverted commit 1bed966cc3bd ("Merge branch
> 'tcp_fastopen_server'") for today.
> ====================
>
> Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
> Signed-off-by: David S. Miller <davem@...emloft.net>
> ---
>  net/Kconfig |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/net/Kconfig b/net/Kconfig
> index 245831b..30b48f5 100644
> --- a/net/Kconfig
> +++ b/net/Kconfig
> @@ -52,6 +52,8 @@ source "net/iucv/Kconfig"
>
>  config INET
>         bool "TCP/IP networking"
> +       select CRYPTO
> +       select CRYPTO_AES
>         ---help---
>           These are the protocols used on the Internet and on most local
>           Ethernets. It is highly recommended to say Y here (this will enlarge
> --
> 1.7.7.6
>

Thanks for fixing this, David. (Sorry for missing the dependency.)

Jerry
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