Re: [build bug] SCTP, net/sctp/auth.c, ./net/rxrpc/ar-key.c failsto build

[Vlad Yasevich]

Ingo Molnar wrote:
> * Ingo Molnar <mingo@xxxxxxx> wrote:
>
> > a similar build bug happens with latest -git as well, with SCTP:
> >
> >  net/built-in.o: In function `rxrpc_destroy_s':
> >  ar-key.c:(.text+0xc5a2b): undefined reference to `crypto_free_tfm'
> >  net/built-in.o: In function `rxrpc_instantiate_s':
> >  ar-key.c:(.text+0xc5ed9): undefined reference to `crypto_alloc_base'

looks like rx-rpc should select CRYPTO as well..

> >  net/built-in.o: In function `sctp_endpoint_put':
> >  : undefined reference to `crypto_free_tfm'
> >  net/built-in.o: In function `sctp_inet_listen':
> >  : undefined reference to `crypto_free_tfm'
> >  net/built-in.o: In function `sctp_auth_destroy_hmacs':
> >  : undefined reference to `crypto_free_tfm'
> >  net/built-in.o: In function `sctp_auth_init_hmacs':
> >  : undefined reference to `crypto_alloc_base'
> >
> > this is a build regression over v2.6.23. config attached.
>
> the patch below fix it (or rather, works it around).

The patch is an OK workaround, but may not yield a working SCTP.

Let me see if I can do better..

-vlad

> 	Ingo
>
> ------------->
> Subject: SCTP: fix build bug
> From: Ingo Molnar <mingo@xxxxxxx>
>
> fix build bug:
>
>  net/built-in.o: In function `rxrpc_destroy_s':
>  ar-key.c:(.text+0xc5a2b): undefined reference to `crypto_free_tfm'
>  net/built-in.o: In function `rxrpc_instantiate_s':
>  ar-key.c:(.text+0xc5ed9): undefined reference to `crypto_alloc_base'
>  net/built-in.o: In function `sctp_endpoint_put':
>  : undefined reference to `crypto_free_tfm'
>  net/built-in.o: In function `sctp_inet_listen':
>  : undefined reference to `crypto_free_tfm'
>  net/built-in.o: In function `sctp_auth_destroy_hmacs':
>  : undefined reference to `crypto_free_tfm'
>  net/built-in.o: In function `sctp_auth_init_hmacs':
>  : undefined reference to `crypto_alloc_base'
>
> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
> ---
>  net/sctp/Kconfig |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux/net/sctp/Kconfig
> ===================================================================
> --- linux.orig/net/sctp/Kconfig
> +++ linux/net/sctp/Kconfig
> @@ -6,7 +6,7 @@ menuconfig IP_SCTP
>  	tristate "The SCTP Protocol (EXPERIMENTAL)"
>  	depends on INET && EXPERIMENTAL
>  	depends on IPV6 || IPV6=n
> -	select CRYPTO if SCTP_HMAC_SHA1 || SCTP_HMAC_MD5
> +	select CRYPTO
>  	select CRYPTO_HMAC if SCTP_HMAC_SHA1 || SCTP_HMAC_MD5
>  	select CRYPTO_SHA1 if SCTP_HMAC_SHA1
>  	select CRYPTO_MD5 if SCTP_HMAC_MD5

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