netdev - Re: [PATCH][IPV6]: Compilation fix for compat MCAST

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Date:	Wed, 30 Apr 2008 07:26:29 -0700
From:	David Stevens <dlstevens@...ibm.com>
To:	Pavel Emelyanov <xemul@...nvz.org>
Cc:	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH][IPV6]: Compilation fix for compat MCAST_MSFILTER sockopts.

Pavel,
Definitely should be in compat_ipv6_getsockopt() as the original was-- I 
hope
your patch doesn't do the same thing when applied!

Good catch!
                                                        +-DLS

Acked-by: David L Stevens <dlstevens@...ibm.com>

netdev-owner@...r.kernel.org wrote on 04/30/2008 06:36:31 AM:

> The last hunk from the commit dae50295 (ipv4/ipv6 compat: Fix SSM
> applications on 64bit kernels.) escaped from the compat_ipv6_setsockopt
> to the ipv6_getsockopt (I guess due to patch smartness wrt searching
> for context) thus breaking 32-bit and 64-bit-without-compat compilation.
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>
> 
> ---
> 
> diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
> index b4a26f2..56d55fe 100644
> --- a/net/ipv6/ipv6_sockglue.c
> +++ b/net/ipv6/ipv6_sockglue.c
> @@ -1089,10 +1089,6 @@ int ipv6_getsockopt(struct sock *sk, int level, 
int optname,
>     if(level != SOL_IPV6)
>        return -ENOPROTOOPT;
> 
> -   if (optname == MCAST_MSFILTER)
> -      return compat_mc_getsockopt(sk, level, optname, optval, optlen,
> -         ipv6_getsockopt);
> -
>     err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
>  #ifdef CONFIG_NETFILTER
>     /* we need to exclude all possible ENOPROTOOPTs except default case 
*/
> @@ -1131,6 +1127,10 @@ int compat_ipv6_getsockopt(struct sock *sk, int 
level, 
> int optname,
>     if (level != SOL_IPV6)
>        return -ENOPROTOOPT;
> 
> +   if (optname == MCAST_MSFILTER)
> +      return compat_mc_getsockopt(sk, level, optname, optval, optlen,
> +         ipv6_getsockopt);
> +
>     err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
>  #ifdef CONFIG_NETFILTER
>     /* we need to exclude all possible ENOPROTOOPTs except default case 
*/
> --
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