linux-kernel - Re: [PATCH] netlabel: Fix build problems when IPv6 is not enabled

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Date:	Tue, 29 Nov 2011 15:09:54 -0500
From:	Paul Moore <pmoore@...hat.com>
To:	netdev@...r.kernel.org
Cc:	rdunlap@...otime.net, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netlabel: Fix build problems when IPv6 is not enabled

On Tuesday, November 29, 2011 03:08:18 PM Paul Moore wrote:
> A recent fix to the the NetLabel code caused build problem with
> configurations that did not have IPv6 enabled; see below:
> 
>  netlabel_kapi.c: In function 'netlbl_cfg_unlbl_map_add':
>  netlabel_kapi.c:165:4:
>   error: implicit declaration of function 'netlbl_af6list_add'
> 
> This patch fixes this problem by making the IPv6 specific code conditional
> on the IPv6 configuration flags as we done in the rest of NetLabel and the
> network stack as a whole.  We have to move some variable declarations
> around as a result so things may not be quite as pretty, but at least it
> builds cleanly now.
> 
> Some additional IPv6 conditionals were added to the NetLabel code as well
> for the sake of consistency.
> 
> Reported-by: Randy Dunlap <rdunlap@...otime.net>
> Signed-off-by: Paul Moore <pmoore@...hat.com>
> ---
>  net/netlabel/netlabel_kapi.c |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)

Sorry, please disregard this patch; I sent the wrong version.

> diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
> index 3735297..e4bbe94 100644
> --- a/net/netlabel/netlabel_kapi.c
> +++ b/net/netlabel/netlabel_kapi.c
> @@ -148,6 +148,7 @@ int netlbl_cfg_unlbl_map_add(const char *domain,
>  			if (ret_val != 0)
>  				goto cfg_unlbl_map_add_failure;
>  			break;
> +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
>  		case AF_INET6:
>  			addr6 = addr;
>  			mask6 = mask;
> @@ -167,6 +168,7 @@ int netlbl_cfg_unlbl_map_add(const char *domain,
>  			if (ret_val != 0)
>  				goto cfg_unlbl_map_add_failure;
>  			break;
> +#endif /* IPv6 */
>  		default:
>  			goto cfg_unlbl_map_add_failure;
>  			break;
> @@ -225,9 +227,11 @@ int netlbl_cfg_unlbl_static_add(struct net *net,
>  	case AF_INET:
>  		addr_len = sizeof(struct in_addr);
>  		break;
> +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
>  	case AF_INET6:
>  		addr_len = sizeof(struct in6_addr);
>  		break;
> +#endif /* IPv6 */
>  	default:
>  		return -EPFNOSUPPORT;
>  	}
> @@ -266,9 +270,11 @@ int netlbl_cfg_unlbl_static_del(struct net *net,
>  	case AF_INET:
>  		addr_len = sizeof(struct in_addr);
>  		break;
> +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
>  	case AF_INET6:
>  		addr_len = sizeof(struct in6_addr);
>  		break;
> +#endif /* IPv6 */
>  	default:
>  		return -EPFNOSUPPORT;
>  	}
-- 
paul moore
virtualization @ redhat

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