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

[Neil Horman]

On Wed, Nov 23, 2011 at 03:00:04PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the final tree, today's linux-next build (powerpc allnoconfig)
> failed like this:
> 
> In file included from include/linux/netdevice.h:53:0,
>                  from include/linux/icmpv6.h:173,
>                  from include/linux/ipv6.h:220,
>                  from include/net/ipv6.h:16,
>                  from include/linux/sunrpc/clnt.h:26,
>                  from include/linux/nfs_fs.h:50,
>                  from init/do_mounts.c:20:
> include/net/netprio_cgroup.h:23:29: error: field 'css' has incomplete type
> 
> And several more similar.
> 
> Caused by commit 5bc1421e34ec ("net: add network priority cgroup
> infrastructure (v4)").
> 
> I have added the following (minimal, but probably not optimal) patch for
> today:
> 
> From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> Date: Wed, 23 Nov 2011 14:49:49 +1100
> Subject: [PATCH] net: fix build error in network priority cgroup
>  infrastructure
> 
> Fixes this error:
> 
> In file included from include/linux/netdevice.h:53:0,
>                  from include/linux/icmpv6.h:173,
>                  from include/linux/ipv6.h:220,
>                  from include/net/ipv6.h:16,
>                  from include/linux/sunrpc/clnt.h:26,
>                  from include/linux/nfs_fs.h:50,
>                  from init/do_mounts.c:20:
> include/net/netprio_cgroup.h:23:29: error: field 'css' has incomplete type
> 
> When CONFIG_CGROUPS is not set.
> 
> Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
> ---
>  include/net/netprio_cgroup.h |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/include/net/netprio_cgroup.h b/include/net/netprio_cgroup.h
> index c432e99..da71b91 100644
> --- a/include/net/netprio_cgroup.h
> +++ b/include/net/netprio_cgroup.h
> @@ -20,7 +20,9 @@
>  
>  struct cgroup_netprio_state
>  {
> +#ifdef CONFIG_CGROUPS
>  	struct cgroup_subsys_state css;
> +#endif
>  	u32 prioidx;
>  };
>  
> -- 
> 1.7.7.3
> 
> -- 
> Cheers,
> Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
FYI, I've got a more appropriate fix building right now getting posted for the
net-next tree.  I'll cc you on it.

Neil



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