On Tue, Jan 15, 2013 at 09:43:07AM +0200, Mika Westerberg wrote:
> Commit c9a4962881 (nfsd: make client_lock per net) added
> lockdep_assert_held() call to function free_client(). However, if lockdep
> is disabled we get following compiler warning:
>
> fs/nfsd/nfs4state.c: In function ‘free_client’:
> fs/nfsd/nfs4state.c:1051:19: warning: unused variable ‘nn’ [-Wunused-variable]
>
> Fix this by marking the 'nn' with __maybe_unused.
I queued up fixes for these for 3.9 on the assumption it's better to
live with the compile errors a little longer than to submit unimportant
stuff for post-merge-window 3.8.
But if it means more people are going to waste time tripping over these,
then maybe they should just go in now--I don't know.
--b.
>
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
> ---
> fs/nfsd/nfs4state.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
> index ac8ed96..2d3011c 100644
> --- a/fs/nfsd/nfs4state.c
> +++ b/fs/nfsd/nfs4state.c
> @@ -1048,7 +1048,7 @@ static struct nfs4_client *alloc_client(struct xdr_netobj name)
> static inline void
> free_client(struct nfs4_client *clp)
> {
> - struct nfsd_net *nn = net_generic(clp->net, nfsd_net_id);
> + struct nfsd_net *nn __maybe_unused = net_generic(clp->net, nfsd_net_id);
>
> lockdep_assert_held(&nn->client_lock);
> while (!list_empty(&clp->cl_sessions)) {
> --
> 1.7.10.4
>
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