linux-kernel - linux-next: build failure after merge of the nfsd tree

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Date:   Fri, 5 Oct 2018 10:01:33 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "J. Bruce Fields" <bfields@...ldses.org>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Trond Myklebust <trondmy@...il.com>
Subject: linux-next: build failure after merge of the nfsd tree

Hi all,

After merging the nfsd tree, today's linux-next build (x86_64
allmodconfig) failed like this:

fs/nfs/dns_resolve.c: In function 'nfs_dns_ent_put':
fs/nfs/dns_resolve.c:119:11: error: passing argument 1 of 'call_rcu_sched' from incompatible pointer type [-Werror=incompatible-pointer-types]
  call_rcu(item, nfs_dns_ent_free_rcu);
           ^~~~
In file included from include/linux/srcu.h:33,
                 from include/linux/notifier.h:16,
                 from include/linux/memory_hotplug.h:7,
                 from include/linux/mmzone.h:758,
                 from include/linux/gfp.h:6,
                 from include/linux/umh.h:4,
                 from include/linux/kmod.h:22,
                 from include/linux/module.h:13,
                 from fs/nfs/dns_resolve.c:36:
include/linux/rcupdate.h:59:38: note: expected 'struct callback_head *' but argument is of type 'struct nfs_dns_ent *'
 void call_rcu_sched(struct rcu_head *head, rcu_callback_t func);
                     ~~~~~~~~~~~~~~~~~^~~~

Caused by commit

  fd497f1e40d9 ("NFS: Lockless DNS lookups")

I have used the nfsd tree from next-20181004 for today.

-- 
Cheers,
Stephen Rothwell

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