Hi Benjamin,

[auto build test ERROR on v4.6-rc1]
[also build test ERROR on next-20160401]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Benjamin-Coddington/Include-OFD-lock-owners-when-looking-up-state/20160401-233801
config: mips-jz4740 (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=mips 

Note: the linux-review/Benjamin-Coddington/Include-OFD-lock-owners-when-looking-up-state/20160401-233801 HEAD e6973cc5e04cb6af43dbba362969dbf6ddcf7740 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   fs/nfs/file.c: In function 'do_unlk':
>> fs/nfs/file.c:759:32: error: passing argument 1 of 'nfs_find_lock_context' from incompatible pointer type [-Werror=incompatible-pointer-types]
     l_ctx = nfs_find_lock_context(nfs_file_open_context(filp));
                                   ^
   In file included from fs/nfs/file.c:25:0:
   include/linux/nfs_fs.h:368:33: note: expected 'struct file *' but argument is of type 'struct nfs_open_context *'
    extern struct nfs_lock_context *nfs_find_lock_context(struct file *file);
                                    ^
   cc1: some warnings being treated as errors
--
   fs/nfs/direct.c: In function 'nfs_file_direct_read':
>> fs/nfs/direct.c:599:32: error: passing argument 1 of 'nfs_find_lock_context' from incompatible pointer type [-Werror=incompatible-pointer-types]
     l_ctx = nfs_find_lock_context(dreq->ctx);
                                   ^
   In file included from fs/nfs/direct.c:51:0:
   include/linux/nfs_fs.h:368:33: note: expected 'struct file *' but argument is of type 'struct nfs_open_context *'
    extern struct nfs_lock_context *nfs_find_lock_context(struct file *file);
                                    ^
   fs/nfs/direct.c: In function 'nfs_file_direct_write':
   fs/nfs/direct.c:1032:32: error: passing argument 1 of 'nfs_find_lock_context' from incompatible pointer type [-Werror=incompatible-pointer-types]
     l_ctx = nfs_find_lock_context(dreq->ctx);
                                   ^
   In file included from fs/nfs/direct.c:51:0:
   include/linux/nfs_fs.h:368:33: note: expected 'struct file *' but argument is of type 'struct nfs_open_context *'
    extern struct nfs_lock_context *nfs_find_lock_context(struct file *file);
                                    ^
   cc1: some warnings being treated as errors
--
   fs/nfs/pagelist.c: In function 'nfs_create_request':
>> fs/nfs/pagelist.c:332:32: error: passing argument 1 of 'nfs_find_lock_context' from incompatible pointer type [-Werror=incompatible-pointer-types]
     l_ctx = nfs_find_lock_context(ctx);
                                   ^
   In file included from fs/nfs/pagelist.c:20:0:
   include/linux/nfs_fs.h:368:33: note: expected 'struct file *' but argument is of type 'struct nfs_open_context *'
    extern struct nfs_lock_context *nfs_find_lock_context(struct file *file);
                                    ^
   cc1: some warnings being treated as errors

vim +/nfs_find_lock_context +759 fs/nfs/file.c

   753		/*
   754		 * Flush all pending writes before doing anything
   755		 * with locks..
   756		 */
   757		vfs_fsync(filp, 0);
   758	
 > 759		l_ctx = nfs_find_lock_context(nfs_file_open_context(filp));
   760		if (!IS_ERR(l_ctx)) {
   761			status = nfs_iocounter_wait(l_ctx);
   762			nfs_put_lock_context(l_ctx);

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