fs: debugfs: add forward declaration for struct device type
fs: debugfs: add forward declaration for struct device type

The function debugfs_create_devm_seqfile() has a parameter of type
struct device pointer. This type needs to be forward declared to
avoid compilation issues on certain architectures and/or kernel
configurations. The function was introduced with:

  commit 98210b7f73f1db182bd9a558a031093cd166e907
  Author: Arend van Spriel <06447fbe43693466d3293d0b5eaeeb2efd3d7d3a@broadcom.com>
  Date:   Sun Nov 9 11:31:58 2014 +0100

     debugfs: add helper function to create device related seq_file

The reported build failure for sparc64 architecture was:

  make.cross ARCH=sparc64

All warnings:

   In file included from fs/debugfs/file.c:21:0:
   include/linux/debugfs.h:105:10: warning: 'struct device' declared
   inside parameter list
             void *data));
             ^

Reported-by: Fengguang Wu <24f7fe9d205c8a9f6ade0c2894e14303ca16087f@intel.com>
Signed-off-by: Arend van Spriel <06447fbe43693466d3293d0b5eaeeb2efd3d7d3a@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs