[vfs:work.open 39/44] include/linux/file.h:24:38: warning: 'struct inode' declared inside parameter list

[kbuild test robot <lkp@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.open
head:   956b068e4bed1c13d0218ea7afaaa9ea0d345fc2
commit: 2e0cc644dea0b2f616879145cc0dd6c43373c475 [39/44] new wrapper: alloc_file_pseudo()
config: i386-randconfig-a0-201822 (attached as .config)
compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4
reproduce:
        git checkout 2e0cc644dea0b2f616879145cc0dd6c43373c475
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from include/linux/dma-buf.h:27:0,
                    from drivers/gpu/drm/drm_prime.c:30:
>> include/linux/file.h:24:38: warning: 'struct inode' declared inside parameter list
     const char *, fmode_t, const struct file_operations *);
                                         ^
>> include/linux/file.h:24:38: warning: its scope is only this definition or declaration, which is probably not what you want

vim +24 include/linux/file.h

    16	
    17	struct file_operations;
    18	struct vfsmount;
    19	struct dentry;
    20	struct path;
    21	extern struct file *alloc_file(const struct path *, fmode_t mode,
    22		const struct file_operations *fop);
    23	extern struct file *alloc_file_pseudo(struct inode *, struct vfsmount *,
  > 24		const char *, fmode_t, const struct file_operations *);
    25	

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