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Date: Mon, 2 Sep 2019 05:47:37 -0700
From: Christoph Hellwig <hch@infradead.org>
To: Gao Xiang <gaoxiang25@huawei.com>
Subject: Re: [PATCH 07/21] erofs: use erofs_inode naming
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Cc: devel@driverdev.osuosl.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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On Mon, Sep 02, 2019 at 08:13:06PM +0800, Gao Xiang wrote:
> Hi Christoph,
> 
> On Mon, Sep 02, 2019 at 05:10:21AM -0700, Christoph Hellwig wrote:
> > >  {
> > > -	struct erofs_vnode *vi = ptr;
> > > -
> > > -	inode_init_once(&vi->vfs_inode);
> > > +	inode_init_once(&((struct erofs_inode *)ptr)->vfs_inode);
> > 
> > Why doesn't this use EROFS_I?  This looks a little odd.
> 
> Thanks for your reply and suggestion...
> EROFS_I seems the revert direction ---> inode to erofs_inode
> here we need "erofs_inode" to inode...
> 
> Am I missing something?.... Hope not....

No, you are not.  But the cast still looks odd.  Why not:

	struct erofs_inode *ei = ptr;

	inode_init_once(&ei->vfs_inode);