netdev - RE: [PATCH v2 1/2] fs: Export __receive

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Message-ID: <20220816171509.98183-1-kuniyu@amazon.com>
Date:   Tue, 16 Aug 2022 10:15:09 -0700
From:   Kuniyuki Iwashima <kuniyu@...zon.com>
To:     <david.laight@...lab.com>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>,
        <netdev@...r.kernel.org>, <tkhai@...ru>, <viro@...iv.linux.org.uk>
Subject: RE: [PATCH v2 1/2] fs: Export __receive_fd()

From:   David Laight <David.Laight@...LAB.COM>
Date:   Tue, 16 Aug 2022 08:03:14 +0000
> From: Kirill Tkhai
> > Sent: 15 August 2022 22:15
> > 
> > This is needed to make receive_fd_user() available in modules, and it will be used in next patch.
> > 
> > Signed-off-by: Kirill Tkhai <tkhai@...ru>
> > ---
> > v2: New
> >  fs/file.c |    1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/fs/file.c b/fs/file.c
> > index 3bcc1ecc314a..e45d45f1dd45 100644
> > --- a/fs/file.c
> > +++ b/fs/file.c
> > @@ -1181,6 +1181,7 @@ int __receive_fd(struct file *file, int __user *ufd, unsigned int o_flags)
> >  	__receive_sock(file);
> >  	return new_fd;
> >  }
> > +EXPORT_SYMBOL_GPL(__receive_fd);
> 
> It doesn't seem right (to me) to be exporting a function
> with a __ prefix.

+1.
Now receive_fd() has inline and it's the problem.
Can we avoid this by moving receive_fd() in fs/file.c without inline and
exporting it?