Re: [PATCH 4/4] smb: client: improve DFS mount check

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Jul 13, 2023 at 06:48:00PM -0300, Paulo Alcantara wrote:
> Hi Greg,
> 
> Greg KH <gregkh@linuxfoundation.org> writes:
> 
> > On Wed, Jul 12, 2023 at 06:10:27PM -0300, Paulo Alcantara wrote:
> >> Paulo Alcantara <pc@manguebit.com> writes:
> >> 
> >> > Some servers may return error codes from REQ_GET_DFS_REFERRAL requests
> >> > that are unexpected by the client, so to make it easier, assume
> >> > non-DFS mounts when the client can't get the initial DFS referral of
> >> > @ctx->UNC in dfs_mount_share().
> >> >
> >> > Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
> >> > ---
> >> >  fs/smb/client/dfs.c | 5 +++--
> >> >  1 file changed, 3 insertions(+), 2 deletions(-)
> >> >
> >> > diff --git a/fs/smb/client/dfs.c b/fs/smb/client/dfs.c
> >> > index afbaef05a1f1..a7f2e0608adf 100644
> >> 
> >> Stable team, could you please pick this up as a fix for
> >> 
> >>         8e3554150d6c ("cifs: fix sharing of DFS connections")
> >> 
> >> The upstream commit is 5f2a0afa9890 ("smb: client: improve DFS mount check").
> >
> > Does not apply cleanly, can you provide a working backport?
> 
> Find attached backport of

> >From 435048ee0f477947d1d93f5a9b60b2d2df2b7554 Mon Sep 17 00:00:00 2001
> From: Paulo Alcantara <pc@manguebit.com>
> Date: Tue, 27 Jun 2023 21:24:50 -0300
> Subject: [PATCH stable v6.3] smb: client: improve DFS mount check

I'm confused, 6.3.y is end-of-life, and:

> 
> Some servers may return error codes from REQ_GET_DFS_REFERRAL requests
> that are unexpected by the client, so to make it easier, assume
> non-DFS mounts when the client can't get the initial DFS referral of
> @ctx->UNC in dfs_mount_share().
> 
> Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
> Signed-off-by: Steve French <stfrench@microsoft.com>
> ---
>  fs/cifs/dfs.c | 5 +++--

This file is not in the 6.4.y or any older kernel tree.

So what tree did you make this against, and where should it be applied
to?

totally confused,

greg k-h