Re: [PATCH 1/2] cifs: Move string length definitions to uapi

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On Thu, Jul 25, 2013 at 1:55 PM, Jeff Layton <jlayton@xxxxxxxxxx> wrote:
>
> On Thu, 25 Jul 2013 13:35:20 -0400
> scott.lovenberg@xxxxxxxxx wrote:
>
> > From: Scott Lovenberg <scott.lovenberg@xxxxxxxxx>
> > @@ -41,12 +42,8 @@
> >  #define MAX_SES_INFO 2
> >  #define MAX_TCON_INFO 4
> >
> > -#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1)
> > +#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + CIFS_MAX_SHARE_LEN + 1)
> >  #define MAX_SERVER_SIZE 15
>                 ^^^^^^^
> This looks wrong too. IIUC, that should be the max length of the
> "server" portion of the field. The fact that MAX_TREE_SIZE is pretty
> long is likely what papers over this...
>
> The userland helper uses NI_MAXHOST for this field, but that's not
> defined in the kernel. Perhaps this should be given a name like
> CIFS_NI_MAXHOST, and expanded to the same size as the mount helper uses
> (1025)?
>
> --
> Jeff Layton <jlayton@xxxxxxxxxx>

I didn't touch that because I really wasn't sure either.  Wouldn't we
want to make that 1024 and add 1 for the null terminator in-line to be
consistent?  Other than that, I'm on board with that idea.

-- 
Peace and Blessings,
-Scott.
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