[PATCH] env: add prototypes for weak function

[Patrick DELAUNAY]

Hi,

> From: Wolfgang Denk <wd at denx.de>
> Sent: vendredi 24 janvier 2020 14:20
> 
> Dear Patrick,
> 
> In message <20200124124142.392-1-patrick.delaunay at st.com> you wrote:
> >
> > +/* allows to set ext4 interface */
> > +const char *env_ext4_get_intf(void);
> 
> Are you sure these comments are correct?
> 
> A "get interface" function is not supposed to set anything?
> 
> > +/* allows to set ext4 device and partition */ const char
> > +*env_ext4_get_dev_part(void);
> 
> A "get device and partition" function is not supposed to set anything?

Yes, I will update the comment.
 
> Best regards,
> 
> Wolfgang Denk
> 
> --
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de A
> Puritan is someone who is deathly afraid that  someone,  somewhere, is having
> fun.

Thanks,

Patrick