[PATCH v3 05/17] dfu: export dfu_list

[AKASHI Takahiro <takahiro.akashi@linaro.org>]

Heinrich,

On Fri, Jul 10, 2020 at 06:25:16PM +0200, Heinrich Schuchardt wrote:
> On 10.07.20 03:25, AKASHI Takahiro wrote:
> > This variable will be utilized to enumerate all dfu entities
> > for UEFI capsule firmware update in a later commit.
> >
> > Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> > ---
> >  drivers/dfu/dfu.c | 2 +-
> >  include/dfu.h     | 3 +++
> >  2 files changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
> > index a298c2c43999..501a60b34400 100644
> > --- a/drivers/dfu/dfu.c
> > +++ b/drivers/dfu/dfu.c
> > @@ -18,7 +18,7 @@
> >  #include <linux/list.h>
> >  #include <linux/compiler.h>
> >
> > -static LIST_HEAD(dfu_list);
> > +LIST_HEAD(dfu_list);
> >  static int dfu_alt_num;
> >  static int alt_num_cnt;
> >  static struct hash_algo *dfu_hash_algo;
> > diff --git a/include/dfu.h b/include/dfu.h
> > index 94b0a9e68317..e9af9503d685 100644
> > --- a/include/dfu.h
> > +++ b/include/dfu.h
> > @@ -158,6 +158,9 @@ struct dfu_entity {
> >  	unsigned int inited:1;
> >  };
> >
> > +struct list_head;
> > +extern struct list_head dfu_list;
> > +
> >  #ifdef CONFIG_SET_DFU_ALT_INFO
> >  /**
> >   * set_dfu_alt_info() - set dfu_alt_info environment variable
> >
> 
> Why would you need to export this list if the current implementation of
> the dfu command does not need to export it?

Because there is a new 'need', that is enumerating all the definitions
of dfu targets for users, i.e. UEFI subsystem.

> Please, use the existing DFU API functions instead of accessing a
> private member of the implementation.

There is no appropriate API at this moment.

-Takahiro Akashi

> Best regards
> 
> Heinrich
> 
>