[PATCH] fastboot net: add setter for global.fastboot.net.autostart

[Ahmad Fatoum]

On 13.08.21 10:32, Marco Felsch wrote:
> Without this change the only possible way to start the
> fastboot.net.autostart mechanism is by using the nv storage. Split
> fastboot_on_boot() into two functions:
>  - a globalvar setter fastboot_net_autostart_set() and
>  - a the globalvar init function fastboot_net_init_globalvar().
> This allows init scripts to start the autostart mechanism as well.
> 
> Signed-off-by: Marco Felsch <m.felsch at pengutronix.de>

Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>

> ---
>  net/fastboot.c | 19 +++++++++++++------
>  1 file changed, 13 insertions(+), 6 deletions(-)
> 
> diff --git a/net/fastboot.c b/net/fastboot.c
> index df388adc89..aa483f57a7 100644
> --- a/net/fastboot.c
> +++ b/net/fastboot.c
> @@ -547,14 +547,12 @@ fail_generic_init:
>  static struct fastboot_net *fastboot_net_obj;
>  static int fastboot_net_autostart;
>  
> -static int fastboot_on_boot(void)
> +static int fastboot_net_autostart_set(struct param_d *p, void * priv)
>  {
>  	struct fastboot_net *fbn;
> +	static bool started;
>  
> -	globalvar_add_simple_bool("fastboot.net.autostart",
> -				  &fastboot_net_autostart);
> -
> -	if (!fastboot_net_autostart)
> +	if (!fastboot_net_autostart || started)
>  		return 0;
>  
>  	ifup_all(0);
> @@ -564,16 +562,25 @@ static int fastboot_on_boot(void)
>  		return PTR_ERR(fbn);
>  
>  	fastboot_net_obj = fbn;
> +	started = true;
> +
>  	return 0;
>  }
>  
> +static int fastboot_net_init_globalvar(void)
> +{
> +	return globalvar_add_bool("fastboot.net.autostart",
> +				  fastboot_net_autostart_set,
> +				  &fastboot_net_autostart, NULL);
> +}
> +
>  static void fastboot_net_exit(void)
>  {
>  	if (fastboot_net_obj)
>  		fastboot_net_free(fastboot_net_obj);
>  }
>  
> -postenvironment_initcall(fastboot_on_boot);
> +postenvironment_initcall(fastboot_net_init_globalvar);
>  predevshutdown_exitcall(fastboot_net_exit);
>  
>  BAREBOX_MAGICVAR(global.fastboot.net.autostart,
> 


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