On Thu, May 14, 2020 at 08:21:57PM +0200, Daniel Glöckner wrote:
> From: Edmund Henniges <eh@xxxxxxxxx>
>
> This implements the UDP variant of the fastboot protocol. The only way to
> start the service for now is to compile with CONFIG_FASTBOOT_NET_ON_BOOT.
> The service will bind to the network interface that provides the IPv4
> gateway.
>
> Sending an OKAY packet before performing a restart is necessary since
> contrary to USB the host will not notice when a UDP server disappears.
>
> Signed-off-by: Edmund Henniges <eh@xxxxxxxxx>
> Signed-off-by: Daniel Glöckner <dg@xxxxxxxxx>
> ---
> +
> +#ifdef CONFIG_FASTBOOT_NET_ON_BOOT
> +static struct fastboot_net *fastboot_net_obj;
> +
> +static int fastboot_on_boot(void)
> +{
> + struct fastboot_net *fbn;
> +
> + ifup_all(0);
> + fbn = fastboot_net_init(NULL);
> +
> + if (IS_ERR(fbn))
> + return PTR_ERR(fbn);
> +
> + fastboot_net_obj = fbn;
> + return 0;
> +}
> +
> +static void fastboot_net_exit(void)
> +{
> + if (fastboot_net_obj)
> + fastboot_net_free(fastboot_net_obj);
> +}
fastboot_net_obj won't be NULL here, the check should be if(!IS_ERR())
instead.
Sascha
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