[...]
> +static const char *fb_block_interface(void)
> +{
> + if (block_interface_override[0])
> + return block_interface_override;
> +
> + return config_opt_enabled(CONFIG_FASTBOOT_FLASH_BLOCK,
> + CONFIG_FASTBOOT_FLASH_BLOCK_INTERFACE_NAME,
> NULL);
> +}
> +
> +/**
> + * fb_block_device() - Resolve the block device number to use
> + *
> + * Returns the runtime override set via fastboot_block_set_target() if one
> + * is active, otherwise falls back to the build-time config default.
> + */
> +static int fb_block_device(void)
> +{
> + if (block_device_override >= 0)
> + return block_device_override;
> +
> + return config_opt_enabled(CONFIG_FASTBOOT_FLASH_BLOCK,
> + CONFIG_FASTBOOT_FLASH_BLOCK_DEVICE_ID, -1);
> +}
This config_opt_enabled check is not needed. drivers/fastboot/fb_block.c is
built only when CONFIG_FASTBOOT_FLASH_BLOCK is enabled. See
https://github.com/u-boot/u-boot/blob/211de43d0f954a00a490220c1aac9db298287c40/drivers/fastboot/Makefile#L6
Just returning CONFIG_FASTBOOT_FLASH_BLOCK_INTERFACE_NAME or
CONFIG_FASTBOOT_FLASH_BLOCK_DEVICE_ID would suffice.
-Varada
