Re: [PATCH 1/2] partitions: efi: register guid device parameter for disk GUID

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

On 30.06.22 14:24, Ahmad Fatoum wrote:
> We already register an nt_signature parameter for MBR partitions.
> Register an equivalent guid parameter for GPT partitions as well.
> This is less critical because disk GUID isn't used for root=
> Linux boot argument computation, as each partition has its own
> PARTUUID. It's still useful to allow shell scripts to check
> against it to detect e.g. a factory flash image.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>

Please dismiss. Premature emailing.

> ---
>  common/partitions/efi.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/common/partitions/efi.c b/common/partitions/efi.c
> index 848bed22610f..0f3f790539cd 100644
> --- a/common/partitions/efi.c
> +++ b/common/partitions/efi.c
> @@ -446,6 +446,7 @@ static void efi_partition(void *buf, struct block_device *blk,
>  	}
>  
>  	snprintf(blk->cdev.uuid, sizeof(blk->cdev.uuid), "%pUl", &gpt->disk_guid);
> +	dev_add_param_string_fixed(blk->dev, "guid", blk->cdev.uuid);
>  
>  	nb_part = le32_to_cpu(gpt->num_partition_entries);
>  


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