[U-Boot] efi_loader: workaround for grub lsefi bug

[Heinrich Schuchardt]

On 07/20/2017 01:59 PM, Rob Clark wrote:
> Patch has also been sent to fix grub to not ignore the error returned
> and treat protocol_buffer_count as valid.  But that that might take a
> while to trickle into distro's, so this workaround might be useful.
> 
> Signed-off-by: Rob Clark <robdclark at gmail.com>
> ---
>  lib/efi_loader/efi_boottime.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
> index 27e51a253f..a45de39919 100644
> --- a/lib/efi_loader/efi_boottime.c
> +++ b/lib/efi_loader/efi_boottime.c
> @@ -637,6 +637,7 @@ static efi_status_t EFIAPI efi_protocols_per_handle(void *handle,
>  {
>  	EFI_ENTRY("%p, %p, %p", handle, protocol_buffer,
>  		  protocol_buffer_count);
> +	*protocol_buffer_count = 0;
>  	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
>  }
>  
> 

NAK

We already have this patch waiting to correctly implement
ProtocolsPerHandle:

efi_loader: implement ProtocolsPerHandle
https://patchwork.ozlabs.org/patch/787995/

@Rob: Could you, please, test if this patch solves your problem.

Regards

Heinrich