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

[Rob Clark]

On Mon, Jul 24, 2017 at 2:31 PM, Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
> 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.
>

>From a quick look, it looks like it probably should.  I mostly sent
this patch so people would have a way to lsefi in grub to see what my
device-path patches where doing.

BR,
-R