On 11/30/2017 03:02 PM, Rob Clark wrote:
Otherwise with GUID partition types you would end up with things like:

   
.../HD(Part0,Sig6252c819-4624-4995-8d16-abc9cd5d4130)/HD(Part0,MBRType=02,SigType=02)

Signed-off-by: Rob Clark <[email protected]>
---
Reported by 'ykaukab' on IRC.

Not sure if someone already sent a similar patch.

  lib/efi_loader/efi_device_path_to_text.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/lib/efi_loader/efi_device_path_to_text.c 
b/lib/efi_loader/efi_device_path_to_text.c
index 62771338f0..3b703301ff 100644
--- a/lib/efi_loader/efi_device_path_to_text.c
+++ b/lib/efi_loader/efi_device_path_to_text.c
@@ -135,10 +135,12 @@ static char *dp_media(char *s, struct efi_device_path *dp)
                case SIG_TYPE_GUID:
                        s += sprintf(s, "/HD(Part%d,Sig%pUl)",

This is not the format defined in UEFI Spec 2.7:

HD(Partition, Type, Signature, Start, Size)
HD(Partition, Type, Signature) (Display only)

We should output something like:
/HD(1,MBR,0xA0021243,0x800,0x2EE00)

                                     hddp->partition_number, sig);
+                       break;
                default:
                        s += sprintf(s, "/HD(Part%d,MBRType=%02x,SigType=%02x)",
                                     hddp->partition_number, hddp->partmap_type,
                                     hddp->signature_type);

See above.

+                       break;

This line is superfluous at the end of a switch block.

Could you, please, rebase your patch on
[PATCH v3 04/18] efi_loader: fix efi_convert_device_node_to_text
https://lists.denx.de/pipermail/u-boot/2017-November/312523.html

Best regards

Heinrich

                }
break;

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