On 16 October 2017 at 18:17, Patrick Delaunay <patrick.delaunay@st.com> wrote:
> the partition starting at 0x4400 is refused with overlap error:
>   $> gpt write mmc 0 "name=test,start=0x4400,size=0"
>   Writing GPT: Partition overlap
>   error!
>
> even if the 0x4400 is the first available offset for LBA35 with default
> value:
> - MBR=LBA1
> - GPT header=LBA2
> - PTE= 32 LBAs (128 entry), 3 to 34
>
> And the command to have one partition for all the disk failed also :
>   $> gpt write mmc 0 "name=test,size=0"
>
> After the patch :
>
>   $> gpt write mmc 0 "name=test,size=0"
>   Writing GPT: success!
>   $> part list mmc 0
>
>   Partition Map for MMC device 0  --   Partition Type: EFI
>
>   Part  Start LBA       End LBA         Name
>         Attributes
>         Type GUID
>         Partition GUID
>   1     0x00000022      0x01ce9fde      "test"
>         attrs:  0x0000000000000000
>         type:   ebd0a0a2-b9e5-4433-87c0-68b6b72699c7
>         type:   data
>         guid:   b4b84b8a-04e3-4000-0036-aff5c9c495b1
>
> And 0x22 = 34 LBA => offset = 0x4400 is accepted as expected
>
> Reviewed-by: Łukasz Majewski <lukma@denx.de>
> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
> ---
> gpt test are now OK
> ./test/py/test.py -k gpt --build
>
> test/py/tests/test_gpt.py .......
> => 7 passed, 228 deselected in 1.11 seconds
>
> Changes in v2: None
>
>  disk/part_efi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Simon Glass <sjg@chromium.org>