Re: [PATCH v2 5/5] of/fdt: only store the device node basename in full_name

From: Rob Herring
Date: Tue Oct 17 2017 - 17:47:00 EST


On Tue, Oct 17, 2017 at 4:32 PM, Alan Tull <atull@xxxxxxxxxx> wrote:
> On Mon, Aug 21, 2017 at 10:16 AM, Rob Herring <robh@xxxxxxxxxx> wrote:
>
> Hi Rob,
>
>> With dependencies on a statically allocated full path name converted to
>> use %pOF format specifier, we can store just the basename of node, and
>> the unflattening of the FDT can be simplified.
>>
>> This commit will affect the remaining users of full_name. After
>> analyzing these users, the remaining cases should only change some print
>> messages. The main users of full_name are providing a name for struct
>> resource. The resource names shouldn't be important other than providing
>> /proc/iomem names.
>>
>> We no longer distinguish between pre and post 0x10 dtb formats as either
>> a full path or basename will work. However, less than 0x10 formats have
>> been broken since the conversion to use libfdt (and no one has cared).
>> The conversion of the unflattening code to be non-recursive also broke
>> pre 0x10 formats as the populate_node function would return 0 in that
>> case.
>>
>> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
>> ---
>> v2:
>> - rebase to linux-next
>>
>> drivers/of/fdt.c | 69 +++++++++-----------------------------------------------
>> 1 file changed, 11 insertions(+), 58 deletions(-)
>
> I've just updated to the latest next branch and am finding problems
> applying overlays. Reverting this commit alleviates things. The
> errors I get are:
>
> [ 88.498704] OF: overlay: Failed to apply prop @/__symbols__/clk_0
> [ 88.513447] OF: overlay: apply failed '/__symbols__'
> [ 88.518423] create_overlay: Failed to create overlay (err=-12)

Frank's series with overlay updates should fix this.

Rob