On Thu, Oct 25, 2018 at 04:07:13PM -0700, Florian Fainelli wrote:

On 10/25/18 2:13 PM, Rob Herring wrote:

quoted

On Thu, Oct 25, 2018 at 12:30 PM Mike Rapoport [off-list ref] wrote:

quoted

On Thu, Oct 25, 2018 at 08:15:15AM -0500, Rob Herring wrote:

quoted

+Ard

On Thu, Oct 25, 2018 at 4:38 AM Mike Rapoport [off-list ref] wrote:

quoted

On Wed, Oct 24, 2018 at 02:55:17PM -0500, Rob Herring wrote:

quoted

On Wed, Oct 24, 2018 at 2:33 PM Florian Fainelli [off-list ref] wrote:

quoted

Hi all,

While investigating why ARM64 required a ton of objects to be rebuilt
when toggling CONFIG_DEV_BLK_INITRD, it became clear that this was
because we define __early_init_dt_declare_initrd() differently and we do
that in arch/arm64/include/asm/memory.h which gets included by a fair
amount of other header files, and translation units as well.

I think arm64 does not have to redefine __early_init_dt_declare_initrd().
Something like this might be just all we need (completely untested,
probably it won't even compile):

[ ... ]
 

FWIW, I am extracting the ARM implementation that parses the initrd
early command line parameter and the "setup" code doing the page
boundary alignment and memblock checking into a helper into lib/ that
other architectures can re-use. So far, this removes the need for
unicore32, arc and arm to duplicate essentially the same logic.

Presuming you are going to need asm-generic/initrd.h for that as well,
using override for __early_init_dt_declare_initrd in arm64 version of
initrd.h might be the simplest option.

-- 
Florian

-- 
Sincerely yours,
Mike.