arch/arm64/efi-stub.o rebuilding every time?

On Fri, Jul 04, 2014 at 07:36:17AM +0100, Matt Fleming wrote:

On Thu, 2014-07-03 at 16:16 +0200, Ard Biesheuvel wrote:

quoted

On 3 July 2014 16:13, Will Deacon [off-list ref] wrote:

quoted

Hi guys,

If I build an arm64 kernel, then simply hit make again without changing
anything, I find that efi-stub.o is rebuilt every time (with an annoying
warning too, but I think you already know about that):

Yep, I had noticed that as well. The reason is that it depends on
generated header files, which it shouldn't. There's already a patch
queued in Matt Fleming's tree for this:
https://git.kernel.org/cgit/linux/kernel/git/mfleming/efi.git/commit/?h=next&id=86b2eb8cdffda7eef07b1d6e5464491df1e86ee9

It sounds like that commit should actually be put into my 'urgent'
branch and sent to tip asap instead of being queued up for the next
merge window.

Objections?

Sounds good to me. You can also add my ack, if you like:

  Acked-by: Will Deacon [off-list ref]

Will