Re: Build regression since v6.6-rc1

Hello Frank,

On Thu, 21 Sept 2023 at 10:15, Frank Scheiner <[email protected]> wrote:
>
> Dear all,
>
> since v6.6-rc1 (actually introduced with [1], specific commit on [2])
> the kernel build for ia64 fails like that:
>
> ```
...
>
> Could one ([5]) or the other ([6]) please be included in v6.6 (or
> earlier) to "fix" the build problem for ia64?
>

Do you mean by "fix" that the proposed fixes are just workarounds and
not proper fixes? I don't think that is the case - the function in
question does nothing except apply a quirk for one specific x86
platform.

...
> [5]:
> https://lore.kernel.org/lkml/CAJZ5v0hnNK4O_HyinvTp01YxXR7V4vzpMhf85yW9M2=52-O2Fg@mail.gmail.com/
>
> [6]:
> https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=a0334bf78b95532cec54f56b53e8ae1bfe7e1ca1

Either Arnd, Rafael or myself should send a PR to Linus to merge [6]
as a fix, as it is already queued up in -next for v6.7.

Or perhaps Linus doesn't mind grabbing it from here:

------------8<--------------

The following changes since commit 0bb80ecc33a8fb5a682236443c1e740d5c917d1d:

  Linux 6.6-rc1 (2023-09-10 16:28:41 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
tags/fix-ia64-build-for-v6.6

for you to fetch changes up to a0334bf78b95532cec54f56b53e8ae1bfe7e1ca1:

  acpi: Provide ia64 dummy implementation of
acpi_proc_quirk_mwait_check() (2023-09-11 08:13:17 +0000)

----------------------------------------------------------------
Build fix for Itanium/ia64:

- provide dummy implementation of acpi_proc_quirk_mwait_check() which
  was moved out of generic code into arch/x86, breaking the ia64 build

----------------------------------------------------------------
Ard Biesheuvel (1):
      acpi: Provide ia64 dummy implementation of acpi_proc_quirk_mwait_check()

 arch/ia64/kernel/acpi.c | 4 ++++
 1 file changed, 4 insertions(+)