From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 14 Apr 2021 22:52:23 +0200
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: ipipe 5.4.107 / 5.4.93 build issues on arm32
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To: Greg Gallagher <greg@embeddedgreg.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>, xenomai@xenomai.org

On Wed, 14 Apr 2021 14:41:29 -0400
Greg Gallagher <greg@embeddedgreg.com> wrote:

> Ipipe 5.4 and xenomai 3.1 are compatible, this is my mistake, I=E2=80=99l=
l fix up
> and generate a new patch once the latency fix is done.
> FWIW, building straight from the ipipe-arm repo on the ipipe/5.4.y branch
> has been working for me.

I'm afraid the HEAD of ipipe/5.4.y as of commit
ffaf274ca4cc117c2dc3f9b2ee8ea6218b50995a doesn't build for me. I'm on
this commit + I have prepared the kernel using Xenomai 3.1
./scripts/prepare-kernel.sh --linux=3D/path/to/kernel + kernel configured
with sama5_defconfig.

And same build failure:

In file included from kernel/cpu.c:23:0:
./include/linux/stop_machine.h: In function =E2=80=98stop_machine_cpuslocke=
d=E2=80=99:
./include/linux/stop_machine.h:150:2: error: implicit declaration of functi=
on =E2=80=98hard_irq_enable=E2=80=99; did you mean =E2=80=98hard_irq_disabl=
e=E2=80=99? [-Werror=3Dimplicit-function-declaration]
  hard_irq_enable();
  ^~~~~~~~~~~~~~~
  hard_irq_disable

Best regards,

Thomas
--=20
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com