Re: [PATCH v5 0/8] Generic IRQ entry/exit support for powerpc

[Michal Suchánek]

On Mon, Apr 27, 2026 at 05:57:34PM +0530, Mukesh Kumar Chaurasiya (IBM) wrote:
> Adding support for the generic irq entry/exit handling for PowerPC. The
> goal is to bring PowerPC in line with other architectures that already
> use the common irq entry infrastructure, reducing duplicated code and
> making it easier to share future changes in entry/exit paths.
> 

Hello,

applying these patches on top of Linux 6.12 causes seccomp to return
different error (ENNOSYS instead of EPERM) causing some seccomp tests to
fail.

A minimal reporoducer is

podman run --rm --security-opt seccomp=<(echo '{"defaultAction":"SCMP_ACT_ALLOW","syscalls":[{"names":["mkdir"],"action":"SCMP_ACT_ERRNO"}]}') docker.io/library/alpine mkdir /tmp/test

This should produce 'Operation not permitted' but produces
'Function not implemented'.

Can you have a look?

Thanks

Michal

See also https://bugzilla.suse.com/show_bug.cgi?id=1268620