linux-kernel - Re: [PATCH] s390: remove kvm

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Message-ID: <20260205083947.GC232055@noisy.programming.kicks-ass.net>
Date: Thu, 5 Feb 2026 09:39:47 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Heiko Carstens <hca@...ux.ibm.com>
Cc: Randy Dunlap <rdunlap@...radead.org>, linux-kernel@...r.kernel.org,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>, linux-s390@...r.kernel.org
Subject: Re: [PATCH] s390: remove kvm_types.h from Kbuild

On Thu, Feb 05, 2026 at 08:46:43AM +0100, Heiko Carstens wrote:
> On Tue, Feb 03, 2026 at 10:42:04AM -0800, Randy Dunlap wrote:
> > kvm_types.h is mandatory in include/asm-generic/Kbuild so having it
> > in another Kbuild file causes a warning. Remove it from the arch/
> > Kbuild file to fix the warning.
> > 
> > ../scripts/Makefile.asm-headers:39: redundant generic-y found in ../arch/s390/include/asm/Kbuild: kvm_types.h
> > 
> > Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> > ---
> >  arch/s390/include/asm/Kbuild |    1 -
> >  1 file changed, 1 deletion(-)
> > 
> > --- linux-next-20260202.orig/arch/s390/include/asm/Kbuild
> > +++ linux-next-20260202/arch/s390/include/asm/Kbuild
> > @@ -5,6 +5,5 @@ generated-y += syscall_table.h
> >  generated-y += unistd_nr.h
> >  
> >  generic-y += asm-offsets.h
> > -generic-y += kvm_types.h
> >  generic-y += mcs_spinlock.h
> >  generic-y += mmzone.h
> 
> This should go via perf/core from the tip tree, since Peter's not-yet upstream
> commit 01122b89361e ("perf: Use EXPORT_SYMBOL_FOR_KVM() for the mediated
> APIs") adds the mandatory-y statement to include/asm-generic/Kbuild.
> 
> Peter?

Let me see if I can manage to apply a patch I don't have ;-)