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

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Message-ID: <20260205074643.7870A22-hca@linux.ibm.com>
Date: Thu, 5 Feb 2026 08:46:43 +0100
From: Heiko Carstens <hca@...ux.ibm.com>
To: Randy Dunlap <rdunlap@...radead.org>,
        Peter Zijlstra <peterz@...radead.org>
Cc: 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 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?