linux-kernel - Re: [GIT PULL] KVM changes for Linux 6.15-rc3

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Message-ID: <CAHk-=wg8VBjy=yrDUmFnvBKdo6eKNab6C=+FNjNZhX=z25QBpw@mail.gmail.com>
Date: Fri, 18 Apr 2025 09:13:22 -0700
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Paolo Bonzini <pbonzini@...hat.com>, Sean Christopherson <seanjc@...gle.com>
Cc: linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Subject: Re: [GIT PULL] KVM changes for Linux 6.15-rc3

On Fri, 18 Apr 2025 at 06:06, Paolo Bonzini <pbonzini@...hat.com> wrote:
>
>   https://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus

I pulled this, but then I unpulled it, because this doesn't work for
me AT ALL. I get

   ERROR: modpost: "kvm_arch_has_irq_bypass" [arch/x86/kvm/kvm-amd.ko]
undefined!

when building it. I assume it's due to the change in commit
73e0c567c24a ("KVM: SVM: Don't update IRTEs if APICv/AVIC is
disabled") but didn't check any closer.

I think it's literally just because that symbol isn't exported, but I
also suspect that the *right* fix is to make that function be an
inline function that doesn't *need* to be exported.

So I'm not going to add the trivial EXPORT_SYMBOL_GPL() line, since I
suspect the real fix is different.

               Linus