Re: New "no-cfi indirect call!" build failure on 7.1-rc5

[Sean Christopherson]

On Mon, May 25, 2026, Calvin Owens wrote:
> Hello all,
> 
> I'm seeing build failures with the attached kconfig on 7.1-rc5:
> 
>     running 'make' '-skj32' 'oldconfig' 'tar-pkg' 'LLVM=/home/calvinow/llvm-22.1.5/bin/'
>     vmlinux.o: error: objtool: idt_do_interrupt_irqoff+0xe: no-cfi indirect call!
> 
> It bisects down to commit 0701c9e17bd903d95b2ddf7dd2e1d8be5027f331:
> 
>     Author:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
>     AuthorDate: Fri May 8 11:18:29 2026 +0200
>     Commit:     Thomas Gleixner <tglx@xxxxxxxxxx>
>     CommitDate: Tue May 19 20:25:51 2026 +0200
> 
>     x86/kvm/vmx: Move IRQ/NMI dispatch from KVM into x86 core
> 
> Nathan noticed it last week in -next:
> 
>     https://lore.kernel.org/all/20260520230621.GA706311@ax162/
> 
> You can reproduce my LLVM with this, in case it matters:
> https://github.com/jcalvinowens/kernel-testing/blob/master/scripts/build-llvm.sh

Peter is on it: https://lore.kernel.org/all/20260526090631.GA4149641@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx