linux-kernel - Re: [PATCH] KVM: selftests: Treat %llx like %lx when formatting guest printf

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Date:   Wed,  4 Oct 2023 18:29:31 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Paolo Bonzini <pbonzini@...hat.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Aaron Lewis <aaronlewis@...gle.com>
Subject: Re: [PATCH] KVM: selftests: Treat %llx like %lx when formatting guest printf

On Thu, 21 Sep 2023 10:16:41 -0700, Sean Christopherson wrote:
> Treat %ll* formats the same as %l* formats when processing printfs from
> the guest so that using e.g. %llx instead of %lx generates the expected
> output.  Ideally, unexpected formats would generate compile-time warnings
> or errors, but it's not at all obvious how to actually accomplish that.
> 
> Alternatively, guest_vsnprintf() could assert on an unexpected format,
> but since the vast majority of printfs are for failed guest asserts,
> getting *something* printed is better than nothing.
> 
> [...]

Applied to kvm-x86 selftests, thanks!

[1/1] KVM: selftests: Treat %llx like %lx when formatting guest printf
      https://github.com/kvm-x86/linux/commit/b15e7490a1ef

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https://github.com/kvm-x86/linux/tree/next