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    SubjectRe: [PATCH 5.13 345/380] KVM: arm64: vgic: move irq->get_input_level into an ops structure
    On Thu, 16 Sep 2021 17:01:42 +0100,
    Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
    >
    > From: Marc Zyngier <maz@kernel.org>
    >
    > [ Upstream commit db75f1a33f82ad332b6e139c5960e01999969d2c ]
    >
    > We already have the option to attach a callback to an interrupt
    > to retrieve its pending state. As we are planning to expand this
    > facility, move this callback into its own data structure.
    >
    > This will limit the size of individual interrupts as the ops
    > structures can be shared across multiple interrupts.
    >
    > Signed-off-by: Marc Zyngier <maz@kernel.org>
    > Signed-off-by: Sasha Levin <sashal@kernel.org>
    > ---
    > arch/arm64/kvm/arch_timer.c | 8 ++++++--
    > arch/arm64/kvm/vgic/vgic.c | 14 +++++++-------
    > include/kvm/arm_vgic.h | 28 +++++++++++++++++-----------
    > 3 files changed, 30 insertions(+), 20 deletions(-)

    As I replied to Sasha earlier, I don't see a good reason to backport
    this, as it doesn't improve anything on its own. Unless there is a
    compelling reason to get this backported, I'd rather see it dropped.

    Thanks,

    M.

    --
    Without deviation from the norm, progress is not possible.

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