linux-kernel - Re: [PATCH] KVM: arm64: fix __kvm_host_psci_cpu

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Date:   Wed, 26 Jul 2023 08:27:27 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Oliver Upton <oliver.upton@...ux.dev>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mostafa Saleh <smostafa@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        James Morse <james.morse@....com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Zenghui Yu <yuzenghui@...wei.com>,
        Fuad Tabba <tabba@...gle.com>,
        Ricardo Koller <ricarkol@...gle.com>,
        Quentin Perret <qperret@...gle.com>,
        Kalesh Singh <kaleshsingh@...gle.com>,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: arm64: fix __kvm_host_psci_cpu_entry() prototype

On Mon, 24 Jul 2023 13:18:42 +0100,
Arnd Bergmann <arnd@...nel.org> wrote:
> 
> From: Arnd Bergmann <arnd@...db.de>
> 
> The kvm_host_psci_cpu_entry() function was renamed in order to add a wrapper around
> it, but the prototype did not change, so now the missing-prototype warning came
> back in W=1 builds:
> 
> arch/arm64/kvm/hyp/nvhe/psci-relay.c:203:28: error: no previous prototype for function '__kvm_host_psci_cpu_entry' [-Werror,-Wmissing-prototypes]
> asmlinkage void __noreturn __kvm_host_psci_cpu_entry(bool is_cpu_on)
> 
> Fixes: dcf89d1111995 ("KVM: arm64: Add missing BTI instructions")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Acked-by: Marc Zyngier <maz@...nel.org>

	M.

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