linux-kernel - Re: [PATCH] arm64/kvm: fix -Wimplicit-fallthrough warnings

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Date:   Fri, 2 Aug 2019 15:32:26 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Qian Cai <cai@....pw>
Cc:     james.morse@....com, julien.thierry.kdev@...il.com,
        suzuki.poulose@....com, christoffer.dall@...aro.org,
        drjones@...hat.com, linux-arm-kernel@...ts.infradead.org,
        kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/kvm: fix -Wimplicit-fallthrough warnings

On 02/08/2019 15:23, Qian Cai wrote:
> The commit a892819560c4 ("KVM: arm64: Prepare to handle deferred
> save/restore of 32-bit registers") introduced vcpu_write_spsr32() but
> seems forgot to add "break" between the switch statements and generates
> compilation warnings below. Also, adding a default statement as in
> vcpu_read_spsr32().

See
https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git/commit/?id=3d584a3c85d6fe2cf878f220d4ad7145e7f89218

The default statement is pretty pointless by construction.

Thanks,

	M.
-- 
Jazz is not dead, it just smells funny...