[PATCH v3 07/12] KVM: arm64: VHE: Mark __hyp_call_panic __noreturn - Pierre-Clément Tosi

From: "Pierre-Clément Tosi" <ptosi@google.com>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	 kvm@vger.kernel.org
Cc: "Pierre-Clément Tosi" <ptosi@google.com>,
	"Marc Zyngier" <maz@kernel.org>,
	"Oliver Upton" <oliver.upton@linux.dev>,
	"Suzuki K Poulose" <suzuki.poulose@arm.com>,
	"Vincent Donnefort" <vdonnefort@google.com>
Subject: [PATCH v3 07/12] KVM: arm64: VHE: Mark __hyp_call_panic __noreturn
Date: Fri, 10 May 2024 12:26:36 +0100	[thread overview]
Message-ID: <20240510112645.3625702-8-ptosi@google.com> (raw)
In-Reply-To: <20240510112645.3625702-1-ptosi@google.com>

Given that the sole purpose of __hyp_call_panic() is to call panic(), a
__noreturn function, give it the __noreturn attribute, removing the need
for its caller to use unreachable().

Signed-off-by: Pierre-Clément Tosi <ptosi@google.com>
---
 arch/arm64/kvm/hyp/vhe/switch.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/hyp/vhe/switch.c b/arch/arm64/kvm/hyp/vhe/switch.c
index 1581df6aec87..9db04a286398 100644
--- a/arch/arm64/kvm/hyp/vhe/switch.c
+++ b/arch/arm64/kvm/hyp/vhe/switch.c
@@ -301,7 +301,7 @@ int __kvm_vcpu_run(struct kvm_vcpu *vcpu)
 	return ret;
 }
 
-static void __hyp_call_panic(u64 spsr, u64 elr, u64 par)
+static void __noreturn __hyp_call_panic(u64 spsr, u64 elr, u64 par)
 {
 	struct kvm_cpu_context *host_ctxt;
 	struct kvm_vcpu *vcpu;
@@ -326,7 +326,6 @@ void __noreturn hyp_panic(void)
 	u64 par = read_sysreg_par();
 
 	__hyp_call_panic(spsr, elr, par);
-	unreachable();
 }
 
 asmlinkage void kvm_unexpected_el2_exception(void)
-- 
2.45.0.118.g7fe29c98d7-goog


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