linux-kernel - [PATCH 2/2] KVM: PPC: Book3s HV: Remove unused function kvmppc_bad

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Date:   Mon, 11 Jul 2022 19:36:17 -0300
From:   Murilo Opsfelder Araujo <muriloo@...ux.ibm.com>
To:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Murilo Opsfelder Araujo <muriloo@...ux.ibm.com>,
        Juergen Gross <jgross@...e.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        Fabiano Rosas <farosas@...ux.ibm.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        mopsfelder@...il.com
Subject: [PATCH 2/2] KVM: PPC: Book3s HV: Remove unused function kvmppc_bad_interrupt

The commit fae5c9f3664b ("KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1
support from P7/8 path") removed the last reference to the function.

Fixes: fae5c9f3664b ("KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1 support from P7/8 path")
Signed-off-by: Murilo Opsfelder Araujo <muriloo@...ux.ibm.com>
---
 arch/powerpc/include/asm/kvm_book3s.h |  1 -
 arch/powerpc/kvm/book3s_hv_builtin.c  | 18 ------------------
 2 files changed, 19 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index ff1336ab4c47..bbf5e2c5fe09 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -280,7 +280,6 @@ extern void kvmppc_copy_to_svcpu(struct kvm_vcpu *vcpu);
 extern void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu);
 
 long kvmppc_read_intr(void);
-void kvmppc_bad_interrupt(struct pt_regs *regs);
 void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr);
 void kvmppc_inject_interrupt_hv(struct kvm_vcpu *vcpu, int vec, u64 srr1_flags);
 
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 88a8f6473c4e..c15c6faedce5 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -489,24 +489,6 @@ static long kvmppc_read_one_intr(bool *again)
 	return kvmppc_check_passthru(xisr, xirr, again);
 }
 
-void kvmppc_bad_interrupt(struct pt_regs *regs)
-{
-	/*
-	 * 100 could happen at any time, 200 can happen due to invalid real
-	 * address access for example (or any time due to a hardware problem).
-	 */
-	if (TRAP(regs) == 0x100) {
-		get_paca()->in_nmi++;
-		system_reset_exception(regs);
-		get_paca()->in_nmi--;
-	} else if (TRAP(regs) == 0x200) {
-		machine_check_exception(regs);
-	} else {
-		die("Bad interrupt in KVM entry/exit code", regs, SIGABRT);
-	}
-	panic("Bad KVM trap");
-}
-
 static void kvmppc_end_cede(struct kvm_vcpu *vcpu)
 {
 	vcpu->arch.ceded = 0;
-- 
2.36.1