linux-kernel - [PATCH] KVM: PPC: e500: Rename jump labels in kvmppc_e500_tlb

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 12 Sep 2016 23:00:08 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     Paul Mackerras <paulus@...abs.org>, kvm@...r.kernel.org,
        kvm-ppc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc:     Alexander Graf <agraf@...e.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH] KVM: PPC: e500: Rename jump labels in kvmppc_e500_tlb_init()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Mon, 12 Sep 2016 22:33:53 +0200

Adjust jump labels according to the current Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---

Thanks that five update steps could be integrated into the branch "kvm-ppc-next"
of another source code repository.


> With this I get a compile error:
> 
>   CC      arch/powerpc/kvm/e500_mmu.o
> /home/paulus/kernel/kvm/arch/powerpc/kvm/e500_mmu.c: In function ‘kvmppc_e500_tlb_init’:
> /home/paulus/kernel/kvm/arch/powerpc/kvm/e500_mmu.c:910:3: error: label ‘err’ used but not defined
>    goto err;
>    ^
> /home/paulus/kernel/kvm/scripts/Makefile.build:289: recipe for target 'arch/powerpc/kvm/e500_mmu.o' failed
> make[2]: *** [arch/powerpc/kvm/e500_mmu.o] Error 1

I overlooked a single goto statement there somehow.

I hope that you like my second approach for this function implementation better.


 arch/powerpc/kvm/e500_mmu.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 0a2eeb1..ddbf8f0 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -907,7 +907,7 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
 	struct kvm_vcpu *vcpu = &vcpu_e500->vcpu;
 
 	if (e500_mmu_host_init(vcpu_e500))
-		goto err;
+		goto free_vcpu;
 
 	vcpu_e500->gtlb_params[0].entries = KVM_E500_TLB0_SIZE;
 	vcpu_e500->gtlb_params[1].entries = KVM_E500_TLB1_SIZE;
@@ -933,26 +933,25 @@ int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500)
 					  sizeof(struct tlbe_ref),
 					  GFP_KERNEL);
 	if (!vcpu_e500->gtlb_priv[0])
-		goto err;
+		goto free_vcpu;
 
 	vcpu_e500->gtlb_priv[1] = kcalloc(vcpu_e500->gtlb_params[1].entries,
 					  sizeof(struct tlbe_ref),
 					  GFP_KERNEL);
 	if (!vcpu_e500->gtlb_priv[1])
-		goto err;
+		goto free_vcpu;
 
 	vcpu_e500->g2h_tlb1_map = kcalloc(vcpu_e500->gtlb_params[1].entries,
 					  sizeof(*vcpu_e500->g2h_tlb1_map),
 					  GFP_KERNEL);
 	if (!vcpu_e500->g2h_tlb1_map)
-		goto err;
+		goto free_vcpu;
 
 	vcpu_mmu_init(vcpu, vcpu_e500->gtlb_params);
 
 	kvmppc_recalc_tlb1map_range(vcpu_e500);
 	return 0;
-
-err:
+ free_vcpu:
 	free_gtlb(vcpu_e500);
 	return -1;
 }
-- 
2.10.0