From: Paul Menzel <pmenzel@molgen.mpg.de>
Date: Tue, 30 Jul 2019 08:53:10 +0000 (+0200)
Subject: KVM: PPC: Book3S: Mark expected switch fall-through
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ff7240ccf0cdab86762635840c6d62eec7147d18;p=linux.git

KVM: PPC: Book3S: Mark expected switch fall-through

Fix the error below triggered by `-Wimplicit-fallthrough`, by tagging
it as an expected fall-through.

    arch/powerpc/kvm/book3s_32_mmu.c: In function ‘kvmppc_mmu_book3s_32_xlate_pte’:
    arch/powerpc/kvm/book3s_32_mmu.c:241:21: error: this statement may fall through [-Werror=implicit-fallthrough=]
          pte->may_write = true;
          ~~~~~~~~~~~~~~~^~~~~~
    arch/powerpc/kvm/book3s_32_mmu.c:242:5: note: here
         case 3:
         ^~~~

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---

diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index 6539361778578..18f244aad7aaa 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -239,6 +239,7 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 				case 2:
 				case 6:
 					pte->may_write = true;
+					/* fall through */
 				case 3:
 				case 5:
 				case 7: