From 088ec208d69474c784ed969206f6af323dea025b Mon Sep 17 00:00:00 2001 From: James Hogan Date: Wed, 16 Dec 2015 23:49:31 +0000 Subject: [PATCH] MIPS: KVM: Refactor added offsetof()s When calculating the offsets into the commpage for dynamically translated mtc0/mfc0 guest instructions, multiple offsetof()s are added together to find the offset of the specific register in the mips_coproc, within the commpage. Simplify each of these cases to a single offsetof() to find the offset of the specific register within the commpage. Signed-off-by: James Hogan Cc: Paolo Bonzini Cc: Gleb Natapov Cc: linux-mips@linux-mips.org Cc: kvm@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/11888/ Signed-off-by: Ralf Baechle --- arch/mips/kvm/dyntrans.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/arch/mips/kvm/dyntrans.c b/arch/mips/kvm/dyntrans.c index 521121bdebff..f1527a465c1b 100644 --- a/arch/mips/kvm/dyntrans.c +++ b/arch/mips/kvm/dyntrans.c @@ -86,10 +86,8 @@ int kvm_mips_trans_mfc0(uint32_t inst, uint32_t *opc, struct kvm_vcpu *vcpu) } else { mfc0_inst = LW_TEMPLATE; mfc0_inst |= ((rt & 0x1f) << 16); - mfc0_inst |= - offsetof(struct mips_coproc, - reg[rd][sel]) + offsetof(struct kvm_mips_commpage, - cop0); + mfc0_inst |= offsetof(struct kvm_mips_commpage, + cop0.reg[rd][sel]); } if (KVM_GUEST_KSEGX(opc) == KVM_GUEST_KSEG0) { @@ -123,9 +121,7 @@ int kvm_mips_trans_mtc0(uint32_t inst, uint32_t *opc, struct kvm_vcpu *vcpu) sel = inst & 0x7; mtc0_inst |= ((rt & 0x1f) << 16); - mtc0_inst |= - offsetof(struct mips_coproc, - reg[rd][sel]) + offsetof(struct kvm_mips_commpage, cop0); + mtc0_inst |= offsetof(struct kvm_mips_commpage, cop0.reg[rd][sel]); if (KVM_GUEST_KSEGX(opc) == KVM_GUEST_KSEG0) { kseg0_opc = -- 2.20.1