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KVM: arm64: Refactor kvm_arm_num_regs() for easier maintenance

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kvm_arm_num_regs() adds together various partial register counts in
a freeform sum expression, which makes it harder than necessary to
read diffs that add, modify or remove a single term in the sum
(which is expected to the common case under maintenance).

This patch refactors the code to add the term one per line, for
maximum readability.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: zhang.lei <zhang.lei@jp.fujitsu.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
This commit is contained in:
Dave Martin 2018-09-28 14:39:07 +01:00 committed by Marc Zyngier
parent 38abf22e12
commit 7aa92cf318
1 changed files with 8 additions and 2 deletions
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10
arch/arm64/kvm/guest.c
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@ -258,8 +258,14 @@ static int get_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
*/
unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu)
{
return num_core_regs() + kvm_arm_num_sys_reg_descs(vcpu)
+ kvm_arm_get_fw_num_regs(vcpu) + NUM_TIMER_REGS;
unsigned long res = 0;
res += num_core_regs();
res += kvm_arm_num_sys_reg_descs(vcpu);
res += kvm_arm_get_fw_num_regs(vcpu);
res += NUM_TIMER_REGS;
return res;
}
/**