KVM: Fix WARNINGs for 'sizeof(X)' instead of 'sizeof X' in kvm_main.c

There are many WARNINGs like this:
WARNING: sizeof tr should be sizeof(tr)
+	if (copy_from_user(&tr, argp, sizeof tr))

In kvm_main.c many places are using 'sizeof(X)', and the other places
are using 'sizeof X', while the kernel recommands to use 'sizeof(X)',
so this patch will replace all 'sizeof X' to 'sizeof(X)' to make them
consistent and at the same time to reduce the WARNINGs noise when we
are checking new patches.

Signed-off-by: Xiubo Li <lixiubo@cmss.chinamobile.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 07064dc..38738c2 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2197,7 +2197,7 @@
 		if (r)
 			goto out;
 		r = -EFAULT;
-		if (copy_to_user(argp, &mp_state, sizeof mp_state))
+		if (copy_to_user(argp, &mp_state, sizeof(mp_state)))
 			goto out;
 		r = 0;
 		break;
@@ -2206,7 +2206,7 @@
 		struct kvm_mp_state mp_state;
 
 		r = -EFAULT;
-		if (copy_from_user(&mp_state, argp, sizeof mp_state))
+		if (copy_from_user(&mp_state, argp, sizeof(mp_state)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state);
 		break;
@@ -2215,13 +2215,13 @@
 		struct kvm_translation tr;
 
 		r = -EFAULT;
-		if (copy_from_user(&tr, argp, sizeof tr))
+		if (copy_from_user(&tr, argp, sizeof(tr)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_translate(vcpu, &tr);
 		if (r)
 			goto out;
 		r = -EFAULT;
-		if (copy_to_user(argp, &tr, sizeof tr))
+		if (copy_to_user(argp, &tr, sizeof(tr)))
 			goto out;
 		r = 0;
 		break;
@@ -2230,7 +2230,7 @@
 		struct kvm_guest_debug dbg;
 
 		r = -EFAULT;
-		if (copy_from_user(&dbg, argp, sizeof dbg))
+		if (copy_from_user(&dbg, argp, sizeof(dbg)))
 			goto out;
 		r = kvm_arch_vcpu_ioctl_set_guest_debug(vcpu, &dbg);
 		break;
@@ -2244,14 +2244,14 @@
 		if (argp) {
 			r = -EFAULT;
 			if (copy_from_user(&kvm_sigmask, argp,
-					   sizeof kvm_sigmask))
+					   sizeof(kvm_sigmask)))
 				goto out;
 			r = -EINVAL;
-			if (kvm_sigmask.len != sizeof sigset)
+			if (kvm_sigmask.len != sizeof(sigset))
 				goto out;
 			r = -EFAULT;
 			if (copy_from_user(&sigset, sigmask_arg->sigset,
-					   sizeof sigset))
+					   sizeof(sigset)))
 				goto out;
 			p = &sigset;
 		}
@@ -2313,14 +2313,14 @@
 		if (argp) {
 			r = -EFAULT;
 			if (copy_from_user(&kvm_sigmask, argp,
-					   sizeof kvm_sigmask))
+					   sizeof(kvm_sigmask)))
 				goto out;
 			r = -EINVAL;
-			if (kvm_sigmask.len != sizeof csigset)
+			if (kvm_sigmask.len != sizeof(csigset))
 				goto out;
 			r = -EFAULT;
 			if (copy_from_user(&csigset, sigmask_arg->sigset,
-					   sizeof csigset))
+					   sizeof(csigset)))
 				goto out;
 			sigset_from_compat(&sigset, &csigset);
 			r = kvm_vcpu_ioctl_set_sigmask(vcpu, &sigset);
@@ -2516,7 +2516,7 @@
 
 		r = -EFAULT;
 		if (copy_from_user(&kvm_userspace_mem, argp,
-						sizeof kvm_userspace_mem))
+						sizeof(kvm_userspace_mem)))
 			goto out;
 
 		r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem);
@@ -2526,7 +2526,7 @@
 		struct kvm_dirty_log log;
 
 		r = -EFAULT;
-		if (copy_from_user(&log, argp, sizeof log))
+		if (copy_from_user(&log, argp, sizeof(log)))
 			goto out;
 		r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
 		break;
@@ -2535,7 +2535,7 @@
 	case KVM_REGISTER_COALESCED_MMIO: {
 		struct kvm_coalesced_mmio_zone zone;
 		r = -EFAULT;
-		if (copy_from_user(&zone, argp, sizeof zone))
+		if (copy_from_user(&zone, argp, sizeof(zone)))
 			goto out;
 		r = kvm_vm_ioctl_register_coalesced_mmio(kvm, &zone);
 		break;
@@ -2543,7 +2543,7 @@
 	case KVM_UNREGISTER_COALESCED_MMIO: {
 		struct kvm_coalesced_mmio_zone zone;
 		r = -EFAULT;
-		if (copy_from_user(&zone, argp, sizeof zone))
+		if (copy_from_user(&zone, argp, sizeof(zone)))
 			goto out;
 		r = kvm_vm_ioctl_unregister_coalesced_mmio(kvm, &zone);
 		break;
@@ -2553,7 +2553,7 @@
 		struct kvm_irqfd data;
 
 		r = -EFAULT;
-		if (copy_from_user(&data, argp, sizeof data))
+		if (copy_from_user(&data, argp, sizeof(data)))
 			goto out;
 		r = kvm_irqfd(kvm, &data);
 		break;
@@ -2562,7 +2562,7 @@
 		struct kvm_ioeventfd data;
 
 		r = -EFAULT;
-		if (copy_from_user(&data, argp, sizeof data))
+		if (copy_from_user(&data, argp, sizeof(data)))
 			goto out;
 		r = kvm_ioeventfd(kvm, &data);
 		break;
@@ -2583,7 +2583,7 @@
 		struct kvm_msi msi;
 
 		r = -EFAULT;
-		if (copy_from_user(&msi, argp, sizeof msi))
+		if (copy_from_user(&msi, argp, sizeof(msi)))
 			goto out;
 		r = kvm_send_userspace_msi(kvm, &msi);
 		break;
@@ -2595,7 +2595,7 @@
 		struct kvm_irq_level irq_event;
 
 		r = -EFAULT;
-		if (copy_from_user(&irq_event, argp, sizeof irq_event))
+		if (copy_from_user(&irq_event, argp, sizeof(irq_event)))
 			goto out;
 
 		r = kvm_vm_ioctl_irq_line(kvm, &irq_event,
@@ -2605,7 +2605,7 @@
 
 		r = -EFAULT;
 		if (ioctl == KVM_IRQ_LINE_STATUS) {
-			if (copy_to_user(argp, &irq_event, sizeof irq_event))
+			if (copy_to_user(argp, &irq_event, sizeof(irq_event)))
 				goto out;
 		}