KVM: x86: Clean up: remove redundant bool conversions

As test_bit() returns bool, explicitly converting result to bool is
unnecessary. Get rid of '!!'.

No functional change intended.

Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://lore.kernel.org/r/20230605200158.118109-1-mhal@rbox.co
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: mmhal

arch/x86/kvm/svm/svm.c

@@ -752,7 +752,7 @@ static bool msr_write_intercepted(struct kvm_vcpu *vcpu, u32 msr)
 
 	BUG_ON(offset == MSR_INVALID);
 
-	return !!test_bit(bit_write,  &tmp);
+	return test_bit(bit_write, &tmp);
 }
 
 static void set_msr_interception_bitmap(struct kvm_vcpu *vcpu, u32 *msrpm,

arch/x86/kvm/x86.c

@@ -1805,7 +1805,7 @@ bool kvm_msr_allowed(struct kvm_vcpu *vcpu, u32 index, u32 type)
 		unsigned long *bitmap = ranges[i].bitmap;
 
 		if ((index >= start) && (index < end) && (flags & type)) {
-			allowed = !!test_bit(index - start, bitmap);
+			allowed = test_bit(index - start, bitmap);
 			break;
 		}
 	}