Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/mips/kvm/vz.c b/arch/mips/kvm/vz.c
index 7480503..dde2088 100644
--- a/arch/mips/kvm/vz.c
+++ b/arch/mips/kvm/vz.c
@@ -2454,10 +2454,10 @@
 		 * Root ASID dealiases guest GPA mappings in the root TLB.
 		 * Allocate new root ASID if needed.
 		 */
-		if (cpumask_test_and_clear_cpu(cpu, &kvm->arch.asid_flush_mask)
-		    || (cpu_context(cpu, gpa_mm) ^ asid_cache(cpu)) &
-						asid_version_mask(cpu))
-			get_new_mmu_context(gpa_mm, cpu);
+		if (cpumask_test_and_clear_cpu(cpu, &kvm->arch.asid_flush_mask))
+			get_new_mmu_context(gpa_mm);
+		else
+			check_mmu_context(gpa_mm);
 	}
 }