Louis Tomlinson's Immigration Status Protected in Wake of Battery Arrest

Louis Tomlinson has no worries about his immigration status after getting arrested for allegedly roughing up a paparazzo and a woman at LAX ... even if he's convicted.

We've done some checking and Louis -- who has an entertainer visa -- will not be flagged or blocked from U.S. entry, because even if he's charged ... it will be a misdemeanor "simple" battery.

Under immigration law, Louis' status could be compromised if the crime involves moral turpitude or great bodily harm, but neither applies in this case.

There are countries -- like Canada -- that are super strict and sometimes block people who have even misdemeanors on their records.