[Bug 275382] uninitialized memory use in __tcp_run_hpts()

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275382

            Bug ID: 275382
           Summary: uninitialized memory use in __tcp_run_hpts()
           Product: Base System
           Version: 14.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: transport@FreeBSD.org
          Reporter: markj@FreeBSD.org
                CC: glebius@FreeBSD.org, rrs@FreeBSD.org,
                    tuexen@freebsd.org

Coverity reports that tv.tv_sec is uninitialized when passed to tvtosbt(),
which returns the timeout used for the HPTS callout.  Presumably the intent is
to initialize it to 0?

I also see that in tcp_run_hpts(), "hpts" is declared as static, but that is
not thread safe and doesn't make sense to me.

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