[Bug 238641] netmap: Remove pointer printing in netmap_mem2.c

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238641

            Bug ID: 238641
           Summary: netmap: Remove pointer printing in netmap_mem2.c
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs at FreeBSD.org
          Reporter: huangfq.daxian at gmail.com

Created attachment 205162
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=205162&action=edit
The patch file

There is no need to print the address of ifp
every time when calling netmap_mem_pt_guest_ifp_del.
This will leak the address of ifp to user space.

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