port-mips/51384: src/sys/arch/mips/rmi/rmixl_intr.c:981: 32/64 bit mixup ?

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>Number:         51384
>Category:       port-mips
>Synopsis:       src/sys/arch/mips/rmi/rmixl_intr.c:981: 32/64 bit mixup ?
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-mips-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Aug 01 15:40:00 +0000 2016
>Originator:     David Binderman
>Release:        cvs dated 20160801
>Organization:
>Environment:
>Description:
src/sys/arch/mips/rmi/rmixl_intr.c:981]: (style) int result is assigned to long variable.

Source code is

   const uint64_t ipi_mask = 1 << (uintptr_t)arg;

Maybe better code

   const uint64_t ipi_mask = 1ULL << (uintptr_t)arg;

>How-To-Repeat:

>Fix: