IB/hfi: Protect against writable mmap

The device/port status is not intended to be changed from user space.
Prevent a user from mapping them as write or execute.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Ira Weiny 2017-04-09 10:17:24 -07:00 • committed by Doug Ledford
commit 1222026764