[Bug 111] There maybe some risks to printf the addr of the map page

[bugzilla@dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=111

            Bug ID: 111
           Summary: There maybe some risks to printf  the addr of the map
                    page
           Product: DPDK
           Version: 17.11
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: andy01011501@163.com
  Target Milestone: ---

In the funtion pci_unmap_resource,the requested_addr will be print and this may
cause some risks like the code below:

void pci_unmap_resource(void *requested_addr, size_t size)
{
        if (requested_addr == NULL)
                return;

        /* Unmap the PCI memory resource of device */
        if (munmap(requested_addr, size)) {
                RTE_LOG(ERR, EAL, "%s(): cannot munmap(%p, 0x%lx): %s\n",
                        __func__, requested_addr, (unsigned long)size,
                        strerror(errno));
        } else
                RTE_LOG(DEBUG, EAL, "  PCI memory unmapped at %p\n",
                                requested_addr);
}

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