Emit the function name not the address when possible.
builtin_return_address() gives an address.  When building
a kernel with CONFIG_KALLSYMS, emit the actual function
name not the address.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
 #ifdef CONFIG_DEBUG_USER
        if (flags & debug)
                printk(KERN_DEBUG
-                      "NWFPE: %s[%d] takes exception %08x at %p from %08lx\n",
+                      "NWFPE: %s[%d] takes exception %08x at %pf from %08lx\n",
                       current->comm, current->pid, flags,
                       __builtin_return_address(0), GET_USERREG()->ARM_pc);
 #endif