module_param: make bool parameters really bool (drivers & misc)

module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 0fb448e..a457d21 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -32,7 +32,7 @@
 #include <linux/iommu.h>
 #include <linux/intel-iommu.h>
 
-static int allow_unsafe_assigned_interrupts;
+static bool allow_unsafe_assigned_interrupts;
 module_param_named(allow_unsafe_assigned_interrupts,
 		   allow_unsafe_assigned_interrupts, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(allow_unsafe_assigned_interrupts,