xen/arm: nr_lrs should be uint8_t

A later patch is going to use uint8_t to keep track of LRs.
Both GICv3 and GICv2 don't need any more than an uint8_t to keep track
of the number of LRs.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>

diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c
index 302c031d8e49bc1bffcf87026054cf792f2ed0a4..eeaf6851590272c9bd13127f2b0bfbb20f00435b 100644 (file)
--- a/xen/arch/arm/gic.c
+++ b/xen/arch/arm/gic.c
@@ -54,7 +54,7 @@ static struct {
 
 static DEFINE_PER_CPU(uint64_t, lr_mask);
 
-static unsigned nr_lrs;
+static uint8_t nr_lrs;
 #define lr_all_full() (this_cpu(lr_mask) == ((1 << nr_lrs) - 1))
 
 /* The GIC mapping of CPU interfaces does not necessarily match the