[PATCH v2 2/5] xen/x86: Define e820 entries counter as unsigned int

[Daniel Kiper <daniel.kiper@oracle.com>]

e820 entries counter is inherently an unsigned quantity
so define it as unsigned int.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
---
v2 - suggestions/fixes:
   - change e820 entries counter signedness
     (suggested by Andrew Cooper).
---
 xen/arch/x86/e820.c        |    8 ++++----
 xen/include/asm-x86/e820.h |    4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/xen/arch/x86/e820.c b/xen/arch/x86/e820.c
index 55fe0d6..bf84bae 100644
--- a/xen/arch/x86/e820.c
+++ b/xen/arch/x86/e820.c
@@ -89,9 +89,9 @@ static void __init add_memory_region(unsigned long long start,
     }
 } /* add_memory_region */
 
-static void __init print_e820_memory_map(struct e820entry *map, int entries)
+static void __init print_e820_memory_map(struct e820entry *map, unsigned int entries)
 {
-    int i;
+    unsigned int i;
 
     for (i = 0; i < entries; i++) {
         printk(" %016Lx - %016Lx ",
@@ -512,7 +512,7 @@ static void __init reserve_dmi_region(void)
 }
 
 static void __init machine_specific_memory_setup(
-    struct e820entry *raw, int *raw_nr)
+    struct e820entry *raw, unsigned int *raw_nr)
 {
     unsigned long mpt_limit, ro_mpt_limit;
     uint64_t top_of_ram, size;
@@ -695,7 +695,7 @@ int __init reserve_e820_ram(struct e820map *e820, uint64_t s, uint64_t e)
 }
 
 unsigned long __init init_e820(
-    const char *str, struct e820entry *raw, int *raw_nr)
+    const char *str, struct e820entry *raw, unsigned int *raw_nr)
 {
     if ( e820_verbose )
     {
diff --git a/xen/include/asm-x86/e820.h b/xen/include/asm-x86/e820.h
index 71a804c..d9ff4eb 100644
--- a/xen/include/asm-x86/e820.h
+++ b/xen/include/asm-x86/e820.h
@@ -30,12 +30,12 @@ extern int e820_change_range_type(
     uint32_t orig_type, uint32_t new_type);
 extern int e820_add_range(
     struct e820map *, uint64_t s, uint64_t e, uint32_t type);
-extern unsigned long init_e820(const char *, struct e820entry *, int *);
+extern unsigned long init_e820(const char *, struct e820entry *, unsigned int *);
 extern struct e820map e820;
 
 /* These symbols live in the boot trampoline. */
 extern struct e820entry e820map[];
-extern int e820nr;
+extern unsigned int e820nr;
 extern unsigned int lowmem_kb, highmem_kb;
 
 #define e820_raw bootsym(e820map)
-- 
1.7.10.4