x86: sparse warnings in pageattr.c
Adjust the definition of lookup_address to take an unsigned long
level argument. Adjust callers in xen/mmu.c that pass in a
dummy variable.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 8493c85..eb2a544 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -191,7 +191,7 @@
* or when the present bit is not set. Otherwise we would return a
* pointer to a nonexisting mapping.
*/
-pte_t *lookup_address(unsigned long address, int *level)
+pte_t *lookup_address(unsigned long address, unsigned int *level)
{
pgd_t *pgd = pgd_offset_k(address);
pud_t *pud;
@@ -255,7 +255,8 @@
unsigned long nextpage_addr, numpages, pmask, psize, flags;
pte_t new_pte, old_pte, *tmp;
pgprot_t old_prot, new_prot;
- int level, do_split = 1;
+ int do_split = 1;
+ unsigned int level;
spin_lock_irqsave(&pgd_lock, flags);
/*
@@ -406,7 +407,8 @@
static int __change_page_attr(unsigned long address, struct cpa_data *cpa)
{
- int level, do_split, err;
+ int do_split, err;
+ unsigned int level;
struct page *kpte_page;
pte_t *kpte;
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 45aa771..0144395 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -58,7 +58,7 @@
xmaddr_t arbitrary_virt_to_machine(unsigned long address)
{
- int level;
+ unsigned int level;
pte_t *pte = lookup_address(address, &level);
unsigned offset = address & PAGE_MASK;
@@ -71,7 +71,7 @@
{
pte_t *pte, ptev;
unsigned long address = (unsigned long)vaddr;
- int level;
+ unsigned int level;
pte = lookup_address(address, &level);
BUG_ON(pte == NULL);
@@ -86,7 +86,7 @@
{
pte_t *pte, ptev;
unsigned long address = (unsigned long)vaddr;
- int level;
+ unsigned int level;
pte = lookup_address(address, &level);
BUG_ON(pte == NULL);