x86: fixes for lookup_address args

Signedness mismatches in level argument.
Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/efi_64.c

@@ -44,7 +44,7 @@ static void __init early_mapping_set_exec(unsigned long start,
 					  int executable)
 {
 	pte_t *kpte;
-	int level;
+	unsigned int level;
 
 	while (start < end) {
 		kpte = lookup_address((unsigned long)__va(start), &level);

arch/x86/mm/fault.c

@@ -382,7 +382,7 @@ static void show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 
 #ifdef CONFIG_X86_PAE
 	if (error_code & PF_INSTR) {
-		int level;
+		unsigned int level;
 		pte_t *pte = lookup_address(address, &level);
 
 		if (pte && pte_present(*pte) && !pte_exec(*pte))

arch/x86/mm/ioremap.c

@@ -75,7 +75,8 @@ static int ioremap_change_attr(unsigned long paddr, unsigned long size,
 {
 	unsigned long vaddr = (unsigned long)__va(paddr);
 	unsigned long nrpages = size >> PAGE_SHIFT;
-	int err, level;
+	unsigned int level;
+	int err;
 
 	/* No change for pages after the last mapping */
 	if ((paddr + size - 1) >= (max_pfn_mapped << PAGE_SHIFT))

arch/x86/mm/pageattr-test.c

@@ -42,7 +42,7 @@ static __init int print_split(struct split_state *s)
 	s->max_exec = 0;
 	for (i = 0; i < max_pfn_mapped; ) {
 		unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
-		int level;
+		unsigned int level;
 		pte_t *pte;
 
 		pte = lookup_address(addr, &level);
@@ -106,7 +106,7 @@ static __init int exercise_pageattr(void)
 	unsigned long *bm;
 	pte_t *pte, pte0;
 	int failed = 0;
-	int level;
+	unsigned int level;
 	int i, k;
 	int err;