x86: clean up arch/x86/mm/pageattr-test.c

fix 15 checkpatch warnings.
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

arch/x86/mm/pageattr-test.c

@@ -4,36 +4,36 @@
  * Clears the global bit on random pages in the direct mapping, then reverts
  * and compares page tables forwards and afterwards.
  */
-
-#include <linux/mm.h>
+#include <linux/bootmem.h>
 #include <linux/random.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/bootmem.h>
+#include <linux/mm.h>
+
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>
 #include <asm/kdebug.h>
 
 enum {
-	NTEST = 400,
+	NTEST			= 400,
 #ifdef CONFIG_X86_64
-	LOWEST_LEVEL = 4,
-	LPS = (1 << PMD_SHIFT),
+	LOWEST_LEVEL		= 4,
+	LPS			= (1 << PMD_SHIFT),
 #elif defined(CONFIG_X86_PAE)
-	LOWEST_LEVEL = 3,
-	LPS = (1 << PMD_SHIFT),
+	LOWEST_LEVEL		= 3,
+	LPS			= (1 << PMD_SHIFT),
 #else
-	LOWEST_LEVEL = 3, /* lookup_address lies here */
-	LPS = (1 << 22),
+	LOWEST_LEVEL		= 3, /* lookup_address lies here */
+	LPS			= (1 << 22),
 #endif
-	GPS = (1<<30)
+	GPS			= (1<<30)
 };
 
 #ifdef CONFIG_X86_64
-#include <asm/proto.h>
-#define max_mapped end_pfn_map
+# include <asm/proto.h>
+# define max_mapped		end_pfn_map
 #else
-#define max_mapped max_low_pfn
+# define max_mapped		max_low_pfn
 #endif
 
 struct split_state {
@@ -43,23 +43,24 @@ struct split_state {
 
 static __init int print_split(struct split_state *s)
 {
-	int printed = 0;
 	long i, expected, missed = 0;
+	int printed = 0;
 	int err = 0;
 
 	s->lpg = s->gpg = s->spg = s->exec = 0;
 	s->min_exec = ~0UL;
 	s->max_exec = 0;
 	for (i = 0; i < max_mapped; ) {
+		unsigned long addr = (unsigned long)__va(i << PAGE_SHIFT);
 		int level;
 		pte_t *pte;
-		unsigned long adr = (unsigned long)__va(i << PAGE_SHIFT);
 
-		pte = lookup_address(adr, &level);
+		pte = lookup_address(addr, &level);
 		if (!pte) {
 			if (!printed) {
-				dump_pagetable(adr);
-				printk("CPA %lx no pte level %d\n", adr, level);
+				dump_pagetable(addr);
+				printk(KERN_INFO "CPA %lx no pte level %d\n",
+					addr, level);
 				printed = 1;
 			}
 			missed++;
@@ -72,8 +73,9 @@ static __init int print_split(struct split_state *s)
 			i += GPS/PAGE_SIZE;
 		} else if (level != LOWEST_LEVEL) {
 			if (!(pte_val(*pte) & _PAGE_PSE)) {
-				printk("%lx level %d but not PSE %Lx\n",
-					adr, level, (u64)pte_val(*pte));
+				printk(KERN_ERR
+					"%lx level %d but not PSE %Lx\n",
+					addr, level, (u64)pte_val(*pte));
 				err = 1;
 			}
 			s->lpg++;
@@ -84,18 +86,20 @@ static __init int print_split(struct split_state *s)
 		}
 		if (!(pte_val(*pte) & _PAGE_NX)) {
 			s->exec++;
-			if (adr < s->min_exec)
-				s->min_exec = adr;
-			if (adr > s->max_exec)
-				s->max_exec = adr;
+			if (addr < s->min_exec)
+				s->min_exec = addr;
+			if (addr > s->max_exec)
+				s->max_exec = addr;
 		}
 	}
-	printk("CPA mapping 4k %lu large %lu gb %lu x %lu[%lx-%lx] miss %lu\n",
+	printk(KERN_INFO
+		"CPA mapping 4k %lu large %lu gb %lu x %lu[%lx-%lx] miss %lu\n",
 		s->spg, s->lpg, s->gpg, s->exec,
 		s->min_exec != ~0UL ? s->min_exec : 0, s->max_exec, missed);
+
 	expected = (s->gpg*GPS + s->lpg*LPS)/PAGE_SIZE + s->spg + missed;
 	if (expected != i) {
-		printk("CPA max_mapped %lu but expected %lu\n",
+		printk(KERN_ERR "CPA max_mapped %lu but expected %lu\n",
 			max_mapped, expected);
 		return 1;
 	}
@@ -105,56 +109,62 @@ static __init int print_split(struct split_state *s)
 static __init int state_same(struct split_state *a, struct split_state *b)
 {
 	return a->lpg == b->lpg && a->gpg == b->gpg && a->spg == b->spg &&
-			a->exec == b->exec;
+		a->exec == b->exec;
 }
 
-static unsigned long addr[NTEST] __initdata;
-static unsigned len[NTEST] __initdata;
+static unsigned long __initdata addr[NTEST];
+static unsigned int __initdata len[NTEST];
 
 /* Change the global bit on random pages in the direct mapping */
 static __init int exercise_pageattr(void)
 {
-	int i, k;
+	struct split_state sa, sb, sc;
+	unsigned long *bm;
 	pte_t *pte, pte0;
+	int failed = 0;
 	int level;
+	int i, k;
 	int err;
-	struct split_state sa, sb, sc;
-	int failed = 0;
-	unsigned long *bm;
 
-	printk("CPA exercising pageattr\n");
+	printk(KERN_INFO "CPA exercising pageattr\n");
 
 	bm = vmalloc((max_mapped + 7) / 8);
 	if (!bm) {
-		printk("CPA Cannot vmalloc bitmap\n");
+		printk(KERN_ERR "CPA Cannot vmalloc bitmap\n");
 		return -ENOMEM;
 	}
 	memset(bm, 0, (max_mapped + 7) / 8);
 
 	failed += print_split(&sa);
 	srandom32(100);
+
 	for (i = 0; i < NTEST; i++) {
 		unsigned long pfn = random32() % max_mapped;
+
 		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
 		len[i] = random32() % 100;
 		len[i] = min_t(unsigned long, len[i], max_mapped - pfn - 1);
+
 		if (len[i] == 0)
 			len[i] = 1;
 
 		pte = NULL;
 		pte0 = pfn_pte(0, __pgprot(0)); /* shut gcc up */
+
 		for (k = 0; k < len[i]; k++) {
 			pte = lookup_address(addr[i] + k*PAGE_SIZE, &level);
 			if (!pte || pgprot_val(pte_pgprot(*pte)) == 0) {
 				addr[i] = 0;
 				break;
 			}
-			if (k == 0)
+			if (k == 0) {
 				pte0 = *pte;
-			else if (pgprot_val(pte_pgprot(*pte)) !=
+			} else {
+				if (pgprot_val(pte_pgprot(*pte)) !=
 					pgprot_val(pte_pgprot(pte0))) {
-				len[i] = k;
-				break;
+					len[i] = k;
+					break;
+				}
 			}
 			if (test_bit(pfn + k, bm)) {
 				len[i] = k;
@@ -170,19 +180,19 @@ static __init int exercise_pageattr(void)
 		err = change_page_attr(virt_to_page(addr[i]), len[i],
 			    pte_pgprot(pte_clrhuge(pte_clrglobal(pte0))));
 		if (err < 0) {
-			printk("CPA %d failed %d\n", i, err);
+			printk(KERN_ERR "CPA %d failed %d\n", i, err);
 			failed++;
 		}
 
 		pte = lookup_address(addr[i], &level);
 		if (!pte || pte_global(*pte) || pte_huge(*pte)) {
-			printk("CPA %lx: bad pte %Lx\n", addr[i],
+			printk(KERN_ERR "CPA %lx: bad pte %Lx\n", addr[i],
 				pte ? (u64)pte_val(*pte) : 0ULL);
 			failed++;
 		}
 		if (level != LOWEST_LEVEL) {
-			printk("CPA %lx: unexpected level %d\n", addr[i],
-					level);
+			printk(KERN_ERR "CPA %lx: unexpected level %d\n",
+				addr[i], level);
 			failed++;
 		}
 
@@ -192,26 +202,26 @@ static __init int exercise_pageattr(void)
 
 	failed += print_split(&sb);
 
-	printk("CPA reverting everything\n");
+	printk(KERN_INFO "CPA reverting everything\n");
 	for (i = 0; i < NTEST; i++) {
 		if (!addr[i])
 			continue;
 		pte = lookup_address(addr[i], &level);
 		if (!pte) {
-			printk("CPA lookup of %lx failed\n", addr[i]);
+			printk(KERN_ERR "CPA lookup of %lx failed\n", addr[i]);
 			failed++;
 			continue;
 		}
 		err = change_page_attr(virt_to_page(addr[i]), len[i],
 					  pte_pgprot(pte_mkglobal(*pte)));
 		if (err < 0) {
-			printk("CPA reverting failed: %d\n", err);
+			printk(KERN_ERR "CPA reverting failed: %d\n", err);
 			failed++;
 		}
 		pte = lookup_address(addr[i], &level);
 		if (!pte || !pte_global(*pte)) {
-			printk("CPA %lx: bad pte after revert %Lx\n", addr[i],
-			       pte ? (u64)pte_val(*pte) : 0ULL);
+			printk(KERN_ERR "CPA %lx: bad pte after revert %Lx\n",
+				addr[i], pte ? (u64)pte_val(*pte) : 0ULL);
 			failed++;
 		}
 
@@ -223,11 +233,10 @@ static __init int exercise_pageattr(void)
 		failed++;
 
 	if (failed)
-		printk("CPA selftests NOT PASSED. Please report.\n");
+		printk(KERN_ERR "CPA selftests NOT PASSED. Please report.\n");
 	else
-		printk("CPA selftests PASSED\n");
+		printk(KERN_INFO "CPA selftests PASSED\n");
 
 	return 0;
 }
-
 module_init(exercise_pageattr);