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Diffstat (limited to 'security/selinux/ss/ebitmap.c')
-rw-r--r--security/selinux/ss/ebitmap.c56
1 files changed, 28 insertions, 28 deletions
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index 77875ad355f7..67c1a73cd5ee 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Implementation of the extensible bitmap type.
*
@@ -6,14 +6,11 @@
*/
/*
* Updated: Hewlett-Packard <[email protected]>
+ * Added support to import/export the NetLabel category bitmap
+ * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
*
- * Added support to import/export the NetLabel category bitmap
- *
- * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
- */
-/*
* Updated: KaiGai Kohei <[email protected]>
- * Applied standard bit operations to improve bitmap scanning.
+ * Applied standard bit operations to improve bitmap scanning.
*/
#include <linux/kernel.h>
@@ -24,7 +21,7 @@
#include "ebitmap.h"
#include "policydb.h"
-#define BITS_PER_U64 (sizeof(u64) * 8)
+#define BITS_PER_U64 (sizeof(u64) * 8)
static struct kmem_cache *ebitmap_node_cachep __ro_after_init;
@@ -37,8 +34,7 @@ int ebitmap_cmp(const struct ebitmap *e1, const struct ebitmap *e2)
n1 = e1->node;
n2 = e2->node;
- while (n1 && n2 &&
- (n1->startbit == n2->startbit) &&
+ while (n1 && n2 && (n1->startbit == n2->startbit) &&
!memcmp(n1->maps, n2->maps, EBITMAP_SIZE / 8)) {
n1 = n1->next;
n2 = n2->next;
@@ -79,14 +75,16 @@ int ebitmap_cpy(struct ebitmap *dst, const struct ebitmap *src)
return 0;
}
-int ebitmap_and(struct ebitmap *dst, const struct ebitmap *e1, const struct ebitmap *e2)
+int ebitmap_and(struct ebitmap *dst, const struct ebitmap *e1,
+ const struct ebitmap *e2)
{
struct ebitmap_node *n;
int bit, rc;
ebitmap_init(dst);
- ebitmap_for_each_positive_bit(e1, n, bit) {
+ ebitmap_for_each_positive_bit(e1, n, bit)
+ {
if (ebitmap_get_bit(e2, bit)) {
rc = ebitmap_set_bit(dst, bit, 1);
if (rc < 0)
@@ -96,7 +94,6 @@ int ebitmap_and(struct ebitmap *dst, const struct ebitmap *e1, const struct ebit
return 0;
}
-
#ifdef CONFIG_NETLABEL
/**
* ebitmap_netlbl_export - Export an ebitmap into a NetLabel category bitmap
@@ -131,10 +128,8 @@ int ebitmap_netlbl_export(struct ebitmap *ebmap,
for (iter = 0; iter < EBITMAP_UNIT_NUMS; iter++) {
e_map = e_iter->maps[iter];
if (e_map != 0) {
- rc = netlbl_catmap_setlong(catmap,
- offset,
- e_map,
- GFP_ATOMIC);
+ rc = netlbl_catmap_setlong(catmap, offset,
+ e_map, GFP_ATOMIC);
if (rc != 0)
goto netlbl_export_failure;
}
@@ -185,7 +180,8 @@ int ebitmap_netlbl_import(struct ebitmap *ebmap,
if (e_iter == NULL ||
offset >= e_iter->startbit + EBITMAP_SIZE) {
e_prev = e_iter;
- e_iter = kmem_cache_zalloc(ebitmap_node_cachep, GFP_ATOMIC);
+ e_iter = kmem_cache_zalloc(ebitmap_node_cachep,
+ GFP_ATOMIC);
if (e_iter == NULL)
goto netlbl_import_failure;
e_iter->startbit = offset - (offset % EBITMAP_SIZE);
@@ -218,7 +214,8 @@ netlbl_import_failure:
* if last_e2bit is non-zero, the highest set bit in e2 cannot exceed
* last_e2bit.
*/
-int ebitmap_contains(const struct ebitmap *e1, const struct ebitmap *e2, u32 last_e2bit)
+int ebitmap_contains(const struct ebitmap *e1, const struct ebitmap *e2,
+ u32 last_e2bit)
{
const struct ebitmap_node *n1, *n2;
int i;
@@ -234,8 +231,8 @@ int ebitmap_contains(const struct ebitmap *e1, const struct ebitmap *e2, u32 las
n1 = n1->next;
continue;
}
- for (i = EBITMAP_UNIT_NUMS - 1; (i >= 0) && !n2->maps[i]; )
- i--; /* Skip trailing NULL map entries */
+ for (i = EBITMAP_UNIT_NUMS - 1; (i >= 0) && !n2->maps[i];)
+ i--; /* Skip trailing NULL map entries */
if (last_e2bit && (i >= 0)) {
u32 lastsetbit = n2->startbit + i * EBITMAP_UNIT_SIZE +
__fls(n2->maps[i]);
@@ -302,8 +299,8 @@ int ebitmap_set_bit(struct ebitmap *e, unsigned long bit, int value)
* within the bitmap
*/
if (prev)
- e->highbit = prev->startbit
- + EBITMAP_SIZE;
+ e->highbit = prev->startbit +
+ EBITMAP_SIZE;
else
e->highbit = 0;
}
@@ -424,7 +421,8 @@ int ebitmap_read(struct ebitmap *e, void *fp)
if (!n || startbit >= n->startbit + EBITMAP_SIZE) {
struct ebitmap_node *tmp;
- tmp = kmem_cache_zalloc(ebitmap_node_cachep, GFP_KERNEL);
+ tmp = kmem_cache_zalloc(ebitmap_node_cachep,
+ GFP_KERNEL);
if (!tmp) {
pr_err("SELinux: ebitmap: out of memory\n");
rc = -ENOMEM;
@@ -481,7 +479,8 @@ int ebitmap_write(const struct ebitmap *e, void *fp)
count = 0;
last_bit = 0;
last_startbit = -1;
- ebitmap_for_each_positive_bit(e, n, bit) {
+ ebitmap_for_each_positive_bit(e, n, bit)
+ {
if (rounddown(bit, (int)BITS_PER_U64) > last_startbit) {
count++;
last_startbit = rounddown(bit, BITS_PER_U64);
@@ -497,7 +496,8 @@ int ebitmap_write(const struct ebitmap *e, void *fp)
map = 0;
last_startbit = INT_MIN;
- ebitmap_for_each_positive_bit(e, n, bit) {
+ ebitmap_for_each_positive_bit(e, n, bit)
+ {
if (rounddown(bit, (int)BITS_PER_U64) > last_startbit) {
__le64 buf64[1];
@@ -559,6 +559,6 @@ u32 ebitmap_hash(const struct ebitmap *e, u32 hash)
void __init ebitmap_cache_init(void)
{
ebitmap_node_cachep = kmem_cache_create("ebitmap_node",
- sizeof(struct ebitmap_node),
- 0, SLAB_PANIC, NULL);
+ sizeof(struct ebitmap_node), 0,
+ SLAB_PANIC, NULL);
}
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