summaryrefslogtreecommitdiff
path: root/include/linux/uaccess.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/uaccess.h')
-rw-r--r--include/linux/uaccess.h9
1 files changed, 3 insertions, 6 deletions
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index efe79c1cdd47..bf2523867a02 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -6,9 +6,6 @@
#include <linux/thread_info.h>
#include <linux/kasan-checks.h>
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
#define uaccess_kernel() segment_eq(get_fs(), KERNEL_DS)
#include <asm/uaccess.h>
@@ -111,7 +108,7 @@ _copy_from_user(void *to, const void __user *from, unsigned long n)
{
unsigned long res = n;
might_fault();
- if (likely(access_ok(VERIFY_READ, from, n))) {
+ if (likely(access_ok(from, n))) {
kasan_check_write(to, n);
res = raw_copy_from_user(to, from, n);
}
@@ -129,7 +126,7 @@ static inline unsigned long
_copy_to_user(void __user *to, const void *from, unsigned long n)
{
might_fault();
- if (access_ok(VERIFY_WRITE, to, n)) {
+ if (access_ok(to, n)) {
kasan_check_read(from, n);
n = raw_copy_to_user(to, from, n);
}
@@ -160,7 +157,7 @@ static __always_inline unsigned long __must_check
copy_in_user(void __user *to, const void __user *from, unsigned long n)
{
might_fault();
- if (access_ok(VERIFY_WRITE, to, n) && access_ok(VERIFY_READ, from, n))
+ if (access_ok(to, n) && access_ok(from, n))
n = raw_copy_in_user(to, from, n);
return n;
}