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Diffstat (limited to 'arch/blackfin/include/asm/uaccess.h')
-rw-r--r--arch/blackfin/include/asm/uaccess.h41
1 files changed, 12 insertions, 29 deletions
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 5cc111502822..461bb542e2e8 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -34,23 +34,6 @@ static inline void set_fs(mm_segment_t fs)
#define access_ok(type, addr, size) _access_ok((unsigned long)(addr), (size))
-static inline int is_in_rom(unsigned long addr)
-{
- /*
- * What we are really trying to do is determine if addr is
- * in an allocated kernel memory region. If not then assume
- * we cannot free it or otherwise de-allocate it. Ideally
- * we could restrict this to really being in a ROM or flash,
- * but that would need to be done on a board by board basis,
- * not globally.
- */
- if ((addr < _ramstart) || (addr >= _ramend))
- return (1);
-
- /* Default case, not in ROM */
- return (0);
-}
-
/*
* The fs value determines whether argument validity checking should be
* performed or not. If get_fs() == USER_DS, checking is performed, with
@@ -89,7 +72,7 @@ struct exception_table_entry {
({ \
int _err = 0; \
typeof(*(p)) _x = (x); \
- typeof(*(p)) *_p = (p); \
+ typeof(*(p)) __user *_p = (p); \
if (!access_ok(VERIFY_WRITE, _p, sizeof(*(_p)))) {\
_err = -EFAULT; \
} \
@@ -108,8 +91,8 @@ struct exception_table_entry {
long _xl, _xh; \
_xl = ((long *)&_x)[0]; \
_xh = ((long *)&_x)[1]; \
- __put_user_asm(_xl, ((long *)_p)+0, ); \
- __put_user_asm(_xh, ((long *)_p)+1, ); \
+ __put_user_asm(_xl, ((long __user *)_p)+0, ); \
+ __put_user_asm(_xh, ((long __user *)_p)+1, ); \
} break; \
default: \
_err = __put_user_bad(); \
@@ -136,7 +119,7 @@ static inline int bad_user_access_length(void)
* aliasing issues.
*/
-#define __ptr(x) ((unsigned long *)(x))
+#define __ptr(x) ((unsigned long __force *)(x))
#define __put_user_asm(x,p,bhw) \
__asm__ (#bhw"[%1] = %0;\n\t" \
@@ -216,12 +199,12 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
*/
static inline long __must_check
-strncpy_from_user(char *dst, const char *src, long count)
+strncpy_from_user(char *dst, const char __user *src, long count)
{
char *tmp;
if (!access_ok(VERIFY_READ, src, 1))
return -EFAULT;
- strncpy(dst, src, count);
+ strncpy(dst, (const char __force *)src, count);
for (tmp = dst; *tmp && count > 0; tmp++, count--) ;
return (tmp - dst);
}
@@ -237,18 +220,18 @@ strncpy_from_user(char *dst, const char *src, long count)
* On exception, returns 0.
* If the string is too long, returns a value greater than n.
*/
-static inline long __must_check strnlen_user(const char *src, long n)
+static inline long __must_check strnlen_user(const char __user *src, long n)
{
if (!access_ok(VERIFY_READ, src, 1))
return 0;
- return strnlen(src, n) + 1;
+ return strnlen((const char __force *)src, n) + 1;
}
-static inline long __must_check strlen_user(const char *src)
+static inline long __must_check strlen_user(const char __user *src)
{
if (!access_ok(VERIFY_READ, src, 1))
return 0;
- return strlen(src) + 1;
+ return strlen((const char __force *)src) + 1;
}
/*
@@ -256,11 +239,11 @@ static inline long __must_check strlen_user(const char *src)
*/
static inline unsigned long __must_check
-__clear_user(void *to, unsigned long n)
+__clear_user(void __user *to, unsigned long n)
{
if (!access_ok(VERIFY_WRITE, to, n))
return n;
- memset(to, 0, n);
+ memset((void __force *)to, 0, n);
return 0;
}