diff options
Diffstat (limited to 'arch/arm/include/asm/uaccess.h')
| -rw-r--r-- | arch/arm/include/asm/uaccess.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index c136eef8f690..42aa4a22803c 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -279,7 +279,7 @@ static inline void set_fs(mm_segment_t fs) #endif /* CONFIG_MMU */ -#define access_ok(type, addr, size) (__range_ok(addr, size) == 0) +#define access_ok(addr, size) (__range_ok(addr, size) == 0) #define user_addr_max() \ (uaccess_kernel() ? ~0UL : get_fs()) @@ -349,6 +349,13 @@ do { \ #define __get_user_asm_byte(x, addr, err) \ __get_user_asm(x, addr, err, ldrb) +#if __LINUX_ARM_ARCH__ >= 6 + +#define __get_user_asm_half(x, addr, err) \ + __get_user_asm(x, addr, err, ldrh) + +#else + #ifndef __ARMEB__ #define __get_user_asm_half(x, __gu_addr, err) \ ({ \ @@ -367,6 +374,8 @@ do { \ }) #endif +#endif /* __LINUX_ARM_ARCH__ >= 6 */ + #define __get_user_asm_word(x, addr, err) \ __get_user_asm(x, addr, err, ldr) #endif @@ -442,6 +451,13 @@ do { \ #define __put_user_asm_byte(x, __pu_addr, err) \ __put_user_asm(x, __pu_addr, err, strb) +#if __LINUX_ARM_ARCH__ >= 6 + +#define __put_user_asm_half(x, __pu_addr, err) \ + __put_user_asm(x, __pu_addr, err, strh) + +#else + #ifndef __ARMEB__ #define __put_user_asm_half(x, __pu_addr, err) \ ({ \ @@ -458,6 +474,8 @@ do { \ }) #endif +#endif /* __LINUX_ARM_ARCH__ >= 6 */ + #define __put_user_asm_word(x, __pu_addr, err) \ __put_user_asm(x, __pu_addr, err, str) @@ -560,7 +578,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n) static inline unsigned long __must_check clear_user(void __user *to, unsigned long n) { - if (access_ok(VERIFY_WRITE, to, n)) + if (access_ok(to, n)) n = __clear_user(to, n); return n; } |