diff options
Diffstat (limited to 'arch/frv')
| -rw-r--r-- | arch/frv/include/asm/pgtable.h | 1 | ||||
| -rw-r--r-- | arch/frv/include/asm/segment.h | 1 | ||||
| -rw-r--r-- | arch/frv/include/asm/uaccess.h | 14 | ||||
| -rw-r--r-- | arch/frv/kernel/vmlinux.lds.S | 1 |
4 files changed, 11 insertions, 6 deletions
diff --git a/arch/frv/include/asm/pgtable.h b/arch/frv/include/asm/pgtable.h index 07d7a7ef8bd5..a0513d463a1f 100644 --- a/arch/frv/include/asm/pgtable.h +++ b/arch/frv/include/asm/pgtable.h @@ -522,5 +522,6 @@ extern void __init pgtable_cache_init(void); #ifndef __ASSEMBLY__ extern void __init paging_init(void); #endif /* !__ASSEMBLY__ */ +#define HAVE_ARCH_UNMAPPED_AREA #endif /* _ASM_PGTABLE_H */ diff --git a/arch/frv/include/asm/segment.h b/arch/frv/include/asm/segment.h index 4377c89a57f5..2305142d4cf8 100644 --- a/arch/frv/include/asm/segment.h +++ b/arch/frv/include/asm/segment.h @@ -32,7 +32,6 @@ typedef struct { #define get_ds() (KERNEL_DS) #define get_fs() (__current_thread_info->addr_limit) #define segment_eq(a, b) ((a).seg == (b).seg) -#define __kernel_ds_p() segment_eq(get_fs(), KERNEL_DS) #define get_addr_limit() (get_fs().seg) #define set_fs(_x) \ diff --git a/arch/frv/include/asm/uaccess.h b/arch/frv/include/asm/uaccess.h index 3ac9a59d65d4..c0f4057eab60 100644 --- a/arch/frv/include/asm/uaccess.h +++ b/arch/frv/include/asm/uaccess.h @@ -20,8 +20,6 @@ #include <asm/segment.h> #include <asm/sections.h> -#define HAVE_ARCH_UNMAPPED_AREA /* we decide where to put mmaps */ - #define __ptr(x) ((unsigned long __force *)(x)) #define VERIFY_READ 0 @@ -263,19 +261,25 @@ do { \ extern long __memset_user(void *dst, unsigned long count); extern long __memcpy_user(void *dst, const void *src, unsigned long count); -#define clear_user(dst,count) __memset_user(____force(dst), (count)) +#define __clear_user(dst,count) __memset_user(____force(dst), (count)) #define __copy_from_user_inatomic(to, from, n) __memcpy_user((to), ____force(from), (n)) #define __copy_to_user_inatomic(to, from, n) __memcpy_user(____force(to), (from), (n)) #else -#define clear_user(dst,count) (memset(____force(dst), 0, (count)), 0) +#define __clear_user(dst,count) (memset(____force(dst), 0, (count)), 0) #define __copy_from_user_inatomic(to, from, n) (memcpy((to), ____force(from), (n)), 0) #define __copy_to_user_inatomic(to, from, n) (memcpy(____force(to), (from), (n)), 0) #endif -#define __clear_user clear_user +static inline unsigned long __must_check +clear_user(void __user *to, unsigned long n) +{ + if (likely(__access_ok(to, n))) + n = __clear_user(to, n); + return n; +} static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S index 7e958d829ec9..aa6e573d57da 100644 --- a/arch/frv/kernel/vmlinux.lds.S +++ b/arch/frv/kernel/vmlinux.lds.S @@ -63,6 +63,7 @@ SECTIONS *(.text..tlbmiss) TEXT_TEXT SCHED_TEXT + CPUIDLE_TEXT LOCK_TEXT #ifdef CONFIG_DEBUG_INFO INIT_TEXT |