diff options
Diffstat (limited to 'arch/microblaze/include/asm/uaccess.h')
| -rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index 304b04ffea2f..c44b59470e45 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -30,35 +30,14 @@ */ # define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) -# ifndef CONFIG_MMU -# define KERNEL_DS MAKE_MM_SEG(0) -# define USER_DS KERNEL_DS -# else # define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF) # define USER_DS MAKE_MM_SEG(TASK_SIZE - 1) -# endif # define get_fs() (current_thread_info()->addr_limit) # define set_fs(val) (current_thread_info()->addr_limit = (val)) # define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg) -#ifndef CONFIG_MMU - -/* Check against bounds of physical memory */ -static inline int ___range_ok(unsigned long addr, unsigned long size) -{ - return ((addr < memory_start) || - ((addr + size - 1) > (memory_start + memory_size - 1))); -} - -#define __range_ok(addr, size) \ - ___range_ok((unsigned long)(addr), (unsigned long)(size)) - -#define access_ok(addr, size) (__range_ok((addr), (size)) == 0) - -#else - static inline int access_ok(const void __user *addr, unsigned long size) { if (!size) @@ -77,15 +56,9 @@ ok: (u32)get_fs().seg); return 1; } -#endif -#ifdef CONFIG_MMU # define __FIXUP_SECTION ".section .fixup,\"ax\"\n" # define __EX_TABLE_SECTION ".section __ex_table,\"a\"\n" -#else -# define __FIXUP_SECTION ".section .discard,\"ax\"\n" -# define __EX_TABLE_SECTION ".section .discard,\"ax\"\n" -#endif extern unsigned long __copy_tofrom_user(void __user *to, const void __user *from, unsigned long size); |