diff options
Diffstat (limited to 'arch/um/sys-i386/ldt.c')
| -rw-r--r-- | arch/um/sys-i386/ldt.c | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/arch/um/sys-i386/ldt.c b/arch/um/sys-i386/ldt.c index a939a7ef022..762a12aec75 100644 --- a/arch/um/sys-i386/ldt.c +++ b/arch/um/sys-i386/ldt.c @@ -19,72 +19,6 @@ extern int modify_ldt(int func, void *ptr, unsigned long bytecount); -#ifdef CONFIG_MODE_TT - -static long do_modify_ldt_tt(int func, void __user *ptr, - unsigned long bytecount) -{ - struct user_desc info; - int res = 0; - void *buf = NULL; - void *p = NULL; /* What we pass to host. */ - - switch(func){ - case 1: - case 0x11: /* write_ldt */ - /* Do this check now to avoid overflows. */ - if (bytecount != sizeof(struct user_desc)) { - res = -EINVAL; - goto out; - } - - if(copy_from_user(&info, ptr, sizeof(info))) { - res = -EFAULT; - goto out; - } - - p = &info; - break; - case 0: - case 2: /* read_ldt */ - - /* The use of info avoids kmalloc on the write case, not on the - * read one. */ - buf = kmalloc(bytecount, GFP_KERNEL); - if (!buf) { - res = -ENOMEM; - goto out; - } - p = buf; - break; - default: - res = -ENOSYS; - goto out; - } - - res = modify_ldt(func, p, bytecount); - if(res < 0) - goto out; - - switch(func){ - case 0: - case 2: - /* Modify_ldt was for reading and returned the number of read - * bytes.*/ - if(copy_to_user(ptr, p, res)) - res = -EFAULT; - break; - } - -out: - kfree(buf); - return res; -} - -#endif - -#ifdef CONFIG_MODE_SKAS - #include "skas.h" #include "skas_ptrace.h" #include "asm/mmu_context.h" @@ -569,7 +503,6 @@ void free_ldt(struct mmu_context_skas * mm) } mm->ldt.entry_count = 0; } -#endif int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount) { |