diff options
Diffstat (limited to 'arch/um/kernel/skas/uaccess.c')
| -rw-r--r-- | arch/um/kernel/skas/uaccess.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/um/kernel/skas/uaccess.c b/arch/um/kernel/skas/uaccess.c index a509be911026..aaee96f07172 100644 --- a/arch/um/kernel/skas/uaccess.c +++ b/arch/um/kernel/skas/uaccess.c @@ -146,11 +146,6 @@ static int copy_chunk_from_user(unsigned long from, int len, void *arg) unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n) { - if (uaccess_kernel()) { - memcpy(to, (__force void*)from, n); - return 0; - } - return buffer_op((unsigned long) from, n, 0, copy_chunk_from_user, &to); } EXPORT_SYMBOL(raw_copy_from_user); @@ -166,11 +161,6 @@ static int copy_chunk_to_user(unsigned long to, int len, void *arg) unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n) { - if (uaccess_kernel()) { - memcpy((__force void *) to, from, n); - return 0; - } - return buffer_op((unsigned long) to, n, 1, copy_chunk_to_user, &from); } EXPORT_SYMBOL(raw_copy_to_user); @@ -196,12 +186,6 @@ long strncpy_from_user(char *dst, const char __user *src, long count) if (!access_ok(src, 1)) return -EFAULT; - - if (uaccess_kernel()) { - strncpy(dst, (__force void *) src, count); - return strnlen(dst, count); - } - n = buffer_op((unsigned long) src, count, 0, strncpy_chunk_from_user, &ptr); if (n != 0) @@ -218,11 +202,6 @@ static int clear_chunk(unsigned long addr, int len, void *unused) unsigned long __clear_user(void __user *mem, unsigned long len) { - if (uaccess_kernel()) { - memset((__force void*)mem, 0, len); - return 0; - } - return buffer_op((unsigned long) mem, len, 1, clear_chunk, NULL); } EXPORT_SYMBOL(__clear_user); @@ -245,10 +224,6 @@ long strnlen_user(const char __user *str, long len) if (!access_ok(str, 1)) return -EFAULT; - - if (uaccess_kernel()) - return strnlen((__force char*)str, len) + 1; - n = buffer_op((unsigned long) str, len, 0, strnlen_chunk, &count); if (n == 0) return count + 1; @@ -348,7 +323,6 @@ EXPORT_SYMBOL(arch_futex_atomic_op_inuser); * 0 - On success * -EFAULT - User access resulted in a page fault * -EAGAIN - Atomic operation was unable to complete due to contention - * -ENOSYS - Function not implemented (only if !HAVE_FUTEX_CMPXCHG) */ int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, |