arch: remove compat_alloc_user_space

[linux-2.6-microblaze.git] / arch / s390 / lib / uaccess.c

diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 7ec8b1f..a596e69 100644 (file)
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -204,69 +204,6 @@ unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long
 }
 EXPORT_SYMBOL(raw_copy_to_user);
 
-static inline unsigned long copy_in_user_mvcos(void __user *to, const void __user *from,
-                                              unsigned long size)
-{
-       unsigned long tmp1, tmp2;
-
-       tmp1 = -4096UL;
-       /* FIXME: copy with reduced length. */
-       asm volatile(
-               "   lgr   0,%[spec]\n"
-               "0: .insn ss,0xc80000000000,0(%0,%1),0(%2),0\n"
-               "   jz    2f\n"
-               "1: algr  %0,%3\n"
-               "   slgr  %1,%3\n"
-               "   slgr  %2,%3\n"
-               "   j     0b\n"
-               "2:slgr  %0,%0\n"
-               "3: \n"
-               EX_TABLE(0b,3b)
-               : "+a" (size), "+a" (to), "+a" (from), "+a" (tmp1), "=a" (tmp2)
-               : [spec] "d" (0x810081UL)
-               : "cc", "memory", "0");
-       return size;
-}
-
-static inline unsigned long copy_in_user_mvc(void __user *to, const void __user *from,
-                                            unsigned long size)
-{
-       unsigned long tmp1;
-
-       asm volatile(
-               "   sacf  256\n"
-               "   aghi  %0,-1\n"
-               "   jo    5f\n"
-               "   bras  %3,3f\n"
-               "0: aghi  %0,257\n"
-               "1: mvc   0(1,%1),0(%2)\n"
-               "   la    %1,1(%1)\n"
-               "   la    %2,1(%2)\n"
-               "   aghi  %0,-1\n"
-               "   jnz   1b\n"
-               "   j     5f\n"
-               "2: mvc   0(256,%1),0(%2)\n"
-               "   la    %1,256(%1)\n"
-               "   la    %2,256(%2)\n"
-               "3: aghi  %0,-256\n"
-               "   jnm   2b\n"
-               "4: ex    %0,1b-0b(%3)\n"
-               "5: slgr  %0,%0\n"
-               "6: sacf  768\n"
-               EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b)
-               : "+a" (size), "+a" (to), "+a" (from), "=a" (tmp1)
-               : : "cc", "memory");
-       return size;
-}
-
-unsigned long raw_copy_in_user(void __user *to, const void __user *from, unsigned long n)
-{
-       if (copy_with_mvcos())
-               return copy_in_user_mvcos(to, from, n);
-       return copy_in_user_mvc(to, from, n);
-}
-EXPORT_SYMBOL(raw_copy_in_user);
-
 static inline unsigned long clear_user_mvcos(void __user *to, unsigned long size)
 {
        unsigned long tmp1, tmp2;
@@ -338,55 +275,3 @@ unsigned long __clear_user(void __user *to, unsigned long size)
        return clear_user_xc(to, size);
 }
 EXPORT_SYMBOL(__clear_user);
-
-static inline unsigned long strnlen_user_srst(const char __user *src,
-                                             unsigned long size)
-{
-       unsigned long tmp1, tmp2;
-
-       asm volatile(
-               "   lghi  0,0\n"
-               "   la    %2,0(%1)\n"
-               "   la    %3,0(%0,%1)\n"
-               "   slgr  %0,%0\n"
-               "   sacf  256\n"
-               "0: srst  %3,%2\n"
-               "   jo    0b\n"
-               "   la    %0,1(%3)\n"   /* strnlen_user results includes \0 */
-               "   slgr  %0,%1\n"
-               "1: sacf  768\n"
-               EX_TABLE(0b,1b)
-               : "+a" (size), "+a" (src), "=a" (tmp1), "=a" (tmp2)
-               :
-               : "cc", "memory", "0");
-       return size;
-}
-
-unsigned long __strnlen_user(const char __user *src, unsigned long size)
-{
-       if (unlikely(!size))
-               return 0;
-       return strnlen_user_srst(src, size);
-}
-EXPORT_SYMBOL(__strnlen_user);
-
-long __strncpy_from_user(char *dst, const char __user *src, long size)
-{
-       size_t done, len, offset, len_str;
-
-       if (unlikely(size <= 0))
-               return 0;
-       done = 0;
-       do {
-               offset = (size_t)src & (L1_CACHE_BYTES - 1);
-               len = min(size - done, L1_CACHE_BYTES - offset);
-               if (copy_from_user(dst, src, len))
-                       return -EFAULT;
-               len_str = strnlen(dst, len);
-               done += len_str;
-               src += len_str;
-               dst += len_str;
-       } while ((len_str == len) && (done < size));
-       return done;
-}
-EXPORT_SYMBOL(__strncpy_from_user);