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Diffstat (limited to 'arch/s390/lib/uaccess.c')
-rw-r--r--arch/s390/lib/uaccess.c63
1 files changed, 0 insertions, 63 deletions
diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 94ca99bde59d..a596e69d3c47 100644
--- 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;