kill useless checks in sparc mremap variants

Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 0 insertions, 22 deletions

diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index 00abe87e5b51..dc0ac197e7e2 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -564,28 +564,6 @@ asmlinkage long sparc32_open(const char __user *filename,
         return do_sys_open(AT_FDCWD, filename, flags, mode);
 }
 
-extern unsigned long do_mremap(unsigned long addr,
-        unsigned long old_len, unsigned long new_len,
-        unsigned long flags, unsigned long new_addr);
-                
-asmlinkage unsigned long sys32_mremap(unsigned long addr,
-        unsigned long old_len, unsigned long new_len,
-        unsigned long flags, u32 __new_addr)
-{
-        unsigned long ret = -EINVAL;
-        unsigned long new_addr = __new_addr;
-
-        if (unlikely(sparc_mmap_check(addr, old_len)))
-                goto out;
-        if (unlikely(sparc_mmap_check(new_addr, new_len)))
-                goto out;
-        down_write(&current->mm->mmap_sem);
-        ret = do_mremap(addr, old_len, new_len, flags, new_addr);
-        up_write(&current->mm->mmap_sem);
-out:
-        return ret;       
-}
-
 long sys32_lookup_dcookie(unsigned long cookie_high,
                           unsigned long cookie_low,
                           char __user *buf, size_t len)