X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=mm%2Futil.c;h=f126975ef23e7bea33e5fa5e15d191bb8dfd1b2e;hb=fa0d7e3de6d6fc5004ad9dea0dd6b286af8f03e9;hp=73dac81e9f782be7c58407b1f14a9bbb214b543e;hpb=9ae6d039224def926656206725ae6e89d1331417;p=~andy%2Flinux

diff --git a/mm/util.c b/mm/util.c
index 73dac81e9f7..f126975ef23 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -186,27 +186,6 @@ void kzfree(const void *p)
 }
 EXPORT_SYMBOL(kzfree);
 
-int kern_ptr_validate(const void *ptr, unsigned long size)
-{
-	unsigned long addr = (unsigned long)ptr;
-	unsigned long min_addr = PAGE_OFFSET;
-	unsigned long align_mask = sizeof(void *) - 1;
-
-	if (unlikely(addr < min_addr))
-		goto out;
-	if (unlikely(addr > (unsigned long)high_memory - size))
-		goto out;
-	if (unlikely(addr & align_mask))
-		goto out;
-	if (unlikely(!kern_addr_valid(addr)))
-		goto out;
-	if (unlikely(!kern_addr_valid(addr + size - 1)))
-		goto out;
-	return 1;
-out:
-	return 0;
-}
-
 /*
  * strndup_user - duplicate an existing string from user space
  * @s: The string to duplicate