X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Futil.c;fp=mm%2Futil.c;h=f126975ef23e7bea33e5fa5e15d191bb8dfd1b2e;hb=ccd35fb9f4da856b105ea0f1e0cab3702e8ae6ba;hp=73dac81e9f782be7c58407b1f14a9bbb214b543e;hpb=786a5e15b613a9cee4fc9139fc3113a5ab0fde79;p=pandora-kernel.git diff --git a/mm/util.c b/mm/util.c index 73dac81e9f78..f126975ef23e 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