From a41e0d754240fe8ca9c4f2070bf67e3b0228aa22 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 25 Mar 2017 19:38:23 -0400 Subject: x86: don't wank with magical size in __copy_in_user() ... especially since copy_in_user() doesn't Signed-off-by: Al Viro --- arch/x86/lib/usercopy_64.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch/x86/lib') diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c index 6c8b6a6c1b38..3b7c40a2e3e1 100644 --- a/arch/x86/lib/usercopy_64.c +++ b/arch/x86/lib/usercopy_64.c @@ -54,15 +54,6 @@ unsigned long clear_user(void __user *to, unsigned long n) } EXPORT_SYMBOL(clear_user); -unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len) -{ - if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { - return copy_user_generic((__force void *)to, (__force void *)from, len); - } - return len; -} -EXPORT_SYMBOL(copy_in_user); - /* * Try to copy last bytes and clear the rest if needed. * Since protection fault in copy_from/to_user is not a normal situation, -- cgit v1.2.3