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authorDavid S. Miller <davem@davemloft.net>2012-05-23 02:53:19 +0200
committerDavid S. Miller <davem@davemloft.net>2012-05-23 08:32:27 +0200
commitff06dffbc8abfc60d6a0332f058f1d1bb01abb31 (patch)
tree0845d6acfaf8221fb5d6ae3281cb1c33a8212cff /arch/sparc/include/asm/uaccess_64.h
parentsparc32: use the common implementation of alloc_thread_info_node() (diff)
downloadlinux-ff06dffbc8abfc60d6a0332f058f1d1bb01abb31.tar.xz
linux-ff06dffbc8abfc60d6a0332f058f1d1bb01abb31.zip
sparc: Add full proper error handling to strncpy_from_user().
Linus removed the end-of-address-space hackery from fs/namei.c:do_getname() so we really have to validate these edge conditions and cannot cheat any more (as x86 used to as well). Move to a common C implementation like x86 did. And if both src and dst are sufficiently aligned we'll do word at a time copies and checks as well. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/uaccess_64.h')
-rw-r--r--arch/sparc/include/asm/uaccess_64.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index a1091afb8831..dcdfb89cbf3f 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -257,10 +257,6 @@ extern unsigned long __must_check __clear_user(void __user *, unsigned long);
#define clear_user __clear_user
-extern long __must_check __strncpy_from_user(char *dest, const char __user *src, long count);
-
-#define strncpy_from_user __strncpy_from_user
-
extern long __strlen_user(const char __user *);
extern long __strnlen_user(const char __user *, long len);