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authorHelge Deller <deller@gmx.de>2010-02-01 19:56:33 +0000
committerKyle McMartin <kyle@redhat.com>2010-03-06 22:54:09 +0000
commit888c31fc83ddc7fcd9947cb67c5718b4e3dd5e1b (patch)
tree15ef949561b6c8b319bb686eadec20c98148dfa3 /arch/parisc/lib
parentparisc: remove trailing space in messages (diff)
downloadlinux-dev-888c31fc83ddc7fcd9947cb67c5718b4e3dd5e1b.tar.xz
linux-dev-888c31fc83ddc7fcd9947cb67c5718b4e3dd5e1b.zip
parisc: add strict copy size checks (v2)
Add CONFIG_DEBUG_STRICT_USER_COPY_CHECKS, copied from the x86 implementation. Tested with 32 and 64bit kernel. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Diffstat (limited to '')
-rw-r--r--arch/parisc/lib/memcpy.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index abf41f4632a9..1dbca5c31b3c 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -475,7 +475,8 @@ unsigned long copy_to_user(void __user *dst, const void *src, unsigned long len)
return pa_memcpy((void __force *)dst, src, len);
}
-unsigned long copy_from_user(void *dst, const void __user *src, unsigned long len)
+EXPORT_SYMBOL(__copy_from_user);
+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned long len)
{
mtsp(get_user_space(), 1);
mtsp(get_kernel_space(), 2);