datapath: Work around debugging for csum_and_copy_to_user().

[sliver-openvswitch.git] / datapath / linux-2.6 / compat-2.6 / include / net / checksum.h

diff --git a/datapath/linux-2.6/compat-2.6/include/net/checksum.h b/datapath/linux-2.6/compat-2.6/include/net/checksum.h
index 3b6debb..96fd3a6 100644 (file)
--- a/datapath/linux-2.6/compat-2.6/include/net/checksum.h
+++ b/datapath/linux-2.6/compat-2.6/include/net/checksum.h
@@ -10,4 +10,12 @@ static inline __wsum csum_unfold(__sum16 n)
 }
 #endif /* !HAVE_CSUM_UNFOLD */
 
+/* Workaround for debugging included in certain versions of XenServer.  It only
+ * applies to 32-bit x86.
+ */
+#if defined(HAVE_CSUM_COPY_DBG) && defined(CONFIG_X86_32)
+#define csum_and_copy_to_user(src, dst, len, sum, err_ptr) \
+       csum_and_copy_to_user(src, dst, len, sum, NULL, err_ptr)
+#endif
+
 #endif /* checksum.h */