compat: rename MDIO exported symbols

compat-drivers now has support for carrying over the
MDIO module. To help it avoid clashes with already in
place drivers that rely on the older MDIO module we
rename the exported symbols of the shinier module with
a compat_ prefix.

An alternative to this strategy is to have compat-drivers
work under a separate namespace but we have yet to receive
patches for that, although we hear someone did it.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>

diff --git a/include/linux/compat-2.6.31.h b/include/linux/compat-2.6.31.h
index 6e513ef9ca09fbe86e0ced8306c1e7747914f23d..cfa34dfa9028dce468a8a27c1842e06f00ce878b 100644 (file)
--- a/include/linux/compat-2.6.31.h
+++ b/include/linux/compat-2.6.31.h
@@ -51,6 +51,30 @@
 #endif
 #endif
 
+/*
+ * These changes allow us to backport and forward port
+ * the driver/net/mdio module. What we do is simply
+ * rename the exported symbols to other symbols and
+ * rely on the fact that compat-drivers will take care
+ * of renaming that module. This allows in-place drivers
+ * to use the old module and have the newer supplied
+ * drivers through compat-drivers to use the new bacported
+ * module.
+ *
+ * XXX: maybe we should have a COMPAT_EXPORT_SYMBOL() that
+ * takes care of renaming the symbols with a compat_ prefix?
+ * There are other ideas of using a separate namespace for
+ * modules supplied by compat -- someone already did the work
+ * but never sent the patches ;) who are you out there ?
+ */
+#define mdio45_probe                   compat_mdio45_probe
+#define mdio_set_flag                  compat_mdio_set_flag
+#define mdio45_links_ok                        compat_mdio45_links_ok
+#define mdio45_nway_restart            compat_mdio45_nway_restart
+#define mdio45_ethtool_gset_npage      compat_mdio45_ethtool_gset_npage
+#define mdio45_ethtool_spauseparam_an  compat_mdio45_ethtool_spauseparam_an
+#define mdio_mii_ioctl                 compat_mdio_mii_ioctl
+
 #ifndef NETDEV_PRE_UP
 #define NETDEV_PRE_UP          0x000D
 #endif