Linux-2.6.33 compat, .ctl_name removed from struct ctl_table

As of linux-2.6.33 the ctl_name member of the ctl_table struct
has been entirely removed.  The upstream code has been updated
to depend entirely on the the procname member.  To handle this
all references to ctl_name are wrapped in a CTL_NAME macro which
simply expands to nothing for newer kernels.  Older kernels are
supported by having it expand to .ctl_name = X just as before.

include/linux/proc_compat.h

@@ -36,6 +36,12 @@
 #define spl_unregister_sysctl_table(t)	unregister_sysctl_table(t)
 #endif /* CONFIG_SYSCTL */
 
+#ifdef HAVE_CTL_NAME
+#define CTL_NAME(cname)                 .ctl_name = (cname),
+#else
+#define CTL_NAME(cname)
+#endif
+
 extern struct proc_dir_entry *proc_spl_kstat;
 struct proc_dir_entry *proc_dir_entry_find(struct proc_dir_entry *root,
 					   const char *str);