[IA64] Export three symbols for module use

Since kvm/module needs to use some unexported functions in kernel,
so export them with this patch.

Signed-off-by: Zhang Xiantao <[e-mail]>
Signed-off-by: Tony Luck <[e-mail]>

arch/ia64/kernel/ia64_ksyms.c

···
 EXPORT_SYMBOL(memcpy);
 EXPORT_SYMBOL(strlen);
 
+#include<asm/pgtable.h>
+EXPORT_SYMBOL_GPL(empty_zero_page);
+
 #include <asm/checksum.h>
 EXPORT_SYMBOL(ip_fast_csum);		/* hand-coded assembly */
 EXPORT_SYMBOL(csum_ipv6_magic);

arch/ia64/kernel/sal.c

···
 	SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0);
 	return isrv.status;
 }
+EXPORT_SYMBOL_GPL(ia64_sal_cache_flush);
 
 void __init
 ia64_sal_init (struct ia64_sal_systab *systab)
···
 	return 0;
 }
 EXPORT_SYMBOL(ia64_sal_oemcall_reentrant);
+
+long
+ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
+		    unsigned long *drift_info)
+{
+	struct ia64_sal_retval isrv;
+
+	SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
+	*ticks_per_second = isrv.v0;
+	*drift_info = isrv.v1;
+	return isrv.status;
+}
+EXPORT_SYMBOL_GPL(ia64_sal_freq_base);

include/asm-ia64/sal.h

···
  * Now define a couple of inline functions for improved type checking
  * and convenience.
  */
-static inline long
-ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
-		    unsigned long *drift_info)
-{
-	struct ia64_sal_retval isrv;
-
-	SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0);
-	*ticks_per_second = isrv.v0;
-	*drift_info = isrv.v1;
-	return isrv.status;
-}
 
 extern s64 ia64_sal_cache_flush (u64 cache_type);
 extern void __init check_sal_cache_flush (void);
···
 				   u64, u64, u64, u64, u64);
 extern int ia64_sal_oemcall_reentrant(struct ia64_sal_retval *, u64, u64, u64,
 				      u64, u64, u64, u64, u64);
+extern long
+ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second,
+		    unsigned long *drift_info);
 #ifdef CONFIG_HOTPLUG_CPU
 /*
  * System Abstraction Layer Specification