[S390] Randomize lower bits of stack address

[karo-tx-linux.git] / arch / s390 / include / asm / system.h

diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index 6710b0eac165765f2835f214464ad5f9750c3866..8f8d759f6a7b696327955c2643312a52fd900c90 100644 (file)
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -449,7 +449,7 @@ extern void (*_machine_restart)(char *command);
 extern void (*_machine_halt)(void);
 extern void (*_machine_power_off)(void);
 
-#define arch_align_stack(x) (x)
+extern unsigned long arch_align_stack(unsigned long sp);
 
 static inline int tprot(unsigned long addr)
 {