s390/kdump: fix compile for !SMP

Fix this compile error:

arch/s390/kernel/setup.c:875:2: error:
 implicit declaration of function 'smp_save_dump_cpus'

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 21 insertions, 23 deletions

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 24ad89df7e5f..6f54c175f5c9 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -560,6 +560,25 @@ static void __smp_store_cpu_state(struct save_area_ext *sa_ext, u16 address,
         memblock_free(vx_sa, PAGE_SIZE);
 }
 
+int smp_store_status(int cpu)
+{
+        unsigned long vx_sa;
+        struct pcpu *pcpu;
+
+        pcpu = pcpu_devices + cpu;
+        if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
+                              0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
+                return -EIO;
+        if (!MACHINE_HAS_VX)
+                return 0;
+        vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
+        __pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
+                          vx_sa, NULL);
+        return 0;
+}
+
+#endif /* CONFIG_CRASH_DUMP */
+
 /*
  * Collect CPU state of the previous, crashed system.
  * There are four cases:
@@ -589,6 +608,7 @@ static void __smp_store_cpu_state(struct save_area_ext *sa_ext, u16 address,
  */
 void __init smp_save_dump_cpus(void)
 {
+#ifdef CONFIG_CRASH_DUMP
         int addr, cpu, boot_cpu_addr, max_cpu_addr;
         struct save_area_ext *sa_ext;
         bool is_boot_cpu;
@@ -629,30 +649,8 @@ void __init smp_save_dump_cpus(void)
         }
         diag308_reset();
         pcpu_set_smt(0);
-}
-
-int smp_store_status(int cpu)
-{
-        unsigned long vx_sa;
-        struct pcpu *pcpu;
-
-        pcpu = pcpu_devices + cpu;
-        if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
-                              0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
-                return -EIO;
-        if (!MACHINE_HAS_VX)
-                return 0;
-        vx_sa = __pa(pcpu->lowcore->vector_save_area_addr);
-        __pcpu_sigp_relax(pcpu->address, SIGP_STORE_ADDITIONAL_STATUS,
-                          vx_sa, NULL);
-        return 0;
-}
-
-#else
-void smp_save_dump_cpus(void)
-{
-}
 #endif /* CONFIG_CRASH_DUMP */
+}
 
 void smp_cpu_set_polarization(int cpu, int val)
 {