s390/dump: Remove CONFIG_ZFCPDUMP

Currently there are two s390 kernel dump config options "CONFIG_ZFCPDUMP"
and "CONFIG_CRASH_DUMP". In order to keep things simple and because the
"CONFIG_ZFCPDUMP" option already has a dependency to "CONFIG_CRASH_DUMP"
remove the CONFIG_ZFCPDUMP option.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Reviewed-by: Eric Farman <farman@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/Documentation/s390/zfcpdump.txt b/Documentation/s390/zfcpdump.txt
index cf45d27c4608da8f566d4b888aa766a8e1e9bd4e..1cae248c3b779bac8ec15707a37b34ea9ea1a8b3 100644 (file)
--- a/Documentation/s390/zfcpdump.txt
+++ b/Documentation/s390/zfcpdump.txt
@@ -21,7 +21,7 @@ standalone dump format. It can be used in the same way as e.g. /dev/mem. The
 dump format defines a 4K header followed by plain uncompressed memory. The
 register sets are stored in the prefix pages of the respective cpus. To build a
 dump enabled kernel with the zcore driver, the kernel config option
-CONFIG_ZFCPDUMP has to be set. When reading from "zcore/mem", the part of
+CONFIG_CRASH_DUMP has to be set. When reading from "zcore/mem", the part of
 memory, which has been saved by hardware is read by the driver via the SCLP
 hardware interface. The second part is just copied from the non overwritten real
 memory.
@@ -32,7 +32,7 @@ SCSI disk.
 
 To build a zfcpdump kernel use the following settings in your kernel
 configuration:
- * CONFIG_ZFCPDUMP=y
+ * CONFIG_CRASH_DUMP=y
  * Enable ZFCP driver
  * Enable SCSI driver
  * Enable ext2 and ext3 filesystems

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index d239e6afb9238ea6f073ec1cfd330ea6af2a3fe4..bb63499fc5d3c50ec35108d66271d7b801bd4767 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -593,21 +593,14 @@ config CRASH_DUMP
        bool "kernel crash dumps"
        depends on 64BIT && SMP
        select KEXEC
-       select ZFCPDUMP
        help
          Generate crash dump after being started by kexec.
          Crash dump kernels are loaded in the main kernel with kexec-tools
          into a specially reserved region and then later executed after
          a crash by kdump/kexec.
-         For more details see Documentation/kdump/kdump.txt
-
-config ZFCPDUMP
-       def_bool n
-       prompt "zfcpdump support"
-       depends on 64BIT && SMP
-       help
-         Select this option if you want to build an zfcpdump enabled kernel.
          Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.
+         This option also enables s390 zfcpdump.
+         See also <file:Documentation/s390/zfcpdump.txt>
 
 endmenu
 

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 7c5b05fa2194d5af19b00b6a7eacedb89beca1b6..1e2264b46e4c1d21e31b1edeb39d935ea789c359 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -211,7 +211,7 @@ static void __init conmode_default(void)
        }
 }
 
-#ifdef CONFIG_ZFCPDUMP
+#ifdef CONFIG_CRASH_DUMP
 static void __init setup_zfcpdump(void)
 {
        if (ipl_info.type != IPL_TYPE_FCP_DUMP)
@@ -223,7 +223,7 @@ static void __init setup_zfcpdump(void)
 }
 #else
 static inline void setup_zfcpdump(void) {}
-#endif /* CONFIG_ZFCPDUMP */
+#endif /* CONFIG_CRASH_DUMP */
 
  /*
  * Reboot, halt and power_off stubs. They just call _machine_restart,
@@ -521,7 +521,7 @@ static struct notifier_block kdump_mem_nb = {
  */
 static void reserve_memory_end(void)
 {
-#ifdef CONFIG_ZFCPDUMP
+#ifdef CONFIG_CRASH_DUMP
        if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
            !OLDMEM_BASE && sclp_get_hsa_size()) {
                memory_end = sclp_get_hsa_size();

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1f0b474041c4a17ec80ddab227a744ef5211fbcd..4b8b7f6284d1ebab928332988e55acf7fcc64160 100644 (file)
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -521,7 +521,7 @@ void smp_ctl_clear_bit(int cr, int bit)
 }
 EXPORT_SYMBOL(smp_ctl_clear_bit);
 
-#if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_CRASH_DUMP)
+#ifdef CONFIG_CRASH_DUMP
 
 static void __init smp_get_save_area(int cpu, u16 address)
 {
@@ -536,14 +536,12 @@ static void __init smp_get_save_area(int cpu, u16 address)
        save_area = dump_save_area_create(cpu);
        if (!save_area)
                panic("could not allocate memory for save area\n");
-#ifdef CONFIG_CRASH_DUMP
        if (address == boot_cpu_address) {
                /* Copy the registers of the boot cpu. */
                copy_oldmem_page(1, (void *) save_area, sizeof(*save_area),
                                 SAVE_AREA_BASE - PAGE_SIZE, 0);
                return;
        }
-#endif
        /* Get the registers of a non-boot cpu. */
        __pcpu_sigp_relax(address, SIGP_STOP_AND_STORE_STATUS, 0, NULL);
        memcpy_real(save_area, lc + SAVE_AREA_BASE, sizeof(*save_area));
@@ -560,11 +558,11 @@ int smp_store_status(int cpu)
        return 0;
 }
 
-#else /* CONFIG_ZFCPDUMP || CONFIG_CRASH_DUMP */
+#else /* CONFIG_CRASH_DUMP */
 
 static inline void smp_get_save_area(int cpu, u16 address) { }
 
-#endif /* CONFIG_ZFCPDUMP || CONFIG_CRASH_DUMP */
+#endif /* CONFIG_CRASH_DUMP */
 
 void smp_cpu_set_polarization(int cpu, int val)
 {

diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index b69ab17f13fabef4afc6c44a62534d549505db12..629fcc275e923b172a51a13dd419b4365319b1de 100644 (file)
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -33,4 +33,4 @@ obj-$(CONFIG_MONWRITER) += monwriter.o
 obj-$(CONFIG_S390_VMUR) += vmur.o
 
 zcore_mod-objs := sclp_sdias.o zcore.o
-obj-$(CONFIG_ZFCPDUMP) += zcore_mod.o
+obj-$(CONFIG_CRASH_DUMP) += zcore_mod.o