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 cf45d27..1cae248 100644
--- a/Documentation/s390/zfcpdump.txt
+++ b/Documentation/s390/zfcpdump.txt
@@ -21,7 +21,7 @@
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 @@
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 d239e6a..bb63499 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -593,21 +593,14 @@
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 7c5b05f..1e2264b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -211,7 +211,7 @@
}
}
-#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 @@
}
#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 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 1f0b474..4b8b7f6 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -521,7 +521,7 @@
}
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 @@
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 @@
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 b69ab17..629fcc2 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -33,4 +33,4 @@
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