[S390] zfcpdump: Do not initialize zfcpdump in kdump mode

When the kernel is started in kdump mode, zfcpdump should not be
initialized because both dump methods can't be used at the same time.

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

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 8ac6bfa2786cbe139d9964b1f4ab374e4302e2e8..e58a462949b164ea90c5697696b9ccec47bb7ff4 100644 (file)
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -211,6 +211,8 @@ static void __init setup_zfcpdump(unsigned int console_devno)
 
        if (ipl_info.type != IPL_TYPE_FCP_DUMP)
                return;
+       if (OLDMEM_BASE)
+               return;
        if (console_devno != -1)
                sprintf(str, " cio_ignore=all,!0.0.%04x,!0.0.%04x",
                        ipl_info.data.fcp.dev_id.devno, console_devno);
@@ -482,7 +484,7 @@ static void __init setup_memory_end(void)
 
 
 #ifdef CONFIG_ZFCPDUMP
-       if (ipl_info.type == IPL_TYPE_FCP_DUMP) {
+       if (ipl_info.type == IPL_TYPE_FCP_DUMP && !OLDMEM_BASE) {
                memory_end = ZFCPDUMP_HSA_SIZE;
                memory_end_set = 1;
        }

diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 43068fbd0baacfe8beb7d353cda35a8c06c371e2..1b6d9247fdc78a4237d5e7048347a0a66875d140 100644 (file)
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -641,6 +641,8 @@ static int __init zcore_init(void)
 
        if (ipl_info.type != IPL_TYPE_FCP_DUMP)
                return -ENODATA;
+       if (OLDMEM_BASE)
+               return -ENODATA;
 
        zcore_dbf = debug_register("zcore", 4, 1, 4 * sizeof(long));
        debug_register_view(zcore_dbf, &debug_sprintf_view);