summaryrefslogtreecommitdiffstats
path: root/arch/s390/kernel/smp.c
diff options
context:
space:
mode:
authorMichael Holzheu <holzheu@linux.vnet.ibm.com>2012-05-18 14:29:19 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-05-23 17:06:50 +0200
commitd7b7cdea06360d3151cc8118751b3b82519c4ce0 (patch)
treebf92c22c6e7d76df82a6f897579418cb0f49a9b6 /arch/s390/kernel/smp.c
parent6101167727932a929e37fb8a6eeb68bdbf54d58e (diff)
s390/kernel: Remove OS info init function call and diag 308 for kdump
Because of a design change for stand-alone kdump the function that was done by the OS info init function is moved to the boot loader code. This has two implications that are implemented by this patch: a) The OS info init function is no longer called by the kernel b) The diag 308 subcode 1 reset is no longer done by the kdump boot code. This is necessary because otherwise the operation that is done now by the boot loader would be reversed. For the normal kexec based kdump mechansim the reset is already done by the kdump trigger code (e.g. panic or PSW restart). Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 647ba942589..9948bd09ee5 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -800,17 +800,6 @@ void __noreturn cpu_die(void)
#endif /* CONFIG_HOTPLUG_CPU */
-static void smp_call_os_info_init_fn(void)
-{
- int (*init_fn)(void);
- unsigned long size;
-
- init_fn = os_info_old_entry(OS_INFO_INIT_FN, &size);
- if (!init_fn)
- return;
- init_fn();
-}
-
void __init smp_prepare_cpus(unsigned int max_cpus)
{
/* request the 0x1201 emergency signal external interrupt */
@@ -819,7 +808,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
/* request the 0x1202 external call external interrupt */
if (register_external_interrupt(0x1202, do_ext_call_interrupt) != 0)
panic("Couldn't request external interrupt 0x1202");
- smp_call_os_info_init_fn();
smp_detect_cpus();
}