Mikulas noticed that the parisc kernel crashes in sd_init() if
CONFIG_SCHED_MC is enabled.
Multicore-scheduling is probably not very useful on parisc, so simply
drop this option.
Signed-off-by: Helge Deller <deller@xxxxxx>
Noticed-by: Mikulas Patocka <mpatocka@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 5.18
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index bd22578859d0..34591a981cb7 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -281,14 +281,6 @@ config SMP
If you don't know what to do here, say N.
-config SCHED_MC
- bool "Multi-core scheduler support"
- depends on GENERIC_ARCH_TOPOLOGY && PA8X00
- help
- Multi-core scheduler support improves the CPU scheduler's decision
- making when dealing with multi-core CPU chips at a cost of slightly
- increased overhead in some places. If unsure say N here.
-
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
default y
diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c
index 9696e3cb6a2a..71a678ceb33a 100644
--- a/arch/parisc/kernel/topology.c
+++ b/arch/parisc/kernel/topology.c
@@ -81,10 +81,6 @@ void store_cpu_topology(unsigned int cpuid)
}
static struct sched_domain_topology_level parisc_mc_topology[] = {
-#ifdef CONFIG_SCHED_MC
- { cpu_coregroup_mask, cpu_core_flags, SD_INIT_NAME(MC) },
-#endif
-
{ cpu_cpu_mask, SD_INIT_NAME(DIE) },
{ NULL, },
};
