[PATCH v3 03/26] MIPS: sgi-ip27: ensure node_possible_map only contains valid nodes

Mike Rapoport
2024-08-01T06:09:22Z

From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>

For SGI IP27 machines node_possible_map is statically set to
NODE_MASK_ALL and it is not updated during NUMA initialization.

Ensure that it only contains nodes present in the system.

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
---
arch/mips/sgi-ip27/ip27-smp.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 5d2652a1d35a..62733e049570 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -70,11 +70,13 @@ void cpu_node_probe(void)
gda_t *gdap = GDA;

nodes_clear(node_online_map);
+ nodes_clear(node_possible_map);
for (i = 0; i < MAX_NUMNODES; i++) {
nasid_t nasid = gdap->g_nasidtable[i];
if (nasid == INVALID_NASID)
break;
node_set_online(nasid);
+ node_set(nasid, node_possible_map);
highest = node_scan_cpus(nasid, highest);
}

--
2.43.0