[PATCH 2/4] sh: set node_possible_map in do_init_bootmem()

Sang-Heon Jeon <[email protected]> Thu, 2 Jul 2026 02:18:49 +0900
Newsgroups org.kernel.vger.linux-sh,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID <[email protected]>
Unlike other NUMA architectures, sh never sets node_possible_map.
do_init_bootmem() marks node 0 online and plat_mem_setup() marks the
rest online, after which node_online_map does not change, so set
node_possible_map from node_online_map.

Signed-off-by: Sang-Heon Jeon <[email protected]>
---
 arch/sh/mm/init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 110308bdef01..13954d7bbdae 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -227,6 +227,8 @@ static void __init do_init_bootmem(void)
 	node_set_online(0);
 
 	plat_mem_setup();
+
+	node_possible_map = node_online_map;
 }
 
 static void __init early_reserve_mem(void)
-- 
2.43.0