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

Commit f8f9f21c7848 ("MIPS: Fix build error for loongson64 and
sgi-ip27") added HAVE_ARCH_NODEDATA_EXTENSION to sgi-ip27 to silence a
compilation error that happened because sgi-ip27 didn't define array of
pg_data_t as node_data like most other architectures did.

After addition of node_data array that matches other architectures and
after ensuring that offline nodes do not appear on node_possible_map, it
is safe to drop arch_alloc_nodedata() and HAVE_ARCH_NODEDATA_EXTENSION
from sgi-ip27.

Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
---
 arch/mips/Kconfig                |  1 -
 arch/mips/sgi-ip27/ip27-memory.c | 10 ----------
 2 files changed, 11 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 60077e576935..ea5f3c3c31f6 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig

@@ -735,7 +735,6 @@ config SGI_IP27
 	select WAR_R10000_LLSC
 	select MIPS_L1_CACHE_SHIFT_7
 	select NUMA
-	select HAVE_ARCH_NODEDATA_EXTENSION
 	help
 	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 	  workstations.  To compile a Linux kernel that runs on these, say Y

diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index c30ef6958b97..eb6d2fa41a8a 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c

@@ -426,13 +426,3 @@ void __init mem_init(void)
 	memblock_free_all();
 	setup_zero_pages();	/* This comes from node 0 */
 }
-
-pg_data_t * __init arch_alloc_nodedata(int nid)
-{
-	return memblock_alloc(sizeof(pg_data_t), SMP_CACHE_BYTES);
-}
-
-void arch_refresh_nodedata(int nid, pg_data_t *pgdat)
-{
-	__node_data[nid] = (struct node_data *)pgdat;
-}

-- 
2.43.0