* [PATCH] ACPI: MRRM: Use for_each_populated_zone() in get_node_num()
@ 2026-08-21 13:15 Sang-Heon Jeon
0 siblings, 0 replies; only message in thread
From: Sang-Heon Jeon @ 2026-08-21 13:15 UTC (permalink / raw)
To: Rafael J. Wysocki; +Cc: Len Brown, linux-acpi
get_node_num() iterates over the populated zones of every online node
with a nested loop. for_each_populated_zone() iterates over the same
zones in the same order.
So use for_each_populated_zone() instead and remove the unused
variable.
No functional change.
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
---
drivers/acpi/acpi_mrrm.c | 14 ++++----------
1 file changed, 4 insertions(+), 10 deletions(-)
diff --git a/drivers/acpi/acpi_mrrm.c b/drivers/acpi/acpi_mrrm.c
index e99cbda83452..83934e2aa0d4 100644
--- a/drivers/acpi/acpi_mrrm.c
+++ b/drivers/acpi/acpi_mrrm.c
@@ -36,17 +36,11 @@ static u32 mrrm_mem_entry_num;
static int get_node_num(struct mrrm_mem_range_entry *e)
{
- unsigned int nid;
+ struct zone *zone;
- for_each_online_node(nid) {
- for (int z = 0; z < MAX_NR_ZONES; z++) {
- struct zone *zone = NODE_DATA(nid)->node_zones + z;
-
- if (!populated_zone(zone))
- continue;
- if (zone_intersects(zone, PHYS_PFN(e->base), PHYS_PFN(e->length)))
- return zone_to_nid(zone);
- }
+ for_each_populated_zone(zone) {
+ if (zone_intersects(zone, PHYS_PFN(e->base), PHYS_PFN(e->length)))
+ return zone_to_nid(zone);
}
return -ENOENT;
--
2.43.0
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2026-08-21 13:15 [PATCH] ACPI: MRRM: Use for_each_populated_zone() in get_node_num() Sang-Heon Jeon
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