Re: linux-next: build warning after merge of the mm tree

Baoquan He
2024-03-28T02:00:14Z

On 03/28/24 at 09:13am, Stephen Rothwell wrote:
> Hi all,
>
> After merging the mm tree, today's linux-next build (arm
> multi_v7_defconfig) produced this warning:
>
> mm/page_alloc.c: In function 'build_zonelists':
> mm/page_alloc.c:5324:13: warning: unused variable 'node' [-Wunused-variable]
> 5324 | int node, local_node;
> | ^~~~
>
> Introduced by commit
>
> 95d0185255a3 ("mm/page_alloc.c: remove unneeded codes in !NUMA version of build_zonelists()")
>
> from the mm-unstable branch of the mm tree.

Thanks. Below code change has been queued on mm-unstable branch to fix it.

From 6bb5aa700a6221248df150cba3d9c54cd95bed97 Mon Sep 17 00:00:00 2001
From: Baoquan He <bhe@redhat.com>
Date: Wed, 27 Mar 2024 20:06:45 +0800
Subject: [PATCH]
mm-page_allocc-remove-unneeded-codes-in-numa-version-of-build_zonelists-v2
Content-type: text/plain

remove unused locals

Link: https://lkml.kernel.org/r/ZgQL1WOf9K88nLpQ@MiWiFi-R3L-srv
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/page_alloc.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a4f6b5f308ea..9c591413ca04 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5285,12 +5285,9 @@ static void setup_min_slab_ratio(void);

static void build_zonelists(pg_data_t *pgdat)
{
- int node, local_node;
struct zoneref *zonerefs;
int nr_zones;

- local_node = pgdat->node_id;
-
zonerefs = pgdat->node_zonelists[ZONELIST_FALLBACK]._zonerefs;
nr_zones = build_zonerefs_node(pgdat, zonerefs);
zonerefs += nr_zones;
--
2.41.0