linux-kernel - [PATCH RFC 2/5] mm: percpu: fix variable type of cpu

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Message-Id: <20231012024842.99703-3-rongwei.wang@linux.alibaba.com>
Date:   Thu, 12 Oct 2023 10:48:39 +0800
From:   Rongwei Wang <rongwei.wang@...ux.alibaba.com>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Cc:     akpm@...ux-foundation.org, willy@...radead.org,
        catalin.marinas@....com, dave.hansen@...ux.intel.com,
        tj@...nel.org, mingo@...hat.com
Subject: [PATCH RFC 2/5] mm: percpu: fix variable type of cpu

Almost all places declare 'cpu' as 'unsigned int'
type, but early_cpu_to_nod() not. So correct it
in this patch.

Signed-off-by: Rongwei Wang <rongwei.wang@...ux.alibaba.com>
---
 drivers/base/arch_numa.c | 2 +-
 include/linux/percpu.h   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/arch_numa.c b/drivers/base/arch_numa.c
index eaa31e567d1e..db0bb8b8fd67 100644
--- a/drivers/base/arch_numa.c
+++ b/drivers/base/arch_numa.c
@@ -144,7 +144,7 @@ void __init early_map_cpu_to_node(unsigned int cpu, int nid)
 unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(__per_cpu_offset);
 
-static int __init early_cpu_to_node(int cpu)
+static int __init early_cpu_to_node(unsigned int cpu)
 {
 	return cpu_to_node_map[cpu];
 }
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 68fac2e7cbe6..4aee8400af54 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -100,7 +100,7 @@ extern const char * const pcpu_fc_names[PCPU_FC_NR];
 
 extern enum pcpu_fc pcpu_chosen_fc;
 
-typedef int (pcpu_fc_cpu_to_node_fn_t)(int cpu);
+typedef int (pcpu_fc_cpu_to_node_fn_t)(unsigned int cpu);
 typedef int (pcpu_fc_cpu_distance_fn_t)(unsigned int from, unsigned int to);
 
 extern struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups,
-- 
2.32.0.3.gf3a3e56d6