From: Wu Fengguang <wfg@mail.ustc.edu.cn>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] i386 zone_sizes_init() fix
Date: Sat, 1 Apr 2006 21:10:11 +0800 [thread overview]
Message-ID: <20060401131011.GA10804@mail.ustc.edu.cn> (raw)
Now that with MAX_NR_ZONES=4, the last element of zones_size[] is
left uninitialized in zone_sizes_init() on i386.
Fix this by using gcc's range initializer to protect from future changes.
Signed-off-by: Wu Fengguang <wfg@mail.ustc.edu.cn>
---
--- linux-2.6.16-mm2.orig/arch/i386/mm/discontig.c
+++ linux-2.6.16-mm2/arch/i386/mm/discontig.c
@@ -355,7 +355,7 @@ void __init zone_sizes_init(void)
for_each_online_node(nid) {
- unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
+ unsigned long zones_size[] = { [0 ... MAX_NR_ZONES-1] = 0 };
unsigned long *zholes_size;
unsigned int max_dma;
--- linux-2.6.16-mm2.orig/arch/i386/kernel/setup.c
+++ linux-2.6.16-mm2/arch/i386/kernel/setup.c
@@ -1203,7 +1203,7 @@ static unsigned long __init setup_memory
void __init zone_sizes_init(void)
{
- unsigned long zones_size[MAX_NR_ZONES] = {0, 0, 0};
+ unsigned long zones_size[] = { [0 ... MAX_NR_ZONES-1] = 0 };
unsigned int max_dma, low;
max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
next reply other threads:[~2006-04-01 13:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-01 13:10 Wu Fengguang [this message]
2006-04-01 15:04 ` Andreas Schwab
2006-04-02 0:58 ` Wu Fengguang
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