linux-kernel - [tip:x86/mm] x86, mm: Wrap ZONE_DMA32 with CONFIG_ZONE

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Date:	Fri, 18 Nov 2011 15:25:07 -0800
From:	tip-bot for Pekka Enberg <penberg@...nel.org>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	yinghai@...nel.org, penberg@...nel.org, tj@...nel.org,
	tglx@...utronix.de, rientjes@...gle.com, mingo@...e.hu,
	asharma@...com
Subject: [tip:x86/mm] x86, mm: Wrap ZONE_DMA32 with CONFIG_ZONE_DMA32

Commit-ID:  80b3cac97bc14fdf839d967602e599cbf82ea336
Gitweb:     http://git.kernel.org/tip/80b3cac97bc14fdf839d967602e599cbf82ea336
Author:     Pekka Enberg <penberg@...nel.org>
AuthorDate: Tue, 1 Nov 2011 15:58:19 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 11 Nov 2011 10:22:48 +0100

x86, mm: Wrap ZONE_DMA32 with CONFIG_ZONE_DMA32

In preparation for unifying 32-bit and 64-bit zone_sizes_init()
make sure ZONE_DMA32 is wrapped in CONFIG_ZONE_DMA32.

Acked-by: Tejun Heo <tj@...nel.org>
Acked-by: Yinghai Lu <yinghai@...nel.org>
Acked-by: David Rientjes <rientjes@...gle.com>
Acked-by: Arun Sharma <asharma@...com>
Signed-off-by: Pekka Enberg <penberg@...nel.org>
Link: http://lkml.kernel.org/r/1320155902-10424-4-git-send-email-penberg@kernel.org
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/mm/init_64.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 3ddda59..a9214e6 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -620,7 +620,9 @@ static void __init zone_sizes_init(void)
 #ifdef CONFIG_ZONE_DMA
 	max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
 #endif
+#ifdef CONFIG_ZONE_DMA32
 	max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
+#endif
 	max_zone_pfns[ZONE_NORMAL] = max_pfn;
 
 	free_area_init_nodes(max_zone_pfns);
--
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