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From:   Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To:     catalin.marinas@arm.com, hch@lst.de, wahrenst@gmx.net,
        marc.zyngier@arm.com, robh+dt@kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
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Cc:     f.fainelli@gmail.com, will@kernel.org, robin.murphy@arm.com,
        nsaenzjulienne@suse.de, mbrugger@suse.com,
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        m.szyprowski@samsung.com
Subject: [PATCH v5 1/4] arm64: mm: use arm64_dma_phys_limit instead of calling max_zone_dma_phys()
Date:   Mon,  9 Sep 2019 11:58:04 +0200
Message-Id: <20190909095807.18709-2-nsaenzjulienne@suse.de>
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By the time we call zones_sizes_init() arm64_dma_phys_limit already
contains the result of max_zone_dma_phys(). We use the variable instead
of calling the function directly to save some precious cpu time.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index f3c795278def..6112d6c90fa8 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -181,7 +181,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max)
 	unsigned long max_zone_pfns[MAX_NR_ZONES]  = {0};
 
 #ifdef CONFIG_ZONE_DMA32
-	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys());
+	max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit);
 #endif
 	max_zone_pfns[ZONE_NORMAL] = max;
 
-- 
2.23.0