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From:   Huaisheng Ye <yehs2007@gmail.com>
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        Huaisheng Ye <yehs1@lenovo.com>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>,
        "H. Peter Anvin" <hpa@zytor.com>
Subject: [RFC PATCH v2 03/12] arch/x86/kernel/pci-calgary_64: update usage of address zone modifiers
Date:   Mon, 21 May 2018 23:20:24 +0800
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From: Huaisheng Ye <yehs1@lenovo.com>

Use __GFP_ZONE_MASK to replace (__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32).

___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP
bitmasks, the bottom three bits of GFP mask is reserved for storing
encoded zone number.
__GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated by OR.

Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Cc: Muli Ben-Yehuda <mulix@mulix.org>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
---
 arch/x86/kernel/pci-calgary_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 35c461f..c89717d 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -445,7 +445,7 @@ static void* calgary_alloc_coherent(struct device *dev, size_t size,
 	npages = size >> PAGE_SHIFT;
 	order = get_order(size);
 
-	flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+	flag &= ~__GFP_ZONE_MASK;
 
 	/* alloc enough pages (and possibly more) */
 	ret = (void *)__get_free_pages(flag, order);
-- 
1.8.3.1