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Message-ID: <20151010005628.17221.44732.stgit@dwillia2-desk3.jf.intel.com>
Date:	Fri, 09 Oct 2015 20:56:28 -0400
From:	Dan Williams <dan.j.williams@...el.com>
To:	linux-nvdimm@...ts.01.org
Cc:	linux-mips@...ux-mips.org, linux-kernel@...r.kernel.org,
	Ralf Baechle <ralf@...ux-mips.org>, linux-mm@...ck.org,
	ross.zwisler@...ux.intel.com, hch@....de
Subject: [PATCH v2 12/20] mips: fix PAGE_MASK definition

Make PAGE_MASK an unsigned long, like it is on x86, to avoid:

In file included from arch/mips/kernel/asm-offsets.c:14:0:
include/linux/mm.h: In function '__pfn_to_pfn_t':
include/linux/mm.h:1050:2: warning: left shift count >= width of type
  pfn_t pfn_t = { .val = pfn | (flags & PFN_FLAGS_MASK), };

...where PFN_FLAGS_MASK is:

#define PFN_FLAGS_MASK (~PAGE_MASK << (BITS_PER_LONG - PAGE_SHIFT))

Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: linux-mips@...ux-mips.org
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 arch/mips/include/asm/page.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 89dd7fed1a57..ad1fccdb8d13 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -33,7 +33,7 @@
 #define PAGE_SHIFT	16
 #endif
 #define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK	(~((1 << PAGE_SHIFT) - 1))
+#define PAGE_MASK	(~(PAGE_SIZE - 1))
 
 /*
  * This is used for calculating the real page sizes

--
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