linux-kernel - [PATCH 4.4 154/342] Revert "MIPS: Fix PAGE

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Message-Id: <20160301234532.951366305@linuxfoundation.org>
Date:	Tue, 01 Mar 2016 23:54:35 +0000
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	<linux-kernel@...r.kernel.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<stable@...r.kernel.org>, Manuel Lauss <manuel.lauss@...il.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	Ralf Baechle <ralf@...ux-mips.org>
Subject: [PATCH 4.4 154/342] Revert "MIPS: Fix PAGE_MASK definition"

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Williams <dan.j.williams@...el.com>

commit 800dc4f49cc002879e1e5e6b79926f86b60528e6 upstream.

This reverts commit 22b14523994588279ae9c5ccfe64073c1e5b3c00.

It was originally sent in an earlier revision of the pfn_t patchset.
Besides being broken, the warning is also fixed by PFN_FLAGS_MASK
casting the PAGE_MASK to an unsigned long.

Reported-by: Manuel Lauss <manuel.lauss@...il.com>
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
Cc: linux-kernel@...r.kernel.org
Cc: Linux-MIPS <linux-mips@...ux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/12182/
Signed-off-by: Ralf Baechle <ralf@...ux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 arch/mips/include/asm/page.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 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	(~(PAGE_SIZE - 1))
+#define PAGE_MASK	(~((1 << PAGE_SHIFT) - 1))
 
 /*
  * This is used for calculating the real page sizes