From: Dan Williams <dan.j.williams@intel.com>
Date: Sat, 10 Oct 2015 00:56:28 +0000 (-0400)
Subject: MIPS: Fix PAGE_MASK definition
X-Git-Tag: v4.13~4120^2~5
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=22b14523994588279ae9c5ccfe64073c1e5b3c00;p=mirror_ubuntu-bionic-kernel.git

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))

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: ross.zwisler@linux.intel.com
Cc: hch@lst.de
Cc: linux-mips@linux-mips.org
Cc: linux-nvdimm@lists.01.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org
Patchwork: https://patchwork.linux-mips.org/patch/11280/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

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