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Message-Id: <20070426001528.373958e9.randy.dunlap@oracle.com>
Date: Thu, 26 Apr 2007 00:15:28 -0700
From: Randy Dunlap <randy.dunlap@...cle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: lkml <linux-kernel@...r.kernel.org>, ak@...e.de
Subject: [PATCH -mm, v2] x86_64: kill 19000+ sparse warnings
> hm, the duplication is unfortunate.
>
> I wonder if it's worth doing a cpp token-pasting trick to avoid having to
> do that.
From: Randy Dunlap <randy.dunlap@...cle.com>
Eliminate 19439 (!!) sparse warnings like:
include/linux/mm.h:321:22: warning: constant 0xffff810000000000 is so big it is unsigned long
Eliminate 56 sparse warnings like:
arch/x86_64/kernel/setup.c:248:16: warning: constant 0xffffffff80000000 is so big it is unsigned long
Eliminate 5 sparse warnings like:
arch/x86_64/kernel/module.c:49:13: warning: constant 0xfffffffffff00000 is so big it is unsigned long
Eliminate 23 sparse warnings like:
arch/x86_64/mm/init.c:551:37: warning: constant 0xffffc20000000000 is so big it is unsigned long
Eliminate 6 sparse warnings like:
arch/x86_64/kernel/module.c:49:13: warning: constant 0xffffffff88000000 is so big it is unsigned long
Eliminate 23 sparse warnings like:
arch/x86_64/mm/init.c:552:6: warning: constant 0xffffe1ffffffffff is so big it is unsigned long
Eliminate 3 sparse warnings like:
arch/x86_64/kernel/e820.c:186:17: warning: constant 0x3fffffffffff is so big it is long
Signed-off-by: Randy Dunlap <randy.dunlap@...cle.com>
---
include/asm-x86_64/page.h | 7 ++++---
include/asm-x86_64/pgtable.h | 10 +++++-----
2 files changed, 9 insertions(+), 8 deletions(-)
--- linux-2.6.21-rc7-mm1.orig/include/asm-x86_64/page.h
+++ linux-2.6.21-rc7-mm1/include/asm-x86_64/page.h
@@ -80,9 +80,10 @@ extern unsigned long phys_base;
#define __PHYSICAL_START CONFIG_PHYSICAL_START
#define __KERNEL_ALIGN 0x200000
+
#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
-#define __START_KERNEL_map 0xffffffff80000000
-#define __PAGE_OFFSET 0xffff810000000000
+#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
+#define __PAGE_OFFSET _AC(0xffff810000000000, UL)
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
@@ -94,7 +95,7 @@ extern unsigned long phys_base;
#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
#define KERNEL_TEXT_SIZE (40*1024*1024)
-#define KERNEL_TEXT_START 0xffffffff80000000
+#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL)
#ifndef __ASSEMBLY__
--- linux-2.6.21-rc7-mm1.orig/include/asm-x86_64/pgtable.h
+++ linux-2.6.21-rc7-mm1/include/asm-x86_64/pgtable.h
@@ -134,11 +134,11 @@ static inline pte_t ptep_get_and_clear_f
#define USER_PTRS_PER_PGD ((TASK_SIZE-1)/PGDIR_SIZE+1)
#define FIRST_USER_ADDRESS 0
-#define MAXMEM 0x3fffffffffff
-#define VMALLOC_START 0xffffc20000000000
-#define VMALLOC_END 0xffffe1ffffffffff
-#define MODULES_VADDR 0xffffffff88000000
-#define MODULES_END 0xfffffffffff00000
+#define MAXMEM _AC(0x3fffffffffff, UL)
+#define VMALLOC_START _AC(0xffffc20000000000, UL)
+#define VMALLOC_END _AC(0xffffe1ffffffffff, UL)
+#define MODULES_VADDR _AC(0xffffffff88000000, UL)
+#define MODULES_END _AC(0xfffffffffff00000, UL)
#define MODULES_LEN (MODULES_END - MODULES_VADDR)
#define _PAGE_BIT_PRESENT 0
-
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