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Message-Id: <1409392523-31570-1-git-send-email-geert@linux-m68k.org>
Date: Sat, 30 Aug 2014 11:55:23 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Russell King <linux@....linux.org.uk>,
Ralf Baechle <ralf@...ux-mips.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Martin Schwidefsky <schwidefsky@...ibm.com>,
"David S. Miller" <davem@...emloft.net>,
Guan Xuetao <gxt@...c.pku.edu.cn>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2] nosave: Consolidate __nosave_{begin,end} in <asm/sections.h>
The different architectures used their own (and different) declarations:
extern __visible const void __nosave_begin, __nosave_end;
extern const void __nosave_begin, __nosave_end;
extern long __nosave_begin, __nosave_end;
Consolidate them using the first variant in <asm/sections.h>.
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
v2: Fix new occurrence on arm, as reported by Stephen Boyd
v1: This has been sent before, as part of the series "[PATCH 00/17]
<asm/sections.h> related cleanups", almost one year ago
(https://lkml.org/lkml/2013/11/12/510).
---
arch/arm/kernel/hibernate.c | 3 +--
arch/mips/include/asm/suspend.h | 7 -------
arch/mips/power/cpu.c | 2 +-
arch/powerpc/kernel/suspend.c | 4 +---
arch/s390/kernel/suspend.c | 6 +-----
arch/sh/include/asm/sections.h | 1 -
arch/sparc/power/hibernate.c | 4 +---
arch/unicore32/include/mach/pm.h | 3 ---
arch/unicore32/kernel/hibernate.c | 1 +
arch/x86/power/hibernate_32.c | 4 +---
arch/x86/power/hibernate_64.c | 4 +---
include/asm-generic/sections.h | 4 ++++
12 files changed, 12 insertions(+), 31 deletions(-)
delete mode 100644 arch/mips/include/asm/suspend.h
diff --git a/arch/arm/kernel/hibernate.c b/arch/arm/kernel/hibernate.c
index bb8b79648643..c4cc50e58c13 100644
--- a/arch/arm/kernel/hibernate.c
+++ b/arch/arm/kernel/hibernate.c
@@ -21,8 +21,7 @@
#include <asm/idmap.h>
#include <asm/suspend.h>
#include <asm/memory.h>
-
-extern const void __nosave_begin, __nosave_end;
+#include <asm/sections.h>
int pfn_is_nosave(unsigned long pfn)
{
diff --git a/arch/mips/include/asm/suspend.h b/arch/mips/include/asm/suspend.h
deleted file mode 100644
index 3adac3b53d19..000000000000
--- a/arch/mips/include/asm/suspend.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef __ASM_SUSPEND_H
-#define __ASM_SUSPEND_H
-
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
-#endif /* __ASM_SUSPEND_H */
diff --git a/arch/mips/power/cpu.c b/arch/mips/power/cpu.c
index 521e5963df05..2129e67723ff 100644
--- a/arch/mips/power/cpu.c
+++ b/arch/mips/power/cpu.c
@@ -7,7 +7,7 @@
* Author: Hu Hongbing <huhb@...ote.com>
* Wu Zhangjin <wuzhangjin@...il.com>
*/
-#include <asm/suspend.h>
+#include <asm/sections.h>
#include <asm/fpu.h>
#include <asm/dsp.h>
diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c
index 0167d53da30c..a531154cc0f3 100644
--- a/arch/powerpc/kernel/suspend.c
+++ b/arch/powerpc/kernel/suspend.c
@@ -9,9 +9,7 @@
#include <linux/mm.h>
#include <asm/page.h>
-
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
+#include <asm/sections.h>
/*
* pfn_is_nosave - check if given pfn is in the 'nosave' section
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index a7a7537ce1e7..1c4c5accd220 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -13,14 +13,10 @@
#include <asm/ipl.h>
#include <asm/cio.h>
#include <asm/pci.h>
+#include <asm/sections.h>
#include "entry.h"
/*
- * References to section boundaries
- */
-extern const void __nosave_begin, __nosave_end;
-
-/*
* The restore of the saved pages in an hibernation image will set
* the change and referenced bits in the storage key for each page.
* Overindication of the referenced bits after an hibernation cycle
diff --git a/arch/sh/include/asm/sections.h b/arch/sh/include/asm/sections.h
index 1b6199740e98..7a99e6af6372 100644
--- a/arch/sh/include/asm/sections.h
+++ b/arch/sh/include/asm/sections.h
@@ -3,7 +3,6 @@
#include <asm-generic/sections.h>
-extern long __nosave_begin, __nosave_end;
extern long __machvec_start, __machvec_end;
extern char __uncached_start, __uncached_end;
extern char __start_eh_frame[], __stop_eh_frame[];
diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c
index 42b0b8ce699a..17bd2e167e07 100644
--- a/arch/sparc/power/hibernate.c
+++ b/arch/sparc/power/hibernate.c
@@ -9,11 +9,9 @@
#include <asm/hibernate.h>
#include <asm/visasm.h>
#include <asm/page.h>
+#include <asm/sections.h>
#include <asm/tlb.h>
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
struct saved_context saved_context;
/*
diff --git a/arch/unicore32/include/mach/pm.h b/arch/unicore32/include/mach/pm.h
index 4dcd34ae194c..77b522694e74 100644
--- a/arch/unicore32/include/mach/pm.h
+++ b/arch/unicore32/include/mach/pm.h
@@ -36,8 +36,5 @@ extern int puv3_pm_enter(suspend_state_t state);
/* Defined in hibernate_asm.S */
extern int restore_image(pgd_t *resume_pg_dir, struct pbe *restore_pblist);
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
extern struct pbe *restore_pblist;
#endif
diff --git a/arch/unicore32/kernel/hibernate.c b/arch/unicore32/kernel/hibernate.c
index d75ef8b6cb56..9969ec374abb 100644
--- a/arch/unicore32/kernel/hibernate.c
+++ b/arch/unicore32/kernel/hibernate.c
@@ -18,6 +18,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
+#include <asm/sections.h>
#include <asm/suspend.h>
#include "mach/pm.h"
diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c
index 7d28c885d238..291226b952a9 100644
--- a/arch/x86/power/hibernate_32.c
+++ b/arch/x86/power/hibernate_32.c
@@ -13,13 +13,11 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mmzone.h>
+#include <asm/sections.h>
/* Defined in hibernate_asm_32.S */
extern int restore_image(void);
-/* References to section boundaries */
-extern const void __nosave_begin, __nosave_end;
-
/* Pointer to the temporary resume page tables */
pgd_t *resume_pg_dir;
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index 35e2bb6c0f37..009947d419a6 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -17,11 +17,9 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mtrr.h>
+#include <asm/sections.h>
#include <asm/suspend.h>
-/* References to section boundaries */
-extern __visible const void __nosave_begin, __nosave_end;
-
/* Defined in hibernate_asm_64.S */
extern asmlinkage __visible int restore_image(void);
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index f1a24b5c3b90..b58fd667f87b 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -3,6 +3,8 @@
/* References to section boundaries */
+#include <linux/compiler.h>
+
/*
* Usage guidelines:
* _text, _data: architecture specific, don't use them in arch-independent code
@@ -37,6 +39,8 @@ extern char __start_rodata[], __end_rodata[];
/* Start and end of .ctors section - used for constructor calls. */
extern char __ctors_start[], __ctors_end[];
+extern __visible const void __nosave_begin, __nosave_end;
+
/* function descriptor handling (if any). Override
* in asm/sections.h */
#ifndef dereference_function_descriptor
--
1.9.1
--
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