Commit-ID:  e267d97b83d9cecc16c54825f9f3ac7f72dc1e1e
Gitweb:     http://git.kernel.org/tip/e267d97b83d9cecc16c54825f9f3ac7f72dc1e1e
Author:     Kees Cook <[email protected]>
AuthorDate: Wed, 17 Feb 2016 14:41:12 -0800
Committer:  Ingo Molnar <[email protected]>
CommitDate: Mon, 22 Feb 2016 08:51:37 +0100

asm-generic: Consolidate mark_rodata_ro()

Instead of defining mark_rodata_ro() in each architecture, consolidate it.

Signed-off-by: Kees Cook <[email protected]>
Acked-by: Will Deacon <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Andy Gross <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Ashok Kumar <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Gerst <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: David Brown <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Denys Vlasenko <[email protected]>
Cc: Emese Revfy <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: James E.J. Bottomley <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Luis R. Rodriguez <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Mathias Krause <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Nicolas Pitre <[email protected]>
Cc: PaX Team <[email protected]>
Cc: Paul Gortmaker <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ross Zwisler <[email protected]>
Cc: Russell King <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Toshi Kani <[email protected]>
Cc: [email protected]
Cc: linux-arch <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 arch/arm/include/asm/cacheflush.h    | 1 -
 arch/arm64/include/asm/cacheflush.h  | 4 ----
 arch/parisc/include/asm/cacheflush.h | 4 ----
 arch/x86/include/asm/cacheflush.h    | 1 -
 include/linux/init.h                 | 4 ++++
 5 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h 
b/arch/arm/include/asm/cacheflush.h
index d5525bf..9156fc3 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -491,7 +491,6 @@ static inline int set_memory_nx(unsigned long addr, int 
numpages) { return 0; }
 #endif
 
 #ifdef CONFIG_DEBUG_RODATA
-void mark_rodata_ro(void);
 void set_kernel_text_rw(void);
 void set_kernel_text_ro(void);
 #else
diff --git a/arch/arm64/include/asm/cacheflush.h 
b/arch/arm64/include/asm/cacheflush.h
index 7fc294c..22dda61 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -156,8 +156,4 @@ int set_memory_rw(unsigned long addr, int numpages);
 int set_memory_x(unsigned long addr, int numpages);
 int set_memory_nx(unsigned long addr, int numpages);
 
-#ifdef CONFIG_DEBUG_RODATA
-void mark_rodata_ro(void);
-#endif
-
 #endif
diff --git a/arch/parisc/include/asm/cacheflush.h 
b/arch/parisc/include/asm/cacheflush.h
index 845272c..7bd69bd 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -121,10 +121,6 @@ flush_anon_page(struct vm_area_struct *vma, struct page 
*page, unsigned long vma
        }
 }
 
-#ifdef CONFIG_DEBUG_RODATA
-void mark_rodata_ro(void);
-#endif
-
 #include <asm/kmap_types.h>
 
 #define ARCH_HAS_KMAP
diff --git a/arch/x86/include/asm/cacheflush.h 
b/arch/x86/include/asm/cacheflush.h
index e63aa38..c8cff75 100644
--- a/arch/x86/include/asm/cacheflush.h
+++ b/arch/x86/include/asm/cacheflush.h
@@ -92,7 +92,6 @@ void clflush_cache_range(void *addr, unsigned int size);
 #define mmio_flush_range(addr, size) clflush_cache_range(addr, size)
 
 #ifdef CONFIG_DEBUG_RODATA
-void mark_rodata_ro(void);
 extern const int rodata_test_data;
 extern int kernel_set_to_readonly;
 void set_kernel_text_rw(void);
diff --git a/include/linux/init.h b/include/linux/init.h
index b449f37..aedb254 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -142,6 +142,10 @@ void prepare_namespace(void);
 void __init load_default_modules(void);
 int __init init_rootfs(void);
 
+#ifdef CONFIG_DEBUG_RODATA
+void mark_rodata_ro(void);
+#endif
+
 extern void (*late_time_init)(void);
 
 extern bool initcall_debug;

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