linux-kernel - [PATCH 3/4] tile: Remove tile-specific _sinitdata and

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Date:	Fri, 29 Aug 2014 22:18:35 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	David Howells <dhowells@...hat.com>,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Chris Metcalf <cmetcalf@...era.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-kernel@...r.kernel.org,
	Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH 3/4] tile: Remove tile-specific _sinitdata and _einitdata

Use standard __init_begin and __init_end instead.

Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Acked-by: Chris Metcalf <cmetcalf@...era.com>
---
 arch/tile/include/asm/sections.h |  3 ---
 arch/tile/kernel/vmlinux.lds.S   |  2 --
 arch/tile/mm/init.c              | 10 +++++-----
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/tile/include/asm/sections.h b/arch/tile/include/asm/sections.h
index 5d5d3b739a6b..86a746243dc8 100644
--- a/arch/tile/include/asm/sections.h
+++ b/arch/tile/include/asm/sections.h
@@ -19,9 +19,6 @@
 
 #include <asm-generic/sections.h>
 
-/* Text and data are at different areas in the kernel VA space. */
-extern char _sinitdata[], _einitdata[];
-
 /* Write-once data is writable only till the end of initialization. */
 extern char __w1data_begin[], __w1data_end[];
 
diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S
index f1819423ffc9..0e059a0101ea 100644
--- a/arch/tile/kernel/vmlinux.lds.S
+++ b/arch/tile/kernel/vmlinux.lds.S
@@ -66,11 +66,9 @@ SECTIONS
 
   . = ALIGN(PAGE_SIZE);
   __init_begin = .;
-  VMLINUX_SYMBOL(_sinitdata) = .;
   INIT_DATA_SECTION(16) :data =0
   PERCPU_SECTION(L2_CACHE_BYTES)
   . = ALIGN(PAGE_SIZE);
-  VMLINUX_SYMBOL(_einitdata) = .;
   __init_end = .;
 
   _sdata = .;                   /* Start of data section */
diff --git a/arch/tile/mm/init.c b/arch/tile/mm/init.c
index bfb3127b4df9..930c95526762 100644
--- a/arch/tile/mm/init.c
+++ b/arch/tile/mm/init.c
@@ -254,7 +254,7 @@ static pgprot_t __init init_pgprot(ulong address)
 	 * Everything else that isn't data or bss is heap, so mark it
 	 * with the initial heap home (hash-for-home, or this cpu).  This
 	 * includes any addresses after the loaded image and any address before
-	 * _einitdata, since we already captured the case of text before
+	 * __init_end, since we already captured the case of text before
 	 * _sinittext, and __pa(einittext) is approximately __pa(sinitdata).
 	 *
 	 * All the LOWMEM pages that we mark this way will get their
@@ -263,7 +263,7 @@ static pgprot_t __init init_pgprot(ulong address)
 	 * homes, but with a zero free_time we don't have to actually
 	 * do a flush action the first time we use them, either.
 	 */
-	if (address >= (ulong) _end || address < (ulong) _einitdata)
+	if (address >= (ulong) _end || address < (ulong) __init_end)
 		return construct_pgprot(PAGE_KERNEL, initial_heap_home());
 
 	/* Use hash-for-home if requested for data/bss. */
@@ -632,7 +632,7 @@ int devmem_is_allowed(unsigned long pagenr)
 {
 	return pagenr < kaddr_to_pfn(_end) &&
 		!(pagenr >= kaddr_to_pfn(&init_thread_union) ||
-		  pagenr < kaddr_to_pfn(_einitdata)) &&
+		  pagenr < kaddr_to_pfn(__init_end)) &&
 		!(pagenr >= kaddr_to_pfn(_sinittext) ||
 		  pagenr <= kaddr_to_pfn(_einittext-1));
 }
@@ -975,8 +975,8 @@ void free_initmem(void)
 
 	/* Free the data pages that we won't use again after init. */
 	free_init_pages("unused kernel data",
-			(unsigned long)_sinitdata,
-			(unsigned long)_einitdata);
+			(unsigned long)__init_begin,
+			(unsigned long)__init_end);
 
 	/*
 	 * Free the pages mapped from 0xc0000000 that correspond to code
-- 
1.9.1

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