openrisc: Use the declarations provided by <asm/sections.h>

Openrisc's private vmlinux.h duplicates a few definitions that are already
provided by asm-generic/sections.h. The former is used by setup.c only,
while the latter is already used everywhere else.

Convert setup.c to use the generic version:
  - Include <asm/sections.h>,
  - Remove the (slightly different) extern declarations,
  - Remove the no longer needed address-of ('&') operators.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonas Bonn <jonas@southpole.se>

diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index d7359ff..89c4978 100644 (file)
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -40,6 +40,7 @@
 #include <linux/device.h>
 #include <linux/of_platform.h>
 
+#include <asm/sections.h>
 #include <asm/segment.h>
 #include <asm/pgtable.h>
 #include <asm/types.h>
@@ -77,7 +78,7 @@ static unsigned long __init setup_memory(void)
 
        ram_start_pfn = PFN_UP(memory_start);
        /* free_ram_start_pfn is first page after kernel */
-       free_ram_start_pfn = PFN_UP(__pa(&_end));
+       free_ram_start_pfn = PFN_UP(__pa(_end));
        ram_end_pfn = PFN_DOWN(memblock_end_of_DRAM());
 
        max_pfn = ram_end_pfn;
@@ -290,10 +291,10 @@ void __init setup_arch(char **cmdline_p)
        setup_cpuinfo();
 
        /* process 1's initial memory region is the kernel code/data */
-       init_mm.start_code = (unsigned long)&_stext;
-       init_mm.end_code = (unsigned long)&_etext;
-       init_mm.end_data = (unsigned long)&_edata;
-       init_mm.brk = (unsigned long)&_end;
+       init_mm.start_code = (unsigned long)_stext;
+       init_mm.end_code = (unsigned long)_etext;
+       init_mm.end_data = (unsigned long)_edata;
+       init_mm.brk = (unsigned long)_end;
 
 #ifdef CONFIG_BLK_DEV_INITRD
        initrd_start = (unsigned long)&__initrd_start;

diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
index ee842a2..3f7b2b2 100644 (file)
--- a/arch/openrisc/kernel/vmlinux.h
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -1,7 +1,6 @@
 #ifndef __OPENRISC_VMLINUX_H_
 #define __OPENRISC_VMLINUX_H_
 
-extern char _stext, _etext, _edata, _end;
 #ifdef CONFIG_BLK_DEV_INITRD
 extern char __initrd_start, __initrd_end;
 extern char __initramfs_start;