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m68k: rename global variable vmalloc_end to m68k_vmalloc_end

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On SUN3, m68k defines macro VMALLOC_END as unsigned long variable
vmalloc_end which is adjusted from mmu_emu_init().  This becomes
problematic if a local variables vmalloc_end is defined in some
function (not very unlikely) and VMALLOC_END is used in the function -
the function thinks its referencing the global VMALLOC_END value but
would be referencing its own local vmalloc_end variable.

Rename the global variable to m68k_vmlloc_end which is much less
likely to be used as local variable name.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
This commit is contained in:
Tejun Heo
2009-12-09 17:43:19 +09:00
parent 50de1a8ef1
commit 51e99be00c
2 changed files with 6 additions and 6 deletions
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4
arch/m68k/include/asm/pgtable_mm.h
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@@ -83,9 +83,9 @@
#define VMALLOC_START (((unsigned long) high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
#define VMALLOC_END KMAP_START
#else
extern unsigned long vmalloc_end;
extern unsigned long m68k_vmalloc_end;
#define VMALLOC_START 0x0f800000
#define VMALLOC_END vmalloc_end
#define VMALLOC_END m68k_vmalloc_end
#endif /* CONFIG_SUN3 */
/* zero page used for uninitialized stuff */