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m68k/coldfire: use PFN_DOWN macro

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Replace ((x) >> PAGE_SHIFT) with the predefined PFN_DOWN macro.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Alexander Kuleshov 2015-08-12 13:14:59 +06:00 committed by Greg Ungerer
parent 5bbc08fb0f
commit 50e48bd067
1 changed files with 5 additions and 4 deletions
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9
arch/m68k/coldfire/m54xx.c
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@ -25,6 +25,7 @@
#include <asm/m54xxgpt.h>
#ifdef CONFIG_MMU
#include <asm/mmu_context.h>
#include <linux/pfn.h>
#endif
/***************************************************************************/
@ -91,13 +92,13 @@ static void __init mcf54xx_bootmem_alloc(void)
m68k_memory[0].size = _ramend - _rambase;
/* compute total pages in system */
num_pages = (_ramend - _rambase) >> PAGE_SHIFT;
num_pages = PFN_DOWN(_ramend - _rambase);
/* page numbers */
memstart = PAGE_ALIGN(_ramstart);
min_low_pfn = _rambase >> PAGE_SHIFT;
start_pfn = memstart >> PAGE_SHIFT;
max_low_pfn = _ramend >> PAGE_SHIFT;
min_low_pfn = PFN_DOWN(_rambase);
start_pfn = PFN_DOWN(memstart);
max_low_pfn = PFN_DOWN(_ramend);
high_memory = (void *)_ramend;
m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;