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x86: remove unnecessary save_mr() sanity check 

Impact: cleanup

The save_mr() function already checks that start_pfn is less than
end_pfn so we can remove the unnecessary check which reduces the
diff between the 32-bit and the 64-bit versions of init_memory_mapping().

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1236257708-27269-6-git-send-email-penberg@cs.helsinki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Pekka Enberg 2009-03-05 14:54:57 +02:00 committed by Ingo Molnar
parent 54e63f3a42
commit 96083ca11b
1 changed files with 1 additions and 2 deletions
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3
arch/x86/mm/init_32.c
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@ -1008,8 +1008,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start,
/* tail is not big page (2M) alignment */
start_pfn = pos>>PAGE_SHIFT;
end_pfn = end>>PAGE_SHIFT;
if (start_pfn < end_pfn)
nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
nr_range = save_mr(mr, nr_range, start_pfn, end_pfn, 0);
/* try to merge same page size and continuous */
for (i = 0; nr_range > 1 && i < nr_range - 1; i++) {