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arm: mm: use __pfn_to_section() to get mem_section

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Replace the open-coded '__nr_to_section(pfn_to_section_nr(pfn))' in
pfn_valid() with a more concise call to '__pfn_to_section(pfn)'.

No functional change.

Signed-off-by: Guixiong Wei <guixiongwei@gmail.com>
Link: https://lore.kernel.org/r/20200430161858.11379-1-guixiongwei@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Guixiong Wei 2020-05-01 06:18:58 +14:00 committed by Will Deacon
parent ada66f1837
commit 037d9303a7
1 changed files with 1 additions and 1 deletions
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arch/arm64/mm/init.c
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@ -272,7 +272,7 @@ int pfn_valid(unsigned long pfn)
if (pfn_to_section_nr(pfn) >= NR_MEM_SECTIONS)
return 0;
if (!valid_section(__nr_to_section(pfn_to_section_nr(pfn))))
if (!valid_section(__pfn_to_section(pfn)))
return 0;
#endif
return memblock_is_map_memory(addr);