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linux/mm/sparse.c
Wei Yang 861dd8b9e3 mm/sparse: nr_pages won't be 0 
Function subsection_map_init() is only used in free_area_init() in the
loop of for_each_mem_pfn_range().  And we are sure in each iteration of
for_each_mem_pfn_range(), start_pfn < end_pfn.

So nr_pages is not possible to be 0 and we can remove the check.

Link: https://lkml.kernel.org/r/20240619010612.20740-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-03 19:30:19 -07:00

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