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[S390] sparsemem: use SPARSEMEM_STATIC if !64BIT.
In case of !64BIT kernel we end up with a zero sized mem_section array. This happens because NR_MEM_SECTIONS is smaller than SECTIONS_PER_ROOT but we have: #define NR_SECTION_ROOTS (NR_MEM_SECTIONS / SECTIONS_PER_ROOT) and struct mem_section *mem_section[NR_SECTION_ROOTS]; So fix this by selecting SPARSEMEM_STATIC which makes sure that SECTIONS_PER_ROOT is 1. Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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