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SubjectRe: [PATCH 1/7] mm: allocate mm_cpumask dynamically based on nr_cpu_ids
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BTW, a second gripe ala the first, but wrt mm_init_cpumask(&efi_mm):

In function ‘bitmap_zero’,
inlined from ‘cpumask_clear’ at ./include/linux/cpumask.h:378:2,
inlined from ‘mm_init_cpumask’ at ./include/linux/mm_types.h:504:2,
inlined from ‘efi_alloc_page_tables’ at arch/x86/platform/efi/efi_64.c:235:2:
./include/linux/bitmap.h:208:3: warning: ‘memset’ writing 64 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=]
memset(dst, 0, len);
^~~~~~~~~~~~~~~~~~~

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