linux-kernel - Re: [PATCH 1/7] mm: allocate mm_cpumask dynamically based on nr_cpu

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Date:   Sun, 08 Jul 2018 16:44:04 +0200
From:   Mike Galbraith <efault@....de>
To:     Rik van Riel <riel@...riel.com>, linux-kernel@...r.kernel.org
Cc:     x86@...nel.org, luto@...nel.org, dave.hansen@...ux.intel.com,
        mingo@...nel.org, kernel-team@...com, tglx@...utronix.de,
        songliubraving@...com, hpa@...or.com
Subject: Re: [PATCH 1/7] mm: allocate mm_cpumask dynamically based on
 nr_cpu_ids

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);
   ^~~~~~~~~~~~~~~~~~~